Search Results — 2000 specimen records retrieved (1566 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 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-BC148114  Rosa gymnocarpa H. L. Mason 1921-5-14 s.n. Alameda Hayward Comment
  CAS-BOT-BC150304  Diplacus aurantiacus H. L. Mason 1921-5-14 s.n. Alameda [Haywards] Hayward Comment
  CAS-BOT-BC158751  Rubus ursinus H. L. Mason 1917-3-10 46 Alameda Temescal Comment
  CAS-BOT-BC241464  Lonicera involucrata var. ledebourii H. L. Mason 1917-2-9 24 Alameda Berkeley Hills Comment
  CAS-BOT-BC342113  Logfia filaginoides H. L. Mason 1932-5-4 7055 Alameda Laundry Farm, Oakland Hills Comment
  CAS-BOT-BC382886  Wyethia angustifolia H. L. Mason 1921-5-14 s.n. Alameda Haywards [Hayward] Comment
  CAS-BOT-BC40741  Erysimum capitatum H. L. Mason 1926-4-11 2843 Alameda Rancho Repose, Cedar Mountain, Arroyo Mocho, Mount Hamilton Range. Comment
  CAS-BOT-BC67355  Tropidocarpum capparideum H. L. Mason 1932-3-19 6818 Alameda Road from Mountain House to Midway, west of Tracy. Comment
  CAS-BOT-BC70583  Cystopteris fragilis H. L. Mason 1921-5-14 s.n. Alameda Hayward Comment
  CAS-BOT-BC85504  Cupressus sargentii Herbert Louis Mason 1926-4-16 s.n. Alameda Type locality: Cedar Mountain. Near the summit growing in volcanic rock Comment
  CAS-BOT-BC85514  Cupressus sargentii Herbert Louis Mason 1926-4-16 s.n. Alameda Type locality: Cedar Mountain. Near the summit growing in volcanic rock Comment
  CAS-BOT-BC92914  Ribes californicum var. californicum H. L. Mason 1921-5-14 s.n. Alameda Haywards. Comment
  CAS-BOT-BC9919  Delphinium nudicaule Herbert L. Mason 1931-3-13 5814 Alameda Lake Chabot Comment
  NY16799  Cupressus sargentii H. L. Mason 1926-4-16 s.n. Alameda 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
  UC1076189  Madia gracilis Herbert L. Mason 1926-5-26 3236 Alameda Niles Canyon Comment
  UC1076242  Lupinus microcarpus var. microcarpus H. L. Mason 1928-5-6 4552 Alameda Cedar Mt Comment
  UC1076411  Symphoricarpos mollis Herbert L. Mason 1924-5-4 1004 Alameda Berkeley Hills Comment
  UC1076491  Polycarpon tetraphyllum Herbert L. Mason 1927-6-20 3796 Alameda University of California, Berkeley, campus , campus of University of California (Berkeley) Comment
  UC1083163  Guillenia lasiophylla H. L. Mason 1926-4-10 2806 Alameda Cedar Mountain via Arroyo Mocho Canyon Mount Hamilton Range Comment
  UC1191158  Dodecatheon hendersonii Herbert L. Mason 1926-4-11 2841 Alameda Cedar Mountain Comment
  UC1199515  Quercus durata Herbert L. Mason 1929-10-20 5509 Alameda Cedar Mountain Comment
  UC1713663  Scutellaria tuberosa Herbert L. Mason 1925-3-2 1274 Alameda Mills College Comment
  UC179019  Cupressus sargentii Herbert L. Mason 1926-10-31 3644 Alameda Cedar Mountain Comment
  UC2035816  Monardella villosa subsp. villosa H. L. Mason 1926-5-26 3249 Alameda Niles Canyon Comment
  UC2055605  Acanthomintha lanceolata H. L. Mason 1928-5-6 4556 Alameda Cedar Mountain; Mount Hamilton Range, Cedar Mountain Comment
  UC398720  Cupressus sargentii H. L. Mason 1926-4-16 Alameda near summit; Cedar Mountain 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
  UC555479  Trifolium albopurpureum var. dichotomum H. L. Mason 1928-5-6 4569 Alameda Cedar Mountain Comment
  UC555484  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-4-15 4353 Alameda e end Moraga Ridge Comment
  UC555572  Trifolium willdenovii H. L. Mason 1928-5-6 4568 Alameda Cedar Mtn Comment
  UC555681  Rubus laciniatus H. L. Mason 1925-12-12 Alameda San Leandro Canyon Oakland Hills, San Leandro Canyon Comment
  UC565562  Lactuca saligna Herbert L. Mason 1927-10-4 4113 Alameda Berkeley, UC Berkeley campus Comment
  UC566627  Senecio aronicoides Herbert L. Mason 1924-4-20 900 Alameda Berkeley Hills Berkeley, Berkeley Hills Comment
  UC566797  Lomatium utriculatum Herbert L. Mason 1926-4-10 2820 Alameda Cedar Mountain via Arroyo Mocho Canyon Mount Hamilton Range Comment
  UC566830  Torilis nodosa Herbert L. Mason 1926-5-24 3221 Alameda University of California Berkeley, campus Comment
  UC566908  Forestiera pubescens H. L. Mason 1927-3-20 3656 Alameda 16 mi s Livermore; Arroyo Mocho Comment
  UC570747  Acanthomintha lanceolata H. L. Mason 1928-5-6 4556 Alameda Cedar Mountain; Mount Hamilton Range, Cedar Mountain Comment
  UC570818  Ribes malvaceum Herbert L. Mason 1929-3-15 5065 Alameda Arroyo Mocho Mount Hamilton Range Comment
  UC570837  Ribes californicum Herbert L. Mason 1929-3-3 5066 Alameda Arroyo Mocho Mount Hamilton Range Comment
  UC571167  Platanus racemosa Herbert L. Mason 1925-3-7 1276 Alameda along creek 1/2 mi w Sunol; Niles Creek Comment
  UC573153  Plagiobothrys nothofulvus Herbert L. Mason 1926-4-10 2814 Alameda Arroyo Mocho near Cedar Mountain; Mount Hamilton Range Comment
  UC592157  Streptanthus glandulosus subsp. glandulosus Herbert L. Mason 1926-5-26 3248 Alameda bluffs n Sunol; Niles Canyon Comment
  UC634983  Ranunculus hebecarpus H. L. Mason 1926-4-11 2847 Alameda Cedar Mountain and Rancho Repose Mount Hamilton Range Comment
  UC635127  Uropappus lindleyi H. L. Mason 1926-4-11 2824 Alameda Rancho Repose Mount Hamilton Range, Cedar Mountain, Rancho Repose (Cedar Mountain, Mount Hamilton Range) Comment
  UC635318  Isopyrum stipitatum H. L. Mason 1929-3-15 5063 Alameda 18 mi s Livermore (Arroyo Mocho to Mount Hamilton); Arroyo Mocho to Mount Hamilton Comment
  UC635534  Isopyrum stipitatum H. L. Mason 1927-3-20 3657 Alameda e Cedar Mountain (Arroyo Mocho, Mount Hamilton Range); Mount Hamilton Range, e of Cedar Mountain, Arroyo Mocho Comment
  UC672271  Logfia gallica H. L. Mason 1932-5-4 7054 Alameda Laundry Farm Oakland Hills, Laundry Farm Comment
  UC672298  Corethrogyne filaginifolia H. L. Mason 1926-5-26 3252 Alameda Niles Canyon Comment
  UC672307  Baccharis pilularis Herbert L. Mason 1926-11-1 3647 Alameda Dimond Canyon, Oakland Hills Comment
  UC672337  Phacelia breweri Herbert L. Mason 1928-5-6 4550 Alameda Cedar Mountain Comment
  UC672415  Phacelia distans Herbert L. Mason 1928-5-6 4564 Alameda Cedar Mountain Comment
  UC672530  Mimulus douglasii H. L. Mason 1927-3-20 3660 Alameda 17 mi s Livermore; Arroyo Mocho 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
  UC673368  Zigadenus venenosus var. venenosus H. L. Mason 1928-5-6 4554 Alameda Cedar Mountain Mount Hamilton Range Comment
  UC673431  Triphysaria eriantha subsp. eriantha H. L. Mason 1925-3-23 1309 Alameda Sunol Comment
  UC699609  Oenothera rosea Herbert L. Mason 1943-11-2 Alameda just w Life Sciences Building; Berkeley, University of California Campus, Strawberry Creek Comment
  UC699631  Urospermum picroides H. L. Mason 1943-6-5 Alameda n Hearst Mining Building; University of California, Berkeley Comment
  UC908811  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1928-5-6 4561 Alameda Cedar Mountain Mount Hamilton Range, Cedar Mountain Comment
  UC908957  Linanthus androsaceus Herbert L. Mason 1926-4-10 2817 Alameda Cedar Mountain Mount Hamilton Range, Arroyo Mocho Comment
  UC909129  Phlox gracilis Herbert L. Mason 1925-3-23 1307 Alameda Sunol Comment
  UC909139  Phlox gracilis Herbert L. Mason 1927-3-20 3661 Alameda 17 mi s Livermore; Arroyo Mocho 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
  UC912464  Plectritis macrocera Herbert L. Mason 1926-4-11 2849 Alameda Cedar Mountain, Rancho Repose Rancho Repose; Cedar Mountain, Rancho Repose Comment
  UC912587  Vulpia microstachys var. ciliata Herbert L. Mason 1932-5-4 7066 Alameda Laundry Farm; Oakland Hills Comment
  UC912615  Calycadenia truncata Herbert L. Mason 1929-10-20 5512 Alameda Mount Hamilton Range, Cedar Mountain Comment
  UC912631  Nassella lepida Herbert L. Mason 1932-4-28 7052 Alameda Laundry farm Oakland Hills Comment
  UC912635  Cynodon dactylon Herbert L. Mason 1926-5-24 3229 Alameda Berkeley, Univ of Calif Campus Comment
  UC912639  Lolium temulentum Herbert L. Mason 1926-5-24 3227 Alameda Berkeley, University of California campus Comment
  UC962126  Amaranthus deflexus Herbert L. Mason 1927-6-20 3792 Alameda Berkeley Comment
  UC962136  Deinandra corymbosa H. L. Mason 1932-5-4 7060 Alameda Laundry Farm Oakland Hills Comment
  UCD98420  Polycarpon tetraphyllum Herbert L. Mason 1927-6-20 3796 Alameda UC Berkeley Campus. Comment
  CAS-BOT-BC299691  Crocidium H. L. Mason 1932-3-6 6809 Alameda Arroyo Mocho, twenty miles south of Livermore, Mount Hamilton Range Comment
  CAS-BOT-BC8775  Delphinium gracilentum Herbert L. Mason 1926-4-11 2827 Alameda Cedar Mountain and Rancho Repose, Mount Hamilton Range Comment
  JEPS35213  Monolopia major H. L. Mason 1932-3-20 Alameda plain e Mountain House (about 13 mi ne of Livermore) Comment
  UC1039584  Dodecatheon hendersonii Herbert L. Mason 1925-3-23 1303 Alameda hills near Sunol; hills near Sunol Comment
  UC1093984  Azolla filiculoides Herbert L. Mason 1937-6-17 11544 Alameda Thornhill pool Moraga Rd. Oakland Comment
  UC570733  Pogogyne serpylloides Herbert L. Mason 1926-4-10 2803 Alameda Arryo Mocho 6 miles south of Livermore Comment
  UC672282  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1934-4-8 Alameda 10 mi from Marsh Creek. Livermore; Livermore Road Comment
  UC963770  Linanthus pygmaeus subsp. continentalis Herbert L. Mason 1934-4-8 Alameda 11 mi s Marsh Creek Road (along road from Marsh Creek to Livermore, Chaparral Ridge) Comment
  UCD138251  Potamogeton crispus Herbert L. Mason 1946-6-28 12877 Alameda San Leandro Creek. Comment
  JEPS16607  Mimulus moniliformis Herbert L. Mason 1940-7-25 12336 Alpine hills n Kit Carson Pass 2682 Comment
  SBBG27342  Senecio fremontii H. L. Mason 1940-7-30 12352 Alpine hills N of Carson Pass 2682 Comment
  UC912503  Erigeron breweri var. breweri Herbert L. Mason 1932-9-9 7182 Alpine near Carson Pass; Carson Meadows Comment
  CAS-BOT-BC144071  Horkelia parryi H. L. Mason 1933-5-29 7253 Amador Two miles south of Ione Comment
  CAS-BOT-BC163538  Clarkia arcuata H. L. Mason 1932-4-25 6997 Amador Vorhees School, near Dry Creek Comment
  CAS-BOT-BC310132  Hesperevax acaulis H. L. Mason 1932-4-24 6981 Amador Three miles south of Ione Comment
  JEPS4732  Mimulus angustatus Herbert L. Mason 1953-5-17 Amador 2 mi w Aukum Comment
  JEPS5119  Valerianella locusta H. L. Mason 1932-4-25 Amador Cosumnes River bridge (Amador Co. side), Ione to Latrobe Cosumnes River; Cosumnes River bridge 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
  UC1988945  Pogogyne zizyphoroides H. L. Mason 1928-5-3 4476 Amador Hills near Carbondale Comment
  UC555360  Trifolium depauperatum var. depauperatum H. L. Mason 1928-5-3 4477 Amador near Carbondale (hills) Comment
  UC555628  Horkelia parryi H. L. Mason 1932-4-24 6978 Amador 3 mi s Ione Comment
  UC565530  Sanicula bipinnata H. L. Mason 1928-5-3 4460 Amador w of Ione (Jackson Creek Bridge); Jackson Creek Bridge Comment
  UC566740  Lasthenia glaberrima H. L. Mason 1928-5-3 4474 Amador hills near Carbondale Comment
