Search Results — 2000 specimen records retrieved (1552 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC116945  Carex subbracteata H. L. Mason 1921-5-14 s.n. Alameda Hayward Comment
  CAS-BOT-BC147189  Rubus parviflorus H. L. Mason 1921-5-14 s.n. Alameda [Haywards] Hayward Comment
  CAS-BOT-BC150304  Diplacus aurantiacus H. L. Mason 1921-5-14 s.n. Alameda [Haywards] Hayward Comment
  CAS-BOT-BC150305  Diplacus aurantiacus H. L. Mason 1917-3-10 49 Alameda Temescal (Probably Lake Temescal, Berkeley Hills) Comment
  CAS-BOT-BC151211  Prunus virginiana var. demissa H. L. Mason 1921-5-14 s.n. Alameda Haywards Comment
  CAS-BOT-BC199256  Vaccinium ovatum H. L. Mason 1917-2-9 27 Alameda Berkeley Hills Comment
  CAS-BOT-BC209379  Ribes sanguineum var. glutinosum H. L. Mason 1917-2-2 19 Alameda Berkeley Hills Comment
  CAS-BOT-BC241464  Lonicera involucrata var. ledebourii H. L. Mason 1917-2-9 24 Alameda Berkeley Hills Comment
  CAS-BOT-BC249092  Castilleja affinis H. L. Mason 1921-5-14 s.n. Alameda Haywards [Hayward] Comment
  CAS-BOT-BC67398  Tropidocarpum gracile H. L. Mason 1932-3-19 6817 Alameda Road from Mountain House to Midway, west of Tracy. Comment
  JEPS69887 Image available Polemonium carneum H. L. Mason 1932-4-16 Alameda Stonybrook Creek; ; Summit of road Comment
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May 31 2011
  RSA77634  Dirca occidentalis H. L. Mason 1925-2-12 1238 Alameda Summit of Skyline Road, Oakland Hills Comment
  UC1039608  Gutierrezia californica Herbert L. Mason 1935-10-6 10054 Alameda Corral Hollow Comment
  UC1076214  Lepidium latipes Herbert L. Mason 1929-3-27 5116 Alameda Altamont Pass Comment
  UC1076465  Equisetum telmateia subsp. braunii Herbert L. Mason 1926-3-17 2741 Alameda Strawberry Canyon Berkeley Comment
  UC1077119  Adiantum jordanii Herbert L. Mason 1925-3-7 1278 Alameda 0.5 mi sw of Sunol (bluff above stream junction) Comment
  UC1713661  Scutellaria tuberosa Herbert L. Mason 1931-3-13 5815 Alameda Lake Chabot Comment
  UC555391  Melilotus indicus H. L. Mason 1928-5-10 4576 Alameda University of California campus Berkeley Comment
  UC555458  Trifolium ciliolatum H. L. Mason 1928-4-15 4352 Alameda e end Moraga Ridge Comment
  UC555467  Pediomelum californicum Herbert L. Mason 1928-5-6 4573 Alameda Cedar Mountain Cedar Mountain (mountain top) Comment
  UC555616  Trifolium albopurpureum var. albopurpureum H. L. Mason 1926-4-10 Alameda Arroyo Machp Canyon Cedar Mtn Comment
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Jan 24 2013
  UC555653  Cercocarpus betuloides var. betuloides H. L. Mason 1928-10-31 3645 Alameda se side of Cedar Mountain Comment
  UC555681  Rubus laciniatus H. L. Mason 1925-12-12 Alameda San Leandro Canyon Oakland Hills, San Leandro Canyon Comment
  UC565459  Scutellaria tuberosa Herbert L. Mason 1925-3-2 1274 Alameda Mills College Comment
  UC570942  Saxifraga californica Herbert L. Mason 1926-4-11 2832 Alameda Cedar Mountain, Rancho Repose Cedar Mountain; , Rancho Repose Comment
  UC571167  Platanus racemosa Herbert L. Mason 1925-3-7 1276 Alameda along creek 1/2 mi w Sunol; Niles Creek Comment
  UC573147  Plagiobothrys nothofulvus Herbert L. Mason 1928-5-6 4575 Alameda Arroyo Mocho 6 mi from Livermore Comment
  UC581522  Viola purpurea subsp. quercetorum H. L. Mason 1928-5-6 4565 Alameda Cedar Mountain; Mount Hamilton Range, Cedar Mountain Comment
  UC592189  Nemophila menziesii H. L. Mason 1925-3-7 1287 Alameda bluff above stream junction one-half mi sw Sunol; sw of Sunol Comment
  UC634703  Clarkia rubicunda H. L. Mason 1926-5-26 3247 Alameda Niles Canyon Comment
  UC634709  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1926-5-26 3246 Alameda Niles Canyon Comment
  UC634766  Garrya elliptica H. L. Mason 1926-1-9 2635 Alameda head of San Leandro Canyon Comment
  UC634791  Garrya flavescens H. L. Mason 1926-4-11 2855 Alameda Cedar Mountain Mount Hamilton Range (and Rancho Repose) Comment
  UC634805  Ceanothus thyrsiflorus Herbert L. Mason 1923-10-26 782 Alameda Claremont Canyon Berkeley Hills, Claremont Canyon Comment
  UC634841  Modiola caroliniana Herbert L. Mason 1926-5-15 3211 Alameda U. C. Campus, Berkeley Comment
  UC635228  Dichelostemma congestum H. L. Mason 1924-5-13 1010 Alameda Berkeley Hills Comment
  UC635424  Salvia verbenacea Herbert L. Mason 1926-9-14 3640 Alameda campus Berkeley Comment
  UC672159  Calochortus albus Herbert L. Mason 1926-5-26 3242 Alameda Niles Canyon Comment
  UC672217  Pseudognaphalium stramineum H. L. Mason 1932-5-4 7057 Alameda Laundry Farm Oakland Hills (Oakland Hills) Comment
  UC672271  Logfia gallica H. L. Mason 1932-5-4 7054 Alameda Laundry Farm Oakland Hills, Laundry Farm Comment
  UC672330  Phacelia divaricata Herbert L. Mason 1927-3-20 3659 Alameda 17 mi s Livermore; Arroyo Mocho Comment
  UC672333  Phacelia divaricata Herbert L. Mason 1926-4-11 2852 Alameda Rancho Repose Cedar Mountain Comment
  UC672337  Phacelia breweri Herbert L. Mason 1928-5-6 4550 Alameda Cedar Mountain Comment
  UC672593  Thysanocarpus curvipes H. L. Mason 1926-4-11 2846 Alameda Arroyo Mocho Cedar Mountain (Cedar Mountain, Rancho Repose); Mount Hamilton Range, , Arroyo Mocho Comment
  UC672614  Myrica californica Herbert L. Mason 1923-6-2 367 Alameda Berkeley Hills, Church Bush Gulch Comment
  UC673304  Tropidocarpum gracile H. L. Mason 1932-3-19 6817 Alameda w Tracy (road from Mountain House to Midway) Comment
  UC673447  Triphysaria pusilla H. L. Mason 1924-5-13 1013 Alameda Berkeley Hills Comment
  UC673618  Micropus amphibolus H. L. Mason 1932-5-4 7049 Alameda Laundry Farm Oakland Hills Comment
  UC694160  Psilocarphus tenellus H. L. Mason 1933-4-17 7166 Alameda Stony Brook Comment
  UC699630  Lapsana communis H. L. Mason 1944-7-6 Alameda University of California, Berkeley Campus Comment
  UC908226  Gilia clivorum Herbert L. Mason 1935-3-24 8169 Alameda summit of grade between Livermore and Tesla; summit of grade btw Livermore and Tesla Comment
  UC908957  Linanthus androsaceus Herbert L. Mason 1926-4-10 2817 Alameda Cedar Mountain Mount Hamilton Range, Arroyo Mocho Comment
  UC912254  Micropus californicus var. californicus Lucile Mason 1934-4-8 Alameda 10 mi e Livermore (on Marsh Creek, Livermore Road); Marsh Creek Comment
  UC912273  Deinandra corymbosa Herbert L. Mason 1926-6-15 3393 Alameda campus Berkeley University of California at Berkeley Comment
  UC912375  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1926-4-11 2836 Alameda Cedar Mountain, Rancho Repose Rancho Repose; Cedar Mountain, Rancho Repose Comment
  UC912458  Plectritis macrocera Herbert L. Mason 1926-4-11 2835 Alameda Cedar Mountain, Rancho Repose Rancho Repose; Cedar Mountain, Rancho Repose Comment
  UC912463  Plectritis macrocera Herbert L. Mason 1926-4-10 2818 Alameda Arroyo Mocho Canyon Comment
  UC912577  Vulpia bromoides Herbert L. Mason 1931-4-24 5857 Alameda Berkeley Hills; above Claremont Hotel Comment
  UC912586  Koeleria macrantha Herbert L. Mason 1932-4-28 7051 Alameda Oakland Hills; Laundry Farm Comment
  UC912653  Melica torreyana H. L. Mason 1926-5-26 3238 Alameda Niles Canyon Comment
  UC964772  Malva sylvestris Herbert L. Mason 1952-6-10 Alameda near Dwinelle Hall (Berkeley, University of California); Berkeley, University of California Comment
  UCD45931  Quercus durata var. durata Herbert L. Mason 1929-10-20 5509 Alameda Cedar Mountain. Comment
  UCD97452  Amaranthus deflexus Herbert L. Mason 1927-6-20 3792 Alameda Parking strips of Berkeley. Comment
  CAS-BOT-BC198426  Lupinus albifrons var. albifrons H. L. Mason 1921-5-1 s.n. Alameda Hawards Comment
  CAS-BOT-BC29604  Agoseris grandiflora var. grandiflora Herbert L. Mason 1924-5-14 s.n. Alameda Haywards Comment
  CAS-BOT-BC386879  Silene gallica H. L. Mason 1921-5-1 s.n. Alameda Hills back of Haywards. Comment
  CAS-BOT-BC500027  Dichelostemma capitatum H. L. Mason 1917-4-6 86 Alameda Berkeley Hills. Comment
  JEPS35213  Monolopia major H. L. Mason 1932-3-20 Alameda plain e Mountain House (about 13 mi ne of Livermore) Comment
  RSA518826  Erysimum capitatum var. capitatum H. L. Mason 1932-3-20 s.n. Alameda 2 mi E of Midway. Comment
  SEINET11191707  Ceanothus impressus H. Mason 1951-3-31 s.n. Alameda Berkeley. Comment
  UC1083347  Muilla maritima Herbert L. Mason 1931-3-1 5795 Alameda Cow Hollow Comment
  UC1106909  Lemna minuscula Herbert L. Mason 1937-6-17 11545 Alameda Thornhill pool, on road to Moraga, Oakland Oakland; , Thornhill pool Comment
  UC672282  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1934-4-8 Alameda 10 mi from Marsh Creek. Livermore; Livermore Road Comment
  UC673361  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-3-7 1282 Alameda Niles Canyon , Niles Canyon (Sunol) Comment
  UC909031  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1924-4-20 902 Alameda along higher slopes of the Berkeley Hills Berkeley Hills Comment
  UCD136935  Polypodium californicum Herbert L. Mason 1925-3-7 1279 Alameda Sunol. Comment
  CAS-BOT-BC363599  Senecio fremontii var. occidentalis Herbert L. Mason 1940-7-30 12352 Alpine Sierra Nevada. Hills north of Carson Pass Comment
  UC1039619  Mimulus tilingii Herbert L. Mason 1940-7-25 12337 Alpine hills n Kit Carson Peak 2682 Comment
  UC665680  Polygonum davisiae Herbert L. Mason 1940-7-30 12353 Alpine hills n Carson Pass; Sierra Nevada 2682 Comment
  UC672153  Calochortus coeruleus Herbert L. Mason 1926-5-30 3334 Alpine below Cook Station (w side of grade) Comment
Read comments
May 24 2016
  UC672378  Draperia systyla Herbert L. Mason 1926-5-30 3337 Alpine West side of grade below Cook Station Comment
  CAS-BOT-BC144071  Horkelia parryi H. L. Mason 1933-5-29 7253 Amador Two miles south of Ione Comment
  CAS-BOT-BC221097  Salvia sonomensis Herbert L. Mason 1932-4-24 s.n. Amador Three mi. so. of Ione Comment
  CAS-BOT-BC40089  Arctostaphylos myrtifolia H. L. Mason 1926-5-30 3339 Amador Hill south of Ione Comment
  POM199446  Horkelia parryi H. L. Mason 1932-4-24 6978 Amador 3 miles S of Ione Comment
  POM199581  Salvia sonomensis H. L. Mason 1932-4-24 s.n. Amador 3 miles S of Ione Comment
  SFV16107  Ceanothus integerrimus S. Mason 1993-7-26 46 Amador Sierra Nevada Volcano, off Pioneer-Volcano Road along edge of Golddust Road. Disturbed roadside. 762 Comment
  UC1101536  Elatine triandra Herbert L. Mason 1933-9-2 7257 Amador Silver Lake Sierra Nevada Comment
  UC1111013  Muhlenbergia richardsonis Herbert L. Mason 1933-9-2 7268 Amador Silver Lake Comment
  UC1199509  Plantago coronopus Herbert L. Mason 1933-5-29 7251 Amador hills above Ione Comment
  UC555298  Rubus laciniatus H. L. Mason 1926-5-30 3338 Amador hill s Ione; hill s of Ione Comment
  UC555602  Trifolium barbigerum H. L. Mason 1928-5-3 4472 Amador hills near Carbondale Comment
  UC565530  Sanicula bipinnata H. L. Mason 1928-5-3 4460 Amador w of Ione (Jackson Creek Bridge); Jackson Creek Bridge Comment
  UC570729  Pogogyne zizyphoroides H. L. Mason 1928-5-3 4476 Amador Hills near Carbondale Comment
  UC571080  Arctostaphylos myrtifolia H. L. Mason 1928-5-3 4468 Amador one mi s Ione Comment
  UC672172  Gamochaeta stachydifolia H. L. Mason 1932-4-25 6991 Amador hill above Ione Comment
  UC672547  Gratiola ebracteata H. L. Mason 1928-5-3 4473 Amador near Carbondale; hills near Carbondale Comment
  UC673316  Ivesia santolinoides Herbert L. Mason 1933-9-2 7264 Amador Silver Lake; Sierra Nevada Comment
  UC673462  Castilleja attenuata H. L. Mason 1928-5-3 4459 Amador w of Ione (Jackson Creek Bridge) Comment
  UC908668  Linanthus bicolor Herbert L. Mason 1928-5-3 4461 Amador w of Ione (Jackson Creek Bridge) Comment
  UC912465  Plectritis macrocera H. L. Mason 1932-4-25 7006 Amador road Ione to Latrobe (Cosumnes River Bridge); Cosumnes River Bridge Comment
  UC912492  Delphinium variegatum subsp. variegatum Herbert L. Mason 1932-4-25 6999 Amador road from Ione to Michigan Bar Voorhees School Comment
  UC912548  Antennaria rosea Herbert L. Mason 1933-9-2 7266 Amador Silver Lake Sierra Nevada Mountains, Silver Lake Comment
  UC912650  Nassella pulchra H. L. Mason 1928-5-3 4470 Amador hills near Carbondale Comment
  UC936143  Calendula arvensis Herbert L. Mason 1948-3-14 Amador highway to Jackson, Ione, on a hill near old mines Comment
  UC936195  Vulpia microstachys var. confusa Herbert L. Mason 1932-4-25 6996 Amador on road from Ione to Michigan Bar (Voorhees School) Comment
  UC963764  Navarretia divaricata H. L. Mason 1933-9-2 7262 Amador Silver Lake Sierra Nevada Comment
  UC963778  Navarretia breweri Herbert L. Mason 1933-9-2 7261 Amador Silver Lake Sierra Nevada Mountains Comment
  SFV16109  Hypericum perforatum S. Mason 1993-7-26 43 Amador Sierra Nevada Volcano, off Pioneer-Volcano Road along edge of Golddust Road. Disturbed roadside. 762 Comment
  UC1191147  Linanthus parviflorus Herbert L. Mason 1928-5-3 4482 Amador s of Cosumnes River (opposite Clark Creek) Comment
  UC570683  Solanum umbelliferum H. L. Mason 1928-5-3 4485 Amador opposite of Clark Creek (s bank of Cosumnes River); Cosumnes River Comment
  CAS-BOT-BC111372  Schoenoplectus acutus var. occidentalis Herbert L. Mason; Verne Grant 1946-8-14 13031 Butte Canal near big pond on Sacramento Outing Club, Butte Sink Comment
  CAS-BOT-BC111375  Schoenoplectus acutus var. occidentalis Herbert L. Mason; Verne Grant 1946-8-7 12993 Butte Big pond near river, Grey Lodge Game Refuge; Gridley Road north of Butte Sink. Comment
  CAS-BOT-BC111661  Schoenoplectus mucronatus Herbert L. Mason 1946-9-27 13135 Butte 3 miles west of Biggs. Comment
  CAS-BOT-BC113637  Eleocharis acicularis Herbert L. Mason; Verne Grant 1945-7-19 12635 Butte Marshes along Butte Creek, north of Marysville Buttes, Grey Lodge Game Refuge. Comment
  CAS-BOT-BC114742  Cyperus difformis Herbert L. Mason 1945-9-19 12737 Butte Gray Lodge Game Refuge, NW of Pennington Comment
  CAS-BOT-BC190087  Crypsis schoenoides Herbert L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  CAS-BOT-BC198557  Lotus Herbert L. Mason 1927-5-10 3711 Butte Cherokee Mine, Table Mt. northeast of Oroville Comment
  CAS-BOT-BC224424  Cuscuta californica Herbert L. Mason; Verne Grant 1946-9-27 13132 Butte Butte Sink. Graylodge Game Refuge Comment
  CAS-BOT-BC31373  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12731 Butte Gray Lodge Game Refuge, NW of Pennington. Comment
  POM313036  Damasonium californicum H. L. Mason 1927-5-9 3705 Butte Sacramento Valley, 15 mi W of Oroville. Comment
  SEINET199879  Cyperus strigosus Herbert L. Mason, Verne Grant 1946-9-27 13140 Butte 3 miles W of Biggs. Comment
  UC1100138  Echinodorus berteroi Herbert L. Mason and Verne Grant 1946-8-7 12989 Butte Gridley rd. n. of Butte Sink Comment
  UC1100267  Echinochloa crus-galli Herbert L. Mason 1945-9-19 12741 Butte nw of Pennington Gray Lodge Game Refuge Comment
  UC1100535  Cyperus eragrostis Herbert L. Mason 1945-9-19 12736 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  UC1100549  Cyperus difformis Herbert L. Mason and Verne Grant 1946-8-14 13024 Butte canal near big pond on Sacramento Outing Club; Butte Sink Comment
  UC1100919  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house; Butte Sink, Greylodge Game Refuge Comment
  UC1101161  Polygonum lapathifolium Herbert L. Mason and Verne Grant 1946-8-14 13028 Butte Sacramento Outing Club Butte Sink (canal near big pond) Comment
  UC1101419  Ammannia coccinea Herbert L. Mason and Verne Grant 1946-9-27 13141 -A Butte 3 mi. w. Biggs Comment
  UC1101461  Utricularia gibba Herbert L. Mason and Verne Grant 1941-9-27 13137 a Butte 3 mi. w. Biggs (Butte Sink); Butte Sink Comment
  UC1101555  Elatine ambigua Herbert L. Mason and Verne Grant 1946-8-15 13052 Butte near caretaker's house (833 Irrigation Ditch); Butte Sink, Greylodge Game Refuge Comment
  UC1191306  Atriplex heterosperma Herbert L. Mason, Verne Grant 1946-8-14 13034 Butte canal near big pond Sacramento Outing Club (Butte Sink); canal nr big pond on Sacramento Outing Club, Butte Sink Comment
  UC672088  Odontostomum hartwegii Herbert L. Mason 1927-5-10 3710 Butte n.e. of Oroville (Table Mt., summit of plateau); Table Mt. Comment
  UC672161  Calochortus albus Herbert L. Mason 1927-5-10 3719 Butte ne of Oroville; Table Mountain, Coal Creek Comment
  UC672620  Marsilea vestita subsp. vestita Herbert L. Mason 1927-5-9 3706 Butte 15 mi w Oroville; Sacramento Valley Comment
  UC971834  Limnanthes alba subsp. alba Charles T. Mason Jr. 1949-4-23 1252 Butte 7 mi s Oroville (in ditch along e side of State Hwy 24) Comment
  UCD139990  Heteranthera dubia Herbert L. Mason; Verne Grant 1946-8-14 13041 Butte Butte Sink. Comment
  UCD99319  Persicaria hydropiperoides Herbert L. Mason; Verne Grant 1946-8-14 13027 Butte Sacramento Outing Club. Comment
  CAS-BOT-BC415016  Sedella pumila Herbert L. Mason 1941-4-6 12409 Butte Three miles S of Chico near junction of road to Paradise 91 Comment
  CAS-BOT-BC453812  Potamogeton nodosus Herbert L. Mason 1945-7-10 12640 Butte Sanford slough, Butte Sink, southwest corner of Butte County. Comment
  CAS-BOT-BC456161  Najas guadalupensis Herbert L. Mason; Verne Grant 1946-8-15 13053 Butte #833 Irrigation Ditch, near caretaker's house, Greylodge Gam Refuge, Butte Sink Comment
  POM312540  Polygonum persicaria H. L. Mason, Verne Grant 1946-9-4 13111 Butte 833 Canal, W Gridley Road. Comment
  RSA435677  Limnanthes douglasii subsp. douglasii H. L. Mason 1941-4-6 12415 Butte Hills west of Cherokee. Comment
  SEINET11763780  Najas graminea H. L. Mason, Grant, V. 1946-1 13047 Butte near caretakers house, Greylodge Game Refuge Comment
  SEINET3890285  Najas graminea Herbert L. Mason, Verne E. Grant 1946-8-15 13047 Butte Near caretaker's house, Greylodge Game Refuge.; 0 Comment
  UC1111604  Eschscholzia lobbii Herbert L. Mason 1941-4-6 12417 Butte w Cherokee 304 Comment
  UCD137710  Nuphar polysepala Herbert L. Mason; Verne Grant 1946-8-14 13029 Butte Sacramento Outing Club. Butte Sink. Comment
  UCD137954  Echinodorus berteroi Herbert L. Mason; Verne Grant 1946-9-4 13107 Butte Butte Sink. 833 Canal, West Gridley Road. Comment
  UCD138355  Stuckenia pectinata Herbert L. Mason; Verne Grant 1946-8-8 13000 Butte Reclamation Ditch 833 on West Gridley Road near Pennington Road. Comment
  UCD140008  Bolboschoenus glaucus Herbert L. Mason; Verne Grant 1946-8-7 12991 Butte Gridley Road north of Butte Sink. Comment
  UCD141017  Cyperus difformis H. L. Mason 1945-9-19 12737 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  UCD141201  Cyperus niger Herbert L. Mason; Verne Grant 1946-9-27 13141 Butte three miles west of Biggs. Comment
  RSA13585  Cornus sessilis H. L. Mason 1935-3-14 10984 Calaveras South fork of the Mokelumne River, about three miles northeast of Glencoe. Comment
  RSA381124  Arctostaphylos myrtifolia George Mason, John M. Tucker, Roman Gankin, C. T. Mason 1956-10-27 194 Calaveras 1/2 mi. N of Mokolumne River behind high cliffs. Located right across the river from Comanche in Calaveras Co. Comment
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Jan 10 2014
  RSA381125  Arctostaphylos viscida subsp. viscida George Mason, John M. Tucker, Roman Gankin, C. T. Mason 1956-10-27 193 Calaveras 1/2 mi. N of Mokolumne River behind high cliffs. Located right across the river from Comanche in Calaveras Co. Comment
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Jan 10 2014
  UC1039502  Galium sparsiflorum Herbert L. Mason July 1930 5707 Calaveras near Hermit Springs; Sierra Nevada, Blue Creek Comment
  UC1076527  Lupinus albifrons Herbert L. Mason 1936-3-14 10992 Calaveras road to Murphys from Indian Creek (road from Indian Creek); road from Indian Creek to Murphys Comment
  UC1076529  Montia linearis Herbert L. Mason 1936-4-11 11059 Calaveras Creek s of Sheep Ranch (San Antonio Creek); San Antonio Creek Comment
  UC1076550  Kumlienia hystricula Herbert L. Mason 1936-3-14 10997 Calaveras s of Sheep Ranch (San Antonio Creek); San Antonio Creek Comment
  UC1081568  Erysimum capitatum Herbert L. Mason 1936-4-11 11060 Calaveras s Sheep Ranch; San Antonio Creek Comment
  UC1083123  Dendromecon rigida Herbert L. Mason 1936-4-10 11055 Calaveras ridge between Sheep Ranch and Murphys Comment
  UC1191692  Dodecatheon hendersonii Herbert L. Mason 1936-3-14 10971 Calaveras on road between San Andreas and Mokelumne Hill; between San Andreas and Mokelumne Hill Comment
  UC581539  Viola lobata subsp. lobata Herbert L. Mason 1926-5-31 3351 Calaveras Calaveras Big Trees Comment
  UC632798  Galium porrigens H. L. Mason 1936-4-11 11063 Calaveras s Sheep Ranch; San Antonio Creek Comment
  UC632838  Psilocarphus tenellus H. L. Mason 1936-4-12 11081 Calaveras Campo Seco, Sierra Nevada foothills Sierra Nevada Comment
  UC912552  Cirsium occidentale var. californicum Herbert L. Mason 1932-4-24 6975 Calaveras Mokulumne River Bridge Mokulumne River, Comanche Comment
  UCD52654  Arctostaphylos myrtifolia Geo. Mason; John M. Tucker and Roman Gankin 1956-10-27 194 Calaveras 1/2 mile north of Mokelumne River behind high cliffs; located right across the river from Comanche. Comment
  CAS-BOT-BC47552  Bolandra californica H. L. Mason 1930-7-1 5708 Calaveras Blue Creek, near Hermit Springs, Sierra Nevada Mountains. Comment
  POM312860  Dodecatheon hansenii H. L. Mason 1936-3-14 10971 Calaveras On road between San Andreas and Mokelumne Hill. Comment
  POM312861  Dodecatheon clevelandii subsp. patulum H. L. Mason 1936-3-14 10967 Calaveras 5 mi. west of Springville. Comment
  UC1083129  Geranium dissectum Herbert L. Mason 1936-4-10 11050 Calaveras on road from Murphy to Angel Camp Comment
  UC1191168  Sidalcea glaucescens Herbert L. Mason 1926-5-31 3355 Calaveras 1.2 mi sw Big Trees (on old road) Comment
  UC543747  Asarum lemmonii H. L. Mason July 1930 5705 Calaveras Near Hermit Springs, Blue Creek, a tributary of the North Rork of the Mokelumne River, Sierra Nevada Mountains Comment
  UC571144  Crassula aquatica H. L. Mason 1929-4-7 5196 Calaveras 3 mi. above Valley Spring Comment
  UC632873  Wyethia helenioides H. L. Mason 1936-4-10 11048 Calaveras road between Murphy's and Angel's Camp Comment
  UC635030  Asarum lemmonii H. L. Mason July 1930 5705 Calaveras Near Hermit Springs, Blue Creek, a tributary of the North Rork of the Mokelumne River, Sierra Nevada Mountains Comment
  UC907944  Linanthus filipes Herbert L. Mason 1926-6-1 3365 Calaveras near Angels Camp Comment
  CAS-BOT-BC112754  Eleocharis macrostachya Herbert L. Mason; Verne Grant 1946-8-6 12956 -B Colusa Pond on Colusa/Marysville Hwy, 4 mi S of Colusa, W side of Sacramento River. Comment
  CAS-BOT-BC190083  Crypsis schoenoides Herbert L. Mason 1945-7-11 12642 Colusa Near Butte Creek. Butte Lodge Outing Club, three miles above Colusa. Comment
  CAS-BOT-BC190165  Crypsis vaginiflora Herbert L. Mason 1945-7-11 12643 Colusa Butte Lodge Outing Club, three miles above Colusa. Near Butte Creek. Comment
  CAS-BOT-BC274325  Leersia oryzoides Herbert L. Mason 1945-9-19 12715 Colusa Below causway over Butte Sink spillway, east bank of Sacramento River, 1 mile above Colusa Comment
  CAS-BOT-BC83275  Myosurus minimus Herbert L. Mason 1953-4-5 14508 Colusa Three miles east of Maxwell. Comment
  CAS-BOT-BC83277  Myosurus minimus Herbert L. Mason 1953-4-5 14509 Colusa Three miles east of Maxwell. Comment
  POM312385  Glinus lotoides H. L. Mason 1945-7-11 12641 Colusa Near Butte creek; Butte Lodge Outing Club, 3 miles above Colusa. Comment
  POM313219  Crypsis schoenoides H. L. Mason 1945-7-11 12642 Colusa Alkali plains near Butte Creek; Butte Lodge Outing Club, three miles above Colusa Comment
  SEINET197559  Navarretia jepsonii Herbert L. Mason 1952-6-19 14307 Colusa Mendocino National Forest; Black Diamond Ridge. 610 Comment
  SEINET200142 Image available Eragrostis hypnoides Herbert L. Mason 1945-9-19 12717 Colusa Below causway over Butte Sink spillway east bank of Sacramento River 1 mile above Colusa Comment
  SEINET3237610  Najas guadalupensis subsp. guadalupensis Herbert L. Mason, Verne Grant 1946-9-5 13120 Colusa Road to Lake County, 1.6 miles west of Williams. Comment
  UC1027193  Parvisedum pentandrum Herbert L. Mason 1953-5-4 Colusa Little Stony Creek Road 0.25 mi above junction of Little Stony Creek and Trout Creek (Inner North Coast Ranges); , Little Stony Creek Road 609 Comment
  UC1100189  Crypsis vaginiflora Herbert L. Mason 1945-9-19 12718 Colusa below causeway over Butte Sink spillway (e bank of river, 1 mi above Colusa); Sacramento River, Butte Sink Comment
  UC1100313  Leersia oryzoides Herbert L. Mason 1945-9-19 12715 Colusa 1 mi above Colusa (below causeway over Butte Sink spillway, e bank of Sacramento River, Butte Sink); Sacramento River, Butte Sink Comment
  UC1100527  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-9-5 13117 Colusa 1.6 mi. w. Williams (rd. to Lake Co.) Comment
  UC1100534  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-7 12982 Colusa 8 mi. n. Colusa (Butte Sink); Butte Sink Comment
  UC1100547  Cyperus difformis Herbert L. Mason and Verne Grant 1946-8-7 12983 Colusa 8 mi. n. Colusa (Butte Sink); Butte Sink Comment
  UC1100663  Cyperus odoratus Herbert L. Mason 1945-9-19 12721 Colusa 1 mi. n. Colusa (e. bank of Sacramento R., below causeway over Butte Sink spillway); Sacramento R. Comment
  UC1178025  Fraxinus latifolia Herbert L. Mason 1947-3-29 13156 Colusa ca 3 mi ne Colusa (along Butte Creek); Butte Creek Comment
  UC1179040  Salix lasiolepis Herbert L. Mason 1947-3-29 13154 Colusa ca. 3 mi ne Colusa; Butte Sink, Butte Creek Comment
  UC1179041  Populus fremontii subsp. fremontii Herbert L. Mason 1947-3-29 13158 Colusa along Butte Creek ca 3 mi ne Colusa (Butte Sink); along Butte Creek, Butte Sink Comment
  UC1179059  Salix exigua var. hindsiana Herbert L. Mason 1947-3-29 13157 Colusa ca. 3 mi n.e. Colusa (along Butte Creek, Butte Sink) Comment
  UC1191131  Mimulus microphyllus Herbert L. Mason 1953-5-5 14519 Colusa 0.25 above junction of Little Stoney Creek and Trout Creek (at sharp bend in road); Little Stoney Creek drainage Comment
  UC1191335  Chenopodium strictum var. glaucophyllum Herbert L. Mason and Verne Grant 1946-8-7 12978 Colusa 8 mi n Colusa; Butte Sink Comment
  UC1191561  Ammannia coccinea Herbert L. Mason 1945-9-19 12716 Colusa 1 mi. above Colusa (below causeway over Butte Sink spillway, e. bank Sacramento R.); Butte Sink, Sacramento R. Comment
  UC1192040  Downingia insignis Herbert L. Mason 1953-4-5 14506 Colusa 3 mi e Maxwell Comment
  UC908621  Navarretia jepsonii Herbert L. Mason 1946-5-30 12814 Colusa about 1 mi e Lake County line (w Colusa County); Leesville Grade Comment
  UC935749  Sagittaria montevidensis subsp. calycina Herbert L. Mason and Verne Grant 1946-8-7 12981 Colusa Butte Sink; eight mi n of Colusa Comment
  UC971992  Mimulus layneae Herbert L. Mason 1952-6-19 14305 Colusa Black Diamond Ridge Mendocino National Forest 609 Comment
  UCD102948  Lythrum tribracteatum H. L. Mason 1945-7-11 12645 Colusa Butte Lodge Outing Club, 3 miles above Colusa, near Butte Creek. Comment
  UCD59814  Crypsis schoenoides H. L. Mason 1945-7-11 12642 Colusa Near Butte Creek; Butte Lodge Outing Club, 3 miles above Colusa. Comment
  UCD59983  Crypsis vaginiflora H. L. Mason 1945-7-11 12643 Colusa Butte Lodge Outing Club, 3 miles above Colusa, near Butte Creek. Comment
  UCD92752  Sorghum halepense H. L. Mason 1945-9-19 12723 Colusa 1 mile N of Colusa. Below causeway over Butte Sink spillway, E bank of Sacramento River. Comment
  CAS-BOT-BC114782  Cyperus acuminatus Herbert L. Mason; Verne Grant 1946-8-6 12969 Colusa Pond 2.7 miles N of Colusa between Sacramento River and Butte Creek. Comment
  CAS-BOT-BC153322  Diplacus layneae Herbert L. Mason 1952-6-19 14305 Colusa Black Diamond Ridge, Mendocino National Forest 609 Comment
  POM313034  Alisma triviale H. L. Mason, Verne Grant 1946-9-5 13119 Colusa Road to Lake Co, 1.6 miles W of Williams. Comment
  RSA0014830  Lythrum californicum H. L. Mason, Verne Grant 1946-8-7 12977 Colusa 8 miles north of Colusa; Butte Sink. Comment
  SACT000805  Crypsis aculeata Herbert Mason 1945-7-11 Colusa Alkali Plains three miles above Colusa Comment
  SACT000816  Heleochloa schoenoides Herbert Mason 1945-7-11 Colusa Alkali Plains three miles above Colusa. Comment
  SEINET8729331 Image available Linanthus bakeri Herbert L. Mason 1941-1 12404 Colusa Three miles south of Stonyford. Comment
  UCD126319  Cuscuta indecora var. indecora Herbert L. Mason; Verne Grant 1946-8-6 12974 Colusa 2.7 miles north of Colusa between Sacramento River and Butte Creek. Comment
  UCD97576  Bassia hyssopifolia Herbert L. Mason 1946-8-6 12958 Colusa On Colusa-Marysville Highway, four miles south of Colusa, west side of Sacramento River. Comment
  CAS-BOT-BC116451  Delphinium patens subsp. patens H. L. Mason; Robert Ornduff 1957-4-11 10620 Contra Costa Curry Canyon 3.4 miles s. of Recreation Ground Comment
  CAS-BOT-BC83289  Myosurus minimus Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83291  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 miles south of Byron. Comment
  JEPS40029  Layia glandulosa H. L. Mason 1932-3-20 Contra Costa Antioch Comment
  JEPS40167  Ptelea crenulata H. L. Mason 1928-3-31 Contra Costa Mt. Diablo Comment
  JEPS43337  Claytonia exigua subsp. exigua H. L. Mason 1931-4-5 Contra Costa se of Mt. Diablo (on road from Marsh Creek to Livermore); Upper Marsh Creek Comment
  JEPS43452  Parietaria hespera var. californica H. L. Mason 1929-4-18 Contra Costa Nortonville; above old Coal Mine Comment
  SBBG29885  Streptanthus hispidus H. L. Mason 1938-5-3 11751 Contra Costa trail between Juniper Camp and Deer Flat, Mt Diablo Comment
  UC1039525  Cephalanthus occidentalis var. californicus H. L. Mason 1929-9-21 5447 Contra Costa 1 mi from Borden Highway junction with road to Antioch Comment
  UC1055936  Pilularia americana Herbert L. Mason 1952-4-14 14261 Contra Costa 3.5 mi s Byron Comment
  UC1076228  Lupinus bicolor Herbert L. Mason 1931-4-5 5821 Contra Costa Antioch sandhills Comment
  UC1076313  Orobanche uniflora subsp. occidentalis Herbert L. Mason 1931-4-5 5828 Contra Costa Road between Marsh Creek and Livermore. Comment
  UC1076338  Dryopteris arguta Herbert L. Mason 1924-11-23 1166 Contra Costa via Cashion Creek Las Trampas Ridge Comment
  UC1076412  Symphoricarpos mollis Herbert L. Mason 1929-5-7 5264 Contra Costa Moraga Ridge Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  UC1178018  Lilium pardalinum Herbert L. Mason 1955-7-14 14633 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC1178020  Centaurium muehlenbergii Herbert L. Mason 1955-7-14 14637 Contra Costa 0.5 mi e Antioch Bridge Comment
  UC534852  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa sand hills along river e Antioch; San Joaquin River 12 Comment
  UC555354  Trifolium depauperatum var. truncatum H. L. Mason 1929-4-25 5208 Contra Costa Marsh Creek Rd Comment
  UC555420  Lotus wrangelianus H. L. Mason 1929-5-7 5263 Contra Costa Moraga Ridge Comment
  UC558458  Hesperolinon breweri Herbert L. Mason 1936-6-14 Contra Costa ridge running s Mount Diablo (head of Creek); Marsh Creek Comment
  UC565564  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1929-3-31 5157 Contra Costa Antioch, sand dikes along San Joaquin River San Joaquin River, Antioch Comment
  UC565627  Chaenactis glabriuscula var. glabriuscula H. L. Mason 1931-4-5 5817 Contra Costa Antioch sandhills Antioch Comment
  UC566668  Penstemon centranthifolius H. L. Mason 1929-3-31 5156 Contra Costa sand dike along San Joaquin River (Antioch); sand dike along San Joaquin River, Antioch Comment
  UC566855  Bowlesia incana H. L. Mason 1928-4-1 4272 Contra Costa Hills n of Mount Diablo (back of Pittsburg) Comment
  UC566857  Bowlesia incana H. L. Mason 1928-4-29 4419 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  UC570820  Ribes malvaceum Herbert L. Mason 1926-3-7 2708 Contra Costa Summit Mt. Diablo Comment
  UC570944  Saxifraga californica Herbert L. Mason 1926-3-7 2702 Contra Costa Mount Diablo Comment
  UC571094  Arbutus menziesii H. L. Mason 1924-11-23 1160 Contra Costa Cashion Canyon Comment
  UC573071  Plagiobothrys tenellus H. L. Mason 1932-3-20 6847 Contra Costa Antioch sand hills Comment
  UC573135  Pectocarya penicillata H. L. Mason 1932-3-20 6845 Contra Costa Antioch sand hills Comment
  UC592125  Nemophila heterophylla H. L. Mason 1929-3-29 5125 Contra Costa Mount Diablo 762 Comment
  UC592151  Streptanthus hispidus H. L. Mason 1929-3-29 5120 Contra Costa Mount Diablo 762 Comment
  UC592185  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1925-3-10 1292 Contra Costa Mount Diablo Comment
  UC604428  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa trail between Juniper Camp and Deer Flat; Mount Diablo Comment
  UC634568  Ceanothus cuneatus var. cuneatus H. L. Mason March, 1925 Contra Costa Mount Diablo Comment
  UC634752  Epilobium canum subsp. canum Herbert L. Mason 1923-11-12 852 Contra Costa lower slopes Mt. Diablo Comment
  UC634754  Epilobium canum subsp. canum H. L. Mason 1924-11-23 1169 Contra Costa Las Trampas Ridge Comment
  UC635097  Ranunculus canus var. canus H. L. Mason 1929-3-15 5055 Contra Costa on summit of hill east of Nortonville Comment
  UC635302  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkeley-Oakland Hills Comment
  UC635478  Stylomecon heterophylla H. L. Mason 1928-4-1 4271 Contra Costa hills n Mount Diablo (canyon back of Pittsburg); hills n of Mount Diablo Comment
  UC635484  Meconella oregana Herbert L. Mason 1927-4-16 3666 Contra Costa Wild Cat Canyon Berkeley Hills Comment
  UC635648  Githopsis specularioides H. L. Mason 1928-4-29 4429 Contra Costa Sycamore Canyon, s slopes of Mt. Diablo Mt. Diablo Comment
  UC672340  Phacelia douglasii Herbert L. Mason 1929-3-31 5161 Contra Costa dunes along river near Antioch; San Joaquin River Comment
  UC672349  Phacelia tanacetifolia Herbert L. Mason 1929-3-31 5140 Contra Costa hills n Mt. Diablo (Briones Rd) Comment
  UC672384  Phacelia imbricata Herbert L. Mason 1928-4-26 4388 Contra Costa slopes to n of Lake Temescal; Berkeley Hills Comment
  UC672416  Phacelia distans Herbert L. Mason 1928-4-29 4422 Contra Costa Sycamore Canyon Mount Diablo Comment
  UC672665  Mentzelia micrantha H. L. Mason 1928-4-29 4435 Contra Costa Mount Diablo, Sycamore Canyon Comment
  UC673302  Tropidocarpum gracile H. L. Mason 1932-3-20 6842 Contra Costa Antioch sand hills Comment
  UC673440  Castilleja exserta subsp. exserta H. L. Mason 1929-3-15 5059 Contra Costa about 5 mi from Brentwood (along Marsh Creek Road) Comment
  UC673456  Castilleja exserta subsp. exserta H. L. Mason 1928-3-4 4168 Contra Costa Shell Ridge Comment
  UC775175  Lotus denticulatus Herbert L. Mason 1945-5-31 Contra Costa nw of St. Mary's College; Cashion Canyon Comment
  UC908902  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1928-4-15 4357 Contra Costa top of Morago Ridge Morago Ridge Comment
  UC912309  Gutierrezia californica Herbert L. Mason 1929-9-21 5435 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC912326  Holocarpha virgata subsp. virgata Herbert L. Mason 1929-9-21 5431 Contra Costa 3 mi above Clayton (summit of grade, Marsh Creek Road) Comment
  UC912566  Hemizonia congesta subsp. luzulifolia Herbert L. Mason 7058 Contra Costa Laundry Farm Oakland Hills Comment
  UC912575  Layia glandulosa Herbert L. Mason 1929-3-31 5155 Contra Costa at Antioch (along Sacramento River); along Sacramento River Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  CAS-BOT-BC83290  Myosurus minimus Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  POM311124  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-17 1239 Contra Costa In a field along the Byron-Bethany road, 3.3 miles south of Byron. Comment
  POM312428  Myosurus sessilis H. L. Mason 1952-4-26 14270 Contra Costa Vernal Pool, 3.5 miles S of Byron Comment
  RSA0008584  Erysimum capitatum var. angustatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  RSA114063  Leptosiphon liniflorus H. L. Mason 1952-4-14 14265 Contra Costa 3.5 miles S of Byron Comment
  RSA114067  Lasthenia fremontii H. L. Mason 1952-4-14 14260 Contra Costa 3.5 miles S of Byron Comment
  SEINET10840136  Githopsis specularioides Mason 1928-4-29 Mason 4429 Contra Costa Sycamore Canyon, south slope of Mount Diablo Comment
  SEINET8729347 Image available Linanthus liniflorus Herbert L. Mason 1952-1 14265 Contra Costa 3.5 miles south of Eyron Comment
  UC555573  Trifolium willdenovii H. L. Mason 1929-3-29 5132 Contra Costa 2 mi above Clayton (Marsh Creek Rd) Comment
  UC555621  Trifolium albopurpureum H. L. Mason 1929-3-29 5130 Contra Costa 2 mi above Clyton Rd (Marsh Creek Rd) Comment
  UC570734  Pogogyne serpylloides Herbert L. Mason 1924-5-13 1014 Contra Costa Ridge south of Claremont Canyon, Berkeley Hills Comment
  UC635677  Utricularia gibba H. L. Mason 1929-9-21 5441 Contra Costa 1 mi. n. from junction of Borden Hwy. and rd. to Antioch Comment
  UC691769  Deinandra kelloggii H. L. Mason 1929-3-29 5137 Contra Costa 2 mi above Clayton (Marsh Creek Road) Comment
  UC912318  Laennecia coulteri Herbert L. Mason 1929-9-21 5443 Contra Costa one mile e of junction of Bordon Highway and road to Antioch; Antioch, Borden Highway Comment
  UCD137784  Pentagramma triangularis Herbert L. Mason 1924-11-23 1163 Contra Costa Las Trampas Ridge via Cashion. Comment
  UCD96287  Myosurus sessilis H. L. Mason 1952-4-14 14264 Contra Costa 3.5 miles south of Byron. Comment
  UCD97100  Ranunculus sceleratus H. L. Mason 1937-6-12 11547 Contra Costa 0.5 mile from the south end of Borden Highway and about 1.5 miles west of Byron. Comment
  CAS-BOT-BC420343  Chrysosplenium glechomifolium H. L. Mason 1929-5-10 5286 Del Norte just N of Crescent City Comment
  UC570863  Mitella caulescens H. L. Mason 1929-5-10 5285 b Del Norte 10 mi s Crescent City Comment
Read comments
Jan 2 2012
  UC570894  Chrysosplenium glechomifolium Herbert L. Mason 1929-5-10 5286 Del Norte 10 mi s Crescent City Comment
  CAS-BOT-BC221117  Salvia sonomensis H. L. Mason 1928-5-4 4497 El Dorado Dugars, 3 miles north of Latrobe Comment
  CAS-BOT-BC51737  Ceanothus lemmonii H. L. Mason 1928-5-4 4496 El Dorado three miles North of Latrobe Comment
  CAS-BOT-BC52028  Ceanothus prostratus H. L. Mason 1926-5-30 3315 El Dorado Ridge between Emarald Bay, Lake Tahoe, and Cascade Lake Comment
  JEPS5114  Valerianella locusta H. L. Mason 1932-4-28 El Dorado betw Latrobe and Shingle Sprs.; betw. Latrobe and Shingle Sprs. Comment
  SBBG26960  Comarum palustre H. L. Mason 1940-7-25 12331 El Dorado Grass lake, Luther Pass 2377 Comment
  SBBG64464  Allophyllum violaceum H. L. Mason 1941-7-16 12487 El Dorado Cold Crk, S of Lake Tahoe 2286 Comment
  SEINET191758 Image available Antennaria rosea H. L. Mason 1939-7-8 12162 El Dorado NE end of Fallen Leaf Lake 1951 Comment
  UC1076383  Pinus jeffreyi H. L. Mason 1929-10-4 5469 El Dorado 14 mi from Tahoe City (w side of Lake Tahoe above Emerald Bay); Lake Tahoe Comment
  UC1186132  Phlox douglasii subsp. rigida Herbert L. Mason 1926-5-30 3309 El Dorado hillslope back of Emerald Bay; Lake Tahoe Comment
  UC1191149  Linanthus parviflorus Herbert L. Mason 1928-5-4 4482 El Dorado 4 mi n Shingle Springs; Green Valley Comment
  UC555352  Trifolium depauperatum var. amplectens H. L. Mason 1928-5-4 4501 El Dorado Shingle Springs Comment
  UC555604  Trifolium barbigerum H. L. Mason 1928-5-4 4491 El Dorado near Latrobe (Swift Ranch) Comment
  UC555646  Rosa bridgesii Herbert L. Mason 1926-5-30 3336 El Dorado near Cook Station (w side of pass); Sierra Nevada Mountains, Kit Carson Pass Comment
  UC566657  Senecio aronicoides Herbert L. Mason 1932-4-25 7013 El Dorado Pilot Hill Comment
  UC570829  Ribes viscosissimum Herbert L. Mason 1925-5-30 3314 El Dorado hillslope behind Emerald Bay; Lake Tahoe Comment
  UC570932  Saxifraga nidifica var. nidifica Herbert L. Mason 1926-5-30 3306 El Dorado hills above Lake Tahoe; Emerald Bay, Lake Tahoe 1981 Comment
  UC592132  Nemophila maculata H. L. Mason 1928-5-4 4508 El Dorado 4 mi n Shingle Springs (Greene Valley); , n of Shingle Springs Comment
  UC634811  Ceanothus lemmonii H. L. Mason 1928-5-4 4496 El Dorado 3 mi n Latrobe (Dugars) Comment
  UC635145  Lythrum hyssopifolia H. L. Mason 1926-5-28 3257 El Dorado between Shingle Springs and Coloma (Sierra Nevada Foothills, Rose Springs (now known locally as Allan's)); Sierra Nevada Foothills, Rose Springs 396 Comment
  UC673422  Eleocharis acicularis Herbert L. Mason 1939-8-2 12198 El Dorado S end of Lake Tahoe near mouth of Upper Truckee River Sierra Nevada 1920 Comment
  UC908494  Linanthus montanus Herbert L. Mason 1932-4-25 7023 El Dorado Shingle Springs Comment
  UC909018  Allophyllum gilioides subsp. violaceum Herbert L. Mason 1941-7-16 12487 El Dorado Lake Tahoe, Cold Creek Comment
  UC912275  Layia fremontii Herbert L. Mason 1932-4-25 7022 El Dorado Shingle Springs Comment
  UC912386  Ceanothus parvifolius Herbert L. Mason 1928-5-4 4518 El Dorado Rose Springs, Eggars. Comment
  UC971851  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1948-5-13 1188 El Dorado 12 mi n Plymouth (along se side of State Hwy 49) 518 Comment
  UCR111260  Allophyllum gilioides subsp. violaceum H. L. Mason 1941-7-16 12487 El Dorado Sierra Nevada Mtns., Cold Creek, south of Lake Tahoe. 1912 Comment
  POM311139  Limnanthes versicolor Charles T. Mason Jr. 1948-5-13 1188 El Dorado 12 miles north of Plymouth along S.E. side of State Highway 49. 518 Comment
  POM311145  Limnanthes versicolor Charles T. Mason Jr. 1948-5-13 1189 El Dorado 12.7 miles north of Plymouth along S.E. side of State Highway 49. 518 Comment
  SEINET10478510  Alnus tenuifolia Herbert L. Mason 1939-7-18 Mason 12172 El Dorado North side of Luther Pass, one mile west of Grass Lake Meadow. 2347 Comment
  SEINET5341071  Cardamine oligosperma E. W. Mason 1976-3-13 s.n. El Dorado South of Auburn along the middle fork of the American River. 274 Comment
  UC555429  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-5-3 4481 El Dorado slopes to s Cosumnes River (opposite Clark Creek) Comment
  UC672249  Micropus californicus var. californicus H. L. Mason 1932-4-25 7008 El Dorado road from Cosumnes River Lotus Comment
  CAS-BOT-BC250708  Phalaris paradoxa Herbert L. Mason 1940-5-3 12252 Fresno San Joaquin Valley. Lyon and Hoag Ranch, nine miles southeast of South Dos Palos 30 Comment
  CAS-BOT-BC375969  Stylocline gnaphaloides H. L. Mason 1935-3-31 8255 Fresno Near Kett Station, east of Fresno Comment
  CAS-BOT-BC45289  Ancistrocarphus filagineus H. L. Mason 1935-3-27 8173 Fresno West of Fresno Comment
  CAS-BOT-BC83305  Myosurus minimus H. L. Mason 1953-4-2 14502 Fresno 5 miles south of Kerman. Comment
  UC1051487  Platystemon californicus Herbert L. Mason 1952-4-27 14276 Fresno Mercy Hot Springs Comment
  UC1100965  Juncus acuminatus Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith 1949-7-14 982 Fresno ca 1 mi se Sanger (n of Kings River, on road to Sanger Beach) Comment
  UC1101108  Juncus xiphioides Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith 1949-7-14 987 Fresno 2 mi w Clovis (on road to Cameo) Comment
  UC1191436  Myosurus minimus Herbert L. Mason 1953-4-2 14502 Fresno 5 mi s of Kerman Comment
  UC581153  Myosurus minimus H. L. Mason 1935-3-27 8171 Fresno w of Fresno Comment
  UC672343  Phacelia douglasii Herbert L. Mason 1932-4-3 6917 Fresno on Priest Valley Rd 3 mi w Coalinga Comment
Read comments
Apr 13 2016
  UC935778  Sagittaria sanfordii Herbert L. Mason and S. Galen Smith 1948-8-10 8318 Fresno at entrance of Firebaugh canal w side Mendota Pool; San Joaquin Valley, Mendota Pool Comment
  UCD141137  Cyperus rotundus Herbert L. Mason; S. Galen Smith 1948-8-18 8349 Fresno just west of Stratford. Comment
  CAS-BOT-BC114729  Cyperus difformis Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-17 8341 Fresno King's River E of Burrell. Comment
  CAS-BOT-BC209043  Digitaria sanguinalis Herbert L. Mason; S. Galen Smith 1948-7-28 8229 Fresno San Joaquin River at Firebaugh Comment
  POM264557  Monolopia stricta H. L. Mason 1940-3-24 12252 Fresno 4 miles south of Firebaugh Comment
  POM312612  Cuscuta salina H. L. Mason, Malcom A. Nobs 1948-10-2 706 Fresno Mendota Pool Comment
  CHSC2136  Bromus madritensis subsp. rubens P. Mason 1937-5-23 Glenn Canal bank Ord. Roadsides. Comment
  CHSC2153  Hordeum jubatum P. Mason 1937-5-23 Glenn On canal bank at Ord Bend. 39 Comment
  RSA151705  Hesperolinon drymarioides H. L. Mason 1952-6-19 14303 Glenn Black Diamond Ridge, Mendocino National Forest 823 Comment
  SD51683  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14304 Glenn Black Diamond Ridge, Mendocino National Forest. 822 Comment
  UC971994  Antirrhinum subcordatum Herbert L. Mason 1952-6-19 14308 Glenn Black Diamond Ridge; Mendocino National Forest 609 Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  UC634770  Garrya elliptica H. L. Mason 1932-7-21 7102 Humboldt Big Lagoon Comment
  UC634809  Ceanothus incanus H. L. Mason 1928-7-14 4901 Humboldt East Fork of Eel River Garberville Comment
  UC635137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  UC672428  Phacelia bolanderi Herbert L. Mason 1928-7-20 4910 Humboldt near Weitchpec; Klamath River Canyon Comment
  UC673408  Lilium occidentale Herbert L. Mason 1932-7-21 7106 Humboldt Trinidad Head Comment
  UC634952  Anemone deltoidea H. L. Mason 1929-5-9 5280 Humboldt Bull Creek Flat Comment
  UC971842  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-30 1282 Humboldt e side of road to Fortuna 4.9 mi from Bridgeville Comment
  SD47959  Caulanthus cooperi Herbert L. Mason 1940-3-22 12233 Inyo Titus Canyon, Grapevine Mountains, Death Valley National Monument. Comment
  SD47962  Phacelia crenulata var. crenulata Herbert L. Mason 1940-3-22 12241 Inyo Titus Canyon, Grapevine Mountains, Death Valley National Monument. Comment
  SEINET724586  Ephedra aspera Georgia Mason 1960-3-26 376 Inyo Death Valley; rocky campsite in Titus Valley Comment
  UC1093885  Ephedra trifurca Herbert L. Mason 1940-3-22 12246 Inyo Titus Canyon Death Valley National Monument, Grapevine Mountains (along stream course) Comment
  UC1093886  Phacelia crenulata var. ambigua Herbert L. Mason 1940-3-22 12241 Inyo Titus Canyon Death Valley National Monument, Grapevine Mountains (in washes) Comment
  UC1191633  Eriastrum densifolium subsp. austromontanum Herbert L. Mason 1948-9-3 13631 a Inyo Onion Valley Comment
  CAS-BOT-BC401927  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1934-3-30 8029 Inyo Summit of pass, Panamint Mountains Comment
  UC907885  Linanthus demissus Herbert L. Mason 1934-3-30 8028 Inyo summit of road to Stovepipe Wells Panamint Range Comment
  CAS-BOT-BC121950  Delphinium recurvatum Herbert L. Mason 1935-3-30 8242 Kern Four miles west of Bakersfield Comment
  CAS-BOT-BC158277  Prunus fasciculata var. fasciculata Herbert L. Mason 1935-5-1 10007 Kern Ridge south of Isabella Comment
  CAS-BOT-BC177949  Astragalus didymocarpus var. didymocarpus H. L. Mason 1932-4-1 6884 Kern Five miles south of Muroc, Mojave Desert Comment
  CAS-BOT-BC46975  Androsace elongata subsp. acuta H. L. Mason 1934-3-28 8002 Kern Kern River Canyon. Comment
  POM224203  Lembertia congdonii H. L. Mason 1935-4-30 9315 Kern 5 miles W of Bakersfield Comment
  POM224209  Prunus fasciculata H. L. Mason 1935-5-1 10007 Kern Ridge south of Isabella. Comment
  POM310924  Gilia sinuata H. L. Mason 1935-3-29 8203 Kern 2 miles west of Randsburg Comment
  SD47976  Asclepias californica Herbert L. Mason 1935-4-30 6263 Kern Hobo Hot Springs, Kern River Canyon. Comment
  SEINET199118  Mentzelia pectinata Herbert Mason 1952-4-6 14205 Kern South of Belridge. Comment
  UC1056302  Vulpia octoflora var. hirtella Herbert L. Mason 1935-4-30 6276 Kern Onyx Comment
  UC1083171  Descurainia pinnata H. L. Mason 1930-4-20 5582 Kern hills between Mohave and Lancaster Comment
  UC1179045  Lasthenia microglossa Herbert L. Mason 1935-5-2 8382 Kern 2 mi se Hobo Hot Springs Comment
  UC565488  Monolopia lanceolata H. L. Mason 1932-4-3 6907 Kern between Blackwells Corner and Lost Hills Comment
  UC566772  Coreopsis bigelovii Herbert L. Mason 1930-4-20 5576 Kern hills between Mojave Lancaster; Mojave Desert Comment
  UC573056  Amsinckia vernicosa var. vernicosa H. L. Mason 1930-4-20 5574 Kern hills between Mohave and Lancaster; Mohave Desert Comment
  UC573133  Pectocarya anisocarpa Herbert L. Mason 1932-4-1 6888 Kern 5 mi s Muroc; Mojave Desert Comment
  UC581159  Delphinium recurvatum H. L. Mason 1935-3-30 8242 Kern alkali plains four mi w Bakersfield Comment
  UC634691  Clarkia speciosa subsp. polyantha H. L. Mason 1929-6-2 5355 Kern 30 mi from Bakersfield; Tehachapi Mountains, Tejon Pass Comment
  UC635600  Eschscholzia minutiflora H. L. Mason 1932-4-1 6878 Kern 5 mi s Muroc (toward Roosevelt); Mojave Desert Comment
  UC672663  Mentzelia albicaulis H. L. Mason 1932-4-1 6881 Kern 5 m s Muroc; Mojave Desert Comment
  UC907834  Linanthus parryae Herbert L. Mason 1934-5-28 8016 Kern 4 mi E of Onyx; Kern River drainage Comment
  UC907851  Linanthus bicolor Herbert L. Mason 1934-3-28 8007 Kern 25 mi w Onyx (lower Kern River Canyon); Kern River Canyon Comment
  UC907880  Linanthus bicolor Herbert L. Mason 1935-4-30 6267 Kern Hobo Hot Springs Kern River Canyon Comment
  UC907889  Linanthus liniflorus Herbert L. Mason 1949-4-23 14001 Kern e of Bakersfield Comment
  UC908134  Gilia minor Herbert L. Mason 1945-3-30 8245 Kern Lost Hills w Bakersfield; Lost Hills w of Bakersfield Comment
  UC908167  Gilia tricolor subsp. diffusa Herbert L. Mason 1949-4-23 14004 Kern below Breckenridge Mountain Road (Kern River Canyon); , below Breckenridge Mountain Road Comment
  UC908423  Gilia interior Herbert L. Mason 1938-4-16 11728 Kern Isabella , Isabella (Kern River drainage) Comment
  UC908425  Gilia interior Herbert L. Mason 1934-3-28 8000 Kern Kern River Canyon Comment
  UC908427  Gilia sinuata Herbert L. Mason 1934-3-28 8011 Kern four mi e Onyx (Kern River drainage); , e of Onyx Comment
  UC908503  Gilia brecciarum subsp. neglecta Herbert L. Mason 1935-3-29 8202 Kern two mi w Randsburg; Mohave Desert, w of Randsburg; Searles Lake, Mohave Desert, San Bernardino Co. Comment
  UC908802  Linanthus bigelovii Herbert L. Mason 1935-4-30 8352 Kern Walker Pass Comment
  UC908804  Gilia brecciarum subsp. neglecta Herbert L. Mason 1935-4-30 8343 Kern Walker Pass Comment
  UC909038  Navarretia setiloba Herbert L. Mason 1935-5-2 8387 Kern e of Bakersfield Comment
  UC909073  Langloisia setosissima subsp. punctata Herbert L. Mason 1935-4-30 8296 Kern desert near Inyokern; Owens Valley Comment
  UCD49820  Eleocharis parishii Herbert L. Mason 1948-9-2 13629 Kern Walker Pass. Comment
  SEINET10904746  Canbya candida Mason 1935-4-30 Mason 10006 Kern Walker pass, southern sierra nevada. Comment
  SEINET12271308  Gilia latifolia H. L. Mason 1935-1 8204 Kern 2 mi W of Randsburg, Mojave Desert Comment
  SEINET8729348 Image available Linanthus liniflorus Herbert L. Mason 1935-1 8386 Kern Plains east of Bakersfield. Comment
  UC1106907  Parietaria pensylvanica Herbert L. Mason 1935-5-2 8381 Kern 2 mi se Hobo Hot Springs (s of Isabella) Comment
  UC909111  Linanthus aureus Herbert L. Mason 1949-4-23 14009 Kern w of Walker Pass; Yucca Groves Comment
  CAS-BOT-BC213559  Eragrostis hypnoides Herbert L. Mason; S. Galen Smith 1948-8-18 8348 A Kings Along a canal just west of Stratford Comment
  UC1100551  Cyperus squarrosus Herbert L. Mason and S. Galen Smith 1948-8-18 8353 Kings canal just w. Stratford; San Joaquin Valley Comment
  UC1100667  Cyperus erythrorhizos Herbert L. Mason and S. Galen Smith 1948-8-18 8350 Kings canal just w. Stratford; San Joaquin Valley Comment
  UC1191564  Ammannia coccinea Herbert L. Mason and S. Galen Smith 1948-8-18 8355 Kings canal just w. Stratford Comment
  UC1192358  Marsilea vestita subsp. vestita Herbert L. Mason and S. Galen Smith 1948-8-18 8346 Kings just w Stratford; San Joaquin Valley Comment
  UCD123916  Lindernia dubia Herbert L. Mason; S. Galen Smith 1948-8-18 8351 Kings canal just west of Stratford. Comment
  UCD96587  Myosurus minimus Herbert L. Mason 1953-4-2 14501 Kings about 3 miles east of Hanford. Comment
  CAS-BOT-BC125952  Salix scouleriana H. L. Mason 1926-1-1 2588 Lake Near summit of Elk Mountain Comment
  CAS-BOT-BC176040  Hesperolinon clevelandii H. L. Mason 1934-5-5 8112 Lake East side of Mount Konocti Comment
  CAS-BOT-BC200701  Rhus aromatica H. L. Mason 1926-3-21 2763 Lake Toll House Canyon between Middletown and Mount St. Helena Comment
  CAS-BOT-BC213577  Eragrostis hypnoides Herbert L. Mason 1945-8-24 12678 Lake East shore, Lower Lake Comment
  CAS-BOT-BC213578  Eragrostis hypnoides Herbert L. Mason 1945-8-24 12678 Lake East shore, Lower Lake Comment
  CAS-BOT-BC348487  Micropus californicus var. californicus H. L. Mason 1933-4-30 7229 Lake Near Aetna Springs Comment
  CAS-BOT-BC392038  Aquilegia eximia H. L. Mason 1933-9-24 s.n. Lake St. Helena Creek, east slope of Mount St. Helena Comment
  CAS-BOT-BC87112  Streptanthus glandulosus subsp. glandulosus H. L. Mason 1938-5-1 11747 Lake Bartlett Mountain. 4 miles from Lucerne. Comment
  HSC24623  Calyptridium quadripetalum H. L. Mason 1936-4-26 11097 Lake Barlett Springs, 16 mi. NE of Clear Lake 793 Comment
  JEPS21882  Utricularia gibba Herbert L. Mason 1945-8-24 12670 Lake Boggs Lake Comment
  JEPS22801  Epilobium nivium Herbert L. Mason 1936-9-20 11533 Lake sw slope Snow Mountain 1828 Comment
  NY336960  Navarretia pauciflora H. L. Mason 1945-5-12 12583 Lake Five miles N of Lower Lake Comment
  OBI14932  Streptanthus breweri Herbert L. Mason 1940-5-22 12308 a Lake 3 mi E of Middletown Comment
  POM256414  Nemophila pedunculata H. L. Mason 1938-5-1 11744 Lake Bartlett Springs. Comment
  POM313071  Eleocharis palustris H. L. Mason 1946-7-27 12947 Lake Clear Lake, 2-3 miles north of Lakeport. Comment
  SEINET200246  Navarretia pauciflora Herbert L. Mason 1953-6-8 14534 Lake Meadow west of Boggs Lake. Comment
  UC1039592  Phoradendron villosum H. L. Mason 1925-12-31 2573 Lake <Bartlet> Mt. Rd. Comment
  UC1076312  Orobanche uniflora subsp. occidentalis Herbert L. Mason 1929-4-29 5229 Lake Hopland Grade, 3 miles south of Hopland. Comment
  UC1076460  Grindelia hirsutula Herbert L. Mason 1925-12-31 2574 Lake Bartlett Mountain road Bartlett Mountain Comment
  UC1077079  Cycladenia humilis var. humilis Herbert L. Mason 1937-9-20 11538 Lake s.w. slopes of Snow Mt. 1828 Comment
  UC1081570  Boechera breweri subsp. breweri Herbert L. Mason 1936-4-26 11092 Lake e side Bartlett Mountain Comment
  UC1099981  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13282 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1099984  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13279 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1099985  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13278 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1099986  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13276 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1100681  Scirpus acutus var. occidentalis Herbert L. Mason 1945-8-24 12674 Lake e shore Lower Lake; e shore Lower Lake Comment
  UC1101531  Elatine heterandra Herbert L. Mason 1953-6-8 14547 Lake Snows Lake Comment
  UC1101568  Paspalum distichum Herbert L. Mason 1946-7-27 12948 Lake 2-3 mi n Lakeport (Clear Lake); Clear Lake Comment
  UC1111019  Elatine heterandra Herbert L. Mason 1937-5-27 11554 b Lake s side Mt. Konocti Comment
  UC1178919  Navarretia leucocephala subsp. bakeri Herbert L. Mason 1953-6-8 14533 Lake 1.5 mi w Lower Lake Comment
  UC1178978  Psilocarphus oregonus Herbert L. Mason 1946-5-31 12801 Lake 1.5 mi w Lower Lake Comment
  UC1179052  Lotus grandiflorus Herbert L. Mason 1937-5-27 11554 Lake s side Mt. Konocti Comment
  UC1191142  Collomia diversifolia Herbert L. Mason 1953-6-8 14522 Lake Black Oak Villa Butts Canyon Comment
  UC1191143  Collomia heterophylla Herbert L. Mason 1953-6-8 14521 Lake Black Oak Villa Butts Canyon Comment
  UC1191374  Mollugo verticillata Herbert L. Mason 1946-7-27 12953 Lake 2-3 mi n of Lakeport (Clear Lake); Clear Lake Comment
  UC1192041  Downingia cuspidata Herbert L. Mason 1945-6-29 12618 Lake Boggs Lake at base of Mount Hanna Mount Hanna, Boggs Lake Comment
  UC566816  Lomatium utriculatum H. L. Mason 1926-3-21 2761 Lake Middletown to Mt. St. Helena Comment
  UC570785  Chamaesyce serpyllifolia H. L. Mason August, 1930 Lake rd to Bartlett Mtn Comment
  UC570989  Rhamnus ilicifolia Herbert L. Mason 1926-1-2 2602 Lake between Lower Lake and Middletown Comment
  UC571112  Hesperolinon bicarpellatum H. L. Mason June, 1930 5689 Lake four mi e Middletown Comment
  UC571192  Arctostaphylos canescens subsp. canescens H. L. Mason 1925-12-31 2578 Lake via Clover Creek School Rd Upper Lake Comment
  UC592163  Eryngium aristulatum var. aristulatum H. L. Mason August, 1930 5720 Lake Clear Lake Comment
  UC592167  Eryngium aristulatum var. aristulatum H. L. Mason 1930-6-1 5686 Lake 4 mi. e. Middletown Comment
  UC604421  Psilocarphus brevissimus var. brevissimus H. L. Mason 1934-5-5 8129 Lake between Kelseyville Lower Lake Comment
  UC634638  Garrya flavescens H. L. Mason 1925-12-30 2563 Lake summit of road between Hopland and Lakeport; Mayacama Range Comment
  UC634700  Clarkia purpurea subsp. quadrivulnera H. L. Mason June 1930 5692 Lake 4 mi e Middletown Comment
  UC634831  Garrya flavescens H. L. Mason 1926-1-1 2601 Lake near lower Blue Lake Comment
  UC635039  Mollugo verticillata H. L. Mason August 1930 5711 Lake shore of Clear Lake Comment
  UC635272  Lythrum hyssopifolia H. L. Mason June, 1930 5691 Lake 4 mi e of Middletown Comment
  UC672155  Calochortus amabilis Herbert L. Mason Jun 1930 5681 Lake St. Helena Creek Mount St. Helena Comment
  UC672239  Micropus californicus var. californicus Herbert L. Mason 1933-4-30 7229 Lake near Aetna Springs Comment
  UC672243  Pentachaeta exilis Herbert L. Mason 1933-4-30 7220 Lake near Aetna Springs Comment
  UC672278  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1933-4-30 7226 Lake near Aetna Springs Comment
  UC672308  Baccharis pilularis Herbert L. Mason 1925-12-31 2571 Lake Bartlet Mountain Road Comment
  UC672519  Mimulus tricolor H. L. Mason June, 1930 5684 Lake four mi e Middletown Comment
  UC672590  Hypericum concinnum H. L. Mason June 1930 5676 Lake slopes of Mt. St. Helena (St. Helena Creek); , St. Helena Creek Comment
  UC907806  Navarretia atractyloides Herbert L. Mason 1945-6-28 12601 Lake se of Borax Lake Comment
  UC908127  Navarretia heterandra Herbert L. Mason 1946-5-30 12791 Lake near Middletown; Locomono Creek Comment
  UC908165  Navarretia intertexta Herbert L. Mason 1946-5-30 12798 Lake 3 mi e Middletown Comment
  UC909052  Linanthus bolanderi Herbert L. Mason 1929-4-29 5234 Lake 2.9 mi w Lakeport (e base of the road from Hopland to Lakeport) Comment
  UC912277  Layia septentrionalis Herbert L. Mason 1929-4-29 5235 Lake 2.9 mi w Lakeport Comment
Read comments
Jan 3 2018
  UC912373  Downingia cuspidata Herbert L. Mason 1934-5-5 8120 Lake sw of Mount Konocti Comment
  UC912480  Polygonum parryi H. L. Mason 1934-5-5 8119 Lake plain sw Mount Konocti Comment
  UC912598  Delphinium variegatum H. L. Mason 1929-4-29 5257 Lake meadows between Middletown and Lower Lake Comment
  UC912602  Chorizanthe polygonoides var. polygonoides Herbert L. Mason 1934-5-5 8130 Lake between Kelseyville and Lower Lake; between Kelseyville and Lower Lake Comment
  UC921146  Cyperus squarrosus Herbert L. Mason August, 1930 5726 Lake Clear Lake Comment
  UC935722  Sagittaria cuneata Herbert L. Mason 1945-8-24 12685 Lake East shore Lower Lake; e shore Lower Lake Comment
  UC935740  Sagittaria cuneata Herbert L. Mason 1945-6-29 12623 Lake Boggs Lake at base Mount Hanna; Boggs Lake at base of Mount Hanna Comment
  UC936199  Crypsis vaginiflora Herbert L. Mason 1930-8-1 5724 Lake Lakeshore Clear Lake Comment
  UC936202  Panicum capillare H. L. Mason August, 1930 5725 Lake Lakeshore Clear Lake; , Clear Lake Comment
Read comments
Feb 24 2009
  UC964796  Linanthus bolanderi Herbert L. Mason 1938-5-1 11748 Lake about 4 mi from Lucerne; Bartlett Mountain 1158 Comment
  UC972231  Linanthus latisectus Herbert L. Mason 1936-4-26 11095 Lake e side Bartlett Mountain Comment
  UCD107093  Ludwigia palustris H. L. Mason 1945-6-29 12627 Lake Boggs Lake, at base of Mount Hanna. Comment
  UCD121676  Utricularia gibba Herbert L. Mason 1945-8-24 12670 Lake Boggs Lake. Comment
  UCD138252  Potamogeton nodosus Herbert L. Mason 1945-8-24 12683 Lake East shore, Lower Lake. Comment
  UCD45204  Quercus berberidifolia Herbert L. Mason 1925-12-31 2572 Lake Bartlett Mt. Road. Lake Co. Comment
  UCD48478  Navarretia intertexta Herbert L. Mason 1946-5-30 12798 Lake 3 miles E of Middletown. Comment
  UCD48703  Navarretia tagetina Herbert L. Mason 1946-5-30 12789 Lake Locomono Creek near Middletown, Lake County, California. Comment
  UCD55001  Downingia bicornuta H. L. Mason 1945-6-29 12617 Lake Boggs Lake, at base of Mount Hanna. Comment
  UCD97212  Amaranthus californicus H. L. Mason 1945-8-24 12676 Lake East shore, Lower Lake. Comment
  CAS-BOT-BC302582  Gnaphalium palustre H. L. Mason 1934-5-5 8125 Lake Near Hildebrand Ranch, southeast of Kelseyville Comment
  CAS-BOT-BC413521  Persicaria amphibia Herbert L. Mason 1945-6-29 12622 Lake Boggs Lake at base of Mount Hanna [Hannah] Comment
  CAS-BOT-BC452149  Potamogeton diversifolius Herbert L. Mason 1945-6-29 12624 Lake Boggs Lake at base of Mount Hanna [Hannah] Comment
  RSA0006023  Gratiola heterosepala H. L. Mason, R. C. Bacigalupi 1953-6-8 14544 Lake Southwest margin of Boggs Lake, (west base of Mount Hanna). Comment
  SEINET10780562 Image available Eriastrum brandegeeae Herbert L. Mason 1945-6-28 Mason 12604 Lake Obsidian Ridge, southeast of Borax Lake Comment
  SEINET10890119 Image available Navarretia pauciflora Herbert L. Mason 1945-5-12 Mason 12583 Lake Comment
  SEINET3825844  Potamogeton natans Herbert L. Mason, Malcolm A. Nobs 1950-8-16 171 Lake Intermediate between and growing with P. natans and P. illinoensis. Resort area at southeast end of Clear Lake Comment
  UC1076501  Astragalus breweri Herbert L. Mason 1929-4-29 5251 Lake waste slopes about Lakeport (North Coast Ranges); , Lakeport Comment
  UC1093987  Isoetes bolanderi Herbert L. Mason 1936-9-20 11536 Lake base of trail to Snow Mt from sheep corral Snow Mt Comment
  UC1100669  Cyperus erythrorhizos Herbert L. Mason and S. Galen Smith 1949-9-8 1850 Lake shore on s.e. side Clear Lake Comment
  UC1178869  Wyethia angustifolia Herbert L. Mason 1937-5-27 11554 a Lake nine mi s Kelseyville Comment
  UC1192267  Bergia texana Herbert L. Mason 1945-8-24 12681 Lake East Shore, Lower Lake Comment
  UC673626  Ancistrocarphus filagineus H. L. Mason 1933-4-30 7235 Lake on rd to Middletown; Pope Valley Comment
  UC908080  Navarretia pubescens Herbert L. Mason 1945-6-28 12592 Lake 1 mi e Middletown; Lokomono Creek Bridge Comment
  UCD96982  Cypselea humifusa Herbert L. Mason 1945-8-24 12684 Lake East shore, Lower Lake. Comment
  JEPS22874  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason Jul 29 1955-Jul 31 1955 14639 Lassen Pine Creek Flat Comment
  UC1051438  Sagittaria cuneata Herbert L. Mason 1955-8-13 14647 a Lassen Willow Creek Valley Comment
  UC1100216  Beckmannia syzigachne Herbert L. Mason 1947-7-9 13299 Lassen 5 mi e Bieber Comment
  UC1100958  Juncus balticus Herbert L. Mason and Verne Grant 1947-7-9 13297 Lassen 5 mi e Bieber Comment
  UC1192317  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith 1949-5-29 757 Lassen marsh on Great Northern Railroad Nubeiber (Hwy 299) Comment
  UC1051571  Helianthus nuttallii subsp. nuttallii Herbert L. Mason 1947-8-11 13492 Lassen w margin Lower Lake (Highway 81, n boundary of Lassen County with Modoc County) Comment
  UCD141340  Juncus balticus subsp. ater Herbert L. Mason; Verne Grant 1947-7-9 13297 Lassen 5 miles east of Bieber. Comment
  CAS-BOT-BC158663  Purshia tridentata var. glandulosa H. L. Mason; F. W. Peirson 1926-4-27 6668 Los Angeles Rock Creek, San Gabriel Mts. 1295 Comment
  CAS-BOT-BC182301  Astragalus didymocarpus var. didymocarpus H. L. Mason 1926-4-26 2963 Los Angeles Four miles west of Saugus Comment
  CAS-BOT-BC43576  Dithyrea californica H. L. Mason 1932-4-1 6858 Los Angeles Mohave Desert. One mile east of Lancaster. Comment
  JEPS19480  Orobanche cooperi Herbert L. Mason 1926-4-26 3021 Los Angeles Mohave Desert, Little Rock Creek Little Rock Creek; Mohave Desert, Little Rock Creek Comment
  SD45375  Linanthus concinnus Herbert L. Mason 1934-3-30 8035 Los Angeles Rock creek; south of Valyermo, north side of San Gabriel Mountains. Comment
  UC1076317  Grayia spinosa Herbert L. Mason 1926-4-26 2992 Los Angeles 1 mi. e. Palmdale Comment
  UC1083342  Muilla maritima Herbert L. Mason 1927-6-11 3740 Los Angeles Mount Wilson San Gabriel Mountains 1524 Comment
  UC1191106  Pseudotsuga macrocarpa Herbert L. Mason 1927-6-11 3738 Los Angeles Mt. Wilson, San Gabriel Mts, Mt. Wilson 1524 Comment
  UC565537  Glyptopleura setulosa Herbert L. Mason 1924-4-26 3015 Los Angeles Little Rock Creek Mohave Desert, Little Rock Creek Comment
  UC565539  Malacothrix clevelandii H. L. Mason 1927-6-11 3748 Los Angeles Mount Wilson San Gabriel Mountains, Mount Wilson 1219 Comment
  UC565547  Malacothrix glabrata H. L. Mason 1926-4-26 3006 Los Angeles Little Rock Creek Mohave Desert Comment