  UC570729  Pogogyne zizyphoroides H. L. Mason 1928-5-3 4476 Amador Hills near Carbondale Comment
  UC570991  Rhamnus ilicifolia H. L. Mason 1928-5-3 4465 Amador 1 mi s Ione Comment
  UC634810  Ceanothus tomentosus H. L. Mason 1928-5-3 4467 Amador hills one mi s Ione; s of Ione Comment
  UC634974  Ranunculus flammula H. L. Mason 1933-9-2 7282 Amador Silver Lake Sierra Nevada Mountains Comment
  UC672172  Gamochaeta stachydifolia H. L. Mason 1932-4-25 6991 Amador hill above Ione Comment
  UC672275  Hesperevax acaulis var. acaulis H. L. Mason 1932-4-24 6981 Amador 3 mi s Ione Comment
  UC908101  Navarretia viscidula H. L. Mason 1926-5-30 3340 Amador hills s of Ione; Sierra Nevada Comment
  UC912249  Psilocarphus tenellus Herbert L. Mason 1933-9-2 7284 Amador Silver Lake Sierra Nevada Comment
  UC912379  Ceanothus tomentosus Herbert L. Mason 1932-4-24 6986 Amador 3 mi s Ione; s of Ione Comment
  UC912478  Polygonum shastense Herbert L. Mason 1933-9-2 7259 Amador Silver Lake Sierra Nevada Comment
  UC912548  Antennaria rosea Herbert L. Mason 1933-9-2 7266 Amador Silver Lake Sierra Nevada Mountains, Silver Lake Comment
  UC912613  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1933-9-2 Amador Silver Lake Sierra Nevada Comment
  UC912626  Eriogonum wrightii var. subscaposum Herbert L. Mason 1933-9-2 7256 Amador Silver Lake Sierra Nevada, Silver Lake Comment
  UC912650  Nassella pulchra H. L. Mason 1928-5-3 4470 Amador hills near Carbondale Comment
  UC936204  Agrostis exarata Herbert L. Mason 1932-4-25 6998 Amador road from Ione to Michigan Bar (Voorhees School) Comment
  UC963774  Navarretia divaricata H. L. Mason 1933-9-2 7281 Amador Silver Lake Sierra Nevada Comment
  UC963789  Linanthus ciliatus Herbert L. Mason 1928-5-3 4484 Amador s of Cosumnes River Comment
  UC971816  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-14 1132 Amador along state hwy 88 between Ione and Clements 106 Comment
  UC971850  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1949-5-11 1183 Amador 13 mi w Jackson (near an irrigation ditch along State Hwy 16) Comment
  SEINET190343  Filago gallica H. L. Mason 1932-4-25 6992 Amador Hill abobe Ione 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-BC114742  Cyperus difformis Herbert L. Mason 1945-9-19 12737 Butte Gray Lodge Game Refuge, NW of Pennington Comment
  CAS-BOT-BC267086  Sagittaria sanfordii Herbert L. Mason 1946-8-8 13001 Butte Butte Sink. West Gridley road, 1 mile W of Gridley - Pennington highway Comment
  POM312315  Elatine ambigua H. L. Mason, Verne Grant, C. T. Mason 1946-8-15 13052 Butte #833 Irrigation Ditch, near caretaker's house, Greylodge Game Refuge, Butte Sink. Comment
  RSA312628  Cuscuta californica H. L. Mason, Verne Grant 1946-9-27 13132 Butte Graylodge Game Refuge, Butte Sink Comment
  SACT001406  Leptochloa fascicularis Herbert Mason 1945-9-19 Butte Stem rooting at nodes from plants in flooded area, northwest of pennington. Comment
  UC1099803  Sparganium eurycarpum var. eurycarpum Herbert L. Mason and Verne Grant 1946-8-14 13016 Butte Butte Sink; Sacramento Outing Club Comment
  UC1099839  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-8-14 13045 Butte Butte Sink Comment
  UC1100014  Najas guadalupensis Herbert L. Mason, Verne Grant 1946-8-15 13053 Butte Butte Sink, Greylodge Game Refuge, Irrigation Ditch #833, near caretaker's house Butte Sink; , Greylodge Game Refuge, Irrigation Ditch #833 Comment
  UC1100307  Leptochloa fascicularis Herbert L. Mason 1945-9-19 12730 Butte nw Pennington; Gray Lodge Game Refuge Comment
  UC1100459  Setaria pumila Herbert L. Mason and Verne Grant 1946-9-27 13131 Butte Pennington-Gridley Rd. Butte Sink Comment
  UC1100532  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-15 13050 Butte #833 Irrigation Ditch near caretaker's house Greylodge Game Refuge; Butte Sink, Greylodge 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
  UC1101126  Polygonum persicaria Herbert L. Mason and Verne Grant 1946-9-4 13111 Butte West Gridley Rd 833 Canal Comment
  UC1101175  Polygonum hydropiperoides Herbert L. Mason and Verne Grant 1946-8-14 13027 Butte Sacramento Outing Club Butte Sink (canal near big pond) Comment
  UC1101613  Azolla microphylla Herbert L. Mason and Verne Grant 1946-8-14 13018 Butte canal near big pond on Sacramento Outing Club Butte Sink 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
  UC1191591  Ammannia robusta Herbert L. Mason and Verne Grant 1945-7-10 12633 Butte n. of Marysville Butte (along Butte Creek, Grey Lodge Game Refuge - southern); Grey Lodge Game Refuge, Butte Creek Comment
  UC672620  Marsilea vestita subsp. vestita Herbert L. Mason 1927-5-9 3706 Butte 15 mi w Oroville; Sacramento Valley Comment
  UC673463  Castilleja attenuata H. L. Mason 1927-5-10 3715 Butte ne of Oroville (Cherokee Mine) Comment
  UC935720  Sagittaria sanfordii Herbert L. Mason and Verne Grant 1946-9-4 13112 Butte road between Gridley and Princeton Comment
  UC963768  Navarretia tagetina H. L. Mason 1927-5-9 3707 Butte 12 mi w Oroville Comment
  UCD102896  Ammannia robusta H. L. Mason; Verne Grant 1945-7-10 12633 Butte Butte Sink. Butt Creek, N of Marysville Buttes, Grey Lodge Game Refuge, southern. Comment
  CAS-BOT-BC419180  Persicaria maculosa Herbert L. Mason; Verne Grant 1946-9-4 13111 Butte 833 Canal, West Gridley Road Comment
  POM313007  Potamogeton nodosus H. L. Mason 1947-7-10 12640 Butte Sanford Slough, Butte Sink, southwest corner of Butte county. Comment
  POM313079  Cyperus niger var. capitatus H. L. Mason, Verne Grant 1946-9-27 13141 Butte 3 miles west of Biggs. Comment
  POM313089  Schoenoplectus acutus var. occidentalis H. L. Mason, Verne Grant 1946-8-7 12993 Butte Grey Lodge Game Refuge; Gridley Road north of Butte Sink Comment
  SEINET11763780  Najas graminea H. L. Mason, Grant, V. 1946-1 13047 Butte near caretakers house, Greylodge Game Refuge Comment
  UC1100544  Cyperus difformis Herbert L. Mason and Verne Grant 1945-7-10 12636 Butte s.w. corner Sanford slough Comment
  UCD136695  Symphyotrichum subulatum var. parviflorum Herbert L. Mason; Verne Grant 1946-9-4 13102 Butte Colusa Gun Club. Butte Sink. Comment
  UCD137763  Ceratophyllum demersum Herbert L. Mason; Verne Grant 1946-8-8 12994 Butte Butte Sink. Sanford Slough on Tule Gun Club. Comment
  UCD140008  Bolboschoenus glaucus Herbert L. Mason; Verne Grant 1946-8-7 12991 Butte Gridley Road north of Butte Sink. Comment
  POM224212  Cornus sessilis H. L. Mason 1935-3-14 10984 Calaveras South fork of the Mokelumne River, about three miles northeast of Glencoe. Comment
  UC1039511  Kelloggia galioides H. L. Mason 1926-5-31 3356 Calaveras 1.2 mi sw Calaveras Big Trees (on old road) Comment
  UC1056991  Tuberaria guttata Herbert L. Mason 1936-4-11 11078 Calaveras Comanche Comment
  UC1081516  Saxifraga californica Herbert L. Mason 1936-3-14 10994 Calaveras s of Sheep Ranch (San Antonio Creek); San Antonio Creek Comment
  UC1111018  Tuberaria guttata Herbert L. Mason 1936-4-12 11077 Calaveras Mokelumne River near Lancha Plana; Mokelumne River Comment
  UC1111596  Isopyrum occidentale Herbert L. Mason 1936-3-14 10989 Calaveras four mi e Mokelumne Hill; e of Mokelumne Hill Comment
  UC570731  Pogogyne serpylloides H. L. Mason Apr 1930 5554 Calaveras Hills west of San Andreas Comment
  UC632837  Psilocarphus tenellus H. L. Mason 1936-4-12 11080 Calaveras Comanche, Sierra Nevada foothills Sierra Nevada Comment
  UC635271  Pleuricospora fimbriolata H. L. Mason 1926-5-31 3349 Calaveras Calaveras Big Trees. Comment
  UC673559  Corallorhiza maculata H. L. Mason 1926-5-31 3348 Calaveras Calaveras Big Trees Comment
  UC908437  Allophyllum integrifolium Herbert L. Mason July, 1930 5703 Calaveras Blue Creek near Hermit Springs; Sierra Nevada, Blue Creek Comment
  UC908468  Phlox gracilis Herbert L. Mason 1926-6-1 3363 Calaveras Calaveras Big Tree Grove Comment
  UC912491  Delphinium variegatum Herbert L. Mason 1930-4-1 5553 Calaveras hills w San Andreas Comment
  UC912552  Cirsium occidentale var. californicum Herbert L. Mason 1932-4-24 6975 Calaveras Mokulumne River Bridge Mokulumne River, Comanche Comment
  UC912690  Cystopteris fragilis Herbert L. Mason 1936-3-14 10996 Calaveras S of Sheep Ranch; San Antonio Creek Comment
  CAS-BOT-BC400740  Asarum lemmonii H. L. Mason 1930-7-1 5705 Calaveras Near Hermit Springs, Blue Creek, a tributary of the North Fork of the Mokelumne River, Sierra Nevada Mountains 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
  UC570750  Callitriche longipedunculata H. L. Mason 1929-4-7 5193 Calaveras 3 miles above Valley Spring Comment
  UC632790  Mimulus kelloggii H. L. Mason 1936-4-10 11047 Calaveras road between Murphy's and Angels Camp; Sierra Nevada foothills 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-BC114385  Cyperus erythrorhizos Herbert L. Mason 1945-9-19 12724 Colusa Below causway over Butte Sink spillway, E bank of Sacramento River, 1 mi N of Colusa. Comment
  CAS-BOT-BC235306  Sorghum halepense Herbert L. Mason 1945-9-19 12723 Colusa Below causway over Butte Sink spillway, east bank of Sacramento River, 1 mile north of Colusa Comment
  POM313202  Panicum dichotomiflorum H. L. Mason 1945-9-19 12720 Colusa Below caus[e]way over Butte Sink spillway, East bank of Sacramento River, 1 mile north of Colusa. Comment
  POM313214  Leersia oryzoides H. L. Mason 1945-9-19 12715 Colusa Below causway over Butte Sink spillway, east bank of Sacramento River, 1 mile above Colusa. Comment
  UC1099935  Cyperus erythrorhizos Herbert L. Mason and Verne Grant 1946-9-5 13115 Colusa 1.6 mi. w. Williams (rd. to Lake Co.) 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
  UC1100289  Digitaria ischaemum Herbert L. Mason 1945-9-19 12722 a Colusa 1 mi n Colusa (below causeway over Butte Sink spillway, e bank Sacramento River); e bank Sacramento River, Butte Sink spillway Comment
  UC1100305  Leptochloa fascicularis Herbert L. Mason and Verne Grant 1946-8-6 12962 Colusa pond on Colusa-Marysville Hwy 4 mi s Colusa (w side of Sacramento River) Comment
  UC1100334  Crypsis schoenoides Herbert L. Mason 1945-7-11 12642 Colusa near Butte Creek (3 mi above Colusa); Butte Lodge Outing Club Comment
  UC1100515  Cyperus erythrorhizos Herbert L. Mason and Verne Grant 1946-8-13 13012 Colusa 2 mi. w. Colusa (on Williams hwy. by gridge); Butte Sink Comment
  UC1100924  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-6 12964 Colusa four mi s Colusa (w side Sacramento River, pond on Colusa-Marysville Highway); w side Sacramento River, s of Colusa Comment
  UC1101349  Myosurus minimus subsp. apus Herbert L. Mason 1953-4-5 14510 a Colusa 3 mi e of Maxwell 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
  UC1191584  Lythrum tribracteatum Herbert L. Mason 1945-7-11 12645 Colusa 3 mi above Colusa (near Butte Creek, Butte Lodge Outing Club); Butte Lodge Outing Club Comment