  UC566746  Eriophyllum pringlei H. L. Mason 1926-4-26 2997 Los Angeles 1 mi e Palmdale Comment
  UC566774  Coreopsis californica var. californica Herbert L. Mason 1932-4-1 6872 Los Angeles 1 mi e Lancaster; Mojave Desert Comment
  UC634848  Eremalche exilis H. L. Mason 1932-4-1 6870 Los Angeles 1 mi. e. Lancaster Comment
  UC634911  Salvia carduacea H. L. Mason 1926-4-26 3011 Los Angeles Little Rock; Mojave Desert Comment
  UC635197  Rhus integrifolia H. L. Mason 1926-4-26 2943 Los Angeles Pacoima Wash, foothills of San Gabriel Mountains Comment
  UC635246  Allium fimbriatum var. fimbriatum H. L. Mason 1926-4-26 3022 Los Angeles near Rock Creek (n side of San Gabriel Mountains); San Gabriel Mountains Comment
  UC635316  Astragalus coccineus H. L. Mason 1926-4-27 3044 Los Angeles Rock Creek , Rock Creek (Mojave Desert slope of San Gabriel Mountains) Comment
  UC635440  Meconella denticulata Herbert L. Mason 1927-6-14 3754 Los Angeles San Antonio Canyon, San Gabriel Mtns 914 Comment
  UC635807  Eriogonum pusillum Herbert L. Mason 1926-4-26 3012 Los Angeles near Rock Creek; Mohave Desert Comment
  UC640591  Silene laciniata subsp. major Herbert L. Mason 1927-6-14 3756 Los Angeles San Antonio Canyon San Gabriel Mts., San Antonio Canyon 914 Comment
  UC672315  Ericameria linearifolia H. L. Mason 1930-4-20 5596 Los Angeles hills in the Rock Creek region Mohave Desert, Rock Creek Comment
  UC672356  Phacelia fremontii Herbert L. Mason 1926-4-26 2984 Los Angeles along road from Vincent to Palmdale Comment
  UC672556  Antirrhinum coulterianum H. L. Mason 1927-6-11 3746 Los Angeles Mount Wilson; San Gabriel Mountains Comment
  UC672595  Salazaria mexicana H. L. Mason 1926-4-26 2981 Los Angeles Vincent to Palmdale; Vincent to Palmdale Comment
  UC672660  Mentzelia ravenii H. L. Mason 1926-4-26 2999 Los Angeles Little Rock Comment
  UC672669  Mentzelia jonesii H. L. Mason 1932-4-1 6871 Los Angeles 1 m e Lancaster; Mohave Desert Comment
  UC673528  Lepidium fremontii H. L. Mason 1926-4-27 3056 Los Angeles 30 mi w Victorville; Mohave Desert Comment
  UC908602  Linanthus parviflorus Herbert L. Mason 1930-4-20 5597 Los Angeles Rock Creek region Mohave Desert Comment
  UC908628  Linanthus breviculus Herbert L. Mason 1934-3-30 8036 Los Angeles Rock Creek, Mohave Desert slope of San Gabriel Mountains San Gabriel Mountains Comment
  UC912668  Delphinium parryi subsp. purpureum Herbert L. Mason 1926-4-26 2966 Los Angeles summit of 1st grade Mint Canyon Road Comment
  UC936197  Poa secunda subsp. juncifolia H. L. Mason 1932-4-1 6862 Los Angeles 1 mi e Lancaster; Mojave Desert Comment
  UC963808  Linanthus concinnus Herbert L. Mason 1934-3-30 8035 Los Angeles s of Valyermo (Rock Creek, n side of San Gabriel Mountains); San Gabriel Mountains, Rock Creek Comment
  UCD103381  Camissonia campestris Steve Mason 1993-5-2 F Los Angeles Mojave Desert, just N of Saddleback Butte State Park on E. 190th St. (N5), 0.1 mile N of Ave. J., 50-100' off East side of road. 853 Comment
  UCD124192  Penstemon grinnellii var. grinnellii Steve Mason; Helen M. Mason 1993-5-5 29 Los Angeles on Angeles Crest Hwy., 3.5 miles above Big Tujunga Canyon Road, above large parking area on southwest side of road, below water tank. 1798 Comment
  UCD142537  Euphorbia albomarginata Steve Mason 1993-5-2 30 Los Angeles Mojave Desert, off CA Hwy. 138, 1.0 mi. past W 110th St. on dirt road 0.4 mi. from jct. 762 Comment
  SEINET12267915  Jacaranda mimosifolia R. E. Mason 1944-1 s.n. Los Angeles near Los Angeles Comment
  SEINET233347  Arabis pulchra Steve Mason, Helen M. Mason 1993-5-9 36 Los Angeles Mt. Pinos area Lockwood Valley Rd 3.7 mi from Mt. Pios Hwy on the right side of the road 1646 Comment
  UC1083343  Muilla maritima Herbert L. Mason 1926-4-26 2946 Los Angeles Pocoima Wash foothills of San Gabriel Mountains Comment
  UC565545  Rafinesquia neomexicana Herbert L. Mason 1926-4-27 3062 Los Angeles 30 mi w Victorville Comment
  UC592165  Lomatium mohavense H. L. Mason 1926-4-26 2979 Los Angeles summit Mint Canyon Comment
  UC908577  Linanthus aureus Herbert L. Mason Los Angeles 30 mi w Victorville; Mohave Desert Comment
  UC908646  Linanthus aureus subsp. aureus Herbert L. Mason 1926-4-26 2945 Los Angeles Pacoima Wash, foothills of San Gabriel Mountains San Gabriel Mountains Comment
  CAS-BOT-BC295571  Agnorhiza elata H. L. Mason 1938-7-16 11952 Madera Four miles south of Miami Ranger Station 1219 Comment
  UC1076522  Allium obtusum var. conspicuum Herbert L. Mason 1941-7-7 12501 Madera Morraine Meadow near Givens Creek (Yosemite Nat'l Park); Sierra Nevada, , Morraine Meadow 2804 Comment
  UC1076523  Platanthera sparsiflora Herbert L. Mason 1941-7-7 12514 Madera just s Givens Lake Trail junction; Sierra Nevada, Yosemite National Park 2865 Comment
  UC1178885  Eriophorum crinigerum Herbert L. Mason 1941-7-7 12509 Madera sphagnum bog just s. of Givens Lake trail junction Givens Lake; Sierra Nevada, Yosemite Nat'l Park 2865 Comment
  UC555485  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-3-24 5109 Madera 18 mi e Madera (junction of Yosemite Rd) Comment
  UC570758  Callitriche heterophylla var. bolanderi H. L. Mason 1929-3-24 5111 Madera 18 mi e Madera (junction of Yosemite Road) Comment
  UC629726  Eriastrum pluriflorum H. L. Mason 1938-7-16 11956 Madera 2 mi s South Fork; Sierra Nevada 1127 Comment
  UC635443  Platystemon californicus H. L. Mason 1929-3-24 5110 Madera between Bates Station and O'Neal's at junction of Yosemite road 18 mi e Madera Comment
  UC672324  Hydrophyllum occidentale H. L. Mason 1936-5-16 11133 Madera Chowchilla Mountain Comment
  UC907827  Linanthus ciliatus Herbert L. Mason 1941-7-7 12497 Madera Buck Camp Comment
  UC912570  Achyrachaena mollis Herbert L. Mason 1929-3-24 5105 Madera 18 mi e at jct with Yosemite Road Madera Comment
  UC963782  Gilia tricolor subsp. tricolor Herbert L. Mason 1929-3-23 5097 Madera hills e Madera; e of Madera Comment
  CAS-BOT-BC56252  Gaultheria humifusa Herbert L. Mason 1941-7-14 12520 Madera Ottoway Lake 2987 Comment
  UC672397  Phacelia cicutaria var. cicutaria Herbert L. Mason 1929-3-24 5100 Madera 18 mi e Madera (at junction of Yosemite Rd) Comment
  CAS-BOT-BC121644  Delphinium patens subsp. patens H. L. Mason 1917-4-28 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC130031  Fritillaria affinis H. L. Mason 1917-4-28 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC147257  Rubus parviflorus H. L. Mason 1917-4-28 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC176076  Hesperolinon congestum H. L. Mason 1928-4-28 4409 Marin Tiburon Peninsula Comment
  CAS-BOT-BC26181  Monardella sinuata subsp. nigrescens Herbert Mason; Annetta Carter 1938-5-18 1417 Marin Point Reyes Peninsula, 12.5 miles from Inverness. Comment
  CAS-BOT-BC422663  Meconella californica H. L. Mason 1931-3-13 5810 Marin Lagunitas Creek Comment
  CAS-BOT-BC50930  Ceanothus foliosus var. foliosus H. L. Mason 1924-10-12 1114 Marin Southeast slope of Mt. Tamalpais along railroad Comment
  POM269513  Ranunculus orthorhynchus var. bloomeri H. L. Mason 1928-3-24 4266 Marin Millerton, Tomales Bay, Marin County Comment
  SEINET5763377 Image available Nasturtium officinale Herbert L. Mason 1941-1 12424 Marin Tomales Point, 1 mi W of Indian Beach 91 Comment
  UC1076093  Lithocarpus densiflorus Herbert L. Mason 1926-2-28 2673 Marin Mt. Tamalpais Comment
  UC1076308  Orobanche fasciculata Herbert L. Mason 1925-4-12 1321 Marin Mt. Tamalpais. Comment
  UC1093983  Adiantum aleuticum Herbert L. Mason 1926-2-22 2663 Marin Inverness Comment
  UC1099794  Sparganium erectum subsp. stoloniferum Herbert L. Mason 1946-7-24 12925 Marin 2nd lake s Bear Valley (on road to Lake Ranch) Comment
  UC1100498  Carex obnupta Herbert L. Mason 1932-7-24 7121 Marin Inverness Ridge Comment
  UC1100797  Scirpus californicus Herbert L. Mason 1946-7-24 12934 Marin Third Lake (at Double Point) s of Bear Valley on road to Lake Ranch; Third Lake (at Double Point) Comment
  UC1101032  Juncus hesperius Herbert L. Mason 1946-7-24 12931 Marin second lake s Bear Valley (on road to Lake Ranch) Comment
  UC1101506  Myriophyllum sibiricum Herbert L. Mason 1946-7-24 12941 Marin Lake Ranch, near Double Point. Comment
  UC1178814  Cryptantha flaccida Herbert L. Mason 1940-5-20 12292 Marin back of Tiburon Comment
  UC1191135  Luzula macrantha Herbert L. Mason 1925-2-1 1216 Marin Hills above Mill Valley Comment
  UC1191513  Ribes menziesii Herbert L. Mason 1946-7-24 12924 Marin second lake s Bear Valley (on road to Lake Ranch) Comment
  UC555291  Heteromeles arbutifolia H. L. Mason 1925-10-4 2239 Marin n side Mt. Tamalpais Comment
  UC555366  Trifolium variegatum var. melananthum H. L. Mason 1928-4-28 4393 Marin Tiburon Peninsula Comment
  UC555370  Trifolium depauperatum var. truncatum H. L. Mason 1928-4-28 4439 Marin Tiburon Peninsula Comment
  UC555377  Trifolium variegatum var. melananthum H. L. Mason 1928-4-13 4311 Marin n San Rafael Comment
  UC555483  Trifolium albopurpureum var. dichotomum H. L. Mason 1928-4-28 4398 Marin Tiburon Peninsula Comment
  UC555579  Trifolium willdenovii H. L. Mason 1928-4-28 4405 Marin Tiburon Peninsula Comment
  UC555591  Trifolium gracilentum H. L. Mason 1928-4-28 4397 Marin Tiburon Peninsula Comment
  UC566868  Lomatium dasycarpum subsp. dasycarpum H. L. Mason 1928-4-28 4401 Marin Tiburon Peninsula Comment
  UC566921  Gentiana affinis var. ovata H. L. Mason 1923-10-1 776 Marin s slopes Mount Tamalpais Comment
  UC570742  Lepechinia calycina Herbert L. Mason 1925-4-12 1333 Marin Mt. Tamalpais, pipeline trail Comment
  UC570906  Whipplea modesta Herbert L. Mason 1925-4-12 1338 Marin Mt. Tamalpais; Pipe Line trail Comment
  UC570963  Ribes sanguineum var. glutinosum Herbert L. Mason 1926-2-21 2645 Marin Inverness Comment
  UC570980  Ribes menziesii Herbert L. Mason 1926-2-21 2661 Marin Point Reyes Comment
  UC571065  Gaultheria shallon H. L. Mason October 1923 777 Marin Mount Tamalpais Comment
  UC571089  Arctostaphylos canescens subsp. canescens H. L. Mason 1926-2-28 2670 Marin West Peak Mt. Tamalpais Comment
  UC571123  Oxalis oregana Herbert L. Mason 1925-4-12 1340 Marin Mt. Tamalpais Comment
  UC571180  Iris douglasiana H. L. Mason 1926-2-28 2674 Marin border of stream near West Point; Mt. Tamalpais Comment
  UC581510  Viola adunca H. L. Mason 1926-2-21 2654 Marin near summit of Inverness Ridge (on Point Reyes Road) Comment
  UC592134  Nemophila menziesii var. atomaria H. L. Mason 1928-3-24 4268 Marin Millerton , Millerton (Tomales Bay) Comment
  UC634572  Ceanothus gloriosus var. gloriosus H. L. Mason 1926-2-21 2662 Marin near lighthouse on sea cliffs, Point Reyes Comment
  UC634588  Ceanothus velutinus Herbert L. Mason 1926-4-12 3639 Marin Baltimore Park Trail--Corte Madera Ridge , Corte Madera Ridge (Mt. Tamalpais) Comment
  UC634877  Mentha canadensis H. L. Mason 1925-9-17 2226 Marin in stream bed at e end Lake Lagunitas; e end of Lake Lagunitas Comment
  UC634941  Claytonia exigua subsp. exigua H. L. Mason 1926-3-6 2689 Marin n side Mount Tamalpais Comment
  UC635143  Stachys ajugoides var. rigida H. L. Mason 1924-11-16 1144 Marin Willow Camp Mount Tamalpais Comment
  UC635528  Ceanothus jepsonii var. jepsonii Herbert L. Mason 1926-2-28 2675 Marin West Peak, Mount Tamalpais Comment
  UC665663  Rorippa nasturtium-aquaticum Herbert L. Mason 1941-5-24 12424 Marin Tomales Point one mi w Indian Beach; Tomales Point, w of Indian Beach 91 Comment
  UC672237  Micropus californicus var. californicus Herbert L. Mason 1928-4-13 4317 Marin hill n San Rafael Comment
  UC672297  Eurybia radulina H. L. Mason 1925-9-17 2228 Marin near Phoenix Lake Comment
  UC672549  Gratiola ebracteata Herbert L. Mason 1925-9-17 2230 Marin Ross Valley to Lake Lagunitas; Ross Valley to Lake Lagunitas Comment
  UC673437  Castilleja densiflora subsp. densiflora H. L. Mason 1928-4-28 4394 Marin Tiburon Peninsula Comment
  UC909079  Linanthus parviflorus Herbert L. Mason 1932-7-24 7124 Marin Point Reyes Comment
  UC912298  Abronia Herbert L. Mason 1924-11-16 1151 Marin Stinson Beach, Willow camp Comment
  UC936137  Lemna gibba Herbert L. Mason 1946-7-24 12916 Marin 2.8 mi n of Lake Ranch (e side of Drakes Bay); Drakes Bay 60 Comment
  UC971876  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-3-14 1198 Marin Petaluma-Point Reyes road 0.5 mi se junction with Fairfax-Nicasio-Point Reyes road Comment
  UCD47529  Quercus wislizeni H. L. Mason 1924-10-12 1111 Marin South slope of Mt. Tamalpais, Marin CO. Comment
  CAS-BOT-BC130026  Fritillaria affinis H. L. Mason 1917-4-4 78 Marin Tocaloma Comment
  CAS-BOT-BC236924  Chloropyron maritimum subsp. palustre H. L. Mason 1930-6-1 5670 Marin Dillons Beach Comment
  CAS-BOT-BC267285  Campanula californica H. L. Mason 1932-7-24 7116 Marin Marsh on Inverness Ridge Comment
  CAS-BOT-BC363334  Senecio aronicoides H. L. Mason 1917-1-1 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC365876  Soliva sessilis H. L. Mason 1928-4-13 4315 Marin Hills north of San Rafael Comment
  CAS-BOT-BC378888  Ranunculus californicus var. californicus H. L. Mason 1925-1-18 1181 Marin San Rafael to Forbes Comment
  CAS-BOT-BC499950  Orobanche fasciculata H. L. Mason 1917-4-28 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC519107  Trillium chloropetalum var. chloropetalum H. L. Mason 1917-4-4 80 Marin Tocaloma Comment
  CAS-BOT-BC526458  Triteleia laxa H. L. Mason 1917-4-28 s.n. Marin Mill Valley Comment
  POM257238  Dicentra formosa subsp. formosa H. L. Mason 1926-2-21 2649 Marin Road from Inverness to Point Reyes Lighthouse Comment
  POM311137  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-3-15 1199 Marin Along Petaluma-Pt. Reyes road 1 mi. NE of junction with Fairfax-Nicasio-Pt. Reyes Road. Comment
  RSA92271  Calycadenia multiglandulosa subsp. bicolor H. L. Mason 1928-4-28 4410 Marin Tiburon Peninsula Comment
  UC1093989  Polypodium scouleri Herbert L. Mason 1930-3-9 5522 Marin Pt. Reyes Comment
  UC1191711  Epilobium ciliatum subsp. watsonii Herbert L. Mason 1946-7-24 12938 a Marin Pond 3 Double Point Comment
  UCD136028  Blechnum spicant Herbert L. Mason 1926-2-22 2664 Marin Inverness Ridge. Comment
  UCD137471  Cheilanthes gracillima H. L. Mason 1925-2-1 1221 Marin Mt. Tamalpais. Comment
  CAS-BOT-BC129997  Dodecatheon subalpinum H. L. Mason 1928-7-3 4867 Mariposa Yosemite Creek drainage, Tioga Road, head of Yosemite Creek grade, Yosemite National Park Comment
  CAS-BOT-BC129998  Dodecatheon subalpinum H. L. Mason 1928-7-3 4867 Mariposa Yosemite Creek drainage, Tioga Road, head of Yosemite Creek grade, Yosemite National Park Comment
  CAS-BOT-BC229128  Claytonia megarhiza Herbert L. Mason 1935-7-29 s.n. Mariposa Yosemite National Park. Bernice Lake Comment
  CAS-BOT-BC306663  Helenium bigelovii Herbert L. Mason 1936-8-6 11515 Mariposa Sierra Nevada, Yosemite National Park. Peregoy Meadow, Glacier Point Road 2255 Comment
  CAS-BOT-BC349247  Microseris nutans H. L. Mason 1936-7-12 11243 Mariposa Yosemite National Park. Peregoy Meadow, Glacier Point road 2255 Comment
  CAS-BOT-BC400755  Asarum lemmonii Herbert L. Mason 1936-5-15 11132 Mariposa East fork of the Chowchilla River, Chowchilla Mountains 1463 Comment
  CAS-BOT-BC414504  Polygonum douglasii Herbert L. Mason 1936-7-12 11229 a Mariposa Sierra Nevada, Yosemite National Park. Peregoy Meadow, Glacier Point road Comment
  CAS-BOT-BC414505  Polygonum douglasii Herbert L. Mason 1936-8-6 11509 Mariposa Sierra Nevada, Yosemite National Park. Peregoy Meadow, Glacier Point road Comment
  SEINET3405793 Image available Polygonum douglasii Herbert L. Mason 1936-8-6 11509 Mariposa Yosemite National Park; Peregoy Meadow, Glacier Point road 2256 Comment
  SEINET4170661 Image available Hemicarpha occidentalis H. L. Mason 1938-7-13 11945 Mariposa Base of El Capitan, Yosemite Valley; Yosemite National Park 1227 Comment
  UC1039503  Galium bifolium Herbert L. Mason 1938-7-15 11957 Mariposa Tamarack Flat Yosemite National Park Comment
  UC1056424  Calochortus nudus Herbert L. Mason 1936-7-12 11224 Mariposa Glacier Point road Peregoy Meadow 2255 Comment
  UC1056445  Gnaphalium palustre Herbert L. Mason 1936-7-12 11233 Mariposa Glacier Point road Sierra Nevada, Yosemite National Park, Peregoy Meadow 2255 Comment
  UC1056446  Minuartia pusilla Herbert L. Mason 1936-7-12 11232 Mariposa Peregoy Meadow Sierra Nevada, Yosemite National Park (Glacier Point road) 2255 Comment
  UC1056452  Trifolium monanthum subsp. parvum Herbert Mason 1936-8-6 11502 Mariposa Peregoy Meadow, Glacier Point Sierra Nevada, Yosemite National Park 2255 Comment
  UC1056453  Gnaphalium palustre Herbert L. Mason 1936-7-12 11238 Mariposa Peregoy Meadow Sierra Nevada, Yosemite National Park, Glacier Meadow, Pereg 2255 Comment
  UC1083131  Helenium bigelovii Herbert L. Mason 1936-8-6 11515 Mariposa Glacier Point Road, Peregoy Meadow Yosemite National Park, Sierra Nevada, Peregoy Meadow 2255 Comment
  UC1083134  Antennaria corymbosa Herbert L. Mason 1936-7-12 11240 Mariposa Glacier Point road, (wet meadow surrounded by Pinus murrayana) Peregoy Meadow; Sierra Nevada, Yosemite National Park 2255 Comment
  UC1083135  Chaenactis douglasii var. douglasii Herbert L. Mason 1936-7-11 11200 Mariposa Wawona 1249 Comment
  UC1191155  Dodecatheon alpinum H. L. Mason 1923-7-28 667 Mariposa Snow Flat Sierra Nevada Mountains, Yosemite National Park Comment
  UC1199861  Dodecatheon alpinum H. L. Mason 1923-8-25 354 Mariposa Snow Flat Sierra Nevada Mountains, Yosemite National Park Comment
  UC1540433  Asarum lemmonii Herbert L. Mason May 15-16, 1936 11132 Mariposa East fork of the Chowchilla River, Chowchilla Mountains Comment
  UC566696  Microseris nutans Herbert L. Mason 1923-7-28 662 Mariposa Porcupine Flat Yosemite National Park Comment
  UC581524  Viola pinetorum subsp. pinetorum H. L. Mason 1923-7-28 666 Mariposa Porcupine Flat, Tioga Pass Road Porcupine Flat Comment
  UC632748  Eleocharis engelmannii var. detonsa H. L. Mason 1938-7-13 11947 Mariposa base of El Capitan; Yosemite National Park, Yosemite Valley 1226 Comment
  UC632770  Eleocharis bella Herbert L. Mason 1938-7-13 11948 Mariposa Yosemite Valley, base of El Capitan Sierra Nevada, Yosemite National Park 1226 Comment
  UC632775  Lipocarpha occidentalis H. L. Mason 1936-7-12 11216 Mariposa along Merced River, Yosemite National Park, Yosemite Valley Merced River; Yosemite National Park, Yosemite Valley, Merced River Comment
  UC632791  Galium trifidum var. pusillum H. L. Mason 1936-7-12 11241 Mariposa Peregoy Meadow Yosemite National Park, Glacier Point Road 2255 Comment
  UC632805  Heterocodon rariflorum H. L. Mason 1936-7-11 11199 Mariposa Wawona 1249 Comment
  UC632811  Phacelia hydrophylloides H. L. Mason 1936-7-6 11147 Mariposa Hetch Hetchy Trail w Yosemite Creek; Yosemite National Park 2377 Comment
  UC632870  Eriophyllum confertiflorum var. confertiflorum H. L. Mason 1936-7-6 11136 Mariposa Yosemite Falls Trail Yosemite National Park, Yosemite Falls Trail Comment
  UC665676  Claytonia megarhiza Herbert L. Mason 1935-7-29 9450 Mariposa Bernice Lake; Yosemite National Park Comment
  UC673493  Dodecatheon jeffreyi H. L. Mason 1922-7-25 327 Mariposa 1 1/2 mi w Porcupine Flat; Sierra Nevada Mountains, Yosemite National Park 2133 Comment
  UC673495  Dodecatheon alpinum H. L. Mason 1923-8-25 354 Mariposa Snow Flat Sierra Nevada Mountains, Yosemite National Park Comment
  UC673557  Corallorhiza maculata H. L. Mason 1922-7-25 331 Mariposa Porcupine Flat; Tioga Pass Rd. 2133 Comment
  UC971892  Limnanthes montana Charles T. Mason Jr. 1949-5-9 1287 Mariposa along stream 2 mi s Mormon Bar (road from Mormon Bar to Raymond) Comment
  UC971894  Limnanthes montana Charles T. Mason Jr. 1949-5-9 1289 Mariposa 6 mi n Raymond-Le Grande-Mormon Bar corner Comment
  UCR139437  Myrica hartwegii H. L. Mason 1936-7-11 11209 Mariposa Sierra Nevada Mtns., Big Creek, a tributary of the South Fork of the Merced River, near Wawona 1402 Comment
  CAS-BOT-BC16909  Delphinium pratense Herbert L. Mason 1936-7-6 11149 Mariposa Hetch Hetchy Trail west of Yosemite Creek 2377 Comment
  CAS-BOT-BC219154  Ribes nevadense Herbert L. Mason 1931-7-7 11164 Mariposa Research Reserve, Hetch Hetchy Trail W of Dark Hole 2438 Comment
  CAS-BOT-BC229481  Lewisia kelloggii Herbert L. Mason 1941-7-6 12495 Mariposa Sierra Nevada, Yosemite National Park. Horse Ridge 2895 Comment
  POM270484  Aconitum columbianum var. columbianum H. L. Mason 1923-7-25 329 Mariposa Creek 1.5 miles below Porcupine Flats, Tuolumne County Comment
  SEINET10461179  Nemacladus interior Mason 1936-7-11 Mason 11198 Mariposa Wawona 1250 Comment
  SEINET10481896  Streptanthus polygaloides Mason 1936-5-15 Mason 11118 Mariposa Serpentine outcrops. Summit of rd between coulterville and bagby. 701 Comment
  SEINET6670657  Limnanthes montana C. T. Mason 1949-5-9 1287 Mariposa 2 miles south of Mormon Bar, road from Mormon Bar to Raymond Comment
  UC1056433  Lewisia pygmaea Herbert L. Mason 1936-7-7 11167 Mariposa Hetch Hetchy Trail w Dark Hole (Research Reserve); Sierra Nevada, Yosemite National Park 2438 Comment
  UC1056440  Saxifraga bryophora Herbert L. Mason 1936-7-6 11144 Mariposa Hetch Hetchy Trail w of Yosemite Creek; Sierra Nevada, Yosemite National Park 2286 Comment
  UC1081522  Boykinia major Herbert L. Mason 1936-7-11 11207 Mariposa w Wawona (Big Creek, a tributary of the South Fork of the Merced River); Sierra Nevada, trib of South Fork Merced River, Big Creek 1584 Comment
  UC1081523  Lithophragma Herbert L. Mason 1936-3-21 11020 Mariposa 3 mi n Coulterville Comment
  UC1081534  Chaenactis glabriuscula var. glabriuscula Herbert L. Mason 1936-3-21 11027 Mariposa 3 m n of Coulterville Comment
  UC1081543  Ribes nevadense Herbert L. Mason 1931-7-7 11164 Mariposa w Dark Hole (Hetch Hetchy Trail, Research Reserve); Sierra Nevada, Yosemite National Park 2438 Comment
  UC1081547  Trifolium breweri Herbert L. Mason 1936-8-6 11517 Mariposa Wawona Rd Sierra Nevada, Yosemite National Park Comment
  UC1081549  Chaenactis alpigena Herbert L. Mason 1936-7-6 11141 Mariposa w of Yosemite Creek (Hetch Hetchy Trail); Sierra Nevada, Yosemite National Park 2286 Comment
  UC1083209  Sidalcea hartwegii Herbert L. Mason 1936-5-16 11124 A Mariposa Summit of road between Coulterville and Bagby Comment
  UC1093917  Actaea rubra Herbert L. Mason 1936-7-9 11174 Mariposa s. White wolf (e. slope of hill forming boundary between Tuolumne & Mariposa Co.'s); Sierra Nevada, Yosemite Nat'l Park 2590 Comment
  UC1111600  Claytonia parviflora subsp. parviflora Herbert L. Mason 1936-3-21 11028 Mariposa 3 mi n Coulterville Comment
  UC632773  Cyperus squarrosus H. L. Mason 1936-7-12 11214 Mariposa along Merced R., Yosemite Valley Yosemite Nat'l Park, Yosemite Valley, Merced R. Comment
  UC632803  Lonicera conjugialis H. L. Mason 1936-7-6 11160 Mariposa w Dark Hole (Hetch Hetchy Trail, Research Reserve); Yosemite National Park 2438 Comment
  UC912200  Soliva sessilis Herbert L. Mason 1926-5-28 3259 Mariposa Yosemite National Park , Yosemite National Park (Sierra Nevada Mountains) Comment
  UC971906  Limnanthes striata Charles T. Mason Jr. 1948-5-1 1168 Mariposa along State Hwy 49 Bear Valley 609 Comment
  CAS-BOT-BC119358  Carex obnupta Herbert L. Mason 1946-5-18 12761 Mendocino Sphagnum bog E of Fort Bragg. Comment
  CAS-BOT-BC34194  Carex californica Herbert L. Mason 1946-5-18 12762 Mendocino East of Fort Bragg. Comment
  CAS-BOT-BC45855  Limnanthes bakeri Charles T. Mason, Jr. 1948-5-8 1181 Mendocino 0.6 mi. N. of Willits High School on east side of US Highway 101 426 Comment
  JEPS19557  Myosotis discolor Herbert L. Mason 1946-5-19 12777 Mendocino Cleone Lake n. of Fort Bragg; Cleone Lake Comment
  POM311141  Limnanthes bakeri C. T. Mason 1948-5-8 1181 Mendocino 0.6 miles N of Willits High School on east side of Hwy 101 427 Comment
  POM313116  Carex echinata subsp. phyllomanica H. L. Mason 1946-5-18 12760 Mendocino East of Fort Bragg. Comment
  SEINET3871835  Pinus bolanderi Herbert L. Mason 1934-9-3 8146 Mendocino White plains three miles east of Mendocino City.; 0 Comment
  UC1056988  Hesperevax sparsiflora var. brevifolia Herbert L. Mason 1940-5-22 12307 Mendocino Headland n of Pudding Creek slough; Fort Bragg Comment
  UC1061656  Pinus contorta Herbert L. Mason Mendocino Point Arena Comment
  UC1076053  Phlox speciosa subsp. occidentalis Herbert L. Mason 1947-5-18 14785 Mendocino w of Government Camp (lower slopes of Anthony Peak); Anthony Peak Comment
  UC1076543  Collinsia corymbosa Herbert L. Mason 1946-5-18 12769 Mendocino 6 mi n Fort Bragg (sand dune) Comment
  UC1083202  Hesperevax sparsiflora var. brevifolia Herbert L. Mason 1940-5-22 12307 Mendocino Headline n of Pudding Creek slough; Fort Bragg Comment
  UC1083306  Pseudotsuga menziesii var. menziesii Herbert L. Mason 1928-8-25 4921 Mendocino mesa 1 mi e of mouth of Noyo River Noyo River Comment
  UC1083322  Torreya californica Herbert L. Mason 1925-12-30 2559 Mendocino Hopland, Cloverdale Cloverdale, Hopland Comment
  UC1093913  Symphyotrichum chilense Herbert L. Mason 1932-8-26 7151 Mendocino 1.5 mi n Albion Comment
  UC1101417  Viola palustris Herbert L. Mason 1946-5-19 12778 Mendocino n of Fort Bragg (Cleone Lake); Cleone Lake Comment
  UC1178862  Castilleja ambigua subsp. ambigua Herbert L. Mason 1940-5-22 12300 Mendocino near Fort Bragg (headland n of Pudding Creek Slough) Comment
  UC1178863  Triphysaria eriantha subsp. rosea Herbert L. Mason 1940-5-22 12303 Mendocino headland n of Pudding Creek Slough; (near Fort Bragg) Comment
  UC1179020  Cupressus goveniana subsp. pygmaea Herbert L. Mason 1928-10-21 4995 Mendocino Fort Bragg Comment
  UC1179032  Juncus bolanderi Herbert L. Mason 1929-8-24 5394 Mendocino Pudding Creek Slough Fort Bragg Comment
  UC1179033  Juncus acuminatus Herbert L. Mason 1929-8-24 5395 Mendocino Pudding Slough Creek Fort Bragg Comment
  UC1191954  Sanicula crassicaulis Herbert L. Mason 1946-5-18 12773 Mendocino 6 mi n of Fort Bragg Comment
  UC555507  Horkelia marinensis H. L. Mason August 1930 5741 Mendocino Fort Bragg Comment
  UC566768  Helenium bolanderi H. L. Mason 1930-6-1 5625 Mendocino Fort Bragg Comment
  UC570763  Callitriche marginata H. L. Mason Jun 1930 5641 Mendocino 3 miles north of Fort Bragg Comment
  UC570967  Ribes sanguineum Herbert L. Mason 1929-9-1 5407 Mendocino 3 mi n Fort Bragg Comment
  UC571051  Ledum glandulosum H. L. Mason 1928-8-25 4924 Mendocino 1 mi e of mouth of Noyo River Comment
  UC573140  Heliotropium curassavicum Herbert L. Mason 1929-9-1 5408 Mendocino 3 mi. n. Fort Bragg Comment
  UC634905  Crocanthemum scoparium var. scoparium H. L. Mason June, 1930 5629 Mendocino Fort Bragg Comment
  UC635099  Ranunculus occidentalis H. L. Mason 1930-6-1 5614 Mendocino Cloverdale to Fort Bragg (via river); Navarro River Comment
  UC635490  Claytonia sibirica H. L. Mason 1928-10-21 5004 Mendocino n of Fort Bragg (Pudding Creek); Pudding Creek Comment
  UC665725  Pinus contorta H. L. Mason 1934-9-3 8148 Mendocino just N of Point Arena Comment
  UC672059  Xerophyllum tenax Herbert L. Mason June 1930 5634 Mendocino Fort Bragg Comment
  UC672061  Veratrum fimbriatum Herbert L. Mason 1928-8-25 4929 Mendocino mesa 1 mi e mouth of Noyo River; Noyo Comment
  UC908598  Linanthus bolanderi Herbert L. Mason 1929-5-9 5276 Mendocino 5 mi nw Laytonville Comment
  UC912209  Ambrosia chamissonis Herbert L. Mason 1929-9-1 5411 Mendocino 3 mi n Fort Bragg Comment
  UC912451  Sambucus racemosa var. racemosa Herbert L. Mason June, 1930 5628 Mendocino Fort Bragg Comment
  UC912659  Poa douglasii Herbert L. Mason 1929-9-1 5404 Mendocino 4 mi n Fort Bragg Comment
  UC971806  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1948-5-8 1180 Mendocino along US Hwy 101 5 mi s Willits 609 Comment
  CAS-BOT-BC391766  Anemone deltoidea H. L. Mason 1929-5-9 5280 Mendocino Bull Creek Flat Comment
  CAS-BOT-BC453776  Potamogeton natans Herbert L. Mason 1946-5-18 12770 Mendocino Six miles north of Fort Bragg Comment
  POM313029  Lilaea scilloides H. L. Mason 1948-6-10 13575 Mendocino Highway 1, 3 miles south of Gualala Comment
  UCD138202  Triglochin scilloides Herbert L. Mason 1948-6-10 13757 Mendocino Highway 1, 3 miles south of Gualala. Comment
  UCD49885  Isolepis carinata Herbert L. Mason 1946-5-19 12783 Mendocino (S. carinatus Gray). Cleone Lake, north of Fort Bragg, Mendocino County. Comment
  CAS-BOT-BC113407  Eleocharis flavescens var. flavescens Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-19 8376 Merced San Joaquin River, bridge below Snelling. Comment
  CAS-BOT-BC113408  Eleocharis flavescens var. flavescens Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-19 8376 Merced San Joaquin River, bridge below Snelling. Comment
  CAS-BOT-BC114115  Cyperus squarrosus Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-19 8377 Merced San Joaquin River, bridge below Snelling. Comment
  CAS-BOT-BC412702  Hollisteria lanata Herbert Mason 1940-5-4 12266 Merced Ortigalita Canyon, 2 miles north east of Ortigalita Peak 304 Comment
  CAS-BOT-BC412705  Hollisteria lanata Herbert Mason 1940-5-4 12266 Merced Ortigalita Canyon, 2 miles north east of Ortigalita Peak 304 Comment
  CAS-BOT-BC413540  Persicaria amphibia Herbert L. Mason; S. Galen Smith 1948-8-10 8307 Merced Just west of South Dos Palos Comment
  SEINET197565  Asclepias vestita subsp. vestita Herbert L. Mason 1940-5-5 12274 Merced Twin Peaks, Los Banos Creek, San Carlos Range. 610 Comment
  UC1099864  Potamogeton foliosus Herbert L. Mason, S. Galen Smith 1948-8-17 8336 Merced about 2 mi e of Westley (near Grayson); San Joaquin Valley Comment
  UC1100032  Potamogeton pusillus var. pusillus Herbert L. Mason 1948-6-29 13581 Merced 5 mi n of Volta; San Joaquin Valley Comment
  UC1100039  Potamogeton pusillus var. pusillus Herbert L. Mason, S. Galen Smith 1948-8-19 8363 Merced about 2 mi ne of Merced (on Snelling highway) Comment
  UC1100040  Potamogeton pusillus var. pusillus Herbert L. Mason, S. Galen Smith 1948-8-19 8362 Merced about 2 mi ne of Merced (on Snelling Highway) Comment
  UC1100057  Potamogeton nodosus Herbert L. Mason, S. Galen Smith 1948-8-19 8361 Merced about 2 mi ne of Merced (on Snelling highway) Comment
  UC1100182  Crypsis vaginiflora Herbert L. Mason 1948-7-29 8244 Merced Turner Island Road; salt slough at end, e of Los Banos Comment
  UC1100187  Crypsis vaginiflora Herbert L. Mason 1948-7-16 163 Merced 2 mi n Los Banos; Los Banos Wildlife Refuge Comment
  UC1100269  Echinochloa crus-galli Herbert L. Mason and S. Galen Smith 1948-8-19 8387 Merced 1 mi w Snelling Comment
  UC1100550  Cyperus squarrosus Herbert L. Mason and S. Galen Smith 1948-8-19 8377 Merced bridge below Snelling (San Joaquin River); San Joaquin River Comment
  UC1178881  Parvisedum pumilum Herbert L. Mason 1940-5-5 12277 Merced s of North Fork of Los Banos Creek (North Twin Peak (Diabloe Range), Inner South Coast Range); Inner South Coast Range, North Twin Peak Comment
  UC1191329  Chenopodium murale Herbert L. Mason and S. Galen Smith 1948-7-29 8233 Merced about 4 mi n Los Banos (North Mercy Springs Road) Comment
  UC1191406  Salicornia virginica Herbert L. Mason and Malcolm A. Nobs 1948-12-11 714 Merced n base Pacheco Pass Comment
Read comments
Sep 12 2008
  UC1191565  Lythrum californicum Herbert L. Mason, S. Galen Smith 1948-7-29 8234 Merced about 4 mi n of Los Banos (just n of Delta Road, North Mercy Springs Road); North Mercy Springs Road Comment
  UC1191626  Navarretia prostrata Herbert L. Mason 1952-5-18 14292 Merced e of Los Banos (Santa Fe grade); San Joaquin Valley Comment
  UC1191873  Kickxia spuria Herbert L. Mason and S. Galen Smith 1948-8-19 8365 Merced about 2 mi ne Merced (on Snelling highway) Comment
  UC1192059  Verbena bracteata Herbert L. Mason and S. Galen Smith 1948-7-29 8252 Merced e of Los Banos (at end of Turner Island Rd) Comment
  UC1192112  Gnaphalium palustre Herbert L. Mason and S. Galen Smith 1948-7-29 8243 Merced e of Los Banos; Turner Island Road Comment
  UC1192178  Bidens frondosa Herbert L. Mason and S. Galen Smith 1948-8-12 8333 Merced 5 mi e of Gustine (San Joaquin Valley); San Joaquin Valley Comment
  UC570765  Callitriche longipedunculata H. L. Mason 1932-3-16 706 a Merced West side of road, 4 miles north of Merced on Snelling Road Comment
  UC775186  Scutellaria siphocampyloides Herbert L. Mason 1940-5-5 12280 Merced n slope of Twin Peaks (North Fork Los Banos Creek); Inner South Coast Ranges, , North Fork Los Banos C 457 Comment
  UC935724  Sagittaria sanfordii Herbert L. Mason and S. Galen Smith 1948-8-11 8320 Merced s of junction of Merced and San Joaquin Rivers (Crane Ranch); San Joaquin Valley, jct of Merced and San Joaquin Rivers Comment