  UC1212442  Hesperolinon californicum Herbert L. Mason 1946-5-31 12815 Colusa 1 mi e Lake County line (Bartlett Springs to Williams road, western Colusa County); Inner North Coast Ranges Comment
  UC1738076  Myosurus sessilis H. L. Mason 1957-4-13 14510 B-7 Colusa 3 mi E of Maxwell (on Maxwell Rd.) Comment
  UCD59814  Crypsis schoenoides H. L. Mason 1945-7-11 12642 Colusa Near Butte Creek; Butte Lodge Outing Club, 3 miles above Colusa. Comment
  CAS-BOT-BC445317  Alisma lanceolatum Herbert L. Mason; Verne Grant 1946-9-5 13119 Colusa Road to Lake County, 1.6 miles west of Williams Comment
  POM310950  Leptosiphon bolanderi H. L. Mason 1941-4-5 12404 Colusa Three miles south of Stonyford 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
  RSA114112  Sedella pentandra H. L. Mason 1953-5-4 s.n. Colusa Little Stony Creek Road 0.25 miles above junction of Little Stony Creek and Trout Creek, Inner North Coast Ranges. 610 Comment
  SACT000805  Crypsis aculeata Herbert Mason 1945-7-11 Colusa Alkali Plains three miles above Colusa Comment
  SACT000807  Crypsis niliacea Herbert Mason 1945-7-11 Colusa Alkali Plains 3 miles above Colusa Comment
  UCD138139  Lemna minuta Herbert L. Mason; Verne Grant 1946-8-6 12966 Colusa on Colusa-Marysville Highway, four miles south of Colusa, west side of Sacramento River. Comment
  UCD96289  Myosurus sessilis H. L. Mason 1953-4-5 14508 Colusa Three miles east of Maxwell. 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-BC41526  Erysimum capitatum H. L. Mason 1933-4-9 7189 Contra Costa East of Antioch along the San Joaquin River. 12 Comment
  CAS-BOT-BC83291  Myosurus minimus Herbert L. Mason 1952-4-26 14268 Contra Costa 3.5 miles south of Byron. Comment
  CAS-BOT-BC83293  Myosurus minimus Herbert L. Mason 1952-4-26 14269 Contra Costa 3.5 miles south of Byron. 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
  SBBG92005  Erysimum capitatum var. capitatum H. L. Mason 1933-4-9 7189 Contra Costa E of Antioch along the San Joaquin River 12 Comment
  UC1039519  Galium aparine Herbert L. Mason 1932-3-20 6840 Contra Costa Antioch sand hills Comment
  UC1039536  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1929-3-15 5044 Contra Costa Nortonville Comment
  UC1039781  Castilleja affinis subsp. affinis H. L. Mason 1928-4-29 4438 Contra Costa Mount Diablo Comment
  UC1051490  Linanthus liniflorus Herbert L. Mason 1952-4-14 14265 Contra Costa 3.5 mi s Byron Comment
  UC1055936  Pilularia americana Herbert L. Mason 1952-4-14 14261 Contra Costa 3.5 mi s Byron Comment
  UC1076270  Centromadia fitchii Herbert L. Mason 1929-9-21 5433 Contra Costa 3 mi above Clayton (Marsh Creek Road) Comment
  UC1076380  Juniperus californica Herbert L. Mason 1923-11-12 850 Contra Costa middle slopes Mt. Diablo Comment
  UC1077124  Pilularia americana Herbert L. Mason 1932-3-20 6851 Contra Costa Deer Valley Comment
  UC1101329  Myosurus sessilis Herbert L. Mason 1952-4-26 14272 Contra Costa 3.5 mi s of Byron Comment
  UC1101333  Myosurus sessilis Herbert L. Mason 1952-4-14 14264 Contra Costa 3.5 mi s of Byron Comment
  UC1101358  Myosurus Herbert L. Mason 1952-3-13 14200 A Contra Costa 3.3 mi s Byron Comment
  UC1109005  Zannichellia palustris H. L. Mason October 1929 Contra Costa Nortonville Comment
  UC1111009  Androsace elongata subsp. acuta Herbert L. Mason 1928-3-4 4166 Contra Costa Shell Ridge 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
  UC1178021  Samolus parviflorus Herbert L. Mason 1955-7-14 14634 Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC1178029  Centunculus minimus Herbert L. Mason 1955-7-14 14632 a Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC1191771  Solanum elaeagnifolium Herbert L. Mason, Verne Grant 1946-9-3 13097 Contra Costa 2 mi w of Pittsburg Comment
  UC1199816  Chenopodium californicum Herbert L. Mason 1929-3-31 5158 Contra Costa Antioch Sacramento River Comment
  UC1738086  Myosurus minimus H. L. Mason 1957-3-15 14268 B-2 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  UC555482  Trifolium albopurpureum var. albopurpureum H. L. Mason 1928-4-29 4437 Contra Costa Sycamore Canyon Mt. Diablo, south slope Comment
  UC555497  Rosa gymnocarpa Herbert L. Mason 1924-11-23 1172 Contra Costa Cashion Creek Las Trampas Ridge Comment
  UC555617  Trifolium albopurpureum var. albopurpureum H. L. Mason 1929-5-7 5261 Contra Costa Moraga Ridge 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
  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
  UC566856  Sanicula crassicaulis H. L. Mason 1928-4-13 4305 Contra Costa Richmond Waterfront Comment
  UC566895  Tauschia hartwegii H. L. Mason 1928-4-26 4387 Contra Costa Berkeley-Oakland Hills Comment
  UC570761  Callitriche marginata H. L. Mason 1932-3-16 6810 Contra Costa At east edge Walnut Creek, along S.P. Railroad track Comment
  UC570769  Callitriche marginata H. L. Mason 1932-3-20 6852 Contra Costa Deer Valley; Briones Road Comment
  UC570838  Ribes californicum Herbert L. Mason 1926-3-7 2709 Contra Costa Summit Mt. Diablo Comment
  UC570964  Ribes sanguineum var. glutinosum Herbert L. Mason 1925-9-12 2224 Contra Costa head San Leandro Canyon; Oakland Hills Comment
  UC571138  Erodium macrophyllum H. L. Mason 1929-4-25 5209 Contra Costa Briones Road to Antioch Comment
  UC573067  Plagiobothrys bracteatus H. L. Mason 1928-4-15 4343 Contra Costa top Moraga Ridge Comment
  UC592179  Pholistoma membranaceum H. L. Mason 1929-3-15 5046 Contra Costa Nortonville Comment
  UC592184  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1928-4-29 4424 Contra Costa Mount Diablo Comment
  UC634568  Ceanothus cuneatus var. cuneatus H. L. Mason March, 1925 Contra Costa Mount Diablo Comment
  UC634927  Myosurus minimus H. L. Mason 1932-3-20 6854 Contra Costa Briones Road Comment
  UC635345  Delphinium patens subsp. patens H. L. Mason 1928-4-29 4440 Contra Costa s slope of mt Mount Diablo, Sycamore Canyon Comment
  UC635405  Camissoniopsis micrantha H. L. Mason 1929-3-31 5160 Contra Costa Antioch San Joaquin River (sand dike along river) Comment
  UC672117  Fritillaria agrestis Herbert L. Mason 1929-3-15 5057 Contra Costa about 5 mi from Brentwood (Marsh Creek Road); Marsh Creek Road Comment
  UC672349  Phacelia tanacetifolia Herbert L. Mason 1929-3-31 5140 Contra Costa hills n Mt. Diablo (Briones Rd) Comment
  UC672385  Phacelia californica Herbert L. Mason 1928-4-13 4300 Contra Costa cliffs facing Bay Richmond Comment
  UC672426  Phacelia distans Herbert L. Mason 1929-3-29 5122 Contra Costa Mount Diablo 762 Comment
  UC673338  Tropidocarpum gracile H. L. Mason 1929-3-31 5148 Contra Costa in pastures Briones Valley Comment
  UC908576  Gilia tricolor subsp. tricolor Herbert L. Mason 1929-3-29 5118 Contra Costa Mount Diablo 762 Comment
  UC908741  Collomia heterophylla Herbert L. Mason 1928-4-15 4361 Contra Costa woods along trail Moraga Ridge Comment
  UC912272  Centromadia pungens subsp. pungens H. L. Mason 1929-9-21 5438 Contra Costa Marsh Creek Road Comment
  UC912592  Madia exigua Herbert L. Mason 1932-5-4 7053 Contra Costa Laundry Farm Oakland Hills Comment
  UC912601  Lagophylla ramosissima Herbert L. Mason 1929-9-21 5432 a Contra Costa Marsh Creek road 3 mi above Clayton (summit of grade) Comment
  UC912661  Poa howellii Herbert L. Mason 1928-4-15 4350 Contra Costa e end Moraga Ridge Comment
  UC964777  Lathyrus vestitus var. vestitus Herbert L. Mason 1931-4-5 5829 Contra Costa road between Marsh Creek and Livermore Comment
  CAS-BOT-BC178471  Astragalus gambelianus H. L. Mason 1928-4-15 4345 Contra Costa East-facing grassy slope, Moraga Ridge Comment
  CAS-BOT-BC178472  Astragalus gambelianus H. L. Mason 1928-4-26 4380 Contra Costa Berkely - Oakland Hills Comment
  CAS-BOT-BC361693  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1952-4-14 14266 Contra Costa Vernal Pool 3.5 miles south of Byron Comment
  POM289510  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  POM312426  Myosurus sessilis H. L. Mason 1952-4-14 14263 Contra Costa 3.5 miles S of Byron. Comment
  POM313443  Ranunculus sceleratus H. L. Mason 1937-6-21 11547 Contra Costa 0.5 mile from the S end of Borden Hwy and 1.5 miles W of Byron. Comment
  RSA114067  Lasthenia fremontii H. L. Mason 1952-4-14 14260 Contra Costa 3.5 miles S of Byron Comment
  RSA93107  Erigeron petrophilus var. petrophilus H. L. Mason 1923-11-12 853 Contra Costa Low rocky slopes of Mt. Diablo Comment
Read comments
Feb 4 2013
  RSA93678  Filago gallica H. L. Mason 1928-4-26 4386 Contra Costa Berekeley-Oakland Hills Comment
  UC570693  Solanum americanum H. L. Mason 1929-9-21 5445 Contra Costa 1 mi e of junction with road to Antioch (Bordon Highway); Bordon Highway Comment
  UC634972  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa two mi above Clayton (Marsh Creek Road) 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
  UC672425  Phacelia distans Herbert L. Mason 1929-3-15 5053 Contra Costa canyon back of Nortonville Comment
  UC694157  Psilocarphus tenellus Herbert L. Mason 1932-4-15 6926 Contra Costa summit of Road Moraga to Lafayette Comment
Read comments
Oct 6 2006
  UCD102995  Lythrum californicum Herbert L. Mason 1955-7-14 14636 Contra Costa 1/2 mile E of Antioch Bridge. Comment
  UC672578  Veronica serpyllifolia subsp. humifusa H. L. Mason 1929-5-10 5283 Del Norte 10 mi s of Crescent City Comment
  UC908997  Polemonium carneum Herbert L. Mason 1929-5-10 5287 Del Norte on banks 2 mi n Smith River; n of Smith River Comment
  UC912245  Sedum laxum subsp. laxum Herbert L. Mason 1933-8-5 Del Norte Smith River Comment
  CAS-BOT-BC157359  Comarum palustre Herbert L. Mason 1940-7-25 12331 El Dorado Grass Lake, Luther Pass 2377 Comment
  CAS-BOT-BC452077  Potamogeton alpinus Herbert L. Mason 1929-10-4 5467 El Dorado West side Lake Tahoe above Emerald Bay, 14 miles from Tahoe City Comment
  CAS-BOT-BC45549  Arctostaphylos nevadensis George Mason; Roman Gankin 1958-5-25 s.n. El Dorado On either side of gravel road leading down to a bog at eastern foot of Meyer's grade, 50 yards n. of U.S. Highway 50. 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
  CAS-BOT-BC77253  Antennaria microphylla H. L. Mason 1939-7-8 12162 El Dorado Northeast end of Fallen Leaf Lake 1950 Comment
  JEPS13930  Linanthus filipes Herbert L. Mason 1926-5-28 3259 El Dorado between Shingle Springs and Coloma; Rose Springs 396 Comment
  JEPS18931  Collinsia sparsiflora var. collina Herbert L. Mason 1957-4-28 14692 El Dorado ca 5 mi se of Georgetown; Garden Valley 579 Comment
  JEPS18939  Chorizanthe polygonoides var. polygonoides Herbert L. Mason 1957-4-28 14693 -A El Dorado near Garden Valley; near Garden Valley 579 Comment
  RSA64472  Arctostaphylos nissenana H. L. Mason 1945-02 s.n. El Dorado Placerville Comment
Read comments
Jun 22 2012
  SEINET186009 Image available Antennaria rosea H. L. Mason 1939-7-8 12162 El Dorado NE end of Fallen Leaf Lake 1951 Comment
  UC1076086  Chrysolepis sempervirens Herbert L. Mason 1929-10-4 5474 El Dorado above Glen Alpine; Fallen Leaf Lake Comment
  UC1083187  Quercus vacciniifolia H. L. Mason 1926-5-30 3317 El Dorado ridge between Emerald Bay and Cascade Lake Comment
  UC1178939  Linanthus parviflorus Herbert L. Mason 1932-4-25 7014 El Dorado Pilot Hill Comment
  UC1191149  Linanthus parviflorus Herbert L. Mason 1928-5-4 4482 El Dorado 4 mi n Shingle Springs; Green Valley Comment
  UC555320  Amelanchier utahensis H. L. Mason 1928-5-3 4490 El Dorado mouth of Clark Creek Clark Creek (near bridge of Cosumnes River) Comment
  UC555546  Ceanothus serrulatus Herbert L. Mason 1926-5-30 3316 El Dorado ridge between Emerald Bay and Cascade Lake 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
  UC566949  Fraxinus latifolia H. L. Mason 1928-5-3 4490 a El Dorado near Cosumnes River bridge (at mouth of Clark Creek); Clark Creek 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
  UC571099  Ptelea crenulata H. L. Mason 1928-5-4 4521 El Dorado sw of Coloma; Granite Canyon Comment
  UC581503  Viola purpurea subsp. quercetorum H. L. Mason 1928-5-4 4522 El Dorado sw of Colom (Granite Canyon); Granite Canyon Comment
  UC634581  Ceanothus velutinus Herbert L. Mason 1926-5-30 3319 El Dorado ridge between Emerald Bay Lake Tahoe and Cascade Lake; ridge btw Emerald Bay Lake Tahoe and Cascade Lake Comment
  UC634586  Ceanothus velutinus Herbert L. Mason 1926-5-30 3319 El Dorado ridge between Emerald Bay Lake Tahoe and Cascade Lake; btw Emerald Bay Lake Tahoe and Cascade Lake Comment
  UC634985  Ranunculus alismifolius var. alismellus H. L. Mason 1926-5-20 3327 El Dorado Kit Carson Pass 2621 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
  UC635429  Paeonia brownii H. L. Mason 1926-5-30 3327 a El Dorado Kit Carson Pass; e side, just below pass 2621 Comment
  UC635577  Limnanthes striata H. L. Mason 1928-5-4 4494 El Dorado near Latrobe; Swift Ranch Comment
  UC672170  Rigiopappus leptocladus H. L. Mason 1932-4-12 7021 El Dorado Shingle Springs Comment
  UC672273  Logfia gallica H. L. Mason 1933-5-29 7246 El Dorado Shingle Springs Comment
  UC673465  Castilleja lacera H. L. Mason 1928-5-4 4507 El Dorado 4 mi n Shingle Spring; Greene Valley Comment
  UC908682  Leptodactylon pungens Herbert L. Mason 1926-5-30 3308 El Dorado above Emerald Bay (Lake Tahoe); , above Emerald Bay 1828 Comment
  UC912460  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1928-5-4 4512 El Dorado 4 mi n of Shingle Springs (Greene Valley); Greene Valley Comment
  UC912519  Helianthella californica subsp. nevadensis Herbert L. Mason 1932-4-25 7020 El Dorado Pilot Hill Comment
  UC912605  Meconella californica Herbert L. Mason 1928-5-4 4524 El Dorado Granite Canyon Comment
  UC971854  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1949-5-9 1294 El Dorado along US Hwy 50 4.3 mi sw Placerville Comment
  POM257135  Antennaria rosea H. L. Mason 1939-7-8 12162 El Dorado Northeast of end of Fallen Leaf lake 1951 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
  UC635343  Delphinium gracilentum H. L. Mason 1928-5-3 4487 El Dorado mouth of creek near bridge of Cosumnes River (slopes); Clark Creek Comment
  UC673620  Odontostomum hartwegii Herbert L. Mason 1928-5-4 4517 El Dorado between Green Valley and Eggars Comment
  UC971833  Limnanthes alba subsp. alba Charles T. Mason Jr. 1948-5-14 1191 El Dorado along w side of Southern Pacific Railroad tracks 1/2 mi n Whitney Station (about 3 mi e of Lincoln along US Hwy 99E) 45 Comment
  CAS-BOT-BC250709  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
  UC1099884  Potamogeton diversifolius Herbert L. Mason, S. Galen Smith 1949-7-14 989 Fresno 2 mi w of Clovis (on road to Cameo) Comment
  UC1100671  Cyperus erythrorhizos Herbert L. Mason and S. Galen Smith 1949-7-15 995 Fresno Hwy. 180 4.6 mi. s. White's Bridge; San Joaquin Valley 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
  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
  UC935777  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
  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
  UCD102992  Lythrum californicum Herbert L. Mason; S. Galen Smith 1948-8-18 8345 Fresno San Joaquin. Comment
  CAS-BOT-BC114270  Cyperus esculentus Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-7-28 8228 Fresno San Joaquin River at Firebaugh. Comment
  POM313105  Cyperus difformis H. L. Mason, S. Galen Smith 1948-8-17 8341 Fresno King s River east of Burrel, San Joaquin Valley Comment
  RSA26548  Phacelia distans H. L. Mason 1930-4-20 1 Fresno Six miles from Coalinga on road to Priest Valley. Comment
  SEINET10716719  Phalaris paradoxa Herbert L. Mason 1940-5-3 Mason 12252 Fresno On flooded land, Lyon and Hoag Ranch, nine miles SE of South Dos Palos 30 Comment
  SEINET8719260 Image available Phalaris paradoxa Herbert L. Mason 1940-1 12252 Fresno Lyon and Hoag Ranch, nine miles southeast of South Dos Palos 30 Comment
  UCD134583  Monolopia stricta Herbert L. Mason 1940-5-24 12252 Fresno 4 miles south of Firebaugh. Comment
  UCD138019  Sagittaria longiloba Herbert L. Mason; S. Galen Smith 1948-8-10 8313 Fresno adjacent to Mendota canal, southwest of Firebaugh. Comment
  SD51683  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14304 Glenn Black Diamond Ridge, Mendocino National Forest. 822 Comment
  UC1076027  Gilia capitata subsp. capitata Herbert L. Mason 1947-5-18 14783 Glenn two mi below summit Mendocino Pass Comment
  UC1212308  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14303 Glenn Black Diamond Ridge Inner North Coast Ranges, Mendocino National Forest 822 Comment
  UC1212509  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14306 Glenn Black Diamond Ridge Inner North Coast Ranges Comment
  UCD110518  Hesperolinon disjunctum Herbert L. Mason 1952-6-19 14306 Glenn Black Diamond Ridge, inner North Coast Ranges. Comment
  CAS-BOT-BC235884  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt East Fork of the Eel River near Garberville Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  UC570904  Whipplea modesta Herbert L. Mason 1932-7-21 7112 Humboldt on road from Arcata to Weaverville (e slope of mts.); Southfork Mountains Comment
  UC635137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  UC1093646  Ephedra trifurca Herbert L. Mason 1957-3-31 14683 Imperial near Yuma (desert w of the sand hills) Comment
  UC1077132  Ericameria nauseosa var. leiosperma Herbert L. Mason 1940-3-22 12244 Inyo Titus Canyon Death Valley National Monument, Grapevine Mountains, Titus C Comment
  UC1093892  Astragalus mohavensis Herbert L. Mason 1940-3-22 12231 Inyo Titus Canyon Death Valley National Monument, Grapevine Mountains (Grapevine Mountains, Death Valley National Monument) Comment
  UC1138207  Mimulus rupicola Herbert L. Mason 1940-3-22 12235 Inyo Titus Canyon Death Valley National Monument, Grapevine Mountains Comment
  UC791045  Nama rothrockii Herbert L. Mason 1948-9-3 13632 Inyo Onion Valley road 2651 Comment
  RSA0104126  Eriastrum densifolium subsp. austromontanum H. L. Mason 1948-9-3 13631 a Inyo Onion Valley Comment
  UC908865  Gilia scopulorum H. L. Mason 1940-3-22 12243 Inyo 4 mi e Victorville (Titus Canyon, Grapevine Mountains); Death Valley National Monument, Grapevine Mountains 883 Comment
  CAS-BOT-BC158277  Prunus fasciculata var. fasciculata Herbert L. Mason 1935-5-1 10007 Kern Ridge south of Isabella Comment
  CAS-BOT-BC255311  Chorizanthe xanti var. xanti H. L. Mason 1929-6-2 5354 Kern Tejon Pass, 30 miles from Bakersfield, Tehachapi Mountains Comment
  CAS-BOT-BC327817  Monolopia congdonii Herbert L. Mason 1935-4-30 9315 Kern 5 mi W of Bakersfield Comment
  CAS-BOT-BC38279  Caulanthus californicus Herbert L. Mason 1935-5-2 10001 Kern One mile east of Lost Hills, Northwest Kern County. Comment
  CAS-BOT-BC7358  Monolopia stricta Herbert Louis Mason 1935-5-2 9314 Kern 2 miles W of Los Hills, northwestern Kern County Comment
  CAS-BOT-BC76300  Canbya candida Herbert L. Mason 1935-4-30 10006 Kern Walker Pass. Comment
  NY230638  Monolopia stricta H. L. Mason 1935-5-2 9314 Kern Two miles west of Lost Hills, northwestern Kern County Comment
  NY31175  Eatonella congdonii H. L. Mason 1935-4-30 9315 Kern 5 miles west of Bakersfield Comment
  POM310911  Leptosiphon aureus H. L. Mason 1935-4-30 8348 Kern West side of Walker Pass near Summit. Comment
  SBBG27279  Collinsia callosa H. L. Mason 1935-4-29 10002 Kern 2 mi W of Walker Pass Comment
  SD45379  Leptosiphon aureus Herbert L. Mason 1935-4-30 8348 Kern West side of Walker Pass near summit. Comment
  SEINET199118  Mentzelia pectinata Herbert Mason 1952-4-6 14205 Kern South of Belridge. Comment
  UC1039633  Chorizanthe xanti Herbert L. Mason 1935-4-30 6266 Kern Hobo Hot Springs , Hobo Hot Springs (Kern River Canyon) Comment
  UC1056300  Logfia filaginoides Herbert L. Mason 1935-4-30 6274 Kern Onyx Comment
  UC1056301  Logfia filaginoides Herbert L. Mason 1935-4-30 6270 Kern just e Hobo Hot Springs; Kern River Canyon Comment
  UC1093903  Quercus wislizeni Herbert L. Mason 1929-6-2 5351 Kern 30 mi from Bakersfield; Tehachapi Mts., Tejon Pass Comment
  UC1100706  Eleocharis parishii Herbert L. Mason 1948-9-2 13628 Kern Walker Pass Comment
  UC1111020  Ancistrocarphus filagineus Herbert L. Mason 1935-5-2 8378 Kern Havilah; Kern River drainage Comment
  UC1178916  Arabis pulchra Herbert L. Mason 1935-4-30 8351 Kern Walker Pass Comment
  UC1179022  Nolina parryi Herbert L. Mason 1935-4-30 8349 Kern Walker Pass Comment
  UC1179045  Lasthenia microglossa Herbert L. Mason 1935-5-2 8382 Kern 2 mi se Hobo Hot Springs Comment
  UC545807  Prunus fasciculata Herbert L. Mason 1935-5-1 10007 Kern Ridge s of Isabella Comment
  UC545817  Caulanthus californicus Herbert L. Mason 1935-5-2 10001 Kern one mi e Lost Hills (nw Kern County); e of Lost Hills Comment
  UC545818  Collinsia callosa Herbert L. Mason 1935-4-29 10002 Kern 2 mi w Walker Pass Comment
  UC565487  Monolopia stricta H. L. Mason 1932-4-3 6911 Kern between Blackwell's Corner and Lost Hills Comment
  UC573132  Pectocarya setosa Herbert L. Mason 1932-4-1 6889 Kern 5 mi s Muroc; Mojave Desert Comment
  UC581175  Stylocline gnaphaloides H. L. Mason 1935-3-30 8243 Kern plains w Bakersfield Comment
  UC635053  Chorizanthe xanti H. L. Mason 1929-6-2 5354 Kern 30 mi from Bakersfield (Tejon Pass, Tehachapi Mountains); Tehachapi Mountains, Tejon Pass Comment
  UC635284  Camissonia campestris subsp. campestris H. L. Mason 1930-4-20 5566 Kern Caliente Creek Tehachapi Mountains Comment
  UC635297  Astragalus didymocarpus H. L. Mason 1932-4-1 6884 Kern five mi s Muroc (Mojave Desert); , s of Muroc Comment
  UC635524  Ceanothus greggii var. vestitus H. L. Mason 1929-6-2 5360 Kern Tejon Pass Tehachapi Mts. (30 mi from Bakersfield,) Comment
  UC635600  Eschscholzia minutiflora H. L. Mason 1932-4-1 6878 Kern 5 mi s Muroc (toward Roosevelt); Mojave Desert Comment