  UC935733  Sagittaria montevidensis subsp. calycina Herbert L. Mason and S. Galen Smith 1948-8-11 8322 Merced s of junction of Merced and San Joaquin Rivers (Crane Ranch); San Joaquin Valley, s of jct of Merced and San Joaquin River Comment
  UC935743  Sagittaria sanfordii Herbert L. Mason and S. Galen Smith 1948-8-19 8366 Merced on Snelling Highway about 2 mi ne Merced Comment
  UC971712  Linanthus grandiflorus H. L. Mason 1940-5-5 12275 Merced Los Banos Creek Comment
Read comments
Jun 9 2010
  UC971792  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-31 1246 Merced 2 mi se Le Grand (along road to Raymond) Comment
  CAS-BOT-BC233571  Navarretia prostrata Herbert L. Mason 1952-5-18 14292 Merced Santa Fe grade E of Los Banos [Banos], San Joaquin Valley Comment
  CAS-BOT-BC233603  Navarretia pubescens Herbert L. Mason 1940-5-3 12271 Merced S Coast Ranges. Piedra Azul Creek, NW of Ortigalita Peak 304 Comment
  CAS-BOT-BC419349  Persicaria punctata Herbert L. Mason; S. Galen Smith 1948-8-9 8286 Merced Pacheco Creek, about 10 miles west of summit of Pacheco Pass Comment
  CAS-BOT-BC456183  Najas guadalupensis Herbert L. Mason; S. Galen Smith 1948-7-30 8254 Merced About 7 miles northeast of junction of Merced and San Joaquin Rivers Comment
  POM312480  Atriplex serenana H. L. Mason, S. Smith 1948-7-29 8232 Merced North Mercy Springs road, about 4 miles N of Los Banos. Comment
  POM312486  Atriplex lentiformis H. L. Mason, S. Smith 1948-8-10 8316 Merced Mendota Pool, at entrance of Firebaugh canal, west side. Comment
  POM313056  Eleocharis acicularis var. acicularis H. L. Mason, S. Galen Smith 1948-8-11 8329 Merced Gustine Gun Club, 3 miles east of Gustine, San Joaquin Valley Comment
  SEINET10546230  Asclepias vestita Herbert L. Mason 1940-5-5 Mason 12274 Merced Twin Peaks, Los Banos Creek, San Carlos Range 610 Comment
  SEINET190370  Lomatium macrocarpum Herbert L. Mason 1940-5-4 286 Merced Piedra Azul Creek norhtwest of Ortigalita Peak Inner South Coast Ranges 305 Comment
  SEINET949758 Image available Stuckenia striata Herbert L. Mason, S. Galen Smith 1948-1 8327 Merced Crane Ranch, south of junction of Merced and San Joaquin Rivers. Comment
  UCD124789  Limosella acaulis Herbert L. Mason 1952-5-19 14293 Merced Santa Fe Grade east of Los Banos. Comment
  UCD126285  Cuscuta campestris Herbert L. Mason; S. Galen Smith 1948-8-19 8386 Merced 1 mile west of Snelling. Comment
  UCD138069  Sagittaria sanfordii Herbert L. Mason; S. Galen Smith 1948-8-11 8320 Merced Crane Ranch, south of junction of Merced and San Joaquin Rivers. Comment
  UCD138322  Stuckenia striata Herbert L. Mason; S. Galen Smith 1948-8-11 8327 Merced Crane Ranch, south of junction of Merced and San Joaquin Rivers. Comment
  UCD141019  Cyperus difformis Herbert L. Mason; S. Galen Smith 1948-8-11 8328 Merced Crane Ranch, south of junction of Merced and San Joaquin Rivers. Comment
  UCD141227  Lipocarpha micrantha Herbert L. Mason; S. Galen Smith 1948-8-19 8375 Merced San Joaquin River, bridge below Snelling. Comment
  UCD64026  Eragrostis mexicana subsp. virescens Herbert L. Mason; S. Galen Smith 1948-8-19 8367 Merced About 2 miles northeast of Merced on Snelling highway. Comment
  CAS-BOT-BC15159  Symphyotrichum frondosum Herbert Louis Mason 1947-8-9 13479 Modoc East side of Fairchild Swamp, N of Alturas. Comment
  CAS-BOT-BC15160  Symphyotrichum frondosum Herbert Louis Mason 1947-8-11 13487 Modoc Reservoir, Kelley Hot Springs, on Alturas-Canby Hwy. Comment
  CAS-BOT-BC242264  Stuckenia striata Herbert Louis Mason 1955-8-14 14648 Modoc S end of Goose Lake. Comment
  CAS-BOT-BC242271  Potamogeton richardsonii Herbert Louis Mason; Verne Grant 1947-7-11 13380 Modoc Road from Likely to Jess Valley, ca. 1 mi. E of Likely. Comment
  CAS-BOT-BC242375  Carex atherodes Herbert Louis Mason; Verne Grant 1947-7-12 13424 Modoc Near S end of west side road, along railroad tracks, Pit River Valley, S of Alturas. Comment
  CAS-BOT-BC245130  Schoenoplectus americanus Herbert Louis Mason 1947-8-11 13499 Modoc Hwy 81, W margin of Lower Lake, near boundary with Lassen Co. Comment
  CAS-BOT-BC245194  Carex atherodes Herbert Louis Mason; Verne Grant 1947-7-12 13424 Modoc Near S end of west side road, along railroad tracks, Pit River Valley, S of Alturas. Comment
  CAS-BOT-BC245221  Alisma gramineum Herbert Louis Mason 1955-8-13 14653 A Modoc SW side of Goose Lake. Comment
  CAS-BOT-BC247592  Phragmites australis Herbert Louis Mason 1947-8-11 13501 Modoc Hwy 81, N of Modoc-Lassen County line. Comment
  CAS-BOT-BC247679  Hordeum jubatum Herbert Louis Mason 1947-8-9 13478 Modoc E side of Fairchild Swamp, N of Alturas. Comment
  CAS-BOT-BC54285  Solidago spectabilis Herbert Louis Mason 1947-8-9 13459 Modoc Ingalls Swamp, N of Big Sage Reservoir. Comment
  CAS-BOT-BC58733  Plagiobothrys scouleri Herbert Louis Mason; Verne Grant 1947-7-12 13415 Modoc Pit River Valley, S of Alturas. Comment
  CAS-BOT-BC58748  Plagiobothrys scouleri Herbert Louis Mason; Verne Grant 1947-7-12 13415 Modoc Pit River Valley, S of Alturas. Comment
  POM312507  Aster frondosus H. L. Mason 1947-8-11 13487 Modoc Reservoir, Kelley Hot Springs, on Alturas-Conby Highway Comment
  POM312572  Plagiobothrys scouleri var. cusickii H. L. Mason, Verne Grant 1947-7-12 13421 Modoc Near south end of West Side Rd. along railroad tracks, Pit River Valley, south of Alturas Comment
  POM312577  Gratiola neglecta H. L. Mason, Verne Grant 1947-7-12 13393 Modoc Irrigation ditch by Jones' Lane, off Hwy 395, several miles S of Alturas. Comment
  POM313031  Alisma gramineum H. L. Mason 1955-8-13 14653 -A Modoc Southwest side of Goose Lake Comment
  SACT001759  Phleum pratense Herbert Mason 1947-8-13 Modoc Meadow, northeast side of F reservoir, north of Canby Comment
  UC1055935  Heteranthera dubia Herbert L. Mason 1955-8-14 14658 Modoc below Canby; Pit River Comment
  UC1060655  Collomia tinctoria Herbert L. Mason 1957-7-6 14718 Modoc Mill Creek Warner Mountains Comment
  UC1099882  Potamogeton epihydrus subsp. nuttallii Herbert L. Mason, Verne Grant 1947-6-12 13397 Modoc several mi s of Alturas (by Jones' Lane, off Hwy 395) Comment
  UC1099980  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-10 13352 Modoc 2 mi. e. Alturas (pasture land 1/4 mi. w. of Dorris Reservoir) Comment
  UC1100097  Potamogeton richardsonii Herbert L. Mason, Verne Grant 1947-7-11 13380 Modoc 1 mi e of Likely (on road from Likely to Jess Valley) Comment
  UC1100112  Agrostis alba Herbert L. Mason and Verne Grant 1947-8-13 13533 Modoc meadow on ne side of reservoir n Canby; F Reservoir Comment
  UC1100215  Beckmannia syzigachne Herbert L. Mason 1947-7-11 13367 Modoc irrigation ditch by Jones Lane (off Hwy 395, s of Alturas) Comment
  UC1100228  Alopecurus aequalis Herbert L. Mason 1947-8-13 13520 Modoc n. of Canby (n.e. side of F reservoir) Comment
  UC1100412  Phleum pratense Herbert L. Mason 1947-8-13 13537 Modoc n Canby (ne side of F reservoir); ne side of F reservoir Comment
  UC1100610  Eleocharis coloradoensis Herbert L. Mason, Verne Grant 1947-7-10 13351 Modoc 2 mi E of Alturas (Dorris Reservoir) Comment
  UC1101046  Juncus bufonius var. congestus Herbert L. Mason 1947-8-13 13532 Modoc n of Canby (ne side of F reservoir) Comment
  UC1101099  Juncus longistylis Herbert L. Mason 1947-8-13 13534 Modoc n of Canby (ne side of F reservoir) Comment
  UC1101364  Ranunculus aquatilis var. capillaceus Herbert L. Mason and Verne Grant 1947-7-11 13370 Modoc irrigation ditch by Jones' Lane (off Hwy 395, s of Alturas) Comment
  UC1101382  Ranunculus cymbalaria var. saximontanus Herbert L. Mason and Verne Grant 1947-7-12 13392 Modoc irrigation ditch by Jones' Lane (off Hwy 395, several mi s of Alturas) Comment
  UC1101498  Myriophyllum sibiricum Herbert L. Mason and Verne Grant 1947-7-12 13385 Modoc Irrigation ditch by Jones' Lane, off Highway 395, several mi S of Alturas. Comment
  UC1101527  Callitriche hermaphroditica Herbert L. Mason and Verne Grant 1947-7-12 13403 Modoc several mi s Alturas (by Jones' Lane, off Highway 395) Comment
  UC1101549  Elatine triandra Herbert L. Mason 1947-8-13 13527 Modoc n Canby (ne side of F reservoir) Comment
  UC1101554  Elatine ambigua Herbert L. Mason 1947-7-10 13347 Modoc 2 air mi e Alturas (on little island); Doris Reservoir Comment
  UC1178810  Linanthus septentrionalis Herbert L. Mason 1946-7-13 13453 Modoc Fandango Pass Warner Mountains Comment
  UC1191246  Polygonum douglasii subsp. douglasii Herbert L. Mason and Verne Grant 1937-7-13 13451 Modoc w end of pass near Goose Lake (on road to Fort Bidwell); Fandango Pass Comment
  UC1191334  Chenopodium album Herbert L. Mason and Verne Grant 1947-7-12 13420 Modoc s Alturas (irrigation ditch near s end of w side road, along railroad tracks); Pit River Valley Comment
  UC1191370  Atriplex rosea Herbert L. Mason 1947-8-9 13477 Modoc e side Fairchild Swamp (n of Alturas); e side Fairchild Swamp, n of Alturas Comment
  UC1191491  Potentilla rivalis Herbert L. Mason 1947-8-9 13476 Modoc n Alturas (e side of Fairchild Swamp); , n of Alturas Comment
  UC1191494  Potentilla rivalis Herbert L. Mason 1947-8-13 13518 Modoc n Canby (ne side of F reservoir); n of Canby, ne side of F reservoir Comment
  UC1191496  Potentilla rivalis Herbert L. Mason, Verne Grant 1947-7-12 13404 Modoc Irrigation ditch by Jones' Lane off Highway 395 several mi s Alturas; s of Alturas Comment
  UC1191609  Lotus humistratus Herbert L. Mason and Verne Grant 1947-7-10 13332 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1191621  Epilobium campestre Herbert L. Mason 1947-8-13 13519 Modoc n Canby (ne side of F reservoir); F reservoir Comment
  UC1191624  Gayophytum racemosum Herbert L. Mason and Verne Grant 1947-7-9 13310 a Modoc Cedar Pass Warner Range (summit of Range) 1920 Comment
  UC1191639  Convolvulus arvensis Herbert L. Mason and Verne Grant 1947-7-10 13338 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1191653  Asperugo procumbens Herbert L. Mason and Verne Grant 1947-7-12 13416 Modoc s. of Alturas (Pit R. Valley near s. end of w. side of rd.); Pit R. Valley Comment
  UC1191748  Taraxia tanacetifolia Herbert L. Mason and Verne Grant 1947-7-10 13327 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1191845  Plagiobothrys cusickii Herbert L. Mason and Verne Grant 1947-7-12 13419 Modoc s of Alturas (along railroad track); Pit River Valley Comment
  UC1191852  Symphoricarpos rotundifolius var. rotundifolius Herbert L. Mason 1948-7-18 13619 Modoc Cedar Pass; Warner Mountains Comment
  UC1191879  Gratiola neglecta Herbert L. Mason and Verne Grant 1947-7-12 13393 Modoc off highway 395 several mi s Alturas (irrigation ditch by Jones' Lane) Comment
  UC1192037  Downingia insignis Herbert L. Mason and Verne Grant 1947-7-10 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1192079  Symphyotrichum frondosum Herbert L. Mason 1947-8-9 13479 Modoc east side of Fairchild Swamp, n of Alturas Comment
  UC1192189  Bidens cernua Herbert L. Mason and Verne Grant 1947-7-12 13400 Modoc several mi s of Alturas (by Jones' Lane off Highway 395); Highway 395, Jones' Lane Comment
  UC581517  Viola beckwithii H. L. Mason 1926-4-12 2884 Modoc Davis Creek Comment
  UC935719  Sagittaria cuneata Herbert L. Mason 1947-8-12 13506 Modoc Alturas Junction of North and South Forks of Pit River (junction of North and South Forks of Pit River) Comment
  UC935737  Sagittaria cuneata Herbert L. Mason and Verne Grant 1947-7-11 13368 Modoc irrigation ditch by Jones Lane off Highway 395 s Alturas Comment
  UC935795  Sagittaria cuneata Herbert L. Mason and Verne Grant 1947-7-12 13413 Modoc irrigation ditch near s end of west side road Pit River Valley s Alturas; Pit River Valley Comment
  UC985651  Alisma plantago-aquatica Herbert L. Mason 1947-8-12 13508 Modoc Alturas, junction of North and South Forks of Pit River Pit River Comment
  UC985676  Nuphar lutea subsp. polysepala Herbert L. Mason, Verne Grant 1947-7-12 13388 Modoc several miles s of Alturas (Irrigation ditch by Jones' Lane, off Highway 395) Comment
  UCD120801  Plagiobothrys cusickii Herbert L. Mason; Verne Grant 1947-7-12 13415 Modoc Near south end of west side road, Pit River Valley, south of Alturas. Comment
  UCD135274  Psilocarphus brevissimus Herbert L. Mason; Verne Grant 1947-7-10 13328 Modoc Dorris Reservoir, 2 miles east of Alturas. Comment
  UCD137455  Symphoricarpos rotundifolius Herbert L. Mason 1948-7-18 13619 Modoc Cedar Pass, Warner Mountains. Comment
  UCD143730  Schoenoplectus americanus Herbert L. Mason 1947-8-11 1349 Modoc on Highway 81, west margin of Lower Lake, near boundary between Lassen and Modoc counties. Comment
  CAS-BOT-BC245033  Triglochin concinna var. debilis Herbert Louis Mason; Verne Grant 1947-7-12 13438 Modoc Corporation Ranch Headquarters, N of Likely. Comment
  CAS-BOT-BC58762  Plagiobothrys scouleri Herbert Louis Mason; Verne Grant 1947-7-12 13408 Modoc W side of South Fork of Pit River Valley, SW of Alturas. Comment
  CAS-BOT-BC58767  Plagiobothrys stipitatus var. micranthus Herbert Louis Mason; Verne Grant 1947-7-12 13410 Modoc W side of Pit River Valley, S of Alturas. Comment
  POM312463  Lemna trisulca H. L. Mason, Verne Grant 1947-7-12 13432 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  POM313027  Triglochin maritima H. L. Mason, Verne Grant 1947-7-12 13438 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  POM313035  Alisma triviale H. L. Mason 1955-8-13 14653 C Modoc S end of Goose Lake. Comment
  POM313115  Carex praegracilis H. L. Mason, Verne Grant 1947-7-12 13439 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  RSA0010941  Castilleja minor subsp. minor H. L. Mason 1947-8-11 13493 Modoc On Highway 81, west margin of Lower Lake, near boundary between Lassen and Modoc counties. Comment
  RSA114086  Stuckenia striata H. L. Mason 1955-8-14 14648 Modoc Plants floating near or below surface, spikes usually emersed, S end o Goose Lake, Modoc County Comment
  UC1060643  Polygonum polygaloides Herbert L. Mason 1957-7-6 14725 Modoc Rim Rock, West of Goose Lake Comment
  UC1100037  Potamogeton pusillus var. pusillus Herbert L. Mason 1947-8-8 13468 Modoc nw of Alturas (sw margin of Big Sage Reservoir); Big Sage Reservoir Comment
  UC1100158  Alisma plantago-aquatica Herbert L. Mason 1955-8-13 14651 B Modoc s end Goose Lake Comment
  UC1100885  Scirpus nevadensis Herbert L. Mason 1947-8-15 13548 Modoc e side Goose Lake (mouth Crane Creek, Willow Ranch); mouth Crane Creek, e side Goose Lake, Willow Ranch Comment
  UC1101269  Lemna trisulca Herbert L. Mason, Verne Grant 1947-7-12 13432 Modoc n of Likely (Corportation Ranch Headquarters); Corportation Ranch Headquarters Comment
  UC1101383  Ranunculus cymbalaria var. saximontanus Herbert L. Mason 1947-8-15 13552 Modoc mouth of Crane Creek Goose Lake, Willow Ranch (e side of Lake) Comment
  UC1101534  Elatine triandra Herbert L. Mason 1947-8-8 13472 Modoc nw Alturas (sw margin of Big Sage Reservior) Comment
  UC1101550  Elatine triandra Herbert L. Mason 1947-8-8 13465 Modoc nw Alturas (sw margin of Big Sage Reservoir) Comment
  UC1178908  Ranunculus glaberrimus Herbert L. Mason 1949-4-16 13999 Modoc summit of grade between Madeline Plain and Likely Comment
Read comments
Jun 2 2009
  UC1184073  Viola beckwithii Herbert L. Mason 1961-4-16 13996 Modoc Mesa e of Alturas Comment
  UC1191272  Rumex maritimus Herbert L. Mason and Verne Grant 1947-7-11 13362 Modoc 5 mi s Alturas (on Highway 395) Comment
  UC1191323  Chenopodium chenopodioides Herbert L. Mason 1947-8-15 13555 Modoc Crane Creek Goose Lake, Willow Ranch (mouth, e side of lake) Comment
  UC1191343  Chenopodium glaucum Herbert L. Mason 1947-8-15 13554 Modoc Crane Creek Goose Lake, Willow Ranch (mouth, e side of lake) Comment
  UC1191470  Ranunculus sceleratus Herbert L. Mason and Verne Grant 1947-7-12 13430 Modoc s loop of w side road Likely Comment
  UC1191715  Epilobium brachycarpum Herbert L. Mason 1947-8-8 13458 Modoc n Big Sage Reservoir (nw of Alturas); Ingalls Swamp Comment
  UC1191839  Plagiobothrys cognatus Herbert L. Mason and Verne Grant 1947-7-12 13408 Modoc sw of Alturas (w side of the South Fork of Pit River Valley); South Fork of Pit River Valley Comment
  UC1191844  Plagiobothrys stipitatus var. micranthus Herbert L. Mason and Verne Grant 1947-7-12 13410 Modoc s of Alturas (w side of Pit River Valley); Pit River Valley Comment
  UC1192009  Galium trifidum Herbert L. Mason and Verne Grant 1947-7-12 13434 Modoc n Likeley; Corporation Ranch Headquarters Comment
  UC1192032  Downingia bicornuta var. bicornuta Herbert L. Mason and Verne Grant 1947-7-12 13412 Modoc s of Alturas (w side of Pit River Valley); Pit River Valley Comment
  UCD106757  Epilobium pallidum Herbert L. Mason; Verne Grant 1947-7-13 13441 Modoc Joseph Creek on Highway 395, N of Davis Creek (east side of Goose Lake). Comment
  UCD120787  Plagiobothrys cognatus Herbert L. Mason; Verne Grant 1947-7-12 13408 Modoc Vernal pool; west side of the South Fork of Pit River Valley, southwest of Alturas. Comment
  UCD129551  Bidens cernua Herbert L. Mason; Verne Grant 1947-7-12 13431 Modoc south loop of west side road, north of Likely. Comment
  UCD138293  Zannichellia palustris Herbert L. Mason; Verne Grant 1947-7-12 13427 Modoc North of Likely. Comment
  CAS-BOT-BC13955  Boechera lemmonii H. L. Mason 1936-7-28 11401 a Mono Sierra Nevada. Vicinity of Mount Dana. Dana Plateau. 3657 Comment
  CAS-BOT-BC454094  Potamogeton pusillus subsp. tenuissimus Herbert L. Mason 1948-9-4 13636 Mono Rush Creek, Mono Lake Comment
  CAS-BOT-BC59738  Cassiope mertensiana H. L. Mason 1928-7-5 4877 Mono Tioga Mines. Comment
  NY34547  Pinus albicaulis H. L. Mason 1936-8-6 11519 Mono Hills between Saddlebag Lake and Conness Glacier 3200.4 Comment
  POM313023  Potamogeton foliosus H. L. Mason 1948-9-4 13636 Mono Rush Creek, Mono Lake. Comment
  UC1081531  Eucephalus breweri Herbert L. Mason 1936-7-29 11432 Mono n side of, (Conness Glacier) Mount Conness 3657 Comment
Read comments
Mar 5 2007
  UC1081535  Erigeron algidus Herbert L. Mason 1936-7-28 11415 Mono Dana Plateau Yosemite National Park, Dana Plateau 3505 Comment
  UC1081542  Erigeron pygmaeus Herbert L. Mason 1936-7-28 11414 Mono Dana Plateau 3505 Comment
  UC1081550  Dieteria canescens var. canescens Herbert L. Mason 1936-8-1 11483 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1081554  Pleiacanthus spinosus Herbert L. Mason 1936-8-1 11491 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1081555  Tetradymia canescens Herbert L. Mason 1936-8-1 11480 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1081575  Eriogonum elatum Herbert L. Mason 1936-8-1 11479 Mono Leevining Canyon Sierra Nevada, Yosemite National Park, Leevining Canyon Comment
  UC1081576  Eriogonum nudum var. scapigerum Herbert L. Mason 1936-7-29 11431 Mono w Saddlebag Lake (cirque below Conness Glacier) 3200 Comment
  UC1083130  Purshia tridentata var. tridentata Herbert L. Mason 1936-8-1 11499 Mono 3 mi n Mono Lake; Sierra Nevada, Yosemite National Park 2072 Comment
  UC1083136  Penstemon rostriflorus Herbert L. Mason 1936-8-1 11485 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1099858  Potamogeton gramineus Herbert L. Mason 1948-9-5 13671 Mono junction of Highway 108 and Highway 395 Comment
  UC1099948  Triglochin maritima Herbert L. Mason 1948-9-4 13638 Mono Mono Lake, Rush Creek Rush Creek; Mono Lake, Rush Creek Comment
  UC1100160  Lilaea scilloides Herbert L. Mason 1948-9-5 13673 Mono junction of Highway 108 and Highway 395 Comment
  UC1100214  Beckmannia syzigachne Herbert L. Mason 1948-9-4 13669 b Mono Rush Creek Mono Lake Comment
  UC1100319  Hordeum jubatum Herbert L. Mason 1948-9-4 13649 Mono Rush Creek Mono Lake Comment
  UC1100389  Polypogon monspeliensis Herbert L. Mason 1948-9-4 13644 Mono Rush Creek Mono Lake; , Rush Creek Comment
  UC1100720  Eleocharis macrostachya Herbert L. Mason 1948-9-4 13660 Mono Rush Creek, Mono Lake Comment
  UC1100884  Scirpus nevadensis Herbert L. Mason 1948-9-4 13662 Mono Rush Creek Mono Lake, Rush Creek Comment
  UC1100913  Scirpus maritimus Herbert L. Mason 1948-9-4 13650 Mono Rush Creek , Rush Creek (Mono Lake) Comment
  UC1101529  Callitriche hermaphroditica Herbert L. Mason 1948-9-5 13674 Mono junction of Highway 108 and Highway 39 junction of Highway 108 and Highway 395 Comment
  UC1191342  Chenopodium glaucum Herbert L. Mason 1948-9-4 13645 Mono Rush Creek Mono Lake Comment
  UC1191401  Sarcobatus vermiculatus Herbert L. Mason 1948-9-5 13676 Mono island in Mono Lake Comment
  UC1240215  Gentianopsis holopetala C. T. Mason 1953-8-22 1513 Mono along Slate Creek at Carnegie Institution Timberline Station; , Slate Creek 3048 Comment
  UC1275794  Malacothrix glabrata Herbert L. Mason 1963-6-24 15214 Mono Paoha Island Mono Lake Comment
  UC1275795  Descurainia pinnata Herbert L. Mason 1963-6-24 15210 Mono Paoha Island; Mono Lake Comment
  UC583740  Angelica lineariloba Herbert L. Mason 1936-8-1 11482 Mono Leevining Canyon Comment
  UC641783  Rumex salicifolius var. denticulatus H. L. Mason 1936-7-31 11476 Mono near Saddlebag Lake; Sierra Nevada, Tioga Crest 3078 Comment
  UC642653  Ivesia shockleyi var. shockleyi H. L. Mason 1936-7-28 11398 Mono vicinity Mount Dana (Dana Plateau); Sierra Nevada 3657 Comment
  UC642736  Saxifraga odontoloma H. L. Mason 1936-7-31 11475 Mono Tioga Crest near Saddlebag Lake (Tioga Pass region); Sierra Nevada, , Tioga Crest 3200 Comment
  UC665614  Gilia subacaulis Herbert L. Mason 1941-7-13 12485 Mono along road to Bodie n Mono Lake; n of Mono Lake, along road to Bodie Comment
  UC712320  Astragalus purshii var. lectulus H. L. Mason 1936-7-31 11457 Mono e Saddlebag Lake (Tioga Crest, Sierra Nevada); Sierra Nevada, Tioga Crest, e of Saddlebag Lake 3474 Comment
  UC712477  Erigeron breweri var. breweri Herbert L. Mason 1936-8-1 11490 Mono Leevining Canyon Sierra Nevada, Leevining Canyon Comment
  UC712512  Erigeron pygmaeus Herbert L. Mason 1936-7-31 11467 Mono e of Saddlebag Lake; Sierra Nevada, Tioga Crest 3474 Comment
  UC712635  Epilobium hornemannii subsp. hornemannii H. L. Mason 1936-7-31 11474 Mono e Saddlebag Lake; Sierra Nevada, Tioga Pass region, Tioga Crest 3413 Comment
  UCD138224  Potamogeton berchtoldii Herbert L. Mason 1948-9-4 13636 Mono Rush Creek. Comment
  UCD86369  Melica bulbosa H. L. Mason 1936-7-23 11471 Mono near Saddlebag Lake, Tioga Pass area. 2956 Comment
  UCD86551  Muhlenbergia asperifolia H. L. Mason 1936-8-1 11493 Mono Mono Lake. Comment
  UCD98199  Chenopodium glaucum var. salinum Herbert L. Mason 1948-9-4 13645 Mono Rush Creek, Mono Lake. Comment
  JEPS3693  Castilleja linariifolia H. L. Mason 1953-7-21 14563 Mono just e Campito Mountain (near road to Naval Physiological Research Station, close to White Mt. Peak); White Mountains 3352 Comment
  SD58479  Phacelia hastata H. L. Mason 1953-7-21 14562 Mono White Mts., east of Campito Mt. 3353 Comment
  UC1025288  Draba oligosperma var. oligosperma Herbert L. Mason 1936-7-28 11406 Mono Dana Plateau Mono National Forest, Dana Plateau Comment
  UC1275790  Astragalus newberryi Herbert L. Mason 1963-5-6 15232 Mono Danburg Beach , Danburg Beach (Mono Lake) Comment
  UC1275791  Castilleja angustifolia Herbert L. Mason 1963-5-7 15233 Mono e of Mono Lake (Benton summit); Benton Comment
  CAS-BOT-BC168679  Ribes speciosum Herbert L. Mason 1921-5-7 s.n. Monterey Rancho del Monte, Carmel River Comment
  CAS-BOT-BC188011  Eriastrum virgatum Herbert L. Mason 1923-6-23 541 Monterey Carmel River, 10 miles above Carmel, near schoolhouse Comment
  CAS-BOT-BC191220  Chorizanthe douglasii H. L. Mason 1923-6-23 542 Monterey Carmel River, ten miles above Carmel Comment
  CAS-BOT-BC286568  Cirsium occidentale var. venustum H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte, Carmel River Comment
  CAS-BOT-BC388716  Minuartia douglasii H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte, Carmel River Comment
  NY16757  Cupressus macrocarpa H. L. Mason 1934-10-21 10023 Monterey Point Lobos Comment
  POM256416  Pholistoma membranaceum H. L. Mason 1929-3-3 5039 Monterey Mesa above canyon, 4 miles SE of Jamesburg Post Office, Santa Lucia Mountains. Comment
  POM256509  Eriogonum parvifolium var. parvifolium H. L. Mason, Edward Lee 1934-10 9062 Monterey Point Lobos State Park Comment
  RSA65176  Chorizanthe douglasii H. L. Mason 1923-6-23 542 Monterey 10 miles above Carmel Comment
  SEINET190347  Micropus californicus var. subvestitus H. L. Mason 1932-4-28 7046 Monterey Pajaro Hills Comment
  UC1039518  Galium californicum subsp. californicum H. L. Mason 1932-4-28 7037 Monterey Pajaro Hills Comment
  UC1039599  Arceuthobium campylopodum Herbert L. Mason 1929-12-1 5515 Monterey Huckleberry Hill Carmel Comment
  UC1076262  Hoita macrostachya Herbert L. Mason 1930-10-25 5753 Monterey headwaters of the Arroyo Seco Santa Lucia Mountains Comment
  UC1076284  Cupressus macrocarpa H. L. Mason 1927-7-30 3991 Monterey Cypress Point Comment
  UC1076285  Cupressus macrocarpa H. L. Mason 1923-6-23 559 Monterey Cypress Point Comment
  UC1076319  Phoradendron macrophyllum H. L. Mason 1923-6-14 378 Monterey river banks by King City Bridge Comment
  UC1076387  Calocedrus decurrens H. L. Mason 1930-10-25 5756 Monterey headwaters of the Arroyo Seco Santa Lucia Mts., Arroyo Seco Comment
  UC1076413  Symphoricarpos mollis Herbert L. Mason 1927-7-30 3996 Monterey Casrmel Comment
  UC1081506  Castilleja affinis subsp. affinis H. L. Mason 1929-3-2 5025 Monterey 20 mi s Carmel (Big Sur Road) Comment
  UC1083142  Quercus chrysolepis Herbert L. Mason 1928-10-3 4990 Monterey 10 mi from the Mission; Carmel River Comment
  UC1083151  Quercus chrysolepis H. L. Mason 1930-10-25 5750 Monterey headwaters of Arroyo Seco; Santa Lucia Mts. Comment
  UC1083203  Quercus agrifolia Herbert L. Mason 1928-10-3 4989 Monterey 10 mi from Mission; Carmel River Comment
  UC1111012  Muhlenbergia rigens Herbert L. Mason 1930-10-25 5746 Monterey Headwaters of the Arroyo Seco Santa Lucia Mountains Comment
  UC1179021  Abies bracteata Herbert L. Mason 1930-10-25 5757 Monterey headwaters Arroyo Seco; Santa Lucia Mountains, Arroyo Seco Comment
  UC1191224  Caulanthus coulteri var. lemmonii Herbert L. Mason 1952-4-5 14201 Monterey 6 mi se Jolon (settlement near Lockwood); se of Jolon, settlement near Lockwood Comment
  UC1191846  Jaumea carnosa Herbert L. Mason 1945-7-20 14801 Monterey near Moss Landing; Elkhorn Slough Comment
  UC555427  Lotus benthamii H. L. Mason Nov 1931 5881 Monterey road between Monterey and Carmel Comment
  UC555442  Amelanchier utahensis H. L. Mason 1930-10-25 5743 Monterey Headwaters of Arroyo Seco; Santa Lucia Mts. Comment
  UC566659  Senecio flaccidus var. douglasii H. L. Mason 1928-10-3 4991 Monterey 10 mi e Carmel Mission (along Carmel River); Carmel River Comment
  UC566904  Forestiera pubescens H. L. Mason 1923-6-22 536 Monterey Bradley Comment
  UC570985  Rhamnus californica subsp. californica Herbert L. Mason 1927-7-30 3988 Monterey Cypress Point Comment
  UC581168  Meconella denticulata H. L. Mason 1935-4-21 8269 Monterey Carmel Canyon Comment
  UC581496  Viola pedunculata H. L. Mason 1929-3-1 5017 Monterey 25 miles up the Carmel River (Jamesburg-Arroyo Seco Road) Comment
  UC588142  Ericameria ericoides Herbert L. Mason 1936-9-13 11525 Monterey 9 mi n Salinas; Prunedale Comment
  UC634605  Eriogonum elongatum var. elongatum H. L. Mason September 1930 5911 Monterey between Watsonville and Castroville (low hills at upper end of Elkhorn Slough); Elkhorn Slough Comment
  UC634652  Epilobium canum subsp. canum H. L. Mason 1930-10-25 5781 Monterey between Santa Lucia Ranger Station (along river, foothills of mts.); Santa Lucia Mountains, San Antonio River Comment
  UC634798  Ceanothus cuneatus var. rigidus Herbert L. Mason 1923-6-23 563 Monterey Del Monte Comment
  UC634803  Ceanothus griseus Herbert L. Mason Jun 1923 555 Monterey Point Lobos Comment
  UC635433  Eriogonum gracile H. L. Mason September, 1930 5910 Monterey low hills at upper end of Elkhorn Slough between Watsonville and Castroville; Elkhorn Slough Comment
  UC672230  Solidago velutina subsp. californica H. L. Mason 1930-10-25 5782 Monterey foothills of the Santa Lucia Mountains between Jolon and Santa Lucia Ranger Station along the San Antonio River; foothills of the Santa Lucia Mountains, San Antonio River Comment
  UC673609  Lathyrus vestitus var. vestitus Herbert L. Mason 1929-3-2 5031 Monterey 20 mi s Carmel; Big Sur Road Comment
  UC880173  Gilia tenuiflora H. L. Mason 1921-5-7 Monterey Rancho del Monte Carmel River, Rancho del Monte Comment
  UC908391  Phlox gracilis Herbert L. Mason 1929-3-1 5013 Monterey 10 mi e Carmel Mission; Carmel River Comment
  UC908988  Gilia achilleifolia subsp. multicaulis Herbert L. Mason, Edward Lee March, 1935 9437 Monterey Point Lobos State Park Comment
  UC912207  Artemisia pycnocephala Herbert L. Mason 1923-6-23 547 Monterey Carmel River Comment
  UC912366  Lonicera subspicata var. denudata Herbert L. Mason 1930-10-25 5769 Monterey San Antonio River Comment
  UC912467  Lythrum hyssopifolia Herbert L. Mason 1930-9-1 5902 Monterey between Watsonville and Castroville (Elkhorn Slough); Elkhorn Slough Comment
  CAS-BOT-BC226458  Gilia tenuiflora subsp. tenuiflora H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte Comment
  CAS-BOT-BC242689  Eriogonum covilleanum H. L. Mason 1930-4-20 s.n. Monterey Bitterwater Creek, north of Priest Valley and west of Hernandez Comment
  CAS-BOT-BC246564  Eriogonum elegans H. L. Mason 1930-10-25 5777 Monterey Between Jolon and Santa Lucia Ranger Station, foothills of the Santa Lucia Mountains Comment
  CAS-BOT-BC312530  Hulsea heterochroma H. L. Mason 1934-9-9 8152 Monterey Headwaters of Arroyo Seco, Santa Lucia Mountains Comment
  CAS-BOT-BC342374  Logfia gallica H. L. Mason 1933-4-22 7216 Monterey Pajaro Hills Comment
  CAS-BOT-BC422537  Hesperomecon linearis H. L. Mason 1935-4-21 8268 Monterey Carmel Valley Comment
  CAS-BOT-BC422985  Stylomecon heterophylla H. L. Mason 1930-10-25 5775 Monterey Along the San Antonio River, between Jolon and Santa Lucia Range station in the foothills of the Santa Lucia Mountains Comment
  CAS-BOT-BC454144  Ruppia maritima Herbert L. Mason 1945-7-20 s.n. Monterey Elkhorn Slough Comment
  CAS-BOT-BC500297  Orobanche uniflora subsp. occidentalis H. L. Mason 1921-5-7 s.n. Monterey Hillside opposite schoolhouse, Rancho del Monte, Carmel River Comment
  CAS-BOT-BC524333  Triteleia ixioides subsp. ixioides H. L. Mason 1921-5-1 s.n. Monterey Rancho del Monte, Carmel River Comment
  NY32490  Chorizanthe pungens H. L. Mason 1923-6-23 565 Monterey This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET3405321 Image available Eriogonum roseum Herbert L. Mason 1934-9-8 Monterey 3 mi SE of "The Indians" San Antonio River 549 Comment
  UC1076461  Lessingia pectinata var. tenuipes Herbert L. Mason Sep 1930 5907 Monterey at upper end of Elkhorn Slough; Watsonville Comment
  UC1093965  Lessingia pectinata var. tenuipes Herbert L. Mason 1930-10-25 5780 Monterey between Jolon and Santa Lucia Ranger Station; foothills of the Santa Lucia Mts., San Antonio River Comment
  UC1111606  Downingia cuspidata Herbert L. Mason 1938-5-6 11767 Monterey outside of Jolon (at the junction to Indian Road); Santa Lucia Park Comment
  UC525844  Eriophyllum staechadifolium Herbert L. Mason 1933-10-1 E 144 Monterey nr summit of road on e margin Redwood Forest; Santa Lucia Mountains, Palo Colorado Canyon 457 Comment
  UC566821  Bowlesia incana H. L. Mason 1929-3-1 5021 Monterey 25 mi up Carmel River, on Jamesburg-Arroyo Seco Road Carmel River; , Jamesburg-Arroyo Seco Road Comment
  UC570792  Chamaesyce serpillifolia subsp. hirtula H. L. Mason 1930-10-25 5789 Monterey between Jolon and Santa Lucia Rnger Staion (along the San Antonio River); foothills of the Santa Lucia Mtns Comment
  UC635705  Samolus parviflorus H. L. Mason September 1930 5904 Monterey Elkhorn Slough between Watsonville and Castroville; Elkhorn Slough Comment
  UC912303  Verbena lasiostachys var. lasiostachys H. L. Mason 1934-9-8 8149 Monterey near The Indians; Santa Lucia Mts 609 Comment
  UC912331  Deinandra lobbii Herbert L. Mason 1930-10-25 5778 Monterey foothills between Jolon and Santa Lucia Ranger Station along San Antonio River; Santa Lucia Mountains Comment
  CAS-BOT-BC108192  Salix hindsiana H. L. Mason 1926-3-14 2719 Napa Along stream in grove, Mount St. Helena Comment
  CAS-BOT-BC144386  Garrya fremontii H. L. Mason 1925-1-22 1201 Napa Wooden Valley Grade Comment
  POM310952  Linanthus dichotomus subsp. meridianus H. L. Mason 1942-5-24 12540 Napa Eight miles south of Pope Valley Store Comment