  UC635715  Androsace elongata subsp. acuta H. L. Mason 1932-3-31 6855 Kern Tehachapi Pass Comment
  UC673595  Eriophyllum ambiguum var. ambiguum Herbert L. Mason 1940-3-21 12229 Kern between Hobo Hot Springs and Democrat Springs; Kern Canyon Comment
  UC907833  Linanthus bicolor Herbert L. Mason 1934-3-28 8005 Kern 31 mi w Onyx (lower Kern River Canyon); Kern River Canyon Comment
  UC907888  Allophyllum gilioides subsp. gilioides Herbert L. Mason 1949-4-23 14003 Kern below Breckenridge Mt. rd. Kern Canyon Comment
  UC907957  Linanthus parryae Herbert L. Mason 1935-4-30 6271 Kern Onyx Comment
  UC908427  Gilia sinuata Herbert L. Mason 1934-3-28 8011 Kern four mi e Onyx (Kern River drainage); , e of Onyx Comment
  UC908438  Gilia interior Herbert L. Mason 1935-5-2 8376 Kern Havilah Kern River (Kern River drainage) Comment
  UC908557  Linanthus aureus Herbert L. Mason 1934-3-28 8013 Kern 4 mi e Onyx Comment
  UC908571  Gilia tricolor subsp. diffusa Herbert L. Mason 1935-5-2 8375 Kern Havilah Kern River drainage, Havilah Comment
  UC908809  Gilia latiflora subsp. davyi Herbert L. Mason 1932-4-2 6891 Kern 3 mi w Muroc (Mohave Desert); , w of Muroc Comment
  UC908829  Gilia brecciarum subsp. neglecta Herbert L. Mason 1935-3-29 8206 Kern two mi n Mohave; Mohave Desert, n of Mohave Comment
  UC964762  Androsace elongata subsp. acuta Herbert L. Mason 1938-4-16 11729 Kern Isabella Comment
  UCD48551  Navarretia nigelliformis subsp. nigelliformis Herbert L. Mason 1935-5-2 8387 Kern Plains east of Bakersfield, Kern County, California. Comment
  RSA0001434  Monolopia stricta H. L. Mason 1935-5-2 9314 Kern 2 mi W of Lost Hills. Comment
  SEINET10673348 Image available Monolopia stricta Herbert L. Mason 1935-5-2 Mason 9314 Kern Two miles west of Lost Hills, northwestern Kern County. Comment
  SEINET8729329 Image available Linanthus aureus Herbert L. Mason 1935-1 8348 Kern West side of Walker Pass near summit. Comment
  UC672367  Nama demissa var. demissa Herbert L. Mason 1930-4-20 5563 Kern Caliente Creek , Caliente Creek (Tehachapi Mountains) Comment
  UC907892  Linanthus montanus Herbert L. Mason 1949-4-23 14006 Kern 1 mi below Hobo Hot Springs; Kern River Canyon Comment
  SEINET200021  Cyperus erythrorhizos Herbert L. Mason, S. Galen Smith 1948-8-18 8350 Kings Canal just W of Stratford. Comment
  UC1101326  Myosurus minimus Herbert L. Mason 1953-4-2 14501 Kings about 3 mi e of Hanford Comment
  UC1101437  Lindernia dubia var. anagallidea Herbert L. Mason and S. Galen Smith 1948-8-18 8351 Kings canal just w Stratford; San Joaquin Valley Comment
  UC1192261  Bergia texana Herbert L. Mason, S. Galen Smith 1948-8-18 8347 Kings Just west of Stratford Comment
  UC1100726  Eleocharis macrostachya Herbert L. Mason, S. Galen Smith 1948-8-17 8337 Kings Grayson Comment
  UCD96587  Myosurus minimus Herbert L. Mason 1953-4-2 14501 Kings about 3 miles east of Hanford. Comment
  CAS-BOT-BC112807  Eleocharis macrostachya Herbert L. Mason 1946-7-27 12947 Lake Clear Lake, 2-3 miles north of Lakeport. Comment
  CAS-BOT-BC213577  Eragrostis hypnoides Herbert L. Mason 1945-8-24 12678 Lake East shore, Lower Lake Comment
  CAS-BOT-BC28220  Bolboschoenus fluviatilis Herbert L. Mason 1945-8-24 12673 Lake East Shore, Lower Lake Comment
  CAS-BOT-BC322611  Micropus amphibolus H. L. Mason 1936-5-2 11098 Lake Barlett Mountain Road, four miles above Lucerne Comment
  CAS-BOT-BC348487  Micropus californicus var. californicus H. L. Mason 1933-4-30 7229 Lake Near Aetna Springs Comment
  CAS-BOT-BC445598  Echinodorus berteroi Herbert L. Mason 1945-8-24 12672 Lake East shore, Lower Lake Comment
  CAS-BOT-BC452092  Potamogeton amplifolius Herbert L. Mason 1945-8-24 12683 Lake East shore, Lower Lake Comment
  CAS-BOT-BC83217  Myosurus minimus Herbert L. Mason 1953-4-4 14503 Lake Playa north of Lower Lake, Mannings Flat. Comment
  HSC17139  Navarretia jepsonii H. L. Mason 1945-6-28 12595 Lake Just below bridge E of Middletown Comment
  JEPS16753  Pogogyne serpylloides Herbert L. Mason 1934-5-5 8117 Lake Plain Southwest of Mount Konocti. Comment
  JEPS22801  Epilobium nivium Herbert L. Mason 1936-9-20 11533 Lake sw slope Snow Mountain 1828 Comment
  JEPS5805  Fritillaria purdyi H. L. Mason 1954-3-17 Lake about 3 mi ne of Middletown (on Hill 1030) Comment
  LA203599  Eriophyllum lanatum var. achilleoides L. R. Mason; Herbert L. Mason 1933-4-30 -- Constamce E 16 Lake Serpentine Ridge between Middleton & Pope Valley, about 1 mi. from Etna Springs Comment
  OBI14932  Streptanthus breweri Herbert L. Mason 1940-5-22 12308 a Lake 3 mi E of Middletown Comment
  POM257252  Gayophytum humile H. L. Mason 1934-5-5 8118 Lake Southwest of Mt. Konocti Comment
  POM310951  Collomia diversifolia H. L. Mason 1938-5-1 11741 Lake 3 miles east of Middletown Comment
  POM312383  Mollugo verticillata H. L. Mason 1946-7-27 12953 Lake Clear Lake, 2-3 miles north of Lakeport. Comment
  SD51678  Hesperolinon bicarpellatum Herbert L. Mason 1945-6-28 12596 Lake 2.8 miles northeast from Middletown. Comment
  SEINET196213  Navarretia viscidula Herbert L. Mason 1945-6-28 12607 Lake 2.5 miles south of Kelseyville Comment
  SEINET196692  Navarretia intertexta Herbert L. Mason 1945-5-12 12580 Lake 3 miles north of Lower Lake. Comment
  SEINET196699  Navarretia pubescens Herbert L. Mason 1945-5-12 12579 Lake Locomono Creek, E of Middletown. Comment
  SEINET200256  Navarretia bakeri Herbert L. Mason 1953-6-8 14533 Lake 1.5 miles west of Lower Lake Comment
  SEINET4854785  Navarretia pauciflora Herbert L. Mason 1945-5-12 12583 Lake 5 mi N of Lower Lake. Comment
  UC1076194  Eriogonum luteolum var. luteolum Herbert L. Mason 1937-5-27 11552 a Lake 10 mi s Kelseyville Comment
  UC1076334  Sidalcea hartwegii Herbert L. Mason 1933-4-30 7222 Lake near Aetna Springs; near Aetna Springs Comment
  UC1076448  Berberis aquifolium var. repens Herbert L. Mason 1925-12-31 2577 Lake <Bartlett> Springs Comment
  UC1076460  Grindelia hirsutula Herbert L. Mason 1925-12-31 2574 Lake Bartlett Mountain road Bartlett Mountain Comment
  UC1081569  Streptanthus glandulosus subsp. glandulosus Herbert L. Mason 1936-4-26 11091 Lake e side Bartlett Mountain Comment
  UC1083321  Juniperus californica Herbert L. Mason 1925-12-31 2570 Lake Bartlet Mt. Road Comment
  UC1093682  Selaginella wallacei Herbert L. Mason 1926-1-1 2585 Lake Upper Lake to Elk Mt. Comment
  UC1099983  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-8 13280 Lake near junction of Williams hwy. and Upper lake hwy. Bear Creek Comment
  UC1100142  Echinodorus berteroi Herbert L. Mason 1945-8-24 12672 Lake e. shore Lower Lake Comment
  UC1100247  Eragrostis hypnoides Herbert L. Mason 1946-7-27 12951 Lake Clear Lake 2-3 mi n Lakeport; Clear Lake Comment
  UC1100562  Cyperus squarrosus Herbert L. Mason 1945-8-24 12686 Lake e. shore Lower Lake Comment
  UC1100681  Scirpus acutus var. occidentalis Herbert L. Mason 1945-8-24 12674 Lake e shore Lower Lake; e shore Lower Lake Comment
  UC1100741  Eleocharis macrostachya Herbert L. Mason 1946-7-27 12947 Lake 2-3 mi N of Lakeport (Clear Lake) Comment
  UC1101531  Elatine heterandra Herbert L. Mason 1953-6-8 14547 Lake Snows Lake Comment
  UC1178812  Navarretia leucocephala subsp. bakeri Herbert L. Mason 1946-5-30 12802 Lake 1.5 mi w Lower Lake Comment
  UC1178888  Alnus rhombifolia Herbert L. Mason 1936-9-20 11534 Lake Bear Creek Snow Mountain (w base of mt.) Comment
  UC1178928  Navarretia mellita Herbert L. Mason 1953-6-8 14523 Lake Black Oak Villa Butts Canyon Comment
  UC1178930  Damasonium californicum Herbert L. Mason 1953-6-8 14532 Lake 1.5 mi. w. Lower Lake Comment
  UC1178931  Navarretia atractyloides Herbert L. Mason 1953-6-8 14530 Lake 1 mi n Lower Lake Comment
  UC1179027  Orobanche fasciculata Herbert L. Mason 1940-5-22 12308 Lake Bartlett Mountain. Comment
  UC1191275  Rumex maritimus Herbert L. Mason Aug 1930 5716 Lake Clear Lake Comment
  UC1191382  Cypselea humifusa Herbert L. Mason 1945-8-24 12684 Lake e shore Lower Lake Comment
  UC1191393  Amaranthus californicus Herbert L. Mason 1945-8-24 12676 Lake e shore of Lower Lake Lower Lake Comment
  UC1192336  Polygonum amphibium Herbert L. Mason 1945-6-29 12622 Lake Boggs Lake Mount Hanna (at base of mt.) Comment
  UC1540448  Phacelia rattanii Herbert L. Mason 1937-5-27 11551 Lake six mi n Lower Lake Comment
  UC566758  Eriophyllum lanatum var. achilleoides H. L. Mason 1925-12-31 2567 Lake Bartlet Mountain Road Comment
  UC570736  Pogogyne douglasii H. L. Mason Jun 1930 5683 Lake four miles east of Middletown Comment
  UC571174  Iris macrosiphon H. L. Mason 1926-3-21 2762 Lake between Middletown and Mt. St. Helena Comment
  UC581521  Viola douglasii H. L. Mason 1926-3-21 2772 Lake between Middletown and Mount St. Helena Comment
  UC595054  Nemophila pedunculata H. L. Mason 1938-5-1 11744 Lake Barlett Springs Bartlett Springs Comment
  UC634627  Ceanothus lemmonii H. L. Mason 1925-12-31 2575 Lake Bartlett Mountain Comment
  UC634638  Garrya flavescens H. L. Mason 1925-12-30 2563 Lake summit of road between Hopland and Lakeport; Mayacama Range Comment
  UC635189  Rhus trilobata H. L. Mason 1926-3-21 2763 Lake Toll House Canyon between Middletown and Mount St. Helena; Toll House Canyon Comment
  UC635551  Saxifraga integrifolia Herbert L. Mason 1926-3-21 2767 Lake about 2 mi s of Middletown (along St. Helena Creek Road) Comment
  UC665686  Fritillaria purdyi Herbert L. Mason 1941-3-16 12385 Lake 3 mi e of Middletown (Inner North Coast Range); Inner North Coast Range Comment
  UC672096  Fritillaria recurva Herbert L. Mason 1926-3-21 2777 Lake Middletown to Mount St. Helena via Toll House Canyon Toll House Canyon; Mount St. Helena, Toll House Canyon Comment
  UC672308  Baccharis pilularis Herbert L. Mason 1925-12-31 2571 Lake Bartlet Mountain Road Comment
  UC672532  Mimulus kelloggii H. L. Mason 1929-4-29 5248 Lake 2.9 mi w Lakeport (road from Hopland to Lakeport) Comment
  UC673343  Athysanus pusillus H. L. Mason 1929-4-29 5237 Lake 2.9 mi w of Lakeport Comment
  UC673448  Triphysaria pusilla H. L. Mason 1926-3-21 2757 Lake Toll House Canyon between Middletown and Mount St. Helena; btw Middletown and Mount St. Helena Comment
  UC673622  Logfia filaginoides H. L. Mason 1933-4-30 7232 Lake near Aetna Springs; Serpentine Ridge Comment
  UC673624  Ancistrocarphus filagineus H. L. Mason 1933-4-30 7230 Lake near Aetna Springs Comment
  UC673632  Ancistrocarphus filagineus H. L. Mason 1933-4-30 7234 Lake 10 mi n, on road from Middletown to Pope Valley Pope Valley Comment
  UC693854 Image available Eriastrum brandegeeae H. L. Mason 1945-6-28 12604 Lake se Borax Ridge; Obsidian Lake; Obisidian ridge, southeast of Borax Lake, Lake Co. Comment
  UC907806  Navarretia atractyloides Herbert L. Mason 1945-6-28 12601 Lake se of Borax Lake Comment
  UC908082  Navarretia tagetina Herbert L. Mason 1946-5-30 12789 Lake near Middletown; Locomono Creek Comment