  SEINET197690  Linanthus dichotomus subsp. meridianus Herbert L. Mason 1942-5-24 12540 Napa Eight miles s. of Pope Valley Store. Comment
  UC1076281  Cupressus sargentii H. L. Mason 1926-1-2 2606 Napa Toll House Canyon Mt. St. Helena Comment
  UC1178880  Kickxia elatine Herbert L. Mason 1942-9-29 12557 Napa 2 mi n Calistoga (bed of Napa River); Napa River Comment
  UC1178884  Reseda luteola Herbert L. Mason 1942-9-29 12558 Napa 2 mi n of Calistoga (Napa River); Napa River Comment
  UC545816  Nemacladus montanus Herbert L. Mason 1935-5-30 10000 Napa 4 mi n Knoxville Mines Comment
  UC571226  Arctostaphylos stanfordiana H. L. Mason 1926-1-2 2611 Napa Toll House Canyon Mount St. Helena Comment
  UC635346  Delphinium patens H. L. Mason 1928-4-13 4330 Napa hills between Santa Rosa and Calistoga Comment
  UC635357  Delphinium nudicaule H. L. Mason 1926-3-14 2723 Napa Mount Saint Helena Comment
  UC635607  Eschscholzia lobbii H. L. Mason 1926-3-27 2799 Napa road between Gordon Valley and Wooden Valley Comment
  UC689684  Linanthus dichotomus Herbert L. Mason 1942-5-24 12540 Napa 3 mi s Pope Valley Store Comment
  UC908083  Navarretia tagetina Herbert L. Mason 1934-4-30 8110 Napa tributary of Putah Creek Pope Valley, Putah Creek Comment
  UC908451  Gilia tricolor subsp. tricolor Herbert L. Mason 1933-4-30 7224 Napa n Aetna Springs (near Napa-Lake County line); n of Aetna Springs Comment
  UC936193  Pleuropogon californicus H. L. Mason 1931-4-12 5833 Napa grounds s of Napa State Hospital Comment
  UC1076280  Cupressus macnabiana H. L. Mason 1924-1-23 1208 Napa Pope Canyon Comment
  UC1111581  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1935-5-30 2837 Napa just s Napa State Hospital Comment
  UC1191154  Trichostema laxum Herbert L. Mason 1936-9-19 11540 Napa St. Helena Creek Comment
  UC555460  Trifolium microcephalum H. L. Mason 1928-4-13 4340 Napa near spring (Reili School) Comment
  UC570869  Lithophragma heterophyllum Herbert L. Mason 1926-3-14 2721 Napa Old Toll road sw side Mt. St. Helena; sw side of Mt. St. Helena Comment
  UC639128  Phoradendron densum H. L. Mason and L. Constance 1939-12-21 Napa on shoulder of Mt. St. Helena (on Middletown-Calistoga rd. at Lake Co. line) Comment
  UC672213  Pseudognaphalium stramineum H. L. Mason 1923-10-6 769 Napa along railroad Suisan Marsh Comment
  UC673417  Draba verna Herbert L. Mason 1926-3-14 2739 Napa Mt. St. Helena Comment
  UC908736  Collomia heterophylla Herbert L. Mason 1926-3-21 2782 Napa near summit of road Mt. St. Helena Comment
  UC908955  Linanthus parviflorus Herbert L. Mason 1928-4-13 4332 Napa between Santa Rosa and Calistoga Comment
  UC912476  Chorizanthe membranacea H. L. Mason 1934-4-30 8104 Napa 5 mi s Monticello (tributary of Putah Creek); tributary of Putah Creek Comment
  UCD126389  Nemacladus montanus Herbert L. Mason 1935-5-30 s.n. Napa 4 miles north of Knoxville Mines. Comment
  UCD137456  Cheilanthes gracillima Herbert L. Mason 1936-3-14 2736 Napa Mt. St. Helena. Comment
  CAS-BOT-BC117727  Carex simulata Herbert L. Mason 1952-8-16 14479 Nevada Meadow opposite Univ of CA Trout Laboratory. Sage Hen Creek. 1981 Comment
  CAS-BOT-BC167814  Polygala cornuta var. cornuta H. L. Mason 1926-5-29 3288 Nevada Donner Pass Road near Alta Comment
  CAS-BOT-BC34434  Carex davyi Herbert L. Mason 1952-7-11 14325 Nevada Sierra Nevada. Sage Hen Creek. Head of meadow one mile west of University of California Trout Laboratory. 1981 Comment
  SEINET7294095 Image available Poa secunda subsp. secunda Herbert L. Mason 1952-1 14435 Nevada Sage Hen Creek; Meadow opposite University of California Trout Laboratory. 1981 Comment
  UC1093964  Streptanthus tortuosus var. orbiculatus Herbert L. Mason Jul 7 1939-Jul 8 1939 12158 Nevada three mi w Donner Summit; Sierra Nevada 2072 Comment
  UC1106320  Epilobium hallianum Herbert L. Mason, B. Fuller, and H. Whisler 1958-7-13 13 Nevada one mi w University of California Trout Laboratory (12 miles north of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1106321  Juncus nevadensis Herbert L. Mason, B. Fuller, and H. Whisler 1958-7-22 17 Nevada 1 mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1106326  Eriophorum gracile Herbert L. Mason, B. Fuller, and H. Whisler 1958-7-13 24 Nevada 1 mi. w. U.C. Trout Lab. (12 mi. n. of Truckee, Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1112282  Myosurus apetalus Herbert L. Mason 1952-7-10 14310 Nevada Sage Hen Creek Sierra Nevada (1 mi w of University of California Trout Laboratory) 1981 Comment
  UC1177529  Veronica americana Herbert L. Mason, B. Fuller, H. Whisler 1958-7-13 26 Nevada 1 mi w of University of California Trout Laboratory (12 mi n of Truckee, Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1177536  Perideridia parishii subsp. latifolia Herbert L. Mason, B. Fuller, and H. Whisler 1958-7-23 45 Nevada one mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1179057  Delphinium Herbert L. Mason Jul 7 1939-Jul 8 1939 12147 Nevada 3 mi w Donner Summit 2072 Comment
  UC1191872  Castilleja miniata Herbert L. Mason 1952-7-18 14399 Nevada 1 mi w Univ. of Calif. Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC672146  Calochortus nudus Herbert L. Mason 1926-5-29 3297 Nevada 3 mi w Cisco 1767 Comment
  UC963801  Navarretia capillaris Herbert L. Mason Jul 7 1939-Jul 8 1939 12156 Nevada three mi w Donner Summit; w of Donner Summit 2072 Comment
  UC965489  Agrostis scabra Herbert L. Mason 1952-8-16 1448 a Nevada meadow opposite Univ. of Calif. Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965492  Deschampsia cespitosa subsp. cespitosa Herbert L. Mason 1952-8-16 14490 Nevada meadow opposite University of CA Trout Lab. University of CA Trout Lab. (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965494  Scirpus microcarpus Herbert L. Mason 1952-8-16 14471 Nevada meadow opposite University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965500  Deschampsia cespitosa subsp. cespitosa Herbert L. Mason 1952-7-19 14420 Nevada meadow opposite University of CA Trout Lab. University of CA Trout Lab. (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965507  Deschampsia elongata Herbert L. Mason 1952-8-16 14468 Nevada meadow opposite U.C. Trout Lab. (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965509  Tofieldia occidentalis subsp. occidentalis Herbert L. Mason 1952-8-16 14466 Nevada meadow opposite University of California Trout Laboratory, Sage Hen Creek Sierra Nevada Comment
  UC965511  Ranunculus orthorhynchus var. orthorhynchus Herbert L. Mason 1952-7-11 14335 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965518  Neoholmgrenia andina Herbert L. Mason 1952-7-11 14333 Nevada one mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965531  Navarretia divaricata Herbert L. Mason 1952-8-16 14463 Nevada opposite Univ. of Calif. Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965548  Osmorhiza occidentalis Herbert L. Mason 1952-7-19 14427 Nevada meadow opposite University of California Trout Laboratory; Sage Hen Creek 1981 Comment
  UC965566  Hackelia californica Herbert L. Mason 1952-7-18 14392 Nevada Sage Hen Creek; Sierra Nevada 2133 Comment
  UC965570  Symphyotrichum spathulatum Herbert L. Mason 1952-8-16 14474 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965573  Nemophila spatulata Herbert L. Mason 1952-7-16 14363 Nevada one mi w University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, , w of UC Trout Laboratory 1981 Comment
  UC965575  Plagiobothrys hispidulus Herbert L. Mason 1952-7-16 14364 Nevada one mi w University of California Trout Laboratory (peat meadow back of stream); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965577  Galium bifolium Herbert L. Mason 1952-7-18 14397 Nevada upstream University of California Trout Laboratory; Sierra Nevada, Sagehen Creek 1981 Comment
  UC965579  Cirsium scariosum var. americanum Herbert L. Mason 1952-7-11 14334 Nevada one mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965591  Chenopodium atrovirens Herbert L. Mason 1952-7-16 14370 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965598  Carex microptera Herbert L. Mason 1952-7-19 14421 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965602  Carex aurea Herbert L. Mason 1952-7-16 14342 Nevada 1 mi w University of California Trout Laboratory (adjacent to stream which arises from large spring in meadow); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965604  Carex capitata Herbert L. Mason 1952-8-16 14480 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965621  Montia chamissoi Herbert L. Mason 1952-7-10 14319 Nevada 1 mi w of University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada , Sage Hen Creek 1981 Comment
  UC965636  Rumex salicifolius var. salicifolius Herbert L. Mason 1952-7-18 14395 Nevada upstream Univ. of Calif Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965653  Luzula cascadensis Herbert L. Mason 1952-7-18 14398 Nevada Upstream from University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, , Univ of California Trout Labo 1981 Comment
  UC965655  Juncus mexicanus Herbert L. Mason 1952-7-19 14436 Nevada opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  CAS-BOT-BC392262  Myosurus apetalus Herbert L. Mason 1952-7-10 14310 Nevada Sierra Nevada. One mile west of University of California Trout Laboratory. Sage Hen Creek 1981 Comment
  POM285053  Ranunculus occidentalis var. ultramontanus H. L. Mason 1952-7-16 14353 Nevada Sage Hen Creek, 1 mile W of University of California Trout Laboratory. 1982 Comment
  POM310940  Gayophytum racemosum H. L. Mason 1952-7-11 14333 Nevada Sage Hen Creek, Old drained sphagnum bog in meadow 1 mile W of University of California Trout Laboratory. 1982 Comment
  RSA97621  Carex utriculata H. L. Mason 1952-8-16 14483 Nevada Meadow opposite University of California Trout Laboratory. Sage Hen Creek. 1982 Comment
  SEINET11602222 Image available Oreostemma alpigenum var. andersonii H. L. Mason 1952-7-11 14322 Nevada Bog at head of meadow one mile west of University of California Trout Laboratory, Sage Hen Creek 1981 Comment
  UC566888  Sanicula tuberosa Herbert L. Mason 1926-5-29 3293 Nevada 3 mi w of Cisco (Crystal Lake); Crystal Lake 1767 Comment
  UC1093919  Deinandra fasciculata Herbert L. Mason 1926-4-25 2932 Orange 5 mi s Laguna Comment
  UC570789  Chamaesyce polycarpa H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Comment
  UC571125  Oxalis albicans subsp. californica Herbert L. Mason 1926-4-25 2927 Orange 5 mi s Laguna Comment
  UC592180  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Beach Comment
  UC634679  Oligomeris linifolia Herbert L. Mason 1926-4-25 2905 Orange 5 mi s Laguna (above sea) Comment
  UC672256  Isocoma menziesii var. vernonioides H. L. Mason 1926-4-25 2906 Orange 5 mi s Laguna Comment
  UC673435  Castilleja exserta subsp. exserta Herbert L. Mason 1926-4-25 2935 Orange 5 mi s Laguna Comment
  UC912305  Heterotheca grandiflora Herbert L. Mason 1926-4-25 2901 Orange 5 mi s Laguna Comment
  UC912573  Osmadenia tenella Herbert L. Mason 1926-4-25 2903 Orange 5 mi n of Laguna Comment
  SEINET893157  Abronia umbellata Charles T. Mason Jr. 1943-1 108 Orange Along Coast Highway 101, one miles southeast of Huntington Beach. Comment
  SFV16520  Vicia benghalensis S. Mason, P. Rector 1993-4-16 9 Orange Santa Ana Mountains CA State Highway 74 at Lower San Juan Campground. Adjacent to campground sign on southeast side of road. 396 Comment
  CAS-BOT-BC163589  Clarkia biloba subsp. biloba H. L. Mason 1926-5-28 3270 Placer Five miles above Auburn Comment
  UC1076267  Madia glomerata Herbert L. Mason 1932-9-9 7176 Placer Cisco Comment
  UC1191176  Ligusticum grayi Herbert L. Mason 1939-8-3 12201 Placer 7 mi. n.w. Tahoe City (Squaw Valley); Squaw Valley 1889 Comment
  UC1191221  Erigeron coulteri Herbert L. Mason 1939-8-3 12204 Placer n of Lake Tahoe (Squaw Creek Valley); Squaw Creek Valley 1889 Comment
  UC565457  Scutellaria californica Herbert L. Mason 1929-10-4 5458 Placer 1 mi above Cisco Comment
  UC566896  Tauschia hartwegii H. L. Mason 1926-5-28 3266 Placer hills near Auburn (Auburn) Comment
  UC629707  Rhamnus alnifolia H. L. Mason 1939-8-3 12200 Placer 7 mi nw Tahoe City; Squaw Valley 1889 Comment
  UC634574  Ceanothus tomentosus Herbert L. Mason 1926-5-29 3286 Placer Donner Pass Road near Alta; Donner Pass Road near Alta Comment
  UC634698  Clarkia biloba H. L. Mason 1926-5-28 3270 Placer 5 mi above Auburn Comment
  UCD48609  Navarretia intertexta subsp. propinqua Herbert L. Mason 1940-8-3 12203 Placer Squaw Creek Valley, north of Lake Tahoe, Placer County, California. 1889 Comment
  UC634986  Ranunculus alismifolius var. alismifolius H. L. Mason 1933-5-28 7238 Placer Lower Truckee River Comment
  CAS-BOT-BC240350  Utricularia intermedia H. L. Mason 1924-6-26 1090 Plumas Graeagle near Blairsden Comment
  CAS-BOT-BC361776  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-7-17 14390 Plumas Sierra Nevada. Beckwourth. Sierra Valley 1524 Comment
  CAS-BOT-BC63335  Ceanothus prostratus Herbert L. Mason 1924-6-16 1046 Plumas Graeagle. Comment
  UC565593  Penstemon deustus Herbert L. Mason 1924-6-15 1032 Plumas Gold Lake Comment
  UC565599  Penstemon rydbergii var. oreocharis Herbert L. Mason 1926-6-19 1085 Plumas Gold Lake Comment
  UC570927  Saxifraga oregana Herbert L. Mason 1926-6-18 1047 Plumas n of Graeagle Comment
  UC634641  Garrya fremontii H. L. Mason 1924-6-18 1053 Plumas road between Graeagle and Gold Lake Comment
  UC635274  Taraxia tanacetifolia H. L. Mason 1924-6-15 1037 Plumas Graeagle Comment
  UC635611  Eschscholzia californica H. L. Mason 1924-6-15 1034 Plumas Graeagle Comment
  UC963762  Navarretia divaricata Herbert L. Mason 1924-6-18 1062 Plumas near Gold Lake Comment
  UC965538  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1952-7-17 14388 Plumas Beckwourth Sierra Valley 1524 Comment
  CAS-BOT-BC392264  Myosurus apetalus Herbert L. Mason 1953-6-16 14554 Plumas Two miles east of Beckwourth Comment
  CAS-BOT-BC392265  Myosurus apetalus Herbert L. Mason 1952-7-17 14381 Plumas Sierra Nevada. Along Western Pacific tracks just south of Beckwourth. Sierra Valley 1524 Comment
  CAS-BOT-BC527294  Lemna trisulca Herbert L. Mason 1955-7-30 14638 Plumas Near Chester Comment
  CAS-BOT-BC527312  Lemna trisulca Herbert L. Mason 1955-7-30 14638 Plumas Near Chester Comment
  CAS-BOT-BC534892  Spirodela polyrhiza Herbert L. Mason 1953-7-8 14561 Plumas Four miles northwest of Loyalton Comment
  JEPS58436  Linanthus harknessii Herbert L. Mason 1924-6-20 1084 Plumas between Gold Lake Bear Lake Comment
  RSA312422  Myosurus aristatus H. L. Mason 1953-7-8 14559 Plumas 1/2 as long as claw, 6 miles SE of Beckwourth on road from Beckwourth to Loyalton across valley Comment
  UC1093684  Cryptogramma acrostichoides Herbert L. Mason 1926-7-12 2894 Plumas Mt Elwell Comment
  UC1101361  Myosurus apetalus Herbert L. Mason 1953-7-8 14559 Plumas 6 mi se Beckwourth (on road from; to Loyalton across valley) Comment
  UC2035859  Monardella odoratissima subsp. glauca H. L. Mason 1924-6-16 1043 Plumas South banks of Feather River, near Graeagle. Comment
  UC566874  Lomatium nudicaule H. L. Mason 1924-6-16 1040 Plumas s. bank of Feather R. near Graeagle; Feather River Comment
  UC570692  Solanum umbelliferum Herbert L. Mason 1924-6-19 1066 Plumas slide just west of Gold Lake Comment
  UC634528  Eriogonum spergulinum var. reddingianum Herbert L. Mason 1924-6-20 1080 Plumas between Gold Lake and Bear Lake Comment
  UC908728  Collomia tinctoria Herbert L. Mason 1924-6-18 1061 Plumas on road to Gold Lake from Graeagle 1 mi from Gold Lake Comment
  UC965552  Epilobium densiflorum Herbert L. Mason 1952-7-17 14380 Plumas along Western Pacific tracks just s Beckwourth; Sierra Valley 1524 Comment
  CAS-BOT-BC91875  Platystemon californicus H. L. Mason 1926-4-30 3134 Riverside Two miles south of Temecula. Comment
  JEPS16749  Mimulus aurantiacus var. pubescens Herbert L. Mason 1926-5-2 3190 Riverside Aguanga Valley Comment
  POM257261  Camissonia claviformis subsp. aurantiaca H. L. Mason 1928-3-11 4242 Riverside Desert flats near Indio. Comment
  SEINET200238 Image available Logfia arizonica Herbert L. Mason 1952-1 14208 Riverside Palm Canyon near Palm Springs Comment
  SEINET244006 Image available Logfia filaginoides Herbert L. Mason 1952-1 14208 Riverside Palm Canyon near Palm Springs Comment
  UC1051483  Stylocline gnaphaloides Herbert L. Mason 1952-4-7 14208 Riverside Palm Canyon Palm Springs Comment
  UC1076210  Atriplex hymenelytra Herbert L. Mason 1928-3-10 4207 Riverside Hidden Springs Canyon Coachella Mountains, Hidden Springs Canyon Comment
  UC1083106  Lycium Herbert L. Mason 1928-3-10 4215 Riverside Hidden Springs Canyon Coachella Mts. Comment
  UC1111008  Plantago patagonica Herbert L. Mason 1928-3-10 4175 Riverside Snow Creek Colorado Desert, Whitewater River Valley Comment
  UC1199819  Alnus rhombifolia Herbert L. Mason 1928-3-10 4174 Riverside Snow Creek-White Water River Valley Colorado Desert Comment
  UC555386  Caesalpinia virgata H. L. Mason 1928-3-10 Riverside Coachella Mts., Hidden Springs Canyon Comment
  UC555406  Lotus rigidus H. L. Mason 1928-3-11 4240 Riverside near Indio Comment
  UC555538  Lotus argophyllus H. L. Mason 1926-4-30 3116 Riverside 1 mi s Temecula; Temecula Canyon Comment
  UC566728  Trichoptilium incisum H. L. Mason 1928-3-10 4210 Riverside Hidden Springs Canyon Coachella Mts. Comment
  UC570880  Jepsonia parryi Herbert L. Mason 1926-5-1 3199 Riverside Temecula Valley Comment
  UC634677  Oligomeris linifolia H. L. Mason 1928-3-10 4179 Riverside in alkaline spots along Whitewater River; along Whitewater River Comment
  UC634998  Eriogonum pusillum H. L. Mason 1928-3-10 4186 Riverside White Water River Comment
  UC635281  Chylismia claviformis subsp. aurantiaca H. L. Mason 1928-3-10 4182 Riverside Whitewater River Comment
  UC635388  Chylismia cardiophylla subsp. cardiophylla H. L. Mason 1928-3-10 4205 Riverside Hidden Springs Coachella Mountains Comment
  UC635401  Camissoniopsis pallida subsp. pallida H. L. Mason 1928-3-10 4234 Riverside near Indio Comment
  UC635609  Eschscholzia parishii H. L. Mason 1928-3-10 4191 Riverside Whitewater River Comment
  UC640586  Silene laciniata subsp. major H. L. Mason 1926-5-2 3202 Riverside Temecula Valley Comment
  UC672399  Phacelia cicutaria var. hispida Herbert L. Mason 1926-4-30 3136 Riverside 2 mi s Temecula Comment
  UC672455  Mimulus brevipes H. L. Mason 1926-4-30 3121 Riverside Temecula to Pala (Pala Grade); Temescal Canyon Comment
  UC673536  Mohavea confertiflora H. L. Mason 1928-3-10 4246 Riverside Road from Indio to Palm Springs Comment
  UC908023  Gilia ochroleuca subsp. exilis Herbert L. Mason 1926-4-30 3112 Riverside 1 mi s Temecula; Temecula Canyon, s of Temecula Comment
  UC908859  Gilia stellata Herbert L. Mason 1928-3-11 4249 Riverside along road between Indio and Palm Springs (Colorado Desert); , btw Indio and Palm Springs Comment
  UC909105  Loeseliastrum schottii Herbert L. Mason 1928-3-11 4254 Riverside Palm Springs Comment
  UC912231  Ambrosia salsola var. salsola Herbert L. Mason 1928-3-10 4229 Riverside Hidden Springs Canyon Coachella Mountains Comment
  UC912655  Pleuraphis rigida H. L. Mason 1928-3-10 4198 Riverside Whitewater River Comment
  UC1100745  Eleocharis macrostachya Herbert L. Mason 1949-4-25 14018 Sacramento Alder Creek Reservoir Comment
  UC665658  Thysanocarpus radians Herbert L. Mason 1934-3-25 7933 Sacramento Rio Linda Sacramento Valley, Rio Linda (Keithley Ranch) 30 Comment
  UC769968  Lomatium caruifolium var. denticulatum Herbert L. Mason 1934-3-25 7944 Sacramento Rio Linda, Keithly ranch Sacramento Valley, Rio Linda, Keithly ranch Comment
  UC769972  Veronica peregrina subsp. xalapensis Herbert L. Mason 1934-3-25 7956 Sacramento Sacramento Valley, Rio Linda, Keithly Ranch Rio Linda; Sacramento Valley, , Keithly Ranch Comment
  UC769974  Cicendia quadrangularis Herbert L. Mason 1934-3-25 7958 Sacramento Rio Linda Sacramento Valley (Keithly ranch) Comment
  UC769981  Vulpia bromoides Herbert L. Mason 1934-3-25 7972 Sacramento Rio Linda Sacramento Valley (Keithly ranch) Comment
  UC769996  Callitriche marginata Herbert L. Mason 1934-3-25 7941 Sacramento Keithly ranch, Rio Linda Sacramento Valley Comment
  UC770000  Dichelostemma capitatum Herbert L. Mason 1934-3-25 7952 Sacramento Keithly ranch, Rio Linda Sacramento Valley, Rio Linda Comment
  POM199432  Sidalcea hartwegii H. L. Mason 1932-4-24 s.n. Sacramento Near base of Pilot Hill about 11 miles E of Folsom Comment
  SEINET4183112 Image available Briza minor Herbert L. Mason 1934-3-25 7931 Sacramento Keithly ranch, Rio Landa, Sacramento County. Comment
  CAS-BOT-BC248756  Eriogonum argillosum Herbert L. Mason 1930-3-30 s.n. San Benito Canyon of the San Benito River, 14 miles south of Hollister Comment
  CAS-BOT-BC64146  Ancistrocarphus filagineus Herbert L. Mason 1952-4-27 14286 San Benito About 3 miles from mouth of San Carlos Canyon Comment
  RSA114062  Convolvulus simulans H. L. Mason 1952-4-27 14282 San Benito About 3 miles from mouth of San Carlos Canyon Comment
  UC1051489  Convolvulus simulans Herbert L. Mason 1952-4-27 14282 San Benito San Carlos Canyon Comment
  UC1051498  Streptanthus insignis Herbert L. Mason 1952-4-27 14278 San Benito San Carlos Canyon Comment
  UC1060647  Ancistrocarphus filagineus Herbert L. Mason 1957-5-11 14697 San Benito 2-3 mi e Hernandez Comment
  UC1060674  Linanthus liniflorus Herbert L. Mason 1957-5-11 14699 San Benito 2-3 mi e Hernandez Comment
Read comments
Apr 14 2020
  UC1191209  Pectocarya setosa Herbert L. Mason 1952-4-27 14279 San Benito San Carlos Canyon Comment
  UC1250319  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1957-5-11 14738 San Benito Clear Creek Canyon 4.5 mi from Hernandez; South Coast Ranges, Clear Creek Canyon Comment
  UC570842  Ribes aureum var. gracillimum H. L. Mason 1930-4-21 5605 San Benito nw Priest Valley (near summit of grade); Lewis Creek Grade Comment
  UC673433  Triphysaria micrantha H. L. Mason 1930-4-21 5602 San Benito Priest Valley Comment
  UC908573  Allophyllum gilioides subsp. gilioides Herbert L. Mason 1930-3-30 5527 San Benito Pinnacles Comment
  RSA0076521  Acanthomintha lanceolata H. L. Mason 1940-5-5 12284 San Benito Panoche Pass ca. 6 miles southeast of Pacines and 2.4 miles east of Emmet School, San Carlos Range. 610 Comment
  CAS-BOT-BC258294  Eriogonum reniforme H. L. Mason 1926-4-28 3097 San Bernardino Box S Ranch, Mojave Desert Comment
  SD46097  Eschscholzia glyptosperma Herbert L. Mason 1952-4-9 14233 San Bernardino 10 miles south of Needles. Comment
  SD46100  Phacelia rotundifolia Herbert L. Mason 1954-4-11 14254 San Bernardino Black Lavas north of Pisgah Crater, in crevices of lava. Comment
  SD46110  Nama depressa Herbert L. Mason 1952-4-11 14251 San Bernardino Black Lava Bed just east of Dagget. Comment
  SEINET3815125 Image available Nemacladus ramosissimus Herbert L. Mason 1935-4-30 8281 b San Bernardino Poison Canyon Comment
  UC1039638  Brickellia atractyloides Herbert L. Mason 1935-4-30 8284 San Bernardino sw of Trona; Poison Canyon Comment
  UC1050460  Geraea canescens Herbert L. Mason 1952-4-9 14229 San Bernardino ten mi s Needles Comment
  UC1051458  Prosopis glandulosa var. torreyana Herbert L. Mason 1952-4-9 14225 San Bernardino 25 mi s Needles (on road from Blythe to Needles) Comment
  UC1051464  Mimulus bigelovii var. bigelovii Herbert L. Mason 1952-4-9 14235 San Bernardino s Needles; Sawtooth Range Comment
  UC1051466  Dalea mollissima Herbert L. Mason 1952-4-9 14238 San Bernardino s. of Needles; Sawtooth Range Comment
  UC1051478  Gilia stellata Herbert L. Mason 1952-4-11 14257 San Bernardino Black lavas n Pisgah Crater; Black lavas n of Pisgah Crater Comment
  UC1056303  Logfia depressa H. L. Mason 1935-4-30 8289 San Bernardino Searles Lake; Poison Canyon Comment
  UC1081504  Castilleja angustifolia H. L. Mason 1926-4-28 3087 San Bernardino Box S Ranch Comment
  UC1179025  Tamarix ramosissima Herbert L. Mason 1952-4-9 14226 San Bernardino 25 mi s Needles (on road from Blythe to Needles) Comment
  UC1179026  Nemacladus rubescens Herbert L. Mason 1935-4-30 8281 c San Bernardino Head of Poison Canyon Comment
  UC1186141  Gilia aliquanta Herbert L. Mason 1935-3-28 8183 San Bernardino Stoddard Wells; Mojave Desert Comment
  UC565625  Chaenactis fremontii H. L. Mason 1926-4-27 3061 San Bernardino 30 mi w of Victorville Comment
  UC566661  Senecio flaccidus var. monoensis H. L. Mason 1925-4-25 3068 San Bernardino Box S Springs Comment
  UC570834  Ribes cereum Herbert L. Mason 1927-6-15 3779 San Bernardino Mount San Antonio, higher ridges San Gabriel Mts. 2590 Comment
  UC581146  Logfia depressa H. L. Mason 1935-3-23 8196 San Bernardino 12 mi w Barstow; Mojave Desert Comment
  UC581150  Thamnosma montana H. L. Mason 1935-3-28 8173 San Bernardino 3 mi s of Barstow (Mojave Desert); Mojave Desert Comment
  UC581157  Brickellia atractyloides H. L. Mason 1935-3-29 8221 San Bernardino w of Searles Lake; Poison Canyon, Mojave Desert Comment
  UC635082  Eriogonum maculatum Herbert L. Mason 1926-4-28 3080 San Bernardino Box S Springs Mohave Desert, Box S Springs Comment
  UC635255  Allium burlewii Herbert L. Mason 1927-6-15 3770 San Bernardino on summit of ridges about Mt. Baldy San Gabriel Mts., Baldy 2438 Comment
  UC635296  Astragalus didymocarpus var. dispermus H. L. Mason 1926-4-27 3075 San Bernardino near Victorville (Mojave Desert); , near Victorville Comment
  UC635419  Ranunculus cymbalaria var. saximontanus H. L. Mason 1926-4-28 3091 San Bernardino Box S Ranch; in springs Comment
  UC672404  Phacelia crenulata var. ambigua Herbert L. Mason 1926-4-28 3104 San Bernardino Box S Ranch, Mohave Desert Comment
  UC672629  Pellaea mucronata var. californica Herbert L. Mason 1927-6-15 3778 San Bernardino Mt Baldy; San Gabriel Mts 2590 Comment
  UC908132  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1935-3-28 8192 San Bernardino Taylor Spring , n of Lucerne Valley, Taylor Spring (Mohave Desert) Comment
  UC908142  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1935-3-28 8184 San Bernardino Stoddard Wells Mohave Desert, Stoddard Wells Comment
  UC908444  Linanthus parryae Herbert L. Mason 1935-3-28 8191 San Bernardino S of Barstow (near Stoddard Wells, Taylor Springs, N of Lucerne Valley); Mohave Desert Comment
  UC908655  Linanthus arenicola Herbert L. Mason 1938-4-15 11726 San Bernardino sw of Trona; Poison Canyon Comment
  UC908821  Gilia latiflora subsp. latiflora Herbert L. Mason 1935-3-29 8195 San Bernardino twelve mi w Barstow (Mohave Desert); Mohave Desert Comment
  UC908846  Gilia cana subsp. bernardina Herbert L. Mason 1926-4-27 3076 San Bernardino se Lucerne Post Office (Box S Ranch, Mohave Desert); Mohave Desert, Box S Ranch Comment
  UC909131  Loeseliastrum matthewsii Herbert L. Mason 1926-4-27 3071 San Bernardino n. Victorville Comment
  UC963784  Linanthus concinnus Herbert L. Mason 1927-6-15 3775 San Bernardino trail to summit of Mount Baldy (Mount San Antonio) San Gabriel Mountains, Mount Baldy (Mount San Antonio) 2590 Comment
  CAS-BOT-BC323011  Stylocline masonii H. L. Mason 1935-3-28 8199 San Bernardino West of Barstow, Mojave Desert Comment
  CAS-BOT-BC407838  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1935-3-29 8215 San Bernardino Mohave Desert, 3 miles N of Johannesburg on road to Searles Lake Comment
  CAS-BOT-BC423164  Cleomella obtusifolia H. L. Mason 1935-3-29 8234 San Bernardino West side of Searles Lake, Mojave Desert. Comment
  SEINET10461043  Nemacladus ramosissimus Mason 1935-4-30 Mason 8281 b San Bernardino Poison Canyon Comment
  SEINET10972550  Nemacladus sigmoideus Mason 1935-4-30 Mason 8281 San Bernardino Poison Canyon Comment
  UC581174  Logfia depressa H. L. Mason 1935-3-29 8235 San Bernardino six mi s Trona (w side of lake); Mohave Desert, Searles Lake Comment
  UC581181  Stylocline psilocarphoides H. L. Mason 1935-3-29 8214 San Bernardino between Johannesburg and Searles Lake; Mojave Desert Comment
  UC908432  Gilia malior Herbert L. Mason 1935-3-28 8201 San Bernardino two mi n Kramer Junction (Mohave Desert); , n of Kramer Junction Comment
  UC908480  Gilia ochroleuca subsp. ochroleuca Herbert L. Mason 1935-3-29 8215 San Bernardino three mi n Johannesburg (on road to Searles Lake, Mohave Desert); Mohave Desert, n of Johannesburg Comment
  UC908509  Gilia cana subsp. speciosa Herbert L. Mason 1935-3-29 8212 San Bernardino Red Rock Canyon; Mohave Desert Comment
  UC908888  Gilia leptantha subsp. transversa Herbert L. Mason 1926-4-28 3109 San Bernardino Cajon Pass Comment
  CAS-BOT-BC257216  Chorizanthe procumbens H. L. Mason 1936-4-30 3129 San Diego Tenescal [Temescal] Canyon along Pala Grade toward Palomar Mountain Comment
  CAS-BOT-BC53130  Ceanothus perplexans Herbert L. Mason; Peirson; Munz 1926-4-30 3161 San Diego Palomar Mt. Comment
  CAS-BOT-BC53131  Ceanothus perplexans Herbert L. Mason; Peirson; Munz 1926-4-30 3173 San Diego Palomar Mt. Comment
  RSA257272  Camissonia bistorta H. L. Mason 1926-5-1 3186 San Diego [Unspecified] Comment
  RSA406181  Lotus heermannii H. L. Mason 1924-06 s.n. San Diego Fallbrook Comment
  UC555650  Cercocarpus betuloides var. betuloides H. L. Mason 1926-5-1 3157 San Diego Palomar Mountain Comment
  UC565543  Malacothrix clevelandii Herbert L. Mason 1926-5-1 3171 San Diego Palomar Mt. Comment
  UC570976  Ribes nevadense Herbert L. Mason 1926-5-1 3164 San Diego Sourdough Spring Palomar Mt. Comment
  UC672390  Phacelia parryi Herbert L. Mason 1926-4-30 3123 San Diego Pala Grade Palomar Mt. Comment
  UC673596  Lathyrus vestitus var. alefeldii Herbert L. Mason 1926-4-30 3117 a San Diego Temecula to Pala; Temecula Canyon, Pala Grade Comment
  UC963793  Linanthus dianthiflorus Herbert L. Mason 1926-5-1 3176 San Diego n side Palomar Mountain; Oak Grove Comment
  CAS-BOT-BC515018  Eriastrum sapphirinum subsp. dasyanthum Herbert L. Mason 1926-4-30 3122 San Diego Pala Grade, Temecula Canyon, Temecula to Pala Comment
  SEINET10458402  Nemacladus longiflorus Mason 1926-4-30 Mason 3145 San Diego Oak Grove 853 Comment
  SEINET10458405  Nemacladus longiflorus Mason 1926-4-30 Mason 3178 San Diego Oak Grove Comment
  CAS-BOT-BC101399  Corethrogyne filaginifolia Herbert L. Mason 1928-4-25 4365 San Francisco [Hunter's] Hunters Point Comment
  CAS-BOT-BC191568  Chorizanthe cuspidata var. cuspidata Herbert L. Mason 1926-4-18 2871 San Francisco San Francisco Comment
  JEPS47825  Dichondra donelliana H. L. Mason 1927-3-11 San Francisco Bernal Heights San Francisco Comment
  UC1039559  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1927-3-11 3651 San Francisco Bernal Heights San Francisco, Bernal Heights Comment
  UC1083154  Conicosia pugioniformis H. L. Mason 1924-10-19 1121 San Francisco Merced Lake. Comment
  UC1179037  Polygonum paronychia Herbert L. Mason 1926-4-18 2872 San Francisco San Francisco; sand dunes Comment
  UC1191122  Polygonum paronychia Herbert L. Mason 1924-10-19 1118 San Francisco Country Club Gate San Francisco, Merced Lake (in sand hills) Comment
  UC565472  Arabis blepharophylla Herbert L. Mason 1925-3-1 1271 San Francisco Bernal Heights San Francisco Comment
  UC566702  Stephanomeria elata Herbert L. Mason 1924-10-19 1126 San Francisco Merced Lake Comment
  UC566955  Armeria maritima subsp. californica Herbert L. Mason 1926-4-18 2867 San Francisco San Francisco Sand Dunes San Francisco Comment
  UC571176  Iris longipetala H. L. Mason 1925-3-1 1272 San Francisco Bernal Heights; San Francisco Comment
  UC634777  Lomatium caruifolium var. caruifolium H. L. Mason 1925-3-1 1262 San Francisco Bernal Heights Comment
  UC634779  Lomatium caruifolium var. caruifolium H. L. Mason 1928-4-17 4372 San Francisco Hunter's Point Comment
  UC635045  Pterostegia drymarioides H. L. Mason 1926-4-18 2864 San Francisco along coast San Francisco Comment
  UC635124  Agoseris apargioides var. apargioides H. L. Mason 1926-4-18 2878 San Francisco near San Francisco Comment
  UC635259  Allium dichlamydeum H. L. Mason 1928-4-25 4378 San Francisco Hunter's Point Comment
  UC635581  Cardionema ramosissimum Herbert L. Mason 1926-4-18 2862 San Francisco San Francisco Comment
  UC635700  Dodecatheon clevelandii subsp. patulum H. L. Mason 1927-3-11 3651 a San Francisco Bernal Heights , Bernal Heights (San Francisco) Comment
  UC672299  Corethrogyne filaginifolia H. L. Mason 1928-4-25 4365 San Francisco Hunter's Point Comment
  UC672606  Myrica californica Herbert L. Mason 1924-10-19 1130 San Francisco Lake Merced Comment
  UC673359  Dodecatheon clevelandii subsp. patulum H. L. Mason 1927-3-11 3651 San Francisco Bernal Heights San Francisco, Bernal Heights Comment
  UC673430  Triphysaria eriantha subsp. rosea H. L. Mason 1925-3-1 1269 San Francisco Bernal Heights San Francisco; , Bernal Heights Comment
  CAS-BOT-BC384824  Cardionema ramosissimum H. L. Mason 1926-4-18 2862 San Francisco Unspecified Comment
  SEINET3399391 Image available Polygonum paronychia Herbert L. Mason 1926-4-18 2872 San Francisco Dunes, San Francisco Comment
  CAS-BOT-BC250991  Phragmites australis Herbert L. Mason 1946-9-12 13123 San Joaquin Borden Highway halfway between Old River - Middle River Comment
  CAS-BOT-BC400161  Ceratophyllum demersum H. L. Mason 1938-6-12 11851 San Joaquin Trapper Slough, Robert's Island, south-west of Holt Comment
  CAS-BOT-BC83364  Myosurus minimus H. L. Mason 1930-4-1 5548 San Joaquin Ten miles east of Stockton. Comment
  POM313128  Carex comosa H. L. Mason 1928-9-30 4957 San Joaquin San Joaquin Delta near Holt. Comment
  POM313148  Phragmites australis H. L. Mason, Verne Grant 1946-9-12 13123 San Joaquin Borden Highway halfway Old River- Middle River Comment
  UC1039509  Galium trifidum H. L. Mason 1928-9-30 4959 San Joaquin near Holt; San Joaquin Delta Comment
  UC1039795  Proboscidea lutea Herbert L. Mason 1929-9-9 5429 San Joaquin Holt; reclaimed delta lands Comment
  UC1076555  Chenopodium ambrosioides Herbert L. Mason 1928-9-30 4963 San Joaquin near Holt; San Joaquin delta Comment
  UC1100041  Potamogeton foliosus Herbert L. Mason, S. Galen Smith 1948-8-11 8319 San Joaquin Trapper's Slough; Robert's Island Comment
  UC1100460  Setaria pumila Herbert L. Mason 1946-9-12 13127 San Joaquin slough s. of main ditch, Borden Hwy., near Dagget Rd., Roberts Isl. Roberts Isl. Comment
  UC1100531  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-21 13056 San Joaquin between Banta and Stockton Comment
  UC1101164  Polygonum lapathifolium Herbert L. Mason 1928-9-30 4970 San Joaquin near Holt; Alkaline Grasslands of San Joaquin Valley, San Joaquin Del Comment
  UC1101178  Polygonum hydropiperoides Herbert L. Mason 1928-9-30 4971 San Joaquin near Holt; Alkaline Grasslands of San Joaquin Valley, San Joaquin Del Comment
  UC1106903  Potamogeton illinoensis Herbert L. Mason 1938-8-26 12073 San Joaquin Trappers Slough; Roberts Island Comment
  UC1178886  Myriophyllum hippuroides Herbert L. Mason 1938-8-26 12074 San Joaquin Trappers Slough, Roberts Island Comment
  UC1191637  Calystegia sepium subsp. binghamiae Herbert L. Mason, Verne Grant 1946-8-21 13067 San Joaquin Holt Holt (in tules) Comment
  UC570780  Callitriche heterophylla var. bolanderi H. L. Mason 1929-4-7 5202 San Joaquin 4 mi e Clements Comment
  UC571025  Pluchea odorata var. odorata H. L. Mason 1929-9-9 5419 San Joaquin Holt Comment
  UC573137  Amsinckia lycopsoides H. L. Mason 1932-3-19 6816 San Joaquin w of Tracy (road from Mountain House to Midway) Comment
  UC573149  Plagiobothrys stipitatus var. micranthus Herbert L. Mason 1928-5-3 4454 San Joaquin 4 mi n Clements Comment
  UC629711  Wolffiella lingulata H. L. Mason 1937-6-21 11548 San Joaquin 0.5 mi sw Holt, Roberts Island (Trappers Slough); Trappers Slough Comment
  UC632738  Elodea canadensis H. L. Mason 1939-6-9 12104 A San Joaquin about 9 mi se Stockton (at junction of Austin Road and Little John Creek) Comment
  UC635115  Phyla lanceolata H. L. Mason 1929-9-9 5428 San Joaquin San Joaquin River delta Holt; San Joaquin River delta Comment
  UC635119  Verbena hastata Herbert L. Mason 1929-9-9 5425 San Joaquin near Holt Comment
  UC635135  Wolffiella lingulata H. L. Mason 1937-6-21 11548 San Joaquin 0.5 mi sw Holt, Roberts Island (Trappers Slough); Trappers Slough Comment
  UC635679  Utricularia gibba Herbert L. Mason 1929-9-9 5420 San Joaquin marshes of Lower San Joaquin R. Lower San Joaquin R. Comment
  UC672468  Collinsia sparsiflora var. collina H. L. Mason 1929-4-7 5166 San Joaquin 10 mi e of Escalon Comment
  UC673521  Erysimum capitatum Herbert L. Mason 1932-3-19 6826 San Joaquin two mi e Midway Comment
  UC694151  Psilocarphus brevissimus var. brevissimus H. L. Mason 1932-4-24 6968 San Joaquin 11 mi s Clements Comment
  UC694158  Psilocarphus brevissimus var. brevissimus H. L. Mason 1932-4-24 6967 San Joaquin 11 mi s Clements Comment
  UC912579  Leersia oryzoides Herbert L. Mason 1928-9-30 4961 San Joaquin San Joaquin Delta near Holt; San Joaquin Delta Comment
  UC935735  Sagittaria montevidensis subsp. calycina Herbert L. Mason and Verne Grant 1946-9-12 13126 San Joaquin Roberts Island; Borden Highway near Dagget Road Comment
  POM312838  Eichhornia crassipes H. L. Mason, Verne Grant 1946-8-21 13063 San Joaquin West of Stockton on Borden Hwy; Marsh Plant Survey. Comment
  POM312910  Polygonum hydropiperoides H. L. Mason 1928-9-30 4971 San Joaquin San Joaquin Delta near Holt. Comment
  RSA312538  Polygonum punctatum H. L. Mason 1928-9-30 4969 San Joaquin San Joaquin Delta near Holt. Comment
  UCD138273  Potamogeton illinoensis Herbert L. Mason; Verne Grant 1946-8-21 13069 San Joaquin Trapper's Slough, southwest of Holt. Comment
  UC1076382  Arceuthobium campylopodum H. L. Mason 1923-6-21 525 San Luis Obispo Santa Margarita Comment
  UC1191347  Chenopodium macrospermum var. halophilum Herbert L. Mason 1946-6-9 12865 San Luis Obispo between Oceano and mouth of Santa Maria River; Dune Lakes Comment
  UC1191699  Glaux maritima Herbert L. Mason 1946-6-9 12875 San Luis Obispo between Oceano and mouth of Santa Maria River (Dune Lakes); Dune Lakes Comment
  UC581172  Stylocline gnaphaloides H. L. Mason 1935-3-31 8250 San Luis Obispo Cholame Valley Comment
  UC665612  Eriastrum densifolium subsp. densifolium Herbert L. Mason 1941-7-1 12466 San Luis Obispo mesa w Nipomo 106 Comment
  UC672201  Pseudognaphalium californicum H. L. Mason 1934-4-1 San Luis Obispo Cambria Pines, near Cambria; Cambria Pines Comment
  UC908354  Gilia clivorum Herbert L. Mason 1935-3-30 8248 San Luis Obispo Cholame Valley Comment
  CAS-BOT-BC52267  Ceanothus thyrsiflorus Herbert L. Mason 1934-4-1 s.n. San Luis Obispo Twenty miles North of Cambria Comment
  RSA0107369  Eriastrum densifolium subsp. densifolium H. L. Mason 1941-7-3 12474 San Luis Obispo Sand dunes, Oso Flaco Lake, north of mounth of the Santa Maria River. Comment
  SEINET190451  Navarretia atractyloides Herbert L. Mason 1941-7-1 12468 San Luis Obispo North end of Nipomo county 76 Comment
  SEINET4854777  Leptodactylon californicum subsp. tomentosum Herbert L. Mason 1941-3-28 12402 San Luis Obispo North end of Nipomo Mesa. 76 Comment
  UC1076263  Sambucus mexicana Herbert L. Mason 1929-10-12 5491 San Luis Obispo 8.4 mi from Atascadero Comment
  UC1083207  Arctostaphylos rudis Herbert L. Mason 1936-3-7 10995 San Luis Obispo 2 mi w Nipomo; Nipomo Mesa Comment
  UC1083221  Quercus agrifolia Herbert L. Mason 1929-10-13 5501 a San Luis Obispo 2.5 mi n Cambria Comment
  UC1083334  Pinus radiata Herbert L. Mason 1929-10-13 5502 San Luis Obispo 2 1/2 mi n Cambria Comment
  UC1093960  Oemleria cerasiformis Herbert L. Mason 1936-3-6 10987 San Luis Obispo 11 mi w San Luis Obispo (Pecho hills) Comment
  UC570960  Ribes speciosum Herbert L. Mason 1929-10-12 5485 San Luis Obispo 4.3 mi w Atascadero; Atascadero Creek Comment
  UC571023  Pseudognaphalium stramineum H. L. Mason 1934-3-31 8081 San Luis Obispo 6 mi n of Cambria Comment
  UC571165  Platanus racemosa H. L. Mason 1929-10-12 5484 San Luis Obispo 4.3 mi w Atascadero; Atascadero Creek Comment
  UC632875  Senecio californicus H. L. Mason 1936-3-6 10988 San Luis Obispo 11 mi w San Luis Obispo; Pecho Hills Comment
  UC634991  Eriogonum fasciculatum var. foliolosum Herbert L. Mason 1923-6-22 528 San Luis Obispo near San Luis Obispo; Camp Fremont Comment
  UC672599  Frankenia salina H. L. Mason 1929-10-13 5503 San Luis Obispo 2-1/3 mi n Cambria Comment
  UC702407  Wolffia columbiana Herbert L. Mason 1946-6-9 12864 San Luis Obispo Dune Lakes Comment
  UC907794  Navarretia atractyloides Herbert L. Mason 1923-1-14 380 San Luis Obispo between Paso Robles and San Luis Obispo Comment
  UC912266  Micropus californicus var. californicus Lucile Mason 1934-4-1 San Luis Obispo roadside from Cambria Templeton Comment
  UC912270  Hemizonia congesta Herbert L. Mason 1929-10-12 5487 San Luis Obispo 5.2 mi from Atascadero Comment
  UC912311  Isocoma menziesii var. sedoides Herbert L. Mason 1929-10-13 5501 San Luis Obispo 2.5 mi n Cambria Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  CAS-BOT-BC244250  Poa unilateralis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Peach, near Pescadero Comment
  CAS-BOT-BC324424  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC422686  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mountains Comment
  CAS-BOT-BC59640  Gaultheria shallon Herbert L. Mason 1921-7-1 s.n. San Mateo Pescadero Cr. Comment
  CAS-BOT-BC66301  Blechnum spicant H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC76945  Polypodium californicum H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC89136  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  JROH3555  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  RSA116666  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  RSA120036  Lonicera hispidula var. vacillans H. L. Mason 1921-7-4 s.n. San Mateo La Honda - Pescadero Creek Rd. Comment
  SEINET199760  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point Comment
  UC1100529  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-28 13084 San Mateo entrance to county prison San Francisco Comment
  UC1100530  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-28 13083 San Mateo at entrance to county prison San Francisco Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  UC1101044  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14029 San Mateo Mouth of Gazos Creek Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  UC1108514  Aira caryophyllea H. L. Mason 1921-5-29 San Mateo roadside near Arroyo de los Frijoles Comment
  UC1191273  Rumex maritimus Herbert L. Mason and Verne Grant 1946-8-28 13090 San Mateo pond between Santa Cruz and Daly City (on Highway 5) Comment
  UC241806  Typha latifolia Herbert L. Mason 1949-7-7 14032 San Mateo mouth of Pescadero Creek Comment
  UC570744  Lamium amplexicaule Herbert L. Mason 1927-4-24 3703 San Mateo mouth of San Gregorio Creek Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  UCD102559  Myriophyllum sibiricum Herbert L. Mason; Verne Grant 1946-8-28 13079 San Mateo North of San Francisco County Prison. Comment
  CAS-BOT-BC274597  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont - Crystal Springs Rd. Comment
  CAS-BOT-BC321071  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  CAS-BOT-BC424430  Heuchera pilosissima H. L. Mason 1921-6-2 s.n. San Mateo Hill near Pebble Beach, Pescadero Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  RSA0082794  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge. Comment
  UC1099770  Luzula subsessilis Herbert L. Mason 1927-4-23 3686 San Mateo along road from La Honda to Pescadero Creek Comment
  CAS-BOT-BC191151  Chorizanthe diffusa H. L. Mason 1923-6-15 397 Santa Barbara Harris Grade, on La Purisima Ridge, between Harris and Lompoc Comment
  CAS-BOT-BC214962  Pinus remorata Herbert Louis Mason 1927-9-25 4096 Santa Barbara Locally known as Pine Ridge; from West Ranch to Prisoners Harbor. Santa Cruz Island. Comment
  CAS-BOT-BC220204  Monardella sinuata subsp. sinuata H. L. Mason 1923-6-15 408 Santa Barbara Harris Grade, La Purisima Ridge Comment
  CAS-BOT-BC44766  Arctostaphylos purissima H. L. Mason 1938-5-7 11776 Santa Barbara Burton Mesa Comment
  JEPS15881  Corethrogyne filaginifolia Herbert L. Mason 1927-9-24 4092 Santa Barbara about West Ranch; Santa Cruz Island Comment
  JEPS26396  Malacothamnus fasciculatus var. nesioticus Herbert L. Mason 1927-9-24 4089 Santa Barbara about West Ranch (among low brush on slopes); Santa Cruz Island Comment
  JEPS56587  Eriogonum grande var. grande Herbert L. Mason 1927-9-24 4094 Santa Barbara gullies near West Willow Creek; Santa Cruz Island Comment
  RSA170175  Phyllospadix torreyi H. L. Mason 1927-11-26 s.n. Santa Barbara Carpinteria. Comment
  SEINET196218  Navarretia mitracarpa Herbert L. Mason 1946-6-7 12834 Santa Barbara Serpentine ridge between Camuesa Creek and Oso Creek, S of Little Pine Mountian. 762 Comment
  UC1061668  Pinus muricata Herbert L. Mason Santa Barbara Santa Cruz Island Comment
  UC1076079  Quercus X macdonaldii Herbert L. Mason 1927-9-24 4091 Santa Barbara near West Ranch; Santa Cruz Island Comment
  UC1076498  Atriplex coulteri Herbert L. Mason 1927-11-27 4149 Santa Barbara Carpenteria Carpenteria (along ocean bluff) Comment
  UC1077072  Rigiopappus leptocladus Herbert L. Mason 1946-6-8 12846 Santa Barbara s side Big Pine Mountain (Bluff Camp) Comment
  UC1077077  Logfia filaginoides Herbert L. Mason 1938-5-7 11774 Santa Barbara Burton Mesa Comment
  UC1077112  Nuttallanthus texanus Herbert L. Mason 1938-5-7 11789 Santa Barbara Burton Mesa Comment
  UC1083218  Quercus tomentella Herbert L. Mason 1927-9-25 4102 Santa Barbara pass from west ranch to Prisoners Harbor; Santa Cruz Island Comment
  UC1083335  Pinus muricata Herbert L. Mason 1923-6-15 393 Santa Barbara road between Harris and Lompoc (summit of Harris Grade); Harris Grade Comment
  UC1083374  Pinus muricata Herbert L. Mason 1941-3-27 12389 Santa Barbara summit Harris Grade; sw Santa Barbara County, Purisima Ridge, Harris Grade Comment
  UC1083375  Pinus Herbert L. Mason 1941-3-27 12393 Santa Barbara Burton Mesa Pine Canyon, Burton Mesa (Pine Canyon, w Santa Barbara County) Comment
  UC1083376  Pinus Herbert L. Mason 1941-3-27 12388 Santa Barbara summit of Harris Grade Purisima Ridge (Purisima Ridge, sw Santa Barbara County) Comment
  UC1093669  Chorizanthe obovata Herbert L. Mason 1946-6-7 12822 Santa Barbara 0.5 mi w Camuesa (Mono Flat); , w of Camuesa Comment
  UC1178998  Sanicula laciniata Herbert L. Mason 1938-5-7 11768 Santa Barbara Burton Mesa Comment
  UC1191175  Malacothamnus fasciculatus var. nesioticus Herbert L. Mason 1927-9-24 4089 Santa Barbara near West Branch; Santa Cruz Island Comment
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Nov 30 2013
  UC565578  Penstemon heterophyllus var. australis Herbert L. Mason 1923-6-16 454 Santa Barbara Rattlesnake Canyon La Combre Peak, <La Cumbre Peak> Rattlesnake Canyon Comment
  UC565582  Penstemon centranthifolius Herbert L. Mason 1923-6-15 409 Santa Barbara Harris Grade (between Harris Station and Surf); Harris Grade (between Harris Station and Surf) Comment
  UC566674  Keckiella cordifolia H. L. Mason 1927-9-23 4085 Santa Barbara canyon back of Prisoners Harbor; Santa Cruz Island Comment
  UC566902  Tauschia arguta H. L. Mason 1923-6-16 464 Santa Barbara via La Combre Trail and Rattlesnake Canyon La Combre Peak; La Combre Peak via La Combre Tail and Rattlesnake Canyon Comment
  UC570685  Solanum umbelliferum Herbert L. Mason 1923-6-16 453 Santa Barbara Rattlesnake Canyon, base of [La Combre Peak] Rattlesnake Canyon; La Combre Peak, Rattlesnake Canyon Comment
  UC570694  Solanum americanum H. L. Mason 1929-11-27 4150 Santa Barbara Carpenteria Comment
  UC570983  Rhamnus californica subsp. californica Herbert L. Mason 1923-7-14 423 Santa Barbara Gaviota Pass Comment
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Apr 2 2007
  UC570994  Rhamnus crocea Herbert L. Mason 1923-6-14 416 Santa Barbara Gaviota Pass Comment
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Apr 2 2007
  UC571032  Vaccinium ovatum Herbert L. Mason 1927-9-25 4101 Santa Barbara Pine Ridge, slopes toward West Ranch Santa Cruz Island Comment
  UC571158  Dudleya lanceolata H. L. Mason 1923-6-15 384 Santa Barbara Harris Grade Comment
  UC571218  Arctostaphylos purissima H. L. Mason 1934-3-31 8055 Santa Barbara n Lompoc; La Purissima Ridge Comment
  UC593306  Nemophila menziesii H. L. Mason 1938-5-8 11807 Santa Barbara e Zaca Peak (near summit Figueroa Mountain, San Rafael Mountains); San Rafael Mountains, Figueroa Mountain, e of Zaca Peak 1371 Comment
  UC632848  Salvia leucophylla H. L. Mason 1936-3-7 10998 Santa Barbara Point Sal Comment
  UC634800  Ceanothus spinosus Herbert L. Mason 1923-6-15 418 Santa Barbara Gaviota Pass Comment
  UC634918  Salvia leucophylla H. L. Mason 1923-6-16 432 Santa Barbara between La Cumbre Peak and Santa Barbara (Rattlesnake Canyon); Rattlesnake Canyon Comment
  UC635195  Malosma laurina H. L. Mason 1923-6-16 446 Santa Barbara Rattlesnake Canyon between Santa Barbara and La Combre Peak; Rattlesnake Canyon Comment
  UC672245  Baccharis glutinosa H. L. Mason 1927-9-24 4093 Santa Barbara West Willow Creek, Santa Cruz Island Santa Cruz Island, West Willow Creek Comment
  UC672262  Isocoma menziesii var. sedoides Herbert L. Mason 1927-9-24 4086 Santa Barbara in lateral gullies near mouth Buena Vista Creek; Santa Cruz Island, West Ranch Comment
  UC672301  Corethrogyne filaginifolia H. L. Mason 1927-9-24 4092 Santa Barbara slopes about West Ranch; Santa Cruz Island Comment
  UC672382  Eriodictyon traskiae Herbert L. Mason 1923-6-15 401 Santa Barbara Harris Grade Comment
  UC753517  Phacelia imbricata Herbert L. Mason 1946-6-7 12820 Santa Barbara Escondido Spring Santa Ynez Range 609 Comment
  UC753519  Phacelia viscida Herbert L. Mason 1946-6-7 12840 Santa Barbara road between Camuesa Creek and Hidden Potrero; San Rafael Range 914 Comment
  UC753522  Phacelia distans Herbert L. Mason 1946-6-7 12842 a Santa Barbara road up Little Pine Mountain San Rafael Range 914 Comment
  UC753535  Sanicula graveolens Herbert L. Mason 1946-6-8 12860 Santa Barbara San Rafael Range, Big Pine Mountains Big Pine Mountains; San Rafael Range, Big Pine Mountains 1981 Comment
  UC753539  Lomatium utriculatum Herbert L. Mason 1946-6-7 12832 Santa Barbara 0.5 mi. above Cameusa Creek rd. to Oso Gate (San Rafael Range); San Rafael Range 731 Comment
  UC753545  Apiastrum angustifolium Herbert L. Mason 1946-6-7 12837 Santa Barbara 0.5 mi above Cameusa Creek (on road to Oso Gate, San Rafael Range); San Rafael Range 731 Comment
  UC907832  Linanthus parviflorus Herbert L. Mason 1938-5-8 11805 Santa Barbara vicinity Figueroa Mountain summit; Figueroa Mountain 1371 Comment
  UC907867  Saltugilia splendens subsp. splendens Herbert L. Mason 1946-6-8 12847 Santa Barbara between Little Pine Mountain and Big Pine Mountain (Bluff Camp, Mono Basin area); Mono Basin area, btw Little Pine Mt. and Big Pine Mt. 1371 Comment
  UC908163  Eriastrum densifolium subsp. elongatum Herbert L. Mason 1923-6-15 412 Santa Barbara Harris Grade; near summit Comment
  UC908981  Gilia capitata subsp. abrotanifolia Herbert L. Mason 1938-5-8 11798 Santa Barbara vicinity of the summit Figueroa Mountain; vicin summit Figueroa Mountain Comment
  UCD110542  Hesperolinon micranthum Herbert L. Mason 1946-6-7 12828 Santa Barbara Ridge between Camuesa Creek and Oso Creek south of Little Pine Mountain on road to Oso Gato. 762 Comment
  UCD126183  Convolvulus simulans Herbert L. Mason 1946-6-7 12833 Santa Barbara between Camuesa Creek and Oso Creek south of Little Pine Mountain, Santa Barbara. 762 Comment
  UCD39813  Navarretia divaricata Herbert L. Mason 1946-6-8 12852 Santa Barbara San Rafael Mountains, Big Pine Mountain, summit of road. Comment
  UCD47622  Quercus wislizeni Herbert L. Mason 1923-6-15 402 Santa Barbara Harris Grade, Santa Barbara County. 1828 Comment
  SD51763  Hesperolinon micranthum Herbert L. Mason 1946-6-7 12828 Santa Barbara Ridge betweeen Camuesa Creek and Oso Creek south of Little Pine Mountain on road to Oso Gato. 762 Comment
  SEINET8061688  Symphoricarpos mollis S. C. Mason 1910-8-31 s.n. Santa Barbara N. Of Gaviota Pass. Comment
  SEINET8731332  Eriodictyon capitatum Herbert L. Mason 1947-1 Santa Barbara Comment
  UC753421  Phacelia brachyloba Herbert L. Mason 1948-6-7 12841 Santa Barbara road up Little Pine Mountain San Rafael Range 914 Comment
  UCSB45793  Solanum xanti Mason, Renee 1980-3-9 Santa Barbara Coastal canyon of 'Poison Oak Point' 2 mi. south of Gaviota on coast side of Hwy. 101 152 Comment
  CAS-BOT-BC237755  Nicotiana glauca H. L. Mason 1920-5-1 s.n. Santa Clara Stanford Arboretum Comment
  CAS-BOT-BC55923  Rhamnus crocea H. L. Mason; H. A. Borthwick 1921-3-20 s.n. Santa Clara Guadalupe Canyon Comment
  JEPS59257  Carduus pycnocephalus subsp. pycnocephalus H. L. Mason 1932-4-17 Santa Clara e of, on Bolsa Gilroy Comment
  POM310953  Leptosiphon ambiguus H. L. Mason 1933-4-21 7197 Santa Clara Road above Smith's Creek on slopes of Isabel Creek, Mount Hamilton. Comment
  SJSU14676  Plagiobothrys verrucosus D. A. Mason & J. M. 1989-4-12 Santa Clara S side Arroyo Bayo E of Arnold Ranch, Mt Hamilton Range Comment
  UC1191252  Polygonum punctatum Herbert L. Mason and S. Galen Smith 1948-8-9 8273 Santa Clara 5 mi e Gilroy (at w base of pass); Pacheco Pass Comment
  UC1191582  Datisca glomerata Herbert L. Mason, S. Galen Smith 1948-8-9 8283 Santa Clara about 10 mi w of summit of Pacheco Pass (Pacheco Creek); Pacheco Creek Comment
  UC1191583  Datisca glomerata Herbert L. Mason, S. Galen Smith 1948-8-9 8282 Santa Clara about 10 mi w of summit of Pacheco Pass (Pacheco Creek); Pacheco Creek Comment
  UC1191897  Veronica anagallis-aquatica Herbert L. Mason, S. Galen Smith 1948-8-9 8274 Santa Clara about 6 mi e of Gilroy (w base of Pacheco Pass); Pacheco Pass Comment
  UC513600  Pinus coulteri H. L. Mason 1933-4-21 7210 Santa Clara ridge s Black Mountain; Mt. Hamilton Range Comment
  UC570760  Callitriche marginata H. L. Mason 1932-4-17 6961 Santa Clara Pacheco Pass, near summit Comment
  UC592127  Nemophila pedunculata H. L. Mason 1929-3-15 5070 Santa Clara San Antonio Valley Mount Hamilton Range, San Antonio Valley Comment
  UC635631  Limnanthes douglasii subsp. douglasii H. L. Mason 1929-3-15 5068 Santa Clara San Antonio Valley Mount Hamilton Range Comment
  UC672339  Phacelia breweri Herbert L. Mason 1933-4-21 7201 Santa Clara n Mount Hamilton; Packard Ridge Comment
  UC907983  Linanthus androsaceus Herbert L. Mason 1933-4-21 7206 Santa Clara n of Packard Ridge; Headwaters of Alameda Creek Comment
  UC908169  Linanthus bicolor Herbert L. Mason 1933-4-21 7198 Santa Clara above Smith Creek (slopes of Isabel Creek); Mouth Hamilton, Isabel Creek Comment
  CAS-BOT-BC348604  Micropus californicus var. californicus H. L. Mason 1933-4-21 7188 Santa Clara Junction of Mount Hamilton and Hendrick's Road Comment
  CAS-BOT-BC348605  Micropus californicus var. californicus H. L. Mason 1932-4-17 6936 Santa Clara Hill, one mile east of New Almaden Comment
  CAS-BOT-BC430779  Lithophragma affine H. L. Mason; H. A. Borthwick 1921-3-20 s.n. Santa Clara Guadelupe Canon Comment
  CAS-BOT-BC441271  Luzula macrantha W. Mason 1917-3-6 s.n. Santa Clara Hills back of Stanford Univ. Comment
  CAS-BOT-BC886  Dicentra chrysantha Herbert L. Mason 1921-6-21 s.n. Santa Clara Road from Alma to Mt. Umunhum, Sierra Azule Ridge Comment
  SEINET12519194  Amsinckia douglasiana C. T. Mason Jr. 1948-1 1106 Santa Clara Along Quimby Road to Mount Hamilton, 0.5 mile west of "Buckeye Ranch". 518 Comment
  UC565481  Lasthenia glabrata subsp. glabrata H. L. Mason 1932-4-17 6952 Santa Clara sw Gilroy Comment
  UC634707  Clarkia affinis H. L. Mason 1932-4-17 6947 Santa Clara Uvas-Almaden Road Comment
  UCD124894  Veronica Herbert L. Mason; S. Galen Smith 1948-8-9 8274 Santa Clara small reservoir, Pacheco Pass, just west of summit. Comment
  POM270462  Actaea rubra subsp. arguta H. L. Mason 1927-7-31 4007 Santa Cruz Mt. Herman, Santa Cruz Mts. Comment
  RSA112365  Rubus spectabilis var. franciscanus H. L. Mason 1922-3-29 s.n. Santa Cruz Liddell Creek near mouth of canyon. Comment
  UC1061647  Pinus attenuata Herbert L. Mason Nov. 1931 5894 Santa Cruz head of short canyon s Waddell Creek Comment
  UC1076092  Lithocarpus densiflorus Herbert L. Mason 1927-7-27 3972 Santa Cruz near w end Big Basin Comment
  UC1076464  Equisetum hyemale subsp. affine H. L. Mason 1932-4-28 7028 Santa Cruz Soquel Canyon; Santa Cruz Mts. Comment
  UC1083220  Quercus wislizeni Herbert L. Mason 1929-12-1 5513 Santa Cruz Swanton Comment
  UC1083224  Quercus wislizeni Herbert L. Mason Nov 1931 5895 Santa Cruz canyon above Greyhound Rock; Ano Nuevo Point Comment
  UC1083331  Sequoia sempervirens Herbert L. Mason 1927-7-27 3979 Santa Cruz along roadside Boulder Creek Rd.; Big Basin, Boulder Creek Rd. Comment
  UC1101165  Polygonum lapathifolium Herbert L. Mason 1927-10-4 4133 Santa Cruz Waddell Creek Ano Nuevo Point (mouth) Comment
  UC555659  Cercocarpus betuloides var. betuloides Herbert L. Mason 1927-7-27 3973 Santa Cruz w end of Big Basin Big Basin Comment
  UC571189  Arctostaphylos andersonii Herbert L. Mason 1929-12-1 5514 a Santa Cruz between Davenport and Felton; Empire grade Comment
  UC634654  Epilobium canum subsp. canum H. L. Mason 1927-10-4 4123 Santa Cruz mouth of Waddell Creek Ano Nuevo Point Comment
  UC634954  Anemone oregana H. L. Mason 1932-4-28 7025 Santa Cruz Soquel Canyon; Santa Cruz Mtns Comment
  UC635417  Actaea rubra H. L. Mason 1927-7-31 4006 Santa Cruz Santa Cruz Mts., Mt. Herman Comment
  UC635698  Stachys ajugoides var. rigida H. L. Mason 1926-6-1 3367 Santa Cruz Felton San Lorenzo River Comment
  UC672215  Pseudognaphalium ramosissimum H. L. Mason 1932-7-31 7134 Santa Cruz mouth Waddell Creek Comment
  UC908921  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1926-6-6 3364 Santa Cruz along San Lorenzo River (Felton); along San Lorenzo River, Felton Comment
  UC912211  Ambrosia chamissonis Herbert L. Mason 1927-10-4 4126 Santa Cruz mouth Waddell Creek; Ano Neuvo Pt. Comment
  UCD47138  Quercus parvula var. shrevei Herbert L. Mason 1931-11-1 5895 Santa Cruz Canyon above Greyhound Rock, Ano Nuevo Point, Santa Cruz County. Comment
  CAS-BOT-BC532729  Zigadenus fremontii H. L. Mason 1922-3-29 s.n. Santa Cruz Bonnie Doon - Davenport Road Comment
  CAS-BOT-BC420170  Polygonum sawatchense subsp. sawatchense Herbert L. Mason; Verne Grant 1947-7-9 13288 Shasta Highway 299, just east of Hatchet Creek summit 1219 Comment
  JEPS22418  Mitella diversifolia Herbert L. Mason 1948-7-17 13593 Shasta along US Highway 299 just e Hatchet Mtn summit; just e of Hatchet Mtn summit Comment
  POM311125  Limnanthes floccosa subsp. floccosa C. T. Mason 1949-4-25 1260 Shasta 6.7 miles west of Ingot along Hwy 299 Comment
  UC1055934  Heteranthera dubia Herbert L. Mason 1955-8-14 14660 Shasta Fall River Mills Pit River Comment
  UC1179053  Acer circinatum Herbert L. Mason 1947-7-8 13284 Shasta on Highway #299 just e Hatchet Creek Summit; just e of Hatchet Creek Summit 1219 Comment
  UC971858  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1949-4-25 1259 Shasta 3 mi e Bella Vista (in a ditch along US Hwy 299) Comment
  UC971860  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1949-4-25 1262 Shasta US Hwy 299 between Bella Vista and Ingot (6.2 mi w of Ingot, in vicinity of Cedar Creek (the type locality)) 304 Comment
  CAS-BOT-BC534959  Wolffia borealis H. L. Mason 1955-6-8 14629 Shasta Bridge, W edge of Fall River Mill Comment
  CAS-BOT-BC534960  Wolffia borealis H. L. Mason 1955-6-8 14629 Shasta Bridge, W edge of Fall River Mill Comment
  POM312599  Mitella diversifolia H. L. Mason 1948-7-17 13593 Shasta Hatchet Mtn Comment
  UC908129  Navarretia intertexta H. L. Mason 1932-5-25 A 7204 Shasta n of Redding Comment
  UCD116493  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1949-4-25 1258 Shasta along US Highway 299 between Redding and Bella Vista. Comment
  CAS-BOT-BC302663  Gnaphalium palustre Herbert L. Mason 1952-7-19 14451 Sierra Sierra Nevada. 1.5 miles east of Calpine at junction of Calpine with Sierraville-Beckwourth road, Sierra Valley 1524 Comment
  CAS-BOT-BC389538  Silene nuda Herbert L. Mason 1952-7-19 14452 Sierra Sierra Nevada. 1.5 miles east of Calpine at junction of Calpine with Sierraville-Beckwourth road. Sierra Valley 1524 Comment
  CAS-BOT-BC389539  Silene nuda Herbert L. Mason 1952-7-19 14452 Sierra Sierra Nevada. 1.5 miles east of Calpine at junction of Calpine with Sierraville-Beckwourth road. Sierra Valley 1524 Comment
  JEPS3589  Downingia bacigalupii Herbert L. Mason 1952-7-17 14384 Sierra 1.5 mi e Calpine (at junction of Calpine with Sierraville-Beckwourth road); Sierra Nevada, Sierra Valley 1524 Comment
  JEPS3637  Castilleja pilosa Herbert L. Mason 1952-7-19 14438 Sierra 1.5 mi e Calpine (at the junction of the road from Beckwourth to Sierraville and that to Calpine); Sierra Valley 1493 Comment
  UC1060656  Polygonum parryi Herbert L. Mason 1957-6-21 14709 Sierra 3 mi n Satley; Sierra Valley Comment
  UC1101360  Myosurus apetalus Herbert L. Mason 1953-6-16 14551 Sierra 1 mi s Beckwourth Buttes Comment
  UC1101542  Elatine brachysperma Herbert L. Mason 1952-7-17 14386 Sierra 1.5 mi e Calpine (at junstion of Calpine and Sierraville-Beckwourth Rd); Sierra Valley Comment
  UC1111017  Viola macloskeyi Herbert L. Mason 1945-9-9 Sierra 1 mi above Sierra City (North Fork of Yuba River); Yuba River Comment
  UC1178983  Paxistima myrsinites Herbert L. Mason 1945-9-9 12697 Sierra s. of Downieville; Yuba R. Canyon Comment
  UC965646  Limosella aquatica Herbert L. Mason 1952-7-17 14387 Sierra at junction of Calpine with Sierraville-Beckwourth road 1.5 mi e Calpine (Sierra Valley); Sierra Nevada, Sierra Valley 1524 Comment
  UC965650  Veronica peregrina subsp. xalapensis Herbert L. Mason 1952-7-19 14457 Sierra 1.5 mi e of Calpine (at junction of; with Sierraville-Beckwourth road); Sierra Nevada, Sierra Valley 1524 Comment
  UC965657  Eleocharis engelmannii var. detonsa Herbert L. Mason 1952-7-19 14446 Sierra 1.5 mi W of Calpine (at junction of Calpine with Sierraville-Beckworth road); Sierra Valley 1524 Comment
  CAS-BOT-BC27346  Elatine gracilis Herbert L. Mason 1952-8-17 14494 Sierra 0.4 mile S of Little Truckee River Bridge 1920 Comment
  SEINET10460780  Porterella carnosula Mason 1952-7-19 Mason 14439 Sierra Margins of marshy pond 1.5 miles east of Calpine near junction of Sierraville-Beckwith road and Calpine road, Sierra Valley Comment
  SEINET8729372 Image available Navarretia propinqua Herbert L. Mason 1952-1 14443 Sierra 1.5 miles east of Calpine at junction of Calpine with Sierraville-Beckwourth road. Sierra Valley 1524 Comment
  UC1199883  Streptanthus polygaloides Herbert L. Mason 1959-5-24 14899 Sierra n bank of river exactly opposite Goodyears Bar; in canyon of north fork of the Yuba River 853 Comment
Read comments
Jun 21 2014
  UC965526  Navarretia intertexta subsp. propinqua Herbert L. Mason 1952-7-17 14376 Sierra between Sierraville and Loyalton; Sierra Nevada, Sierra Valley 1524 Comment
  UC985951 Image available Elatine gracilis Herbert L. Mason 1952-8-17 14494 Sierra 0.4 mi s Little Truckee River Bridge; Sierra Nevada; Sierra Co. 1920 Comment
  UCD96285  Myosurus apetalus Herbert L. Mason 1953-6-16 14551 Sierra Sierra County. One mile south of Beckwourth Buttes. Comment
  CAS-BOT-BC420951  Polygonum sawatchense subsp. sawatchense Herbert L. Mason 1948-7-18 13623 Siskiyou Grass Lake Comment
  CAS-BOT-BC52172  Ceanothus pumilus Herbert L. Mason 1947-5-17 14760 Siskiyou Five miles south of Callahan, on Scott Mountain road Comment
  JEPS26621  Saxifraga ferruginea Herbert L. Mason Jul 18 1961-Jul 22 1961 15125 Siskiyou 1 mi over ridge and se of Castle Lake (Little Castle Lake); Little Castle Lake 1691 Comment
  JEPS3011  Nothochelone nemorosa Herbert L. Mason 1950-7-16 14062 Siskiyou Road from Happy Camp California, to Waldo Oregon Happy Camp Comment
  UC1076020  Minuartia nuttallii subsp. gregaria Herbert L. Mason 1947-5-17 14766 Siskiyou 5 mi s Callahan (on Scott Mountain Road) Comment
  UC1076021  Ceanothus pumilus Herbert L. Mason 1947-5-17 14760 Siskiyou on Scott Mountain road five mi s Callahan; s of Callahan Comment
  UC1191237  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1948-7-18 13624 Siskiyou Grass Lake Comment
  UC1191239  Polygonum douglasii subsp. douglasii Herbert L. Mason 1948-7-18 13622 Siskiyou Grass Lake Comment
  UC1191241  Polygonum douglasii subsp. douglasii Herbert L. Mason 1948-7-17 13602 Siskiyou Eastern Grass Lake Comment
  UC1191641  Collomia tinctoria Herbert L. Mason 1948-7-17 13596 Siskiyou hills near Grass Lake Comment
  UC635010  Eriogonum compositum var. compositum H. L. Mason 1931-5-9 5865 Siskiyou Shasta Creek Comment
  UC935797  Sagittaria cuneata Herbert L. Mason 1948-7-18 13607 Siskiyou Grass Lake Comment
  UC971920  Eriogonum vimineum Herbert L. Mason 1950-7-15 14040 Siskiyou stream wash, Scott Creek Scott Valley, Scott Creek Comment
  UCD117528  Leucothoe davisiae David T. Mason 1961-8-14 s.n. Siskiyou South end of lake, Heart Lake (ca. 1 mile west of Castle Lake). 701 Comment
  CAS-BOT-BC456143  Zannichellia palustris Herbert L. Mason 1931-5-9 5863 Siskiyou Shasta Creek Comment