  UC908139  Navarretia pubescens Herbert L. Mason 1945-5-12 12579 Lake e of Middletown; Locomono Meadow Comment
  UC908801  Linanthus jepsonii Herbert L. Mason 1933-4-30 7217 Lake Mount St. Helena Comment
  UC912267  Lasthenia burkei Herbert L. Mason 1934-5-5 8128 Lake meadow about one-half way between Kelseyville and Lower Lake Comment
  UC912373  Downingia cuspidata Herbert L. Mason 1934-5-5 8120 Lake sw of Mount Konocti Comment
  UC921147  Cyperus squarrosus Herbert L. Mason August, 1930 5710 Lake Clear Lake Comment
  UC935722  Sagittaria cuneata Herbert L. Mason 1945-8-24 12685 Lake East shore Lower Lake; e shore Lower Lake Comment
  UC936200  Eragrostis hypnoides Herbert L. Mason August, 1930 5728 Lake Lakeshore Clear Lake; , Lakeshore Comment
  UC936202  Panicum capillare H. L. Mason August, 1930 5725 Lake Lakeshore Clear Lake; , Clear Lake Comment
Read comments
Feb 24 2009
  UC956835  Ceratophyllum demersum Herbert L. Mason 1946-7-27 12955 Lake Upper Lake- Lakeport road Upper Lake - Lakeport road Comment
  UC963786  Allophyllum divaricatum Herbert L. Mason 1945-6-29 12614 Lake 3 mi. s. Kelseyville Comment
  UC963803  Navarretia leucocephala subsp. minima Herbert L. Mason 1945-6-28 12599 Lake Excelsior Valley Comment
  UC964796  Linanthus bolanderi Herbert L. Mason 1938-5-1 11748 Lake about 4 mi from Lucerne; Bartlett Mountain 1158 Comment
  UCD107093  Ludwigia palustris H. L. Mason 1945-6-29 12627 Lake Boggs Lake, at base of Mount Hanna. Comment
  UCD120692  Phacelia suaveolens Herbert L. Mason 1940-5-10 14805 Lake Obsidian pond, north of Lower Lake. Comment
  UCD45205  Quercus berberidifolia H. L. Mason 1926-1-1 2597 Lake Blue Lakes. Comment
Read comments
Jun 2 2008
  UCD48703  Navarretia tagetina Herbert L. Mason 1946-5-30 12789 Lake Locomono Creek near Middletown, Lake County, California. Comment
  CAS-BOT-BC232652  Navarretia pubescens Herbert L. Mason 1935-5-30 8330 Lake Between Lower Lake and Knoxville Mine Comment
  CAS-BOT-BC512625  Eriastrum abramsii Herbert L. Mason 1945-5-12 12585 Lake Ridge between Burns Valley and Borax Lake Comment
  JEPS21448  Antirrhinum cornutum Herbert L. Mason 1940-5-10 14804 Lake n of Lower Lake Comment
  POM312355  Amaranthus californicus H. L. Mason 1945-8-24 12676 Lake East shore, Lower Lake. Comment
  POM312979  Zannichellia palustris H. L. Mason, Verne Grant 1947-7-8 13281 Lake Bear Creek near Jct of Williams Hwy and Upper Lake Hwy. Lake County Comment
  POM313025  Potamogeton nodosus H. L. Mason 1945-8-24 12683 Lake East shore, Lower Lake. Comment
  POM313045  Schoenoplectus fluviatilis H. L. Mason 1945-8-24 12673 Lake East shore, Lower Lake. 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
  RSA84423  Aquilegia eximia H. L. Mason 1933-9-24 s.n. Lake St. Helena Creek, E slope of Mt. St. Helena Comment
  SEINET10780562 Image available Eriastrum brandegeeae Herbert L. Mason 1945-6-28 Mason 12604 Lake Obsidian Ridge, southeast of Borax 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
  SEINET8729333 Image available Linanthus bolanderi Herbert L. Mason 1938-1 11748 Lake Bartlett Mountain, about 4 miles from Lucerne. Comment
  UC1212248  Hesperolinon micranthum Herbert L. Mason 1935-5-30 8329 Lake two mi e Middletown; Inner North Coast Ranges Comment
  UC632787  Collinsia greenei H. L. Mason 1936-4-26 11094 Lake e side Bartlett Mtn; Inner North Coast Ranges Comment
  UC907826  Linanthus bolanderi Herbert L. Mason 1946-5-30 12805 Lake w slope Bartlett Mountain (road branch to High Valley) Comment
  UC907940  Linanthus bicolor Herbert L. Mason 1932-5-26 A 7219 Lake 2 mi s Wilbur Comment
  UC908080  Navarretia pubescens Herbert L. Mason 1945-6-28 12592 Lake 1 mi e Middletown; Lokomono Creek Bridge Comment
  UC908428  Navarretia intertexta Herbert L. Mason 1945-6-29 12613 Lake wash of Kelsey Creek Kelsey Creek Comment
  UC1101368  Ranunculus aquatilis var. capillaceus Herbert L. Mason and Verne Grant 1947-7-9 13290 Lassen 5 mi e Bieber (irrigation ditch) Comment
  UC1101424  Limosella acaulis Herbert L. Mason and Verne Grant 1947-7-9 13293 Lassen 5 mi e Bieber Comment
  UC1101519  Callitriche verna Herbert L. Mason and Verne Grant 1947-7-9 13294 Lassen 5 mi e Bieber Comment
  UC1199810  Orobanche corymbosa subsp. corymbosa Herbert L. Mason 1957-7-5 14715 Lassen Madeline Plains (town south of Madeline) 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-BC178632  Astragalus coccineus H. L. Mason 1926-4-27 3044 Los Angeles Rock Creek, Mojave Desert slope of San Gabriel Mountains Comment
  CAS-BOT-BC226339  Gilia latiflora subsp. davyi Herbert L. Mason 1932-4-1 6869 Los Angeles One mile east of Lancaster, Mohave [Mojave] Desert Comment
  CAS-BOT-BC252970  Eriogonum reniforme H. L. Mason 1926-4-26 3012 Los Angeles Near Rock Creek, Mohave Desert Comment
  POM257262  Camissonia claviformis subsp. claviformis H. L. Mason 1926-4-27 3038 Los Angeles Rock Creek. Comment
  SFV16521  Astragalus douglasii var. douglasii S. Mason 1993-5-2 s. n. Los Angeles Mojave Desert Off West State Route 138, 1.0 miles past West 110th Street, south on dirt road 0.4 miles in and 30 feet off west roadside. 762 Comment
  UC1039780  Castilleja plagiotoma H. L. Mason 1926-4-26 2972 Los Angeles 4 mi s Vincent (Mint Canyon Road, Soledad Pass); Soledad Pass Comment
  UC1076227  Lupinus odoratus Herbert L. Mason 1926-4-26 3018 Los Angeles Little Rock Comment
  UC1076386  Ephedra nevadensis H. L. Mason 1930-4-20 5593 Los Angeles hills in Rock Creek region Mohave Desert, Rock Creek Comment
  UC1076450  Selaginella bigelovii Herbert L. Mason 1926-4-26 2941 Los Angeles upper rd. Pacoima Wash; San Gabriel Mts. Comment
  UC1076474  Krascheninnikovia lanata Herbert L. Mason 1930-4-20 5591 Los Angeles hills in the Rock Creek region Mohave Desert, Rock Creek region Comment
  UC1076496  Grayia spinosa Herbert L. Mason 1926-4-26 2992 Los Angeles 1 mi. e. Palmdale Comment
  UC1083109  Lycium cooperi Herbert L. Mason 1926-4-26 2969 Los Angeles Mint Canyon Road, summit of 1st grade San Gabriel Mts. Comment
  UC566689  Chaenactis fremontii H. L. Mason 1930-4-20 5598 Los Angeles hills in the vicinity of Rock Creek; Mohave Desert Comment
  UC570716  Trichostema lanceolatum Herbert L. Mason 1926-10-16 3643 Los Angeles Pasadena Comment
  UC573070  Cryptantha pterocarya H. L. Mason 1932-4-1 6866 Los Angeles 1 mi e Lancaster; Mojave Desert Comment
  UC573134  Cryptantha micrantha Herbert L. Mason 1932-4-1 6867 Los Angeles 1 mi e Lancaster; Mojave Desert Comment
  UC573151  Amsinckia tessellata var. tessellata Herbert L. Mason 1926-4-26 3010 Los Angeles Little Rock Comment
  UC634893  Canbya candida Herbert L. Mason 1926-4-26 3020 Los Angeles Little Rock Creek Mojave Desert Comment
  UC635062  Chorizanthe staticoides Herbert L. Mason 1926-4-26 2961 Los Angeles 4 mi w Saugas; w of Saugas Comment
  UC635610  Eschscholzia minutiflora H. L. Mason 1926-4-27 3043 Los Angeles Rock Creek Comment
  UC635653  Astragalus didymocarpus H. L. Mason 1926-4-26 2963 Los Angeles four mi w Saugus; w of Saugus Comment
  UC635655  Goodmania luteola Herbert L. Mason 1932-4-1 6877 Los Angeles road Roosevelt to Muroc; Mojave Desert Comment
  UC635807  Eriogonum pusillum Herbert L. Mason 1926-4-26 3012 Los Angeles near Rock Creek; Mohave Desert Comment
  UC672386  Phacelia brachyloba Herbert L. Mason 1927-6-11 3745 Los Angeles Mt. Wilson San Gabriel Mts. 1524 Comment
  UC672435  Phacelia davidsonii Herbert L. Mason 1926-4-27 3029 Los Angeles Rock Creek San Gabriel Mountains 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
  UC908483  Gilia latiflora subsp. latiflora Herbert L. Mason 1932-4-1 6869 Los Angeles one mi e Lancaster; Mohave Desert, e of Lancaster Comment
  UC908803  Linanthus bigelovii Herbert L. Mason 1932-4-1 6860 Los Angeles 1 mi e Lancaster; Mohave Desert Comment
  UC908835  Gilia aliquanta Herbert L. Mason 1926-4-26 2973 Los Angeles four mi s Vincent; Mint Canyon Highway, Soledad Pass Comment
  UC908839  Gilia latiflora subsp. latiflora Herbert L. Mason 1926-4-26 3004 Los Angeles Little Rock Creek Mohave Desert, Little Rock Creek Comment
  UC908890  Gilia modocensis Herbert L. Mason 1926-4-27 3033 Los Angeles Rock Creek San Gabriel Mts., Rock Creek Comment
  UC909119  Saltugilia splendens subsp. splendens Herbert L. Mason 1926-4-27 3037 Los Angeles Rock Creek San Gabriel Mts., Rock Creek Comment
  UC912563  Layia glandulosa Herbert L. Mason 1926-4-26 3000 Los Angeles Little Rock Comment
  UCD119611  Cryptantha circumscissa Steve Mason 1993-5-1 27 Los Angeles Sufur Springs Road, 200 feet up road from Angeles Creek Highway, restroom parking lot to left on edge of slope looking down at Angeles Crest Highway. 1798 Comment
Read comments
Dec 9 2014
  UCD128879  Ambrosia salsola Steve Mason 1993-5-2 33 Los Angeles Mojave Desert, just N of Saddleback Butte State Park on E. 190th St. (N5), 0.1 mi. N of Ave. J., 50-100' off East side of road. 853 Comment
  UCD133256  Ephedra viridis Stephen Mason 1995-5-14 65 Los Angeles Vallyermo, Big Rock Creek Rd., just past Sycamore Flat Campground, northern edge of Transverse Range. 1066 Comment
  UCD45196  Quercus X alvordiana Herbert L. Mason 1927-5-29 3737 a Los Angeles Tejon Pass, Sierra Liebre Mts. Comment
  CAS-BOT-BC469352  Allium fimbriatum var. fimbriatum H. L. Mason 1926-4-26 3022 Los Angeles Near Rock Creek, north side of San Gabriel Mountians Comment
  SEINET12190917  Melaleuca nesophila E. Mason, Tebbett 1950-1 s.n. Los Angeles resort near Los Angeles Comment
  SEINET12234132  Acer macrophyllum E. Mason, Wunderly, J. 1945-1 s.n. Los Angeles Eaton's Canyon, Pasadena Comment
  SEINET8729330 Image available Linanthus aureus Herbert L. Mason 1926-1 2945 Los Angeles Pacoima Wash, foothills of San Gabriel Mountains. Comment
  UC1076490  Arenaria macradenia var. macradenia Herbert L. Mason 1926-4-26 2977 Los Angeles Summit of Mint Canyon Comment
  UC565466  Arabis pulchra H. L. Mason 1926-4-26 2978 Los Angeles Summit of Mint Canyon San Gabriel Mountains Comment
  UC566773  Coreopsis bigelovii Herbert L. Mason 1926-4-27 3046 Los Angeles between Rock Creek and Little Rock Creek (on Big Pines Recreation Camp road) Comment
  UC672372  Eriodictyon crassifolium Herbert L. Mason 1926-4-26 2948 Los Angeles Pasadena to Rock Creek Pacomia Wash (Mohave Desert); , Pacomia Wash Comment
Read comments
Sep 25 2014
  UC908805  Gilia aliquanta Herbert L. Mason 1926-4-27 3049 Los Angeles along Los Angeles Co. Park Road between Little Rock Creek; Mohave Desert, btw Rock Creek and Little Rock Creek Comment
  UC908819  Gilia leptantha subsp. transversa Herbert L. Mason 1926-4-27 3047 Los Angeles between Rock Creek and Little Rock Creek ((Big Pines Recreation Park Road), Los Angeles Co. Park Road, Mohave Desert); Mohave Desert, btw Rock Creek and Little Rock Creek Comment
  UC909058  Eriastrum sapphirinum Herbert L. Mason 1948-6-15 3787 Los Angeles cirque slide s Baldy; San Antonio Wash 2194 Comment