  JEPS3576  Cordylanthus tenuis subsp. viscidus Herbert L. Mason 1950-7-16 14064 Siskiyou 5 mi s of summit of road from Happy Camp CA to Waldo, OR Comment
  POM312532  Polygonum sawatchense subsp. oblivium H. L. Mason 1948-7-18 13623 Siskiyou Grass Lake Comment
  POM312608  Gayophytum racemosum H. L. Mason 1948-7-17 13603 Siskiyou Eastern Grass Lake. Comment
  POM312878  Trifolium eriocephalum subsp. eriocephalum H. L. Mason 1948-7-17 13601 Siskiyou Eastern Grass Lake, in forested hills Comment
  UC1076033  Arabis subpinnatifida Herbert L. Mason 1947-5-17 14796 Siskiyou above Scott Mountain Pass (Siskiyou-Trinity counties) Comment
  UC1212238  Hesperolinon micranthum Herbert L. Mason 1950-7-1 14046 Siskiyou on road from Callahans to summit of mountain; Scott Mountain grade Comment
  UCD100656  Polygonum sawatchense subsp. sawatchense Herbert L. Mason 1948-7-18 13623 Siskiyou Grass Lake. Comment
  UCD140137  Carex athrostachya Herbert L. Mason 1948-7-18 13610 Siskiyou Grass Lake. Comment
  CAS-BOT-BC31400  Bolboschoenus robustus Herbert L. Mason 1945-8-16 12660 a Solano Grizzly Island, near Suisun Bay. Comment
  SEINET4178869 Image available Schoenoplectus californicus Herbert L. Mason, Verne Grant 1947-1 13267 Solano Cordelia Slough, Suisun Marsh Comment
  UC1100360  Vulpia myuros var. hirsuta Herbert L. Mason and Malcolm A. Nobs 1949-4-27 722 Solano Suisun State Game Refuge Comment
  UC1100773  Schoenoplectus acutus var. occidentalis Herbert L. Mason, Verne Grant 1947-6-26 13265 Solano Suisun Marsh Cordelia Slough, Suisun Marsh Comment
  UC1100799  Scirpus californicus Herbert L. Mason, Verne Grant 1946-7-5 12904 Solano in Lake Chabot water reservoir just n Vallejo; n of Vallejo Comment
  UC1100917  Scirpus maritimus Herbert L. Mason, Verne Grant 1947-5-14 13232 Solano Suisun Marsh Cordelia Creek, Suisun Marsh Comment
  UC1101093  Juncus patens Herbert L. Mason and Verne Grant 1946-7-5 12913 Solano just n Vallejo (in Lake Chabot water reservoir); Lake Chabot Comment
  UC1191474  Lathyrus jepsonii var. jepsonii Herbert L. Mason 1945-7-12 12650 Solano Suisun Marshes Comment
  UC1191602  Hoita macrostachya Herbert L. Mason and Verne Grant 1947-6-26 13259 Solano Cordelia Slough Suisun Marsh Comment
  UC1191640  Calystegia sepium subsp. binghamiae Herbert L. Mason, Verne Grant 1947-6-26 13251 Solano Cordelia Slough , Cordelia Slough (Suisun Marsh) Comment
  UC1191659  Cuscuta subinclusa Herbert L. Mason and Verne Grant 1947-6-26 13247 Solano Cordelia Slough Suisun Marsh Comment
  UC1191710  Epilobium brachycarpum Herbert L. Mason and Verne Grant 1947-6-26 13245 Solano Cordelia Slough Suisun Marsh Comment
  UC1191809  Apocynum cannabinum Herbert L. Mason and Verne Grant 1947-6-26 13244 Solano Suisun Marsh, Cordelia Slough Comment
  UC1191943  Oenanthe sarmentosa Herbert L. Mason 1945-8-16 12657 Solano Grizzly Island near Suisun Bay; Grizzly Island Comment
  UC1191955  Apium graveolens Herbert L. Mason, Verne Grant 1947-6-26 13264 Solano Cordelia Slough, Suisun Marsh Cordelia Slough; , Suisun Marsh Comment
  UC1192021  Downingia concolor var. concolor Herbert L. Mason 1949-5-14 745 Solano about 6 mi sw Dixon Comment
  UC1192228  Grindelia hirsutula Herbert L. Mason 1945-8-16 12654 Solano near Suisun Bay; Grizzly Island Comment
  UC1240187  Typha Herbert L. Mason 1947-6-26 13257 Solano Cordelia Slough Suisun Marsh; , Cordelia Slough Comment
  UC555494  Trifolium bifidum var. decipiens H. L. Mason 1928-5-4 4511 Solano Greene Valley Comment
  UC566853  Sanicula crassicaulis H. L. Mason 1928-5-4 4509 Solano Greene Valley Comment
  UC673603  Lathyrus jepsonii var. jepsonii Herbert L. Mason 1923-10-6 772 Solano Suisun Marshes Comment
  UC971794  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-4-23 1251 Solano e Dixon-Vacaville airport (along US Hwy 40) Comment
  UCD141341  Juncus balticus subsp. ater Herbert L. Mason; Malcolm A. Nobs 1949-4-27 725 Solano Suisun State Game Refuge. Comment
  CAS-BOT-BC114583  Cyperus eragrostis Herbert L. Mason 1945-8-17 12663 Solano North of Rio Vista. Comment
  CAS-BOT-BC413484  Persicaria amphibia Herbert L. Mason 1945-8-17 12665 Solano North of Rio Vista Comment
  CAS-BOT-BC419414  Persicaria punctata Herbert L. Mason 1945-8-17 12664 Solano North of Rio Vista Comment
  CAS-BOT-BC453930  Potamogeton pectinatus Herbert L. Mason; Verne Grant 1946-7-5 12903 Solano In Lake Chabot water reservoir just north of Vallejo Comment
  UC1100737  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-7-5 12905 Solano just N of Vallejo (in Lake Chabot water reservoir); ; Marsh Plant Survey Comment
  UC1101088  Juncus phaeocephalus var. paniculatus Herbert L. Mason 1946-7-5 12911 Solano just n Vallejo (Lake Chabot water reservoir); Lake Chabot Comment
  UC1191292  Atriplex semibaccata Herbert L. Mason 1945-8-16 12658 Solano near Suisun Bay (Grizzly Island); , near Suisun Bay Comment
  UC1191566  Lythrum californicum Herbert L. Mason, Verne Grant 1947-6-26 13263 Solano Suisun Marsh, Coredelia Slough Suisun Marsh; , Coredelia Slough Comment
  UC1192164  Baccharis glutinosa Herbert L. Mason 1945-8-16 12656 Solano near Suisan Bay; Grizzly Island Comment
  UC971820  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1137 Solano 3 mi s Winters (along road to Vacaville) 30 Comment
  UCD101631  Rumex salicifolius Herbert L. Mason 1945-8-16 12652 Solano Grizzly Island, near Suisun Bay. Comment
  UCD127757  Oenanthe sarmentosa Herbert L. Mason 1945-8-16 12657 Solano Grizzly Island, near Suisun Bay. Comment
  UCD141083  Cyperus eragrostis Herbert L. Mason 1945-8-17 12663 Solano North of Rio Vista. Comment
  CAS-BOT-BC193383  Vaccinium ovatum H. L. Mason 1928-4-8 4289 a Sonoma Two miles north of Fort Ross. Comment
  CAS-BOT-BC202772  Euonymus occidentalis H. L. Mason 1928-7-11 4890 Sonoma Canyon 2 miles north of Fort Ross Comment
  CAS-BOT-BC259255  Eriogonum latifolium H. L. Mason 1928-7-10 4885 Sonoma Jenner Comment
  CAS-BOT-BC266420  Campanula californica Herbert L. Mason 1946-7-4 12894 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  CAS-BOT-BC301146  Eriophyllum lanatum var. achilleoides H. L. Mason 1934-4-28 8075 Sonoma Head of Dohrman Creek, Jensen's Ranch, four miles west of Healdsburg Comment
  CAS-BOT-BC322609  Micropus amphibolus Herbert L. Mason 1934-4-28 8081 Sonoma Jensen's Ranch, head of Dohrman Creek four miles west of Healdsburg Comment
  CAS-BOT-BC428955  Micranthes californica H. L. Mason 1931-3-7 5807 Sonoma Vine Hill School, 12 miles west of Santa Rosa Comment
  CAS-BOT-BC45277  Ancistrocarphus filagineus H. L. Mason 1934-4-28 8093 Sonoma Jensen's Ranch, Dohrmann Creek Comment
  CAS-BOT-BC91286  Umbellularia californica H. L. Mason 1925-11-26 2492 Sonoma Banks of Russian River, Monte Rio. Comment
  CAS-BOT-BC9900  Delphinium nudicaule Herbert L. Mason 1928-4-8 4287 Sonoma Two miles north of Fort Ross Comment
  JEPS42276  Ceanothus H. L. Mason 1931-3-8 Sonoma 8 mi w Santa Rosa (between Santa Rosa and Guerneville, near Vine Hill School) Comment
  JEPS65919  Trifolium barbigerum var. andrewsii H. L. Mason 1931-4-12 Sonoma Fulton Comment
  UC1076360  Pinus muricata Herbert L. Mason 1928-4-8 4278 Sonoma Fort Ross Comment
  UC1093862  Logfia gallica Herbert L. Mason 1947-5-4 13210 Sonoma near Kenwood; Hood Mountain Comment
  UC1100113  Agrostis alba Herbert L. Mason 1946-7-4 12888 Sonoma between Santa Rosa and Forestville Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UC1100684  Rhynchospora globularis var. globularis Herbert L. Mason 1946-7-4 12882 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UC1100685  Rhynchospora californica Herbert L. Mason 1946-7-4 12881 Sonoma between Santa Rosa and Forestville; Pitkin Marsh Comment
  UC1101052  Tofieldia occidentalis subsp. occidentalis Herbert L. Mason 1946-7-4 12887 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  UC1134244  Cupressus sargentii Mason 1932-7-19 123 Sonoma 0.6 mi nw Los Alamos School; Santa Rosa Quad. Comment
  UC1186126  Phlox speciosa subsp. occidentalis Herbert L. Mason 1934-4-28 8065 Sonoma Jensen Ranch, head of Dohrman Creek Dohrman Creek Comment
  UC1212428  Hesperolinon micranthum Herbert L. Mason 1946-7-4 12895 Sonoma 2 mi e Occidental (on Harrison Grade); Inner North Coast Ranges Comment
  UC565501  Hedypnois rhagadioloides H. L. Mason 1928-4-13 4333 Sonoma hills between Santa Rosa and Calistoga (Reili School) Comment
Read comments
Mar 30 2009
  UC566872  Yabea microcarpa H. L. Mason June 1930 5656 Sonoma Mouth of Gualala River Comment
  UC570883  Heuchera pilosissima Herbert L. Mason 1928-4-8 4286 Sonoma 2 mi n Ft. Ross (Coast) Comment
  UC570889  Heuchera micrantha var. erubescens H. L. Mason June 1930 5665 Sonoma mouth of Gualala River Comment
  UC571087  Arctostaphylos densiflora H. L. Mason 1931-3-7 5805 Sonoma 12 mi w Santa Rosa; Vine Hill School Comment
  UC571127  Geranium core-core H. L. Mason 1928-4-7 4276 Sonoma mouth of Russian River, Jenner Jenner; Russian River, Jenner Comment
  UC571194  Arctostaphylos columbiana H. L. Mason 1928-4-8 4290 Sonoma Fort Ross Comment
  UC571200  Arctostaphylos densiflora H. L. Mason 1931-3-7 5804 Sonoma 12 mi w Santa Rosa; Vine Hill School Comment
  UC581116  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1934-4-28 8082 Sonoma Jensen's Ranch; Dohrmann Creek Comment
  UC581533  Viola adunca H. L. Mason June 1930 5663 Sonoma mouth of Gualala River Comment
  UC634561  Ceanothus confusus H. L. Mason 1934-4-28 8072 Sonoma Jensen's Ranch, at head of Dohrmans Creek Comment
  UC634726  Vaccinium ovatum H. L. Mason 1925-11-26 2496 Sonoma Monte Rio Comment
  UC634738  Rhododendron macrophyllum H. L. Mason 1928-7-11 4894 Sonoma 2 mi n of Fort Ross Comment
  UC635130  Saxifraga integrifolia H. L. Mason 1931-3-7 5808 Sonoma 12 mi w of Santa Rosa (Vine Hill School); Vine Hill School Comment
  UC635359  Delphinium nudicaule H. L. Mason 1928-4-7 4277 Sonoma Jenner Russian River (mouth of river) Comment
  UC635504  Umbellularia californica H. L. Mason Nov 26 1925-Nov 27 1925 2492 Sonoma Monte Rio, Russian River Russian River; Monte Rio, Russian River Comment
  UC635550  Saxifraga californica H. L. Mason 1931-3-7 5807 Sonoma 12 mi w of Santa Rosa (Vine Hill School); Vine Hill School Comment
  UC672157  Calochortus amabilis Herbert L. Mason 1934-4-28 8068 Sonoma Jensen's Ranch Dohrman Creek Comment
  UC672457  Mimulus grandis H. L. Mason June 1930 5651 Sonoma mouth Gualala River Comment
  UC907842  Linanthus bicolor Herbert L. Mason 1943-4-16 12569 Sonoma about 10 mi above Sonoma Comment
  UC907883  Gilia capitata subsp. pacifica Herbert L. Mason 1928-7-10 4886 Sonoma Jenner Comment
  UC908781  Linanthus jepsonii Herbert L. Mason 1928-4-13 4334 Sonoma Reibli School, near springs Comment
  UC912248  Arnica discoidea Herbert L. Mason 1934-4-28 8063 Sonoma ridge ne of, (head of Dohrman Creek) Jensen's Ranch; Dohrman Creek Comment
  UC912444  Lonicera hispidula var. vacillans Herbert L. Mason 1934-4-28 8080 Sonoma Jensen's Ranch Comment
  UC912489  Delphinium Herbert L. Mason 1928-4-13 4326 Sonoma wet marsh and pools near Petaluma Comment
  UC912509  Wyethia angustifolia Herbert L. Mason 1934-4-28 8073 Sonoma head Dohrman's Creek; Jensen's Ranch Comment
  UCD110543  Hesperolinon micranthum Herbert L. Mason 1946-7-4 12895 Sonoma Two miles east of Occidental on Harrison Grade. Comment
  UCD141234  Rhynchospora capitellata Herbert L. Mason 1946-7-4 12881 Sonoma Pitkin Marsh, between Santa Rosa and Forestville. Comment
  UCD53597  Agrostis stolonifera Herbert L. Mason 1946-7-4 12888 Sonoma Pitkin Marsh, between Santa Rosa and Forestville. Comment
  CAS-BOT-BC230378  Navarretia leucocephala subsp. bakeri Herbert L. Mason 1934-4-28 8094 Sonoma Highway between Healdsburg and Santa Rosa Comment
  POM312557  Trichostema laxum H. L. Mason 1946-7-4 12897 Sonoma 2 miles east of Occidental. Comment
  POM312928  Tofieldia glutinosa subsp. occidentalis H. L. Mason 1946-7-4 12887 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  SEINET6670470  Limnanthes douglasii subsp. douglasii C. T. Mason 1949-4-11 1249 Sonoma West side of highway 37, 2.4 miles north of junction of state highway 37 and 48, Sears Point. Comment
  UC543764  Asarum caudatum Herbert L. Mason 1926-3-21 2778 Sonoma Middleton Road - Mt. St Helena; Lake Co. Comment
  UC673605  Vicia sativa subsp. nigra Herbert L. Mason 1926-3-20 2750 Sonoma s of Calistoga (marshes, along railroad right-of-way) Comment
  UC971869  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-5-9 1122 A Sonoma 0.8 mi s Kenwood Market (e side of Sonoma-Santa Rosa main hwy); Kinneybrook Farm Comment
  CAS-BOT-BC83380  Myosurus minimus Herbert L. Mason 1952-4-26 14274 Stanislaus 3 miles east of the San Joaquin River, Hilmar Road near Crows Landing Road. Comment
  CAS-BOT-BC83381  Myosurus minimus Herbert L. Mason 1952-4-26 14274 Stanislaus 3 miles east of the San Joaquin River, Hilmar Road near Crows Landing Road. Comment
  UC1081505  Castilleja affinis subsp. affinis H. L. Mason 1929-4-7 5186 Stanislaus about 10 mi e Oakdale (Sierra Nevada foothills); Sierra Nevada Comment
  UC1101338  Myosurus minimus subsp. apus Herbert L. Mason 1952-5-18 14290 Stanislaus Hilmar Road e of San Joaquin River (1 mi from junction with Crows Landing Road); Hilmar Road Comment
  UC1101570  Paspalum dilatatum Herbert L. Mason and S. Galen Smith 1948-7-30 8260 Stanislaus on Crow's Landing road about 7 mi s Modesto Comment
  UC1191451  Velezia rigida Herbert L. Mason 1948-5-31 13571 Stanislaus near Knight's Ferry; Stanislaus River, near Knight's Ferry Comment
  UC1191956  Eryngium racemosum Herbert L. Mason and S. Galen Smith 1948-8-17 8338 Stanislaus ca. 2 mi. e. Westley (near Grayson) Comment
  UC570751  Callitriche longipedunculata H. L. Mason 1929-4-7 5171 Stanislaus 6 miles west of Oakdale Comment
  UC570876  Lithophragma Herbert L. Mason 1929-4-7 5176 Stanislaus about 10 mi above Oakdale (basaltic bluffs); Sierra foothills Comment
  UC573062  Pectocarya pusilla H. L. Mason 1929-4-7 5180 Stanislaus bluffs ca 10 mi above Oakdale; Sierra Foothills Comment
  UC597549  Mimulus bolanderi H. L. Mason 1935-5-9 Stanislaus near Arroyo del Puerto; Mount Hamilton Range Comment
  UC672474  Collinsia heterophylla H. L. Mason 1929-4-7 5182 Stanislaus about 10 mi e of Oakdale (Sierra Nevada Foothills); Sierra Nevada Foothills Comment
  CAS-BOT-BC500195  Orobanche fasciculata H. L. Mason 1935-5-9 s.n. Stanislaus Mount Hamilton Range, Inner South Coast Ranges. Talus slopes of Red Mountains, Arroyo del Puerto 426 Comment
  CAS-BOT-BC83384  Myosurus minimus Herbert L. Mason 1952-5-18 14288 Stanislaus On Hilmar Road, east of the San Joaquin River about 1 mile from the junction with the Crows Landing Road. Comment
  UC570732  Pogogyne serpylloides H. L. Mason 1929-4-7 5167 Stanislaus six miles west of Oakdale Comment
  UCD96580  Myosurus minimus Herbet L. Mason 1952-5-18 14288 Stanislaus near abandoned gas well, on Hilmar road, east of the San Joaquin River about 1 mile from the junction with the Crows Landing road. Comment
  UCD96583  Myosurus minimus Herbert L. Mason 1952-4-26 14274 Stanislaus 3 miles east of the San Joaquin River, Hilmar Road near Crows Landing Road. Comment
  CAS-BOT-BC203385  Hibiscus lasiocarpos var. occidentalis Herbert L. Mason 1945-9-19 12726 Sutter West Butte Road on the east side of Butte Creek Comment
  CAS-BOT-BC259745  Paspalum distichum Herbert L. Mason 1945-9-18 12701 Sutter Sutter Bypass near bridge on Yuba City - Knight's Landing Highway Comment
  RSA313135  Setaria pumila H. L. Mason 1945-9-18 12712 Sutter Along drainage ditches, Pennington Toad between Live Oak and Pennington Comment
  SEINET200145 Image available Crypsis schoenoides H. L. Mason 1945-9-18 12706 Sutter Overflow lands of Sutter By-pass near bridge on Yuba City-Knight's Landing highway. Comment
  UC1099790  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1947-3-30 13162 Sutter 1 mi n West Butte Comment
  UC1100461  Setaria pumila Herbert L. Mason 1945-9-18 12712 Sutter Pennington Rd. between Live Oak and Pennington Comment
  UC1100536  Cyperus eragrostis Herbert L. Mason 1945-9-18 12704 Sutter overflow lands of Sutter By-pass near bridge on Yuba City-Knight's Landing Hwy. Comment
  UC1100680  Scirpus acutus var. occidentalis Herbert L. Mason 1945-9-18 12700 Sutter margins of pools on overflow lands of Sutter By-pass near bridge of Yuba City- Knight's Landing Highway; overflow lands of Sutter By-pass Comment
  UC1179044  Blennosperma nanum var. nanum Herbert L. Mason 1947-3-30 13164 Sutter 1 mi n of West Butte Comment
  UC1191607  Lotus purshianus var. purshianus Herbert L. Mason 1946-9-4 13106 Sutter Colusa Gun Club Butte Sink Comment
  UC1191935  Eryngium articulatum Herbert L. Mason and Verne Grant 1946-9-4 13103 Sutter Butte Sink, Colusa Gun Club Comment
  UC1192044  Proboscidea louisianica subsp. louisianica Herbert L. Mason and Verne Grant 1946-8-6 12976 Sutter West Butte; roadside Comment
  UC1192057  Verbena litoralis Herbert L. Mason, Verne Grant 1946-8-14 13039 Sutter between Live Oak and Pennington Comment
  UC1192088  Symphyotrichum spathulatum Herbert L. Mason 1945-9-18 12708 Sutter Sutter By-pass near bridge on Yuba City-Knight's Landing Highway Comment
  UC1192214  Symphyotrichum spathulatum Herbert L. Mason, Verne Grant 1946-9-4 13102 Sutter Colusa Gun Club Butte Sink Comment
Read comments
Aug 20 2007
  POM312509  Aster lentus H. L. Mason 1945-9-18 12708 Sutter Margins of pools on overflow lands of Sutter by-pass near bridge on Yuba City-Knight's Landing highway. Comment
  UC1076032  Collomia diversifolia Herbert L. Mason 1947-5-18 14793 Tehama w Paskenta; Paskenta Grade Comment
  UC1076052  Navarretia tagetina Herbert L. Mason 1947-5-18 14786 Tehama 1 mi w Corning Comment
  UC1111586  Navarretia heterandra Herbert L. Mason 1947-5-18 14787 Tehama 1 mi w Corning Comment
  UC1076024  Navarretia tagetina Herbert L. Mason 1947-5-18 14790 Tehama w of Paskenta (base of Paskenta Grade); Paskenta Grade Comment
  SEINET197687  Gilia capillaris Herbert L. Mason 1950-7-15 14049 Trinity Summit of grade Scott Mountain Comment
  UC1076045  Antennaria dimorpha Herbert L. Mason 1947-5-17 14777 Trinity summit of, (Trinity-Siskiyou County line) Scott Mountain Grade Comment
  UC1101059  Narthecium californicum Herbert L. Mason 1950-7-15 14053 Trinity summit of grade Scott Mt. Comment
  UC1191517  Darlingtonia californica Herbert L. Mason 1950-7-15 14050 Trinity in wet bog at summit of grade Scott Mountain Comment
  UC1199812  Calochortus nudus Herbert L. Mason 1950-7-15 14047 Trinity Scott Mountain, summit of grade Scott Mountain Comment
  UC971912  Gilia capitata subsp. capitata Herbert L. Mason 1950-7-15 14056 Trinity summit of grade Scott Mountain Scott Mountain Comment
  UC971914  Solanum umbelliferum Herbert L. Mason 1950-7-15 14049 Trinity Scott Mountain, Summit of grade Scott Mountain Comment
  CAS-BOT-BC510393  Hastingsia alba Herbert L. Mason 1950-7-15 14051 Trinity Summit of grade, Scott Mountain Comment
  CAS-BOT-BC516032  Narthecium californicum Herbert L. Mason 1950-7-15 14053 Trinity Summit of grade, Scott Mountain Comment
  JEPS19311  Viola praemorsa subsp. linguifolia Herbert L. Mason 1947-5-17 14771 Trinity Scott Mountain Divide Comment
  UC1076025  Viola purpurea subsp. integrifolia Herbert L. Mason 1947-5-17 14767 Trinity Scott Mountain Divide Comment
  SEINET3560015 Image available Lotus strigosus Herbert L. Mason 1938-4-14 11707 Tulare 4 miles east of Exeter Comment
  UC1076216  Lupinus benthamii Herbert L. Mason 1938-4-14 11706 Tulare 4 mi e of Exeter Rocky Hill (Rocky Hill); e of Exeter, Rocky Hill Comment
  UC1077073  Lomatium utriculatum Herbert L. Mason 1938-5-10 11812 Tulare hills near Auckland 457 Comment
  UC1111584  Lotus wrangelianus Herbert L. Mason 1938-4-1 11717 Tulare 4 mi e Exeter Comment
  UC1111605  Scutellaria tuberosa Herbert L. Mason 1938-5-10 11811 Tulare sw of Badger (Auckland Ranch); General Grant National Park, Auckland Ranch Comment
  UC1179046  Logfia filaginoides Herbert L. Mason 1935-5-1 8368 Tulare n Kernville; Sequoia National Forest, Kern River Comment
  UC1191225  Malacothrix clevelandii Herbert L. Mason 1935-5-1 8372 Tulare n Kernville; Kern River, Sequoia National Forest Comment
  UC555476  Cercis occidentalis H. L. Mason 1929-3-23 5078 Tulare 3 mi above Springville; Middle Tule River Comment
  UC592142  Caulanthus coulteri H. L. Mason 1929-3-23 5076 Tulare three mi above Springville (Middle Tule River); Middle Tule River Comment
  UC592183  Pholistoma membranaceum H. L. Mason 1929-3-23 5080 Tulare 3 mi. above Springville (Middle Tule R.); Middle Tule R. Comment
  UC629718  Parvisedum congdonii H. L. Mason 1938-4-14 11703 Tulare Rocky Hill e of Exeter; Rocky Hill 304 Comment
  UC635288  Camissonia campestris subsp. campestris H. L. Mason 1929-3-23 5089 Tulare 3 mi above Springville; Middle Tule River Comment
  UC635456  Hesperomecon linearis H. L. Mason 1929-3-23 5092 Tulare 3 mi above Springville, Middle Tulare River Comment
  UC907869  Gilia modocensis Herbert L. Mason 1935-5-1 8363 Tulare Kern River n Kernville (Sequoia National Forest); , Kern River Comment
  UC908570  Gilia tricolor subsp. diffusa Herbert L. Mason 1938-4-14 11712 Tulare four mi e Exeter; e of Exeter 304 Comment
  UC908836  Gilia modocensis Herbert L. Mason 1935-5-1 8355 Tulare Kern River n Kernville (Sequoia National Forest); , Kern River Comment
  UC964757  Goodmania luteola Herbert L. Mason 1938-4-14 11701 Tulare Rocky Hill 4 mi e Exeter; Rocky Hill, e of Exeter Comment
  UC964768  Caulanthus coulteri Herbert L. Mason 1938-4-14 11702 Tulare 4 mi e Exeter (Rocky Hill); e of Exeter Comment
  CAS-BOT-BC388999  Silene laciniata subsp. californica H. L. Mason 1938-5-10 11816 Tulare Near Auckland Ranch on General Grant National Park road southwest of Badger 457 Comment
  CAS-BOT-BC483366  Calochortus amoenus H. L. Mason 1938-5-10 11819 Tulare Near Auckland Ranch on General Grant National Park road southwest of Badger 457 Comment
  RSA23405  Sedella pumila H. L. Mason 1938-4-14 11703 Tulare Rocky hills, E of Exeter. 305 Comment
  UC1178917  Thysanocarpus laciniatus Herbert L. Mason 1935-5-1 8370 Tulare Kern River above Kernville; Sequoia National Forest, Kern River Comment
  UCD104441  Acmispon strigosus Herbert L. Mason 1938-4-14 11717 Tulare 4 miles east of Exeter. Comment
  CAS-BOT-BC111997  Lipocarpha occidentalis H. L. Mason 1937-7-21 11557 Tuolumne Miguel Meadows 1645 Comment
  CAS-BOT-BC118800  Carex preslii H. L. Mason 1938-7-28 12043 Tuolumne Macomb Ridge E of Tilden Lake. 3048 Comment
  CAS-BOT-BC142862  Ivesia muirii H. L. Mason 1936-7-23 11295 Tuolumne Mount Conness - Sierra Nevada 3505 Comment
  CAS-BOT-BC153477  Diplacus layneae Herbert L. Mason 1938-7-22 11964 Tuolumne Vernon Lake Trail, north of Hetch Hetchy, Sierra Nevada, Yosemite National Park 2072 Comment
  CAS-BOT-BC157579  Solanum umbelliferum H. L. Mason 1938-7-24 11985 Tuolumne Southwest end of Moraine Ridge, west of Vernon Lake; Sierra Nevada; Yosemite National Park 2286 Comment
  CAS-BOT-BC165822  Clarkia williamsonii H. L. Mason 1925-7-4 2149 Tuolumne Near Mather Comment
  CAS-BOT-BC19875  Carex echinata subsp. echinata H. L. Mason 1938-7-10 11922 Tuolumne Yosemite National Park. South Island in Swamp Lake, west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC200437  Trisetum spicatum Herbert L. Mason 1936-7-24 11342 Tuolumne Whtie Mountain, Conness Range Comment
  CAS-BOT-BC20062  Carex echinata H. L. Mason 1938-7-10 11922 Tuolumne Yosemite National Park. South island in Swamp Lake, west of Hetch Hetch. 1584 Comment
  CAS-BOT-BC228511  Elymus elymoides Herbert L. Mason 1936-7-24 11333 Tuolumne White Mountain, Conness Range, Sierra Nevada Comment
  CAS-BOT-BC267233  Potamogeton robbinsii Herbert L. Mason 1938-7-6 11857 Tuolumne Yosemite National Park. Swamp Lake, W of Hetch Hetchy 1584 Comment
  CAS-BOT-BC267667  Eriogonum roseum Herbert L. Mason 1925-7-29 2180 Tuolumne Mather Comment
  CAS-BOT-BC270185  Viola adunca H. L. Mason 1925-7-16 2170 Tuolumne Hog Ranch, near Mather Comment
  CAS-BOT-BC28404  Carex lenticularis var. lipocarpa Herbert L. Mason 1938-7-10 11919 Tuolumne South island in Swamp Lake, W of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC31324  Carex lenticularis var. impressa H. L. Mason 1938-7-10 11919 Tuolumne South island in Swamp Lake, west of Hetch Hetchy. Yosemite National Park. 1584 Comment
  CAS-BOT-BC348645  Micropus californicus var. californicus H. L. Mason 1936-4-13 11090 Tuolumne Italian Bar Comment
  JEPS21889  Utricularia macrorhiza Herbert L. Mason and L. W. Reinecke 1937-7-22 11594 Tuolumne w. Hetch Hetchy Dam (just s. of Miguel Meadows, Swamp Lake); Yosemite Nat'l Park, Swamp Lake 1584 Comment
  JEPS45765  Elatine triandra Herbert L. Mason 1923-7-15 608 Tuolumne 2 mi w Mather (Slat Log meadow) Comment
  POM256411  Bulbostylis capillaris H. L. Mason 1938-7-6 11858 Tuolumne Between Swamp Lake and Miguel Meadow. 1646 Comment
  POM256521  Carex cusickii H. L. Mason 1938-7-10 11923 Tuolumne South island in Swamp Lake, west of Hetch Hetchy, 1585 Comment
  POM312962  Sparganium angustifolium H. L. Mason 1922-8-19 359 Tuolumne Dog Lake, Tuolumne Meadows, Yosemite National Park. 2744 Comment
  SBBG28059  Allophyllum integrifolium H. L. Mason 1941-7-12 12479 Tuolumne Miguel Meadow, W of Hetch Hetchy Valley Comment
  SBBG64461  Allophyllum glutinosum H. L. Mason 1941-7-12 12479 Tuolumne Miguel Meadow, W of Hetch Hetchy Valley Comment
  SEINET186029 Image available Dodecatheon jeffreyi H. L. Mason 1936-7-10 11197 Tuolumne Yosemite National Park; Lukens Lake. 2560 Comment
  SEINET197688  Navarretia divaricata H. L. Mason 1941-7-12 12478 Tuolumne Yosemite National Park; Miguel Meadows, Yosemite National Park Comment
  SEINET3026080  Montia fontana Herbert L. Mason 1940-7-6 12320 Tuolumne Miguel Meadow, west of Hetch Hetchy Dam. 1580 Comment
  SEINET5764341 Image available Chenopodium botrys Herbert L. Mason 1925-1 s.n. Tuolumne Mather Comment
  UC1039540  Dodecatheon jeffreyi H. L. Mason 1922-8-22 346 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park Comment
  UC1039577  Dodecatheon jeffreyi H. L. Mason 1922-8-25 350 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC1039593  Phoradendron villosum H. L. Mason 1925-7-15 2161 Tuolumne Mather Sierra Nevada Mts., Yosemite Nat'l Park, Mather Comment
  UC1039613  Cypripedium montanum Herbert L. Mason 1940-7-7 12326 Tuolumne s Miguel Meadow; Yosemite National Park, Poison Meadow Comment
  UC1056294  Potamogeton foliosus Herbert L. Mason 1939-7-13 12141 Tuolumne Miguel Meadow, South Tuoulumne County Miguel Meadow Comment
  UC1056295  Carex buxbaumii Herbert L. Mason 1939-7-11 12115 Tuolumne marsh 1/2 mi below Swamp Lake; Yosemite National Park 1554 Comment
  UC1056425  Lewisia triphylla Herbert L. Mason 1936-7-15 11246 Tuolumne 1/2 mi w Mather; Sierra Nevada 1371 Comment
  UC1056444  Cryptantha glomeriflora Herbert L. Mason 1936-7-27 11386 Tuolumne w of Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1056972  Meconella californica Herbert L. Mason 1936-3-21 11038 Tuolumne head of Moccasin Creek Comment
  UC1056973  Brasenia schreberi Herbert L. Mason 1936-7-15 11246 Tuolumne 1/2 mi w Mather (margin of pool); w of Mather 1371 Comment
  UC1056992  Drosera rotundifolia Herbert L. Mason and L. W. Reinecke 1957-7-22 11578 Tuolumne just s Miguel Meadows (in hills just w of Hetch Hetchy); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1076398  Sambucus mexicana Herbert L. Mason 1925-6-27 2128 Tuolumne Mather Comment
  UC1076408  Lonicera cauriana H. L. Mason 1923-7-30 673 a Tuolumne Tuolumne Meadows; Lyell Fork of the Tuolumne River; Yosemite National Park Comment
  UC1076489  Herniaria hirsuta subsp. hirsuta Herbert L. Mason 1923-7-21 636 Tuolumne Hetch Hetchy , Hetch Hetchy (Yosemite National Park) Comment
  UC1076530  Lathyrus sulphureus Herbert L. Mason 1936-3-20 11012 Tuolumne 3 mi above Tuolumne Meadows; Sierra Nevada, Yosemite National Park Comment
  UC1076534  Spiranthes stellata Herbert L. Mason and L. W. Reinecke 1937-7-22 11626 Tuolumne w Hetch Hetchy; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1076535  Phacelia racemosa Herbert L. Mason 1938-7-22 11961 Tuolumne n Hetch Hetchy; Sierra Nevada, Yosemite National Park, Beehive 1996 Comment
  UC1076536  Drosera rotundifolia Herbert L. Mason 1938-7-6 11853 Tuolumne w Hetch Hetchy; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1076542  Phacelia eisenii var. eisenii Herbert L. Mason 1938-7-25 12013 Tuolumne Deep Lake Sierra Nevada, Yosemite National Park, Mahan Peak, Jack Main (s base of peak) 2438 Comment
  UC1077092  Boechera arcuata Herbert L. Mason 1938-7-7 11870 Tuolumne between Swamp Lake and Hetch Hetchy (Brecca ridge); Yosemite National Park 1981 Comment
  UC1077093  Erysimum perenne Herbert L. Mason 1938-7-28 12033 Tuolumne e Tilden Lake; Sierra Nevada, Yosemite National Park, Macomb Ridge 3048 Comment
  UC1077097  Lycopus uniflorus Herbert L. Mason 1938-7-10 11910 Tuolumne s. island in Swamp Lake (w. of Hetch Hetchy); Sierra Nevada, Yosemite Nat'l Park, Swamp Lake 1584 Comment
  UC1077099  Saxifraga aprica Herbert L. Mason 1938-7-28 12025 Tuolumne Macomb Ridge e of Tilden Lake; Sierra Nevada, Yosemite National Park, Macomb Ridge 3048 Comment
  UC1077108  Pteryxia terebinthina var. californica Herbert L. Mason 1938-7-28 12040 Tuolumne Yosemite National Park, Macomb Ridge east of Tilden Lake 3048 Comment
  UC1081530  Pyrrocoma apargioides Herbert L. Mason 1936-7-27 11374 Tuolumne w of Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1081551  Streptanthus tortuosus Herbert L. Mason 1936-3-21 11040 Tuolumne head of Moccasin Creek Sierra Nevada, Yosemite National Park Comment
  UC1081571  Berberis aquifolium var. dictyota Herbert L. Mason 1936-3-21 11041 Tuolumne Moccasin Creek Power House Comment
  UC1081574  Ribes lasianthum Herbert L. Mason 1936-7-10 11186 Tuolumne se White Wolf (Lukens Lake); Sierra Nevada, Yosemite National Park 2560 Comment
  UC1083127  Aquilegia formosa Herbert L. Mason 1936-7-27 11369 Tuolumne w Tioga Pass (Gaylor Lakes); Sierra Nevada, Yosemite National Park 3200 Comment
  UC1093880  Wyethia angustifolia Herbert L. Mason 1938-7-22 11979 Tuolumne n Hetch Hetchy (Vernon Lake Trail, Yosemite National Park); Sierra Nevada, Yosemite National Park 2072 Comment
  UC1093881  Arnica mollis Herbert L. Mason 1938-7-30 12053 Tuolumne Tiltill Mountain (south end) Sierra Nevada, Yosemite National Park, Tiltill Mountain 2590 Comment
  UC1093884  Prunus emarginata Herbert L. Mason 1938-7-25 11994 Tuolumne s base of Mahan Peak (Deep Lake, Jack Main Canyon, Yosemite National Park); Sierra Nevada, Yosemite National Park, Deep Lake 2438 Comment
  UC1093908  Spiranthes stellata Herbert L. Mason 1938-7-7 11877 Tuolumne w Hetch Hetchy; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1093912  Garrya fremontii Herbert L. Mason 1943-4-16 12567 Tuolumne 4 mi above Long Barn (on Highway 108); Bald Mountain Comment
  UC1093958  Montia fontana Herbert L. Mason 1936-3-20 11007 Tuolumne 3 mi above Tuolumne Meadows (Yosemite National Park); Sierra Nevada, Yosemite National Park Comment
  UC1099812  Sparganium angustifolium Herbert L. Mason 1922-8-19 359 Tuolumne Dog Lake; Yosemite National Park, Tuolumne Meadows 2743 Comment
  UC1100615  Eleocharis bella Herbert L. Mason, Lawrence W. Reinecke 1937-7-22 11598 Tuolumne Swamp Lakes, just S of Miguel Meadows and W of Hetch Hetchy Dam Yosemite National Park Comment
  UC1101138  Polygonum amphibium var. stipulaceum Herbert L. Mason and Lawrence M. Reinecke 1937-7-22 11616 Tuolumne just w Hetch Hetchy Dam (s of Miguel Meadows); Yosemite National Park, Swamp Lakes 1584 Comment
  UC1101412  Brasenia schreberi Herbert L. Mason 1939-7-11 12126 Tuolumne w Hetch Hetchy Dam (Swamp Lake, just s of Miguel Meadows, Yosemite National Park); Yosemite National Park, w of Hetch Hetchy Dam, Swamp Lake 1584 Comment
  UC1101466  Utricularia macrorhiza Herbert L. Mason 1937-7-22 11916 Tuolumne w. Hetch Hetchy (s. of Miguel Meadows, s. ilsand of Swamp lake); Yosemite Nat'l Park, Swamp Lake 1584 Comment
  UC1101530  Elatine brachysperma Herbert L. Mason 1936-7-15 12757 Tuolumne 0.5 mi w Mather; Sierra Nevada Comment
  UC1101551  Elatine brachysperma Herbert L. Mason 1923-7-15 608 Tuolumne 2 mi w Mather (Salt Log Meadow) Comment
  UC1102954  Carex buxbaumii Herbert L. Mason 1958-8-6 14853 Tuolumne w Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake meadow 1584 Comment
  UC1102955  Carex buxbaumii Herbert L. Mason 1958-8-9 14897 Tuolumne w side of Hetch Hetchy Dam (meadow at Swamp Lake); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1102956  Eleocharis macrostachya Herbert L. Mason 1958-8-9 14872 Tuolumne W of Hetch Hetchy Dam (Swamp Lake meadow); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1102968  Deschampsia danthonioides Herbert L. Mason 1958-8-9 14890 Tuolumne w. of Hetch Hetchy Dam (Swamp Lake area); Sierra Nevada, Yosemite Nat'l Park, Swamp Lake area 1584 Comment
  UC1102970  Muhlenbergia filiformis Herbert L. Mason 1958-8-9 14891 Tuolumne w Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake area 1584 Comment
  UC1102971  Danthonia californica var. americana Herbert L. Mason 1958-8-9 14889 Tuolumne w Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake area 1584 Comment
  UC1102976  Galium trifidum var. pusillum Herbert L. Mason 1958-8-9 14879 Tuolumne w Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park< Swamp Lake area 1584 Comment
  UC1106397  Montia fontana Herbert L. Mason 1940-7-6 12320 Tuolumne Miguel Meadow w of Hetch Hetchy Dam (Yosemite National Park); Sierra Nevada, , Miguel Meadow 1584 Comment
  UC1108822  Poa secunda subsp. secunda Herbert L. Mason 1938-7-25 11989 Tuolumne deep lake at e base of Mahan Peak; Sierra Nevada, Yosemite Nat'l Park Comment
  UC1108827  Bromus carinatus var. carinatus Herbert L. Mason 1938-7-22 11970 Tuolumne n of Hetch Hetchy Valley (Yosemite National Park, Vernon Trail Lake); Sierra Nevada, Yosemite National Park, Vernon Trail Lake 1981 Comment
  UC1108829  Elymus sierrae Herbert L. Mason 1938-7-28 12029 Tuolumne Macomb Ridge Sierra Nevada, Yosemite National Park (n of Tiltill Mt.) 3017 Comment
  UC1108831  Poa secunda subsp. secunda Herbert L. Mason 1937-7-22 11965 Tuolumne n of Hetch Hetchy Valley Beehive; Sierra Nevada, Yosemite Nat'l Park Comment
  UC1111562  Mimulus laciniatus Herbert L. Mason 1938-7-25 12004 Tuolumne s base Mahan Peak (Jack Main Canyon, Deep Lake); Sierra Nevada, Yosemite National Park 2438 Comment
  UC1111563  Phacelia eisenii Herbert L. Mason 1938-7-27 12023 Tuolumne se side Bailey Ridge; Sierra Nevada, Yosemite National Park 2438 Comment
  UC1178815  Sclerolinon digynum Herbert L. Mason 1940-7-6 12321 Tuolumne w of Hetch Hetchy Dam (Miguel Meadows); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1178867  Veronica scutellata Herbert L. Mason 1939-7-11 12124 Tuolumne 1/2 mi below Swamp Lake (w of Hetch Hetchy, Yosemite National Park); Sierra Nevada, Yosemite National Park 1584 Comment
  UC1179072  Hieracium triste Herbert L. Mason 1937-8-31 14838 Tuolumne w of Saurian Crest; Yosemite National Park. Grace Meadow 2651 Comment
  UC1179077  Erigeron coulteri Herbert L. Mason 1937-7-30 14816 Tuolumne above Mary Lake (Saurian Crest); Sierra Nevada, Yosemite National Park, Saurian Crest 3352 Comment
  UC1186140  Navarretia capillaris Herbert L. Mason 1938-7-29 12049 Tuolumne Saurian Crest northern Yosemite National Park, Saurian Crest (northern part of Yosemite National Park) Comment
  UC1186144  Collomia grandiflora Herbert L. Mason 1938-7-7 11871 Tuolumne se Swamp Lake (w of Hetch Hetchy); Yosemite National Park, Breccia Ridge 1584 Comment
  UC1186146  Leptodactylon pungens Herbert L. Mason 1938-7-25 11999 Tuolumne Deep Lake at e base Mahan Peak (Yosemite National Park); , Deep lake e base Mahan Peak Comment
  UC1189249  Downingia montana Herbert L. Mason 1939-7-13 12140 Tuolumne woods around Miguel Meadows Yosemite National Park Comment
  UC1191226  Agoseris aurantiaca Herbert L. Mason 1940-7-6 12315 Tuolumne west Hetch Hetchy Dam ((at Miguel Meadow)); Yosemite National Park, Miguel Meadow 1584 Comment
  UC1191673  Menyanthes trifoliata Herbert L. Mason 1938-7-10 11924 Tuolumne w of Hetch Hetchy (south island in Swamp Lake, Yosemite National Park); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1195912  Ranunculus orthorhynchus var. orthorhynchus Herbert L. Mason 1958-8-9 14885 Tuolumne Swamp Lake Sierra Nevada, Yosemite National Park, Hetch Hetchy Dam (w side of dam) 1584 Comment
  UC1195917  Veronica scutellata Herbert L. Mason 1958-8-9 14849 Tuolumne w of Hetch Hetchy DAm (Swamp Lake, Yosemite National Park); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1195919  Hypericum formosum var. scouleri Herbert L. Mason 1958-8-9 14873 Tuolumne w. Hetch Hetchy Dam (meadow at Swamp lake); Sierra Nevada, Yosemite Nat'l Park 1584 Comment
  UC1199838  Allium tribracteatum Herbert L. Mason 1938-7-25 12026 Tuolumne Bailey Ridge Sierra Nevada, Yosemite National Park, Bailey Ridge 2834 Comment
  UC1212208  Sclerolinon digynum Herbert L. Mason 1939-7-11 12119 Tuolumne 0.5 mi below Swamp Lake (nw part of Yosemite National Park); Yosemite National Park 1554 Comment
  UC240192  Typha latifolia Herbert L. Mason 1958-8-6 Tuolumne w Hetch Hetchy (Swamp Lake, Yosemite National Park); Sierra Nevada, Yosemite National Park, w of Hetch Hetchy 1584 Comment
  UC525883  Sambucus mexicana H. L. Mason 1925-6-27 2128 Tuolumne Mather Comment
  UC555554  Fragaria virginiana subsp. platypetala H. L. Mason 1922-8-23 Tuolumne junction of Lyell Fork and Dana Fork Tuolumne River (Tuolumne Meadows); Yosemite National Park, Tuolumne Meadows Comment
  UC555570  Trifolium wormskioldii H. L. Mason 1925-7-4 2145 Tuolumne Mather Sierra Nevada, Yosemite National Park Comment
  UC565524  Hieracium triste H. L. Mason 1923-8-3 707 Tuolumne w of Unicorn Creek; Yosemite National Park, Tuolumne Meadows Comment
  UC566650  Packera werneriifolia H. L. Mason 1922-8-2 341 Tuolumne Mt. Dana Sierra Nevada Mountains, , Mt. Dana (Yosemite National Park) Comment
  UC566928  Asclepias cordifolia H. L. Mason 1923-7-14 598 Tuolumne e Mather (near Hog Ranch) Comment
  UC570725  Prunella vulgaris var. lanceolata H. L. Mason 1923-7-16 614 Tuolumne Hog Ranch Yosemite National Park; Sierra Nevada Mountains, Yosemite National Park Comment
  UC573156  Amsinckia lycopsoides Herbert L. Mason 1935-6-27 2115 Tuolumne Hog Ranch; Mather Comment
  UC581501  Viola adunca H. L. Mason 1923-7-28 655 Tuolumne White Wolf, Tioga Pass Road White Wolf 2438 Comment
  UC592129  Nemophila spatulata H. L. Mason 1925-7-16 2167 Tuolumne Hog Ranch Sierra Nevada Mountains, Yosemite Natl Park, Mather, Hog Ran (Yosemite National Park) Comment
  UC592144  Streptanthus tortuosus Herbert L. Mason 1925-7-9 2151 Tuolumne Mather 1432 Comment
  UC595051  Nemophila spatulata H. L. Mason 1938-7-10 11941 Tuolumne Miguel Meadows , Miguel Meadows (Yosemite National Park) 1584 Comment
  UC599126  Carex preslii H. L. Mason 1938-7-25 11987 Tuolumne south base of Mahan Peak (Jack Main Canyon); Yosemite National Park 2438 Comment
  UC599131  Carex raynoldsii H. L. Mason 1938-7-26 12021 Tuolumne Meadows Jack Main; Yosemite National Park, Andrew Peak 2438 Comment
  UC599138  Trichophorum clementis H. L. Mason 1936-7-27 11387 Tuolumne nw Tioga Pass (Upper Gaylor Lake, Yosemite National Park); Yosemite National Park, Upper Gaylor Lake, nw of Tioga Pass 3230 Comment
  UC629705  Cyperus squarrosus H. L. Mason 1938-7-10 11903 Tuolumne w. Hetch Hetchy (Miguel Meadow); Yosemite Nat'l Park, Miguel Meadow 1584 Comment
  UC629709  Lipocarpha occidentalis H. L. Mason 1938-7-10 11904 Tuolumne w of Hetch-Hetchy (Yosemite National Park, Miguel Meadow); Yosemite National Park, Miguel Meadow 1584 Comment
  UC632752  Bulbostylis capillaris H. L. Mason 1938-7-11 11934 Tuolumne w of Hetch Hetchy; Miguel Meadow 1584 Comment
  UC632766  Trifolium microcephalum H. L. Mason 1938-7-22 11973 Tuolumne n Hetch Hetchy (Bernon Lake Trail); Sierra Nevada, Yosemtie National Park 2072 Comment
  UC632777  Cyperus squarrosus H. L. Mason 1938-8-1 12070 Tuolumne Tiltill Valley Yosemite Nat'l Park, Tiltill Valley 1676 Comment
  UC632854  Micropus californicus var. californicus H. L. Mason 1936-4-13 11090 Tuolumne Italian Bar Comment
  UC634553  Salix petrophila H. L. Mason 1923-8-2 695 Tuolumne cirque w of Johnson Peak (near Elizabeth Lake) Comment
  UC634741  Rhododendron occidentale H. L. Mason 1923-7-20 625 Tuolumne Hog Ranch, Middle Fork Hog Ranch; , Middle Fork Comment
  UC635008  Eriogonum spergulinum var. spergulinum H. L. Mason 1928-7-4 4871 Tuolumne Tuolumne Meadows Comment
  UC635071  Chorizanthe membranacea Herbert L. Mason 1925-6-27 2117 Tuolumne Hog Ranch Mather, Hog Ranch Comment
  UC635095  Ranunculus occidentalis H. L. Mason 1923-7-19 615 Tuolumne Mather Comment
  UC635108  Aquilegia pubescens H. L. Mason 1923-7-31 678 Tuolumne Dana Fork Sierra Nevada Mtns Comment
  UC635178  Stachys ajugoides var. rigida H. L. Mason 1925-7-16 2168 Tuolumne near Mather (Hog Ranch) Comment
  UC635202  Aesculus californica Herbert L. Mason 1925-6-27 2129 Tuolumne near Mather (Tuolumne Canyon); Tuolumne Canyon Comment
  UC635250  Allium obtusum H. L. Mason 1928-7-5 4878 Tuolumne near Gaylor Lakes (vicinity of Tioga Pass); Sierra Nevada 2895 Comment
  UC635328  Claytonia parviflora subsp. parviflora H. L. Mason 1925-7-27 2177 Tuolumne Hog Ranch, Mather; Mather Comment
  UC635638  Campanula prenanthoides H. L. Mason 1925-8-11 2218 Tuolumne Big Oak Flat Road to Tuolumne Grove Comment
  UC635691  Heterocodon rariflorum H. L. Mason 1923-7-12 578 Tuolumne Mather; Sierra Nevada Mountains, Yosemite National Park Comment
  UC635711  Downingia montana H. L. Mason 1923-7-24 641 Tuolumne Hog Ranch, Mather Sierra Nevada Mountains, Yosemite National Park, Mather 1432 Comment
  UC635726  Lipocarpha occidentalis Herbert L. Mason 1937-7-21 11557 Tuolumne Yosemite National Park, Miguel Meadows Miguel Meadows; Yosemite National Park, Miguel Meadows 1645 Comment
  UC641789  Rumex paucifolius H. L. Mason 1936-7-23 11286 Tuolumne Mount Conness Sierra Nevada, Tioga Pass Region Comment
  UC641820  Eriogonum ovalifolium var. nivale H. L. Mason 1936-7-24 11327 Tuolumne White Mountain Sierra Nevada, Mount Conness Range, White Mountain Comment
  UC642674  Lewisia glandulosa H. L. Mason 1936-7-23 11283 Tuolumne alpine slopes of Mount Conness Sierra Nevada, Mount Conness Comment
  UC642872  Erysimum perenne H. L. Mason 1936-7-23 11280 Tuolumne Mount Conness Sierra Nevada Comment
  UC672121  Disporum hookeri Herbert L. Mason July, 1924 1100 Tuolumne Mather, Middle Fork of the Tuolumne River Middle Fork Tuolumne River; Mather, Middle Fork Tuolumne River Comment
  UC672222  Solidago elongata H. L. Mason 1923-7-25 646 Tuolumne Hog Ranch Sierra Nevada Mountains, Mather, Hog Ranch (Mather, Sierra Nevada Mountains) Comment
  UC672264  Ericameria bloomeri H. L. Mason 1923-9-18 764 Tuolumne White Wolf Sierra Nevada Mountains, Yosemite National Park, White Wolf Comment
  UC672345  Phacelia quickii H. L. Mason 1924-5-29 1024 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC672510  Veronica scutellata H. L. Mason 1925-7-4 2147 Tuolumne Mather Comment
  UC672513  Veronica serpyllifolia subsp. humifusa H. L. Mason 1925-7-30 2194 Tuolumne ne of Mather (Smith Peak trail); Smith Peak trail Comment
  UC672533  Mimulus torreyi H. L. Mason 1923-7-14 594 Tuolumne Mather Comment
  UC672535  Mimulus pulchellus H. L. Mason 1923-7-9 590 Tuolumne Mather Comment
  UC672623  Botrychium multifidum H. L. Mason 1923-8-8 724 Tuolumne Tuolumne Meadows, Morrain[sic] Flat Sierra Nevada Mountains, Yosemite National Park Comment
  UC672625  Botrychium simplex H. L. Mason 1923-7-30 676 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park Comment
  UC673388  Dodecatheon jeffreyi H. L. Mason 1922-7-22 318 Tuolumne Aspen Valley Sierra Nevada Mountains, Yosemite National Park Comment
  UC673497  Dodecatheon jeffreyi H. L. Mason 1922-7-22 318 Tuolumne Aspen Valley Sierra Nevada Mountains, Yosemite National Park Comment
  UC673516  Zigadenus venenosus var. venenosus H. L. Mason 1923-7-12 581 Tuolumne Mather Comment
  UC673572  Spiranthes stellata Herbert L. Mason 1923-7-21 639 Tuolumne Poopenaut Valley Sierra Nevada, Yosemite National Park, vicinity of Hetch Het Comment
  UC712358  Castilleja nana Herbert L. Mason 1936-7-23 11287 Tuolumne Mount Conness 3505 Comment
  UC712400  Antennaria media H. L. Mason 1936-7-23 11273 Tuolumne alpine slopes of Mount conness; Sierra Nevada 3505 Comment
  UC712403  Antennaria media Herbert L. Mason 1936-7-24 11344 Tuolumne Conness Range Sierra Nevada, Yosemite National Park, White Moutain, Connes 3505 Comment
  UC712506  Erigeron pygmaeus H. L. Mason 1936-7-24 11346 Tuolumne White Mountain Sierra Nevada, Mount Conness Range, White Mountain 3505 Comment
  UC712649  Penstemon davidsonii var. davidsonii Herbert L. Mason 1936-7-23 11291 Tuolumne Mount Conness Sierra Nevada 3505 Comment
  UC714376  Astragalus kentrophyta var. danaus H. L. Mason 1936-7-30 11446 Tuolumne vicinity Mount Conness (Shepherds Crest); Sierra Nevada, vicin Mount Conness, Shepherds Crest Comment
  UC714411  Erigeron compositus Herbert L. Mason 1936-7-26 11388 Tuolumne moraine flat near Gaylor Lakes; Sierra Nevada 3048 Comment
  UC714475  Packera werneriifolia H. L. Mason 1936-7-23 11308 Tuolumne slopes Mount Conness (Sierra Nevada); , Mount Conness 3505 Comment
  UC907960  Phlox gracilis Herbert L. Mason 1941-7-12 12480 Tuolumne nw of Hetch-Hetchy Dam; Yosemite National Park, Miguel Meadows Comment
  UC908029  Phlox gracilis Herbert L. Mason 1928-7-4 4869 Tuolumne Tuolumne Meadows Comment
  UC908211 Image available Navarretia divaricata Herbert L. Mason 1941-6-10 12484 Tuolumne east of North Mountain, North Mountain Ridge, Yosemite National Park, Comment
  UC909138  Phlox gracilis Herbert L. Mason 1928-7-5 4873 Tuolumne Tioga Pass Comment
  UC912218  Antennaria argentea Herbert L. Mason 1925-6-27 2119 Tuolumne near, (Hog Ranch) Mather Comment
  UC912377  Calystegia malacophylla subsp. malacophylla H. L. Mason 1925-7-4 2144 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park, Mather (Yosemite National Park, Sierra Nevada Mountains) Comment
  UC912487  Anaphalis margaritacea Herbert L. Mason 1922-7-19 311 Tuolumne Lodge Meadow Comment
  UC912538  Lessingia leptoclada H. L. Mason 1925-7-29 2183 Tuolumne Hog Ranch Mather Comment
  UC912591  Madia elegans H. L. Mason 1925-6-24 2104 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC912636  Holcus lanatus Herbert L. Mason 1925-7-31 2205 Tuolumne Hog Ranch Mather (Mather) Comment
  UC936171  Minuartia nuttallii subsp. gracilis Herbert L. Mason 1936-7-24 11320 Tuolumne White Mountain Yosemite National Park, Conness Range Comment
  UC962125  Vaccinium cespitosum Herbert L. Mason 1923-8-2 696 Tuolumne w of Johnson Peak; Elizabeth Lake Comment
  UC962127  Vaccinium uliginosum subsp. occidentale H. L. Mason 1923-7-31 677 Tuolumne Dana Fork Sierra Nevada Mountains, Yosemite National Park Comment
  UC971867  Limnanthes striata Charles T. Mason Jr. 1949-5-9 1292 Tuolumne 1.3 mi w Chinese Camp (ditch on s side of State Hwy 120) Comment
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Oct 25 2009
  UC972238  Linanthus filipes Herbert L. Mason 1936-4-13 11087 Tuolumne Italian Bar Comment
  UCD138306  Potamogeton robbinsii Herbert L. Mason; Lawrence W. Reinecke 1937-7-22 11602 Tuolumne Swamp Lakes, just north of Miguel Meadows in the hills just west of Hetch Hetchy dam. Yosemite National Park. Comment
  UCD39810  Navarretia vividior Herbert L. Mason 1941-7-12 12480 a Tuolumne Yosemite National Park, Miguel Meadows. 1889 Comment
Read comments
Aug 18 2015
  UCD48471  Navarretia intertexta H. L. Mason 1925-7-16 2174 Tuolumne Meadows; Mather, Sierra Nevada, Tuolumne County. 1432 Comment
  UCD53002  Agrostis oregonensis H. L. Mason 1939-7-28 11971 Tuolumne Vernon Lake Trail, north and east of Hetch-Hetchy, Yosemite National Park. Comment
  UCD57206  Calamagrostis canadensis H. L. Mason 1958-8-6 14862 Tuolumne Yosemite National Park, NW of Hetch-Hetchy, Swamp Lake meadow. Comment
  UCD57234  Calamagrostis canadensis H. L. Mason 1938-7-10 11914 Tuolumne Yosemite National Park, northwest of Hetch-Hetchy, South Island of Swamp Lake. Comment
  UCD61353  Danthonia unispicata H. L. Mason 1938-7-25 12012 Tuolumne At east base of Mahan Peak, Yosemite Natl. Park. Comment
  UCD61430  Elymus elymoides H. L. Mason 1936-7-23 11313 Tuolumne Mt. Conness, Yosemite Natl. Park. Comment
  UCD62342  Elymus glaucus subsp. glaucus H. L. Mason 1938-7-22 11974 Tuolumne Vernon Lake Trail, north and east of Hetch-Hetchy, Yosemite Natl. Park. Comment
  UCD65819  Festuca brachyphylla subsp. breviculmis H. L. Mason 1936-7-23 11293 Tuolumne Yosemite National Park. Alpine slopes of Mt. Conness. Comment
  UCD66424  Festuca saximontana var. purpusiana H. L Mason 1936-7-24 11334 Tuolumne White Mountain. Comment
  UCD86260  Melica aristata H. L. Mason 1939-7-12 12130 Tuolumne Yosemite National Park, northwest of Hetch-Hetchy. Near Swamp Lake. Comment
  UCD86813  Muhlenbergia montana H. L. Mason 1938-7-22 11972 Tuolumne Vernon Lake Trail, north and east of Hetch-Hetchy, Yosemite Natl. Park. Comment
  UCD88711  Panicum acuminatum var. fasciculatum H. L. Mason 1958-8-6 14870 Tuolumne Yosemite National Park, NW of Hetch-Hetchy, Swamp Lake meadow. Comment
  YM-YOSE65391  Carex buxbaumii H. L. Mason 1938-7-10 11915 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE 1584 Comment
  YM-YOSE65410  Carex cusickii H. L. Mason 1938-7-10 11923 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND 1584 Comment
  YM-YOSE65566  Dulichium arundinaceum H. L. Mason 1938-7-10 11920 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE66536  Potamogeton natans H. L. Mason 1938-7-11 11944 Tuolumne SWAMP LAKE RESEARCH RESERVE. OFF SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE66547  Utricularia gibba Harry L. Mason 1938-7-6 11854 Tuolumne SWAMP LAKE RESEARCH RESERVE, SOUTH ISLAND OF LAKE 1554 Comment
  YM-YOSE66553  Utricularia Harry L. Mason 1938-7-6 11854 Tuolumne SWAMP LAKE RESEARCH RESERVE, SOUTH ISLAND OF SWAMP LAKE 1554 Comment
  CAS-BOT-BC114173  Cyperus squarrosus H. L. Mason 1938-7-10 11903 Tuolumne Margin of lake at gravel pit, Miguel Meadow, west of Hetch-Hetchy. 1584 Comment
  CAS-BOT-BC153813  Erythranthe filicaulis C. T. Mason, Jr. 1954-6-7 1545 Tuolumne East of Carnegie Institution Camp, Hog Ranch, Mather 1371 Comment
  CAS-BOT-BC153819  Erythranthe filicaulis C. T. Mason, Jr. 1954-6-7 1545 Tuolumne East of Carnegie Institution Camp, Hog Ranch, Mather 1371 Comment
  CAS-BOT-BC153936  Diplacus pulchellus C. T. Mason, Jr. 1954-6-7 1546 Tuolumne East of Carnegie Institution Camp, Hog Ranch, Mather 1371 Comment
  CAS-BOT-BC16799  Delphinium polycladon Herbert L. Mason; L. W. Reinecke 1937-7-28 14822 Tuolumne Mary Lake 2895 Comment
  CAS-BOT-BC215682  Lycopus uniflorus Herbert L. Mason 1938-8-1 12062 Tuolumne Tiltill Valley, Rancheria Mountian Trail, Yosemite National Park, Sierra Nevada 1828 Comment
  CAS-BOT-BC254506  Dichanthelium acuminatum subsp. acuminatum Herbert L. Mason 1958-8-9 14871 Tuolumne Yosemite National Park. Swamp Lake area, W side of Hetch Hetchy Dam 1584 Comment
  CAS-BOT-BC287150  Coreopsis stillmanii Herbert L. Mason 1936-3-21 11019 Tuolumne Four miles N of Coulterville Comment
  CAS-BOT-BC400774  Asarum lemmonii H. L. Mason 1925-8-11 2213 Tuolumne Sierra Nevada Mountains, Yosemite National Park. On tributary of North Crane Creek. Near Tuolumne Big Trees Comment
  CAS-BOT-BC413675  Persicaria amphibia Herbert L. Mason 1937-7-22 11616 Tuolumne Swamp Lakes, just west of Hetch Hetchy Dam and south of MIguel Meadows, Yosemite National Park 1584 Comment
  CAS-BOT-BC418601  Polygonum minimum Herbert L. Mason 1937-7-31 14839 Tuolumne Sierra Nevada, Yosemite National Park. Grace Meadow, just west of Saurian Crest 2651 Comment
  CAS-BOT-BC56382  Kalmia microphylla subsp. microphylla Herbert L. Mason; L. W. Reinecke 1937-7-22 11585 Tuolumne Swamp Lake, just south of Miguel Meadows in the hills just west of Hetch Hetchy 1584 Comment
  JEPS60084  Polystichum imbricans subsp. imbricans H. L. Mason 1923-7-21 629 Tuolumne tracks near summit of grade Hetch Hetchy R.R.; Sierra Nevada Mts., Yosemite Nat'l Park Comment
  POM257278  Clarkia rhomboidea H. L. Mason 1925-7-4 2150 Tuolumne Mather. Comment
  POM289573  Coreopsis stillmanii H. L. Mason 1936-3-21 11019 Tuolumne 4 miles north of Coulterville Comment
  POM312316  Elatine brachysperma H. L. Mason 1923-7-15 608 Tuolumne Plants growing in very wet soil, and in shallow water, salt Log Meadow, 2 miles W of Mather Comment
  POM312963  Sparganium angustifolium H. L. Mason, L. M. Reinecke 1937-7-22 11603 Tuolumne Swamp Lakes just south of Miguel Meadows, north of Hetch Hetchy Dam, Yosemite National Park. 1585 Comment
  RSA101796  Mimulus torreyi H. L. Mason 1923-7-14 594 Tuolumne Mather. Comment
  RSA21825  Carex whitneyi H. L. Mason 1938-7-30 12055 Tuolumne South end of Tiltill Mountain. Yosemite National Park. 2591 Comment
  SEINET10492526  Clarkia rhomboidea Herbert L. Mason 1925-7-4 Mason 2150 Tuolumne Mather, California Comment
  SEINET12188317  Rotala ramosior H. L. Mason 1936-1 11256 Tuolumne 0.5 mi W of Mather 1372 Comment
  SEINET7583590 Image available Eleocharis bella H. L. Mason 1938-7-11 11930 Tuolumne Yosemite National Park, Miguel Meadow, west of Hetch Hetchy. 1585 Comment
  SEINET7585735 Image available Lipocarpha occidentalis H. L. Mason 1938-7-10 11904 Tuolumne Yosemite National Park, Miguel Meadow, west of Hetch-Hetchy. 1585 Comment
  SEINET8729361 Image available Navarretia divaricata Herbert L. Mason 1941-1 12480 a Tuolumne Miguel Meadows, Yosemite National Park. 1890 Comment
  UC1039533  Dodecatheon subalpinum Herbert L. Mason 1923-7-28 657 Tuolumne Tioga Road between Yosemite Creek bridge and Porcupine Flat; Yosemite National Park, btw Yosemite Crk bridge and Porcupin Comment
  UC1039579  Dodecatheon jeffreyi H. L. Mason 1922-8-2 338 Tuolumne Lyell Fork Tuolumne River Sierra Nevada Mountains, Yosemite National Park (Tuolumne Meadows) Comment
  UC1056432  Limnanthes alba Herbert L. Mason 1936-3-20 11017 Tuolumne three mi above Tuolumne; Sierra Nevada, Yosemite National Park Comment
  UC1179002  Dodecatheon hendersonii Herbert L. Mason with H. M. Hall and H. E. McMinn 1923-5-9 365 a Tuolumne Big Oak Flat road near South Fork, Big Oak Flat road (South Fork) Comment
  UC555414  Lotus strigosus H. L. Mason 1923-7-15 602 Tuolumne Salt Log Meadow Sierra Nevada Mountains, Yosemite National Park Comment
  UC566916  Centaurium venustum H. L. Mason 1923-7-15 601 Tuolumne Salt Log Meadow Sierra Nevada Mountains, Yosemite National Park Comment
  UC599118  Carex multicaulis H. L. Mason 1938-7-8 11882 Tuolumne n Swamp Lake; Yosemite National Park, Hetch Hetchy drainage 1615 Comment
  UC632807  Nemophila heterophylla H. L. Mason 1936-3-24 11014 Tuolumne three mi above Tuolumne; above Tuolumne Comment
  UC634948  Thalictrum fendleri H. L. Mason 1923-7-28 660 Tuolumne Porcupine Flat Sierra Nevada Mountains Comment
  UC635257  Allium campanulatum H. L. Mason 1924-5-29 1030 Tuolumne along trail between Mather and Tuolumne River Comment
  UC673484  Cicuta douglasii H. L. Mason 1940-7-7 12325 Tuolumne Tuolumne River drainage sw of Hetch Hetchy ( Yosemite National Park, Poison Meadow); Sierra Nevada, Yosemite National Park, Poison Meadow 1524 Comment
  UC673574  Spiranthes stellata H. L. Mason 1923-7-25 649 Tuolumne Mather Spring Sierra Nevada Mountains, Yosemite National Park, Hog Ranch Comment
  YM-YOSE63810  Erigeron breweri Harry L. Mason 1938-7-7 11869 Tuolumne SWAMP LAKE RESEARCH RESERVE Comment
  YM-YOSE65519  Carex preslii H. L. Mason 1938-7-30 12059 Tuolumne SOUTH END TILTILL MTN. 2590 Comment
  YM-YOSE65526  Carex raynoldsii H. L. Mason 1938-7-30 12057 Tuolumne SOUTH END OF TILTILL MT. 2590 Comment
  YM-YOSE65580  Eleocharis bella H. L. Mason 1938-7-11 11930 Tuolumne SWAMP LAKE RESEARCH RESERVE. MIGUEL MEADOWS Comment
  YM-YOSE65705  Juncus triformis H. L. Mason 1938-7-11 11939 Tuolumne SWAMP LAKE RESEARCH RESERVE. GRAVEL PIT LAKE. MIGUEL MEADOW Comment
  YM-YOSE66933  Glyceria borealis H. L. Mason 1938-7-9 11899 Tuolumne SWAMP LAKE RESEARCH RESERVE. SWAMP LAKE Comment
  A346491  Prunus fasciculata H. L. Mason 1935-5-1 10007 Unknown Ridge south of Isabella Comment
  A357743  Pinus contorta H. L. Mason 1934-9-3 8148 Unknown Just north of the town of Point Arena, Mendocino County Comment
  A401330  Alnus incana subsp. tenuifolia H. L. Mason 1939-7-18 12172 Unknown north side of Luther Pass, one mile west of Grass Lake Meadow 2346 Comment
  A422714  Juglans hindsii H. L. Mason 1924-10-8 1107 Unknown north bank of San Fracisquito Creek; north end of Jasper Ridge, between Stanford Zoology Field Station and Sand Hill Caves Comment
  GH244864  Solanum umbelliferum H. L. Mason 1926-5-28 3269 Unknown 5 miles above Auburn Comment
  GH257618  Meconella californica H. L. Mason 1928-2-22 4162 Unknown San Bruno Mountains Comment
  GH257641  Meconella denticulata H. L. Mason 3754 Unknown San Antonio Canyon, San Gabriel Mountains Comment
  GH30187  Triteleia versicolor H. L. Mason & E. Lee 1935-6-15 9351 Unknown Whaler's Knoll. Point Lobos State Park Comment
  GH345643  Horkelia parryi H. L. Mason 1933-5-29 7253 Unknown two miles south of Ione 152 Comment
  GH345719  Ivesia muirii H. L. Mason 1923-8-2 700 Unknown Johnson's Peak, near headwaters of Unicorn Creek, West-facing gravely slope Comment
  GH345735  Ivesia shockleyi H. L. Mason 1936-7-28 11398 Unknown Dana plateau, vicinity of Mount Dana, Sierra Nevada 3657 Comment
  GH346035  Rosa gymnocarpa H. L. Mason 1924-11-23 1161 Unknown Cashion Creek, Las Trampas Ridge Comment
  GH346738  Prunus virginiana var. demissa H. L. Mason 1927-6-15 3777 Unknown San Gabriel Mountains 2590 Comment
  GH347911  Cneoridium dumosum H. L. Mason 1925-4-18 1497 Unknown San Diego, Hills back of Navy Fuel Dock Comment
  GH347954  Ptelea crenulata H. L. Mason 1928-3-31 Unknown Mt. Diablo Comment
  GH349972  Ceanothus palmeri H. L. Mason 1928-5-3 4488 Unknown near bridge of Cosumnes River at mouth of Clark Creek Comment
  GH349974  Ceanothus palmeri H. L. Mason 1928-5-3 4488 Unknown near bridge of Cosumnes River at mouth of Clark Creek Comment
  GH350365  Arctostaphylos glandulosa var. cushingiana H. L. Mason 1925-2-1 1220 Unknown Mount Tamalpais Comment
  GH350624  Arctostaphylos andersonii var. imbricata H. L. Mason 1928-2-22 4164 Unknown San Bruno Mountain Comment
  GH350713  Arctostaphylos myrtifolia H. L. Mason 1928-5-3 4468 Unknown One mile south of Ione Comment
  GH362001  Arctostaphylos pechoensis var. viridissima H. L. Mason 1938-5-7 11776 Unknown Burton Mesa Comment
  GH362991  Rhododendron columbianum H. L. Mason 1928-8-25 Unknown Mesa one mile east of mouth of Noyo River Comment
  GH363196  Vaccinium ovatum H. L. Mason 1934-3-31 8054 Unknown La Purrissima Ridge, east of Lompoc Comment
  GH364918  Hesperolinon congestum H. L. Mason 1928-4-28 4409 Unknown Tiburon Peninsula Comment
  GH366514  Lotus formosissimus H. L. Mason 1928-4-8 4281 Unknown Fort Ross Comment
  GH367220  Mimulus aurantiacus var. puniceus H. L. Mason 1926-4-30 3119 Unknown Pala grade, Temecula to Pala, Temecula Canyon Comment
  GH369734  Delphinium recurvatum H. L. Mason 1940-5-4 12255 Unknown Ortigalita Canyon, 2 miles north east of Ortigalita Peak 304 Comment
  GH378184  Rhamnus alnifolia H. L. Mason 1939-8-3 12200 Unknown Squaw Valley 7 miles northwest of Tahoe City 1889 Comment
  GH379858  Stanfordia californica H. L. Mason 1935-5-2 10001 Unknown One mile east of Lost Hills, northwest Kern County Comment
  GH380635  Ribes nevadense H. L. Mason 1926-5-1 3164 Unknown Sour-dough Spring, Palomar Mountain Comment
  GH386521  Brickellia californica H. L. Mason 1930-10-25 5770 Unknown Banks of San Antonio River Comment
  GH387415  Ericameria ericoides H. L. Mason 1928-10-3 4993 a Unknown Ten miles up Carmel River Comment
  GH400938  Salvia sonomensis H. L. Mason 1929-4-29 5252 Unknown between Kelseyville and Lower Lake Comment
  GH402093  Scutellaria siphocampyloides H. L. Mason 1940-5-5 12280 Unknown north slope of Twin Peaks, North Fork of Los Banos Creek, Inner South Coast Ranges 457 Comment
  GH403744  Navarretia linearifolia H. L. Mason 1950-7-15 14049 Unknown In wet bog: Summit of grade, Scott Mountain Comment
  GH420707  Sidalcea hartwegii H. L. Mason 1932-4-24 Unknown Near base of Pilot Hill about 11 mi. E. of Folsom Comment
  GH422484  Tropidocarpum capparideum H. L. Mason 1932-3-19 6818 Unknown Road from Mountain House to Midway, west of Tracy Comment
  GH424010  Carex capillaris H. L. Mason 1938-7-13 11946 Unknown base of El Capitan, Yosemite Valley 1226 Comment
  GH424013  Bulbostylis capillaris H. L. Mason 1938-7-11 11934 Unknown Miguel Meadow, west of Hetch Hetchy 1584 Comment
  GH424071  Carex congdonii H. L. Mason 1938-7-28 12046 Unknown Macomb Ridge east of Tilden Lake 3048 Comment
  GH424084  Carex limosa H. L. Mason 1938-7-10 11906 Unknown South island in Swamp Lake, west of Hetch Hetchy 1584 Comment
  GH424130  Carex buxbaumii H. L. Mason 1938-7-10 11915 Unknown South island in Swamp Lake, west of Hetch Hetchy 1584 Comment
  GH425078  Ceanothus parvifolius H. L. Mason 1926-5-31 3343 Unknown 1 mile west of Calaveras Grove Comment
  GH425973  Frangula californica subsp. occidentalis H. L. Mason 1932-7-21 7109 Unknown East slope of Southfork Mountains, on road from Arcata to Weaverville Comment
  GH427054  Eriophyllum lanatum var. arachnoideum H. L. Mason 1934-4-28 8096 Unknown Jensen Ranch, at head of Dohrman Creek, four miles west of Healdsburg Comment
  GH427109  Eriophyllum lanatum H. L. Mason 1925-12-31 2567 Unknown Bartlet Mountain Road Comment
  GH48998  Limnanthes douglasii var. sulphurea H. L. Mason & A. M. Carter 1938-5-18 1413 Unknown Point Reyes Peninsula, 12 miles from Inverness Comment
  GH78495  Eriastrum brandegeeae H. L. Mason 1945-6-28 12604 Unknown Obsidian Ridge, southeast of Borax Lake Comment
  UC1076046  Claytonia lanceolata Herbert L. Mason 1947-5-17 14775 Unknown summit of Scott Mountain Scott Mountain (Trinity-Siskiyou county line) Comment
  A422797  Lonicera conjugialis H. L. Mason 1936-7-6 11160 Unknown Research Reserve, Hetch Hetchy Trail west of Dark Hole 2438 Comment
  GH346970  Osmaronia cerasiformis H. L. Mason 1923-6-22 533 Unknown Summit Cuesta Grade Comment
  GH347791  Polygala cornuta var. fishiae H. L. Mason 1923-6-20 524 Unknown Camp Comfort, San Antonio Canyon, Ojai Comment
  GH360099  Koeleria cristata H. L. Mason 1932-4-28 7051 Unknown Laundry farm, Oakland Hills Comment
  GH363055  Rhododendron macrophyllum H. L. Mason 1928-7-11 4896 Unknown Fort Ross to Willits Comment
  GH376220  Frankenia salina H. L. Mason 1929-10-13 5503 Unknown 2-1/3 miles north of Cambria Comment
  GH378528  Cleomella obtusifolia H. L. Mason 1935-3-29 8234 Unknown West side of Searle Lake, Mojave Desert Comment
  GH385242  Leptosiphon pygmaeus H. L. Mason 1935-5-4 8300 Unknown southwest facing slopes of Mount Hamilton, Mount Hamilton Range Comment
  GH385884  Galium bolanderi H. L. Mason 1936-7-15 11253 Unknown 1/2 mile west of Mather 1371 Comment
  GH400045  Gentianopsis holopetala H. L. Mason 1923-8-21 750 Unknown Yosemite National Park, North base of Puppy Dome. Dana Fork near Gaylor Creek Comment
  GH400807  Pogogyne serpylloides H. L. Mason 1926-4-10 2803 Unknown Arroyo Mocho, 6 miles south of Livermore, Mount Hamilton Range Comment
  GH422415  Streptanthus vimineus H. L. Mason 1940-5-22 12309 Unknown Serpentine ridge south of Lakeport Comment
  GH425422  Ceanothus tomentosus H. L. Mason 1932-4-24 6986 Unknown 3 miles south of Ione Comment
  UC1076040  Lewisia rediviva Herbert L. Mason 1947-5-17 14776 Unknown summit of Scott Mountain grade Trinity-Siskiyou County Line Comment
  UC1076044  Astragalus purshii var. tinctus Herbert L. Mason 1947-5-17 14779 Unknown summit Scott Mountain Grade (Trinity-Siskiyou counties) Comment
  UC565595  Keckiella ternata var. septentrionalis Herbert L. Mason 1923-6-18 511 Ventura Red Reef Canyon; Topatopa Mts. Comment
  UC635449  Romneya trichocalyx H. L. Mason 1923-6-18 514 Ventura Topatopa Mountains, Red Reef Canyon Red Reef Canyon; Topatopa Mountains, Red Reef Canyon Comment
  UC672364  Turricula parryi Herbert L. Mason 1923-6-19 517 Ventura Horn Canyon Comment
  UC912398  Ceanothus palmeri Herbert L. Mason 1923-6-18 506 Ventura Timber Canyon Topa Topu Mts. (Topa Topu Mts.) Comment
  UC570680  Solanum douglasii Herbert L. Mason 1923-6-19 520 Ventura near Ojai Comment
  UC570806  Polygala cornuta var. fishiae H. L. Mason 1923-6-18 476 Ventura Sisar Canyon Topa Topa Mountain Comment
  UC634611  Ceanothus papillosus Herbert L. Mason 1923-6-19 519 Ventura Matileja Mt. Matileja Mt. (Ocean view trail) Comment
  CAS-BOT-BC98367  Symphyotrichum subulatum var. parviflorum Herbert L. Mason 1955-8-12 14646 Yolo Between Winters and Madison Comment
  UC566861  Sanicula bipinnatifida H. L. Mason 1927-5-11 3733 Yuba vicinity of Dobbins 457 Comment
  UC634626  Ceanothus lemmonii H. L. Mason 1927-5-11 3723 Yuba near Dobbins 457 Comment



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