  UCD15431  Gilia scopulorum S. Mason,; H. Mason, and C. Katzfey 1995-4-23 54 Los Angeles California, Los Angeles Co.; in the northern foothills of Transverse Range/Mojave Desert foothills near Little Rock; along Mt. Emma Road, 0.8 miles above Ft. Tejon Rd.; along the right side of the road in a road cut; 914 Comment
  UC1076466  Phalacroseris bolanderi Herbert L. Mason 1941-7-7 12499 Madera s of Givens Meadows; Yosemite National Park, Buck Camp Comment
  UC1076524  Pedicularis attollens Herbert L. Mason 1941-7-7 12513 Madera just s of the Givens Lake Trail junction; Sierra Nevada, Yosemite National Park 2865 Comment
  UC1077078  Lomatium nevadense var. parishii Herbert L. Mason 1941-7-7 12500 Madera near Givens Creek Moraine Meadows (Yosemite Nat'l Park); , Moraine Meadows 2804 Comment
  UC1093943  Menyanthes trifoliata Herbert L. Mason 1941-7-7 12505 Madera just s of Givens Lake trail junction (Sierra Nevada, Yosemite National Park); Sierra Nevada, Yosemite National Park 2865 Comment
  UC1111590  Dodecatheon subalpinum Herbert L. Mason 1941-7-9 12516 Madera ridge w Moraine Meadows (Sierra Nevada); , Yosemite National Park 2682 Comment
  UC1111591  Caltha biflora Herbert L. Mason 1941-7-7 12504 Madera Bog just south of the Givens Lake trail junction, Yosemite National Park, Sierra Nevada. 2865 Comment
  UC1111601  Gayophytum racemosum Herbert L. Mason 1941-7-14 12525 Madera Ottoway Lake Sierra Nevada, Yosemite National Park 3048 Comment
  UC566802  Bowlesia incana Herbert L. Mason 1929-3-24 5103 Madera 18 mi e of Madera (at junction of Yosemite Road) Comment
  UC635448  Hesperomecon linearis H. L. Mason 1929-3-23 5096 Madera Hills back of Madera Comment
  UC635578  Limnanthes douglasii subsp. rosea H. L. Mason 1929-3-24 5106 Madera 18 mi e Madera (at junction of Yosemite Road) Comment
  UCR66532  Linanthus grandiflorus H. L. Mason 1940-5-5 12275 Madera Los Banos Creek Comment
  CAS-BOT-BC153891  Erythranthe grayi Herbert L. Mason 1938-7-16 11953 Madera Four miles south of Miami Ranger Station; Sierra Nevada 1219 Comment
  CAS-BOT-BC514831  Eriastrum pluriflorum subsp. pluriflorum H. L. Mason 1938-7-16 11956 Madera Sierra Nevada: 2 mi S of South Fork 1127 Comment
  HSC17103  Leptosiphon grandiflorus H. L. Mason 1940-5-5 12275 Madera Los Banos Creek Comment
  POM256992  Wyethia elata H. L. Mason 1938-7-16 11952 Madera 4 miles south of Miami Ranger Station 1220 Comment
  CAS-BOT-BC123074  Limnanthes douglasii var. sulphurea Herbert Louis Mason; Annetta Mary Carter 1938-5-18 1413 Marin Point Reyes Peninsula, 12 miles from Inverness. Comment
  CAS-BOT-BC13135  Agoseris hirsuta Herbert L. Mason 1917-4-28 s.n. Marin Mill Valley Comment
  CAS-BOT-BC147257  Rubus parviflorus H. L. Mason 1917-4-28 s.n. Marin Mt. Tamalpais Comment
  CAS-BOT-BC226657  Leptosiphon grandiflorus Herbert L. Mason 1932-7-24 7123 Marin Point Reyes Comment
  CAS-BOT-BC99420  Baccharis pilularis H. L. Mason 1922-3-18 s.n. Marin Near pipe line bridge, Mt. Tamalpais Comment
  POM257165  Gilia capitata subsp. chamissonis H. L. Mason, Annetta Carter 1938-5-18 11840 Marin Point Reyes Peninsula, 12.5 miles from Inverness. Comment
  POM313222  Glyceria declinata H. L. Mason, Malcolm A. Nobs 1949-4-29 739 Marin Marsh at head of Tomales Bay on Bear Creek above junction with Mill Creek. Comment
  RSA151810  Hesperolinon congestum H. L. Mason 1940-5-20 122289 Marin Back of Tiburon, Tiburon Peninsula. 30 Comment
  SEINET5763377 Image available Nasturtium officinale Herbert L. Mason 1941-1 12424 Marin Tomales Point, 1 mi W of Indian Beach 91 Comment
  UC1076089  Lithocarpus densiflorus Herbert L. Mason 1924-10-12 1112 Marin se slope Mt. Tamalpais Comment
  UC1076428  Alnus rubra Herbert L. Mason 1924-11-16 1143 Marin Willow Camp Comment
  UC1081510  Castilleja affinis subsp. neglecta H. L. Mason 1928-4-28 4402 Marin Tiburon Peninsula Comment
  UC1083326  Torreya californica Herbert L. Mason 1926-3-6 2684 Marin Mt. Tamalpais Comment
  UC1100490  Carex obnupta Herbert L. Mason 1932-7-24 7122 Marin Inverness Ridge Comment
  UC1100798  Scirpus californicus Herbert L. Mason 1946-7-24 12918 Marin 2.8 mi n Lake Ranch (margin of first lake s of Bear Valley); margin of first lake s of Bear Valley Comment
  UC1101200  Rumex conglomeratus Herbert L. Mason 1946-7-24 12930 Marin second lake s on road to Lake Ranch Bear Valley Comment
  UC1101372  Ranunculus aquatilis var. capillaceus Herbert L. Mason 1946-7-24 12940 Marin near Double Point; Lake Ranch Comment
  UC1179034  Juncus bolanderi Herbert L. Mason 1932-7-24 7117 Marin Inverness Ridge Comment
  UC1192010  Galium trifidum Herbert L. Mason 1946-7-24 12937 Marin third lake (at Double Point) s Bear Valley (on road to Lake Ranch) Comment
  UC1192369  Athyrium filix-femina var. cyclosorum Herbert L. Mason 1946-7-24 12938 Marin Third lake (at Double Point) s of Bear Valley (on rd to Lake Ranch) Comment
  UC1212434  Hesperolinon congestum Herbert L. Mason 1940-5-20 12289 Marin serpentine outcrop back of Tiburon; Tiburon Peninsula 30 Comment
  UC501346  Torreya californica Herbert L. Mason 1925-4-12 1322 Marin Mt. Tamalpais Comment
  UC555322  Heteromeles arbutifolia H. L. Mason 1924-11-15 1140 Marin Willow Camp Rattlesnake, Steep Ravine (via Pipe Line, Rattlesnake and Steep Ravine) Comment
  UC555332  Thermopsis californica var. californica Herbert L. Mason 1925-4-12 1332 Marin Pipe Line Trail Mt. Tamalpais Comment
  UC555356  Trifolium depauperatum var. amplectens Herbert L. Mason 1925-4-12 1344 Marin Mt. Tamalpais Comment
  UC555377  Trifolium variegatum var. melananthum H. L. Mason 1928-4-13 4311 Marin n San Rafael Comment
  UC555473  Trifolium albopurpureum var. dichotomum Herbert L. Mason 1927-4-26 5214 Marin n; hills; Alpine Lake Comment
  UC555475  Pickeringia montana var. montana Herbert L. Mason 1925-4-12 1343 Marin Pipe Line Trail Mt. Tamalpais Comment
  UC555543  Lotus junceus var. biolettii Herbert L. Mason 1925-4-12 1331 Marin Mt. Tamalpais Comment
  UC565469  Arabis blepharophylla H. L. Mason 1927-4-26 5216 Marin w of Alpine Lake (on road from Fairfax to crest of Bolinas Ridge); Bolinas Ridge Comment
  UC566945  Cicendia quadrangularis H. L. Mason 1928-4-13 4309 Marin n of San Rafael Comment
  UC570962  Ribes sanguineum var. glutinosum H. L. Mason 1926-2-21 2656 Marin Inverness Comment
  UC571053  Ledum glandulosum H. L. Mason 1926-2-21 2657 Marin on road from Point Reyes Light Comment
  UC571143  Crassula connata var. subsimplex H. L. Mason 1926-3-6 2693 Marin Corte Madera Ridge Comment
  UC571181  Iris douglasiana Herbert L. Mason 1925-4-12 1342 Marin Mount Tamalpais Comment
  UC629776  Gilia capitata subsp. chamissonis Herbert Mason, Annetta Carter 1938-5-18 11840 Marin 12.5 mi from Inverness (Point Reyes Peninsula); , 12.5 mi from Inverness Comment
  UC634572  Ceanothus gloriosus var. gloriosus H. L. Mason 1926-2-21 2662 Marin near lighthouse on sea cliffs, Point Reyes Comment
  UC634853  Ceanothus velutinus Herbert L. Mason 1926-3-6 2699 Marin 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
  UC634895  Crocanthemum scoparium var. vulgare Herbert L. Mason 1925-4-12 1335 Marin Pipe line trail Mt. Tamalpais Comment
  UC635022  Calystegia purpurata H. L. Mason 1924-11-16 1154 Marin Willow Camp , Willow Camp (Mount Tamalpais) Comment
  UC635454  Dicentra formosa H. L. Mason 1926-2-21 2649 Marin road from Inverness to Point Reyes Lighthouse Comment
  UC635492  Claytonia sibirica H. L. Mason 1926-2-21 2655 Marin road from Inverness to Point Reyes Lighthouse (near summit of grade) Comment
  UC635632  Limnanthes douglasii subsp. douglasii H. L. Mason 1928-4-13 4310 Marin marshy meadow n San Rafael (near sloughs) Comment
  UC672138  Camassia quamash Herbert L. Mason 1929-4-26 5225 Marin Inverness Ridge, near summit of Light House Road Inverness Ridge; , Light House Road Comment
  UC672280  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1928-4-28 4411 Marin Tiburon Peninsula Comment
  UC672297  Eurybia radulina H. L. Mason 1925-9-17 2228 Marin near Phoenix Lake Comment
  UC672450  Torreya californica H. L. Mason 1925-9-17 2334 Marin Rose Valley to Lake Lagunitas Comment
  UC672490  Cordylanthus maritimus subsp. palustris H. L. Mason June, 1930 5670 Marin Dillons Beach; just above tidewater Comment
  UC672604  Myrica californica Herbert L. Mason 1924-10-12 1113 Marin s.e. slope Mt. Tamalpais Comment
  UC672656  Arctostaphylos nummularia H. L. Mason 1926-2-28 2677 Marin s slopes Mount Tamalpais Comment
  UC673298  Cardamine californica Herbert L. Mason 1925-1-18 1180 Marin hills n San Rafael; hills n of San Rafael Comment
  UC673461  Castilleja attenuata H. L. Mason 1928-4-13 4316 Marin n of San Rafael Comment
  UC907887  Linanthus grandiflorus H. L. Mason 1932-7-24 7123 Marin Point Reyes Comment
  UC908980  Gilia achilleifolia subsp. multicaulis Herbert L. Mason 1925-4-12 1337 Marin Pipe line trail Mount Tamilpais, Mill Valley (Mill Valley, Mount Tamalpais) Comment
  UC909079  Linanthus parviflorus Herbert L. Mason 1932-7-24 7124 Marin Point Reyes Comment
  UC912590  Calycadenia multiglandulosa Herbert L. Mason 1928-4-28 4410 Marin Tiburon Peninsula Comment
  UC912647  Danthonia californica H. L. Mason 1928-4-28 4415 Marin Tiburon Peninsula Comment
  UC912648  Koeleria macrantha H. L. Mason 1928-4-28 4416 Marin Tiburon Peninsula Comment
  UC936136  Lemna minuscula Herbert L. Mason 1946-7-24 12926 Marin about 2.5 mi nw of Lake Ranch (e side of Drakes Bay); Drakes Bay 60 Comment
  UCD102280  Ribes menziesii Herbert L. Mason 1946-7-24 12924 Marin Second lake south of Bear Valley on road to Lake Ranch. Comment
  UCD125244  Monardella sinuata subsp. nigrescens Herbert Mason; Annetta Carter 1938-5-18 1417 Marin Point Reyes Peninsula, 12.5 miles from Inverness. Comment
  CAS-BOT-BC378888  Ranunculus californicus var. californicus H. L. Mason 1925-1-18 1181 Marin San Rafael to Forbes Comment
  CAS-BOT-BC443947  Claytonia sibirica H. L. Mason 1926-2-21 2655 Marin Road from Inverness to Point Reyes Lighthouse Comment
  CAS-BOT-BC499922  Orobanche fasciculata H. L. Mason 1917-3-1 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-BC600  Dicentra formosa subsp. formosa Herbert L. Mason 1917-4-4 73 Marin Tocaloma Comment
  RSA435680  Limnanthes douglasii subsp. douglasii H. L. Mason, Annetta Carter 1938-5-18 s.n. Marin Point Reyes Peninsula, 12 miles from Inverness Comment
  RSA92271  Calycadenia multiglandulosa subsp. bicolor H. L. Mason 1928-4-28 4410 Marin Tiburon Peninsula Comment
  UC555364  Trifolium wormskioldii H. L. Mason 1927-4-26 5221 Marin in bog at base of rd where stream empty into Bolinas Bay Comment
  UC555608  Trifolium macraei H. L. Mason 1927-4-26 5219 Marin w side Bolinas Ridge Comment
  UC634981  Ranunculus californicus H. L. Mason 1925-1-18 1181 Marin San Rafael-Forbes 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-BC18172  Bulbostylis capillaris H. L. Mason 1938-7-13 11946 Mariposa Yosemite National Park. Meadow, Base of El Capitan, Yosemite Valley. 1226 Comment
  CAS-BOT-BC229128  Claytonia megarhiza Herbert L. Mason 1935-7-29 s.n. Mariposa Yosemite National Park. Bernice Lake Comment
  CAS-BOT-BC400756  Asarum lemmonii Herbert L. Mason 1936-5-15 11132 Mariposa East fork of the Chowchilla River, Chowchilla Mountains 1463 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
  CAS-BOT-BC63958  Antennaria argentea Herbert L. Mason 1936-7-12 11240 Mariposa Peregoy Meadow, Glacier Point road 2255 Comment
  JEPS21738  Dodecatheon subalpinum H. L. Mason 1928-7-3 4867 Mariposa head of Yosemite Creek grade Yosemite National Park, Yosemite Creek drainage (Tioga Road, Yosemite Creek drainage, Yosemite National Park) Comment
  JEPS825  Ipomopsis aggregata subsp. bridgesii H. L. Mason 1922-7-27 334 Mariposa hill s of Porcupine Flat Sierra Nevada, Yosemite National Park 2133 Comment
  LA205964  Myrica hartwegii Herbert L. Mason; 1936-7-11 11209 Mariposa Big Creek, a tributary of the South Fork of the Merced River, near Wawona 1402 Comment
  UC1039503  Galium bifolium Herbert L. Mason 1938-7-15 11957 Mariposa Tamarack Flat Yosemite National Park Comment
  UC1039510  Galium bolanderi H. L. Mason 1928-6-28 4863 Mariposa Wawona Comment
  UC1039990  Arnica dealbata Herbert L. Mason 1938-7-13 11951 Mariposa Wawona Point, Mariposa Grove Big Tree Sierra Nevada, Yosemite National Park 2133 Comment
  UC1056424  Calochortus nudus Herbert L. Mason 1936-7-12 11224 Mariposa Glacier Point road Peregoy Meadow 2255 Comment
  UC1056437  Phleum alpinum Herbert L. Mason 1936-8-6 11506 Mariposa Yosemite National Park Glacier Point road Peregoy Meadow; Yosemite National Park, Glacier Point road, Peregoy Meadow 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
  UC1056990  Linanthus harknessii Herbert L. Mason 1936-8-6 11508 Mariposa Peregoy Meadow, Glacier Point road Sierra Nevada, Yosemite National Park 2255 Comment
  UC1081556  Helenium bigelovii Herbert L. Mason 1936-7-12 11239 Mariposa Glacier Point road, Peregoy Meadow Sierra Nevada, Yosemite National Park, Peregoy Meadow 2255 Comment
  UC1093948  Lupinus stiversii Herbert L. Mason 1928-6-28 4860 Mariposa Wawona Comment
  UC1178844  Dodecatheon alpinum H. L. Mason 1922-7-24 332 Mariposa Porcupine Flat Sierra Nevada Mountains, Yosemite National Park Comment
  UC1191693  Dodecatheon jeffreyi Herbert L. Mason 1936-7-7 11151 Mariposa w Dark Hole (Research Reserve, Yosemite National Park); Sierra Nevada, Yosemite National Park, w of Dark Hole 2438 Comment
  UC1199860  Dodecatheon alpinum H. L. Mason 1922-9-2 355 Mariposa Snow Flat Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC1199861  Dodecatheon alpinum H. L. Mason 1923-8-25 354 Mariposa Snow Flat Sierra Nevada Mountains, Yosemite National Park Comment
  UC382615  Hazardia whitneyi var. whitneyi H. L. Mason 1923-9-18 765 Mariposa White Wolf Sierra Nevada, Yosemite National Park, White Wolf 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
  UC632808  Hesperochiron pumilus H. L. Mason 1936-7-12 11222 Mariposa Yosemite Nat'l Park, Peregoy Meadow, Glacier Point rd. 2255 Comment
  UC632846  Phacelia mutabilis H. L. Mason 1936-7-6 11148 Mariposa Hetch Hetchy Trail w Yosemite Creek; Yosemite National Park 2377 Comment
  UC632872  Erigeron breweri var. breweri H. L. Mason 1936-7-11 11201 Mariposa Wawona 1249 Comment
  UC673403  Dodecatheon subalpinum Herbert L. Mason 1928-7-3 4867 Mariposa head of Yosemite Creek grade Yosemite Creek drainage, Tioga Road (Tioga Road, Yosemite Creek drainage) Comment
  UC673421  Eleocharis bella Herbert L. Mason 1939-7-5 12108 Mariposa Peregoy Meadow, Glacier Point road Yosemite National Park 2255 Comment
  UC908150  Ipomopsis aggregata subsp. bridgesii H. L. Mason 1922-7-27 334 Mariposa hill s of Porcupine Flat Sierra Nevada, Yosemite National Park 2133 Comment
  UC908210  Gilia capitata subsp. pedemontana Charles Mason 1949-5-10 1288 a Mariposa along road 1 mi s Mormon Bar (between Mariposa and Raymond); s of Mormon Bar, btw Mariposa and Raymond 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
  CAS-BOT-BC177579  Astragalus bolanderi Herbert L. Mason 1936-7-9 11173 Mariposa Summit of ridge forming boundary between Tuolumne and Mariposa counties, south of White Wolf. Sierra Nevada, Yosemite National Park 2743 Comment
  CAS-BOT-BC295552  Agnorhiza bolanderi H. L. Mason 1936-3-21 11029 Mariposa Four miles north of Coulterville Comment
  CAS-BOT-BC87450  Streptanthus polygaloides H. L. Mason 1936-5-15 11118 Mariposa Summit of road between Coulterville and Bagby. 701 Comment
  SEINET10460617  Heterocodon rariflorum Mason Mason 11199 Mariposa WAWONA Comment
  SEINET10461220  Nemacladus interior Mason 1928-6-28 Mason 4866 Mariposa Wawona Comment
  SEINET190352  Dodecatheon subalpinum H. L. Mason 1928-7-3 4867 Mariposa Yosemite National Park; Yosemite Creek drainage, Tioga Road, head of Yosmite Creek grade. Comment
  UC1039991  Hypericum anagalloides Herbert L. Mason 1936-7-7 11158 Mariposa Hetch Hetchy Trail w. of Dark Hole (Research Reserve, Yosemite Nat'l Park); Sierra Nevada, Yosemite Nat'l Park, Research Reserve 2438 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
  UC1083200  Lupinus bicolor Herbert L. Mason 1938-4-17 11736 Mariposa ridge w Mormon Bar; Sierra Nevada foothills, w of Mormon Bar 548 Comment
  UC1083209  Sidalcea hartwegii Herbert L. Mason 1936-5-16 11124 A Mariposa Summit of road between Coulterville and Bagby Comment
  UC1093677  Ceanothus fresnensis Herbert L. Mason 1938-7-13 11950 Mariposa Wawona Road south of Chinquapin Comment
  UC1111600  Claytonia parviflora subsp. parviflora Herbert L. Mason 1936-3-21 11028 Mariposa 3 mi n Coulterville Comment
  UC632794  Castilleja foliolosa H. L. Mason 1936-3-21 11036 Mariposa 4 mi n Coulterville Comment
  UC632827  Collinsia sparsiflora var. collina Herbert L. Mason 1936-3-21 11026 Mariposa 3 mi n Coulterville Comment
  UC632843  Rigiopappus leptocladus H. L. Mason 1936-5-15 11113 Mariposa three mi above Coulterville Comment
  UC632845  Eriophyllum lanatum var. integrifolium H. L. Mason 1936-7-9 11177 Mariposa s White Wolf (e slope of hill forming bouindary between Tuolumne and Mariposa counties); Yosemite National Park 2590 Comment
  UC673578  Platanthera sparsiflora Herbert L. Mason 1922-7-3 305 Mariposa Big Tree Grove Sierra Nevada, Yosemite National Park 1524 Comment
  UCD55555  Achnatherum occidentale H. L. Mason 1938-7-25 11988 Mariposa Yosemite National Park. Slopes on Mahan Peak. Comment
  CAS-BOT-BC112401  Isolepis carinata Herbert L. Mason 1946-5-19 12783 Mendocino Cleone Lake, north of Fort Bragg Comment
  CAS-BOT-BC144024  Horkelia marinensis H. L. Mason 1930-8-1 5741 Mendocino Fort Bragg Comment
  CAS-BOT-BC225487  Gilia millefoliata Herbert L. Mason 1946-5-18 12775 Mendocino Sand dunes 6 miles north of Fort Bragg Comment
  CAS-BOT-BC225489  Gilia millefoliata Herbert L. Mason 1946-5-19 12784 Mendocino Cleone Lake, north of Fort Bragg Comment
  CAS-BOT-BC34194  Carex californica Herbert L. Mason 1946-5-18 12762 Mendocino East of Fort Bragg. Comment
  CAS-BOT-BC36078  Lithocarpus densiflorus var. densiflorus Herbert L. Mason 1934-9-3 s.n. Mendocino White Plains, three miles east of Mendocino City Comment
  JEPS19281  Collinsia corymbosa Herbert L. Mason 1946-5-18 12769 Mendocino sand dune 6 mi n Fort Bragg Comment
  JEPS19557  Myosotis discolor Herbert L. Mason 1946-5-19 12777 Mendocino Cleone Lake n. of Fort Bragg; Cleone Lake Comment
  NY49718  Pinus contorta var. contorta H. L. Mason 1934-9-3 8148 Mendocino Just north of the town of Point Arena Comment
  POM312829  Juncus bufonius var. bufonius H. L. Mason 1946-5-18 12765 Mendocino East of Fort Bragg. Comment
  RSA31092  Pinus contorta var. contorta H. L. Mason 1934-9-3 8146 Mendocino White Plains, 3 miles east of Mendocino City Comment
  UC1039523  Galium porrigens var. porrigens H. L. Mason 1929-8-24 5390 Mendocino Pudding Creek Slough Fort Bragg Comment
  UC1039591  Phoradendron villosum Herbert L. Mason 1926-1-1 2591 Mendocino summit Elk Mt. Comment
  UC1076279  Cupressus goveniana subsp. pygmaea Herbert L. Mason 1928-10-21 5009 Mendocino no of Fort Bragg; Pudding Creek Comment
  UC1076322  Arceuthobium littorum Herbert L. Mason June, 1930 5639 Mendocino Fort Bragg Comment
  UC1076544  Myosotis discolor Herbert L. Mason 1946-5-19 12777 Mendocino Cleone Lake n. of Fort Bragg; Cleone Lake Comment
  UC1083185  Lithocarpus densiflorus H. L. Mason 1928-10-21 5000 Mendocino 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
  UC1083333  Pinus contorta subsp. bolanderi Herbert L. Mason 1928-10-21 4996 Mendocino Fort Bragg Comment
  UC1083387  Pinus contorta subsp. bolanderi Herbert L. Mason 1928-8-25 4919 Mendocino Noyo Comment
  UC1093931  Heterotheca sessiliflora subsp. bolanderi Herbert L. Mason 1929-9-1 5405 Mendocino 3 mi n Fort Bragg Comment
  UC1099848  Potamogeton nodosus Herbert L. Mason 1946-5-18 12770 Mendocino 6 mi n of Fort Bragg Comment
  UC1099924  Sparganium emersum var. emersum Herbert L. Mason 1928-10-21 5003 Mendocino Pudding Creek; Fort Bragg Comment
  UC1100839  Isolepis carinata Herbert L. Mason 1946-5-19 12783 Mendocino n Fort Bragg (Cleone Lake); n of Fort Bragg, Cleone Lake Comment
  UC1110537  Agrostis microphylla Herbert L. Mason 1946-5-18 12763 Mendocino near Fort Bragg Comment
  UC1178974  Maianthemum dilatatum Herbert L. Mason 1946-5-19 12782 Mendocino n. Fort Bragg (Cleone Lake); Cleone Lake Comment
  UC1178996  Phacelia insularis var. continentis Herbert L. Mason 1940-5-22 12301 Mendocino headland n Pudding Creek Slough (near Fort Bragg) Comment
  UC1179014  Cupressus goveniana subsp. pygmaea Herbert L. Mason 1928-10-21 5001 Mendocino Fort Bragg Comment
  UC1191109  Tsuga heterophylla Herbert L. Mason 1928-8-25 4927 Mendocino mesa 1 mi e of mouth of Noyo River; Noyo Comment
  UC1191675  Menyanthes trifoliata Herbert L. Mason 1946-5-18 12771 Mendocino 6 mi n of Fort Bragg Comment
  UC555507  Horkelia marinensis H. L. Mason August 1930 5741 Mendocino Fort Bragg Comment
  UC566637  Senecio jacobaea H. L. Mason 1928-8-26 4934 Mendocino Pudding Creek slough Pudding Creek Comment
  UC570763  Callitriche marginata H. L. Mason Jun 1930 5641 Mendocino 3 miles north of Fort Bragg Comment
  UC571051  Ledum glandulosum H. L. Mason 1928-8-25 4924 Mendocino 1 mi e of mouth of Noyo River Comment
  UC571077  Arctostaphylos nummularia H. L. Mason 1928-10-21 4998 Mendocino Fort Bragg Comment
  UC581499  Viola ocellata H. L. Mason 1929-5-9 5278 Mendocino 5 mi w of Laytonville Comment
  UC634784  Perideridia kelloggii H. L. Mason August 1930 5734 Mendocino road from Willits to Fort Bragg Comment
  UC634814  Garrya elliptica H. L. Mason 1932-8-26 7149 Mendocino 1.5 mi n Albion Comment
  UC634822  Drosera rotundifolia H. L. Mason June 1930 5638 Mendocino Fort Bragg Comment
  UC635004  Eriogonum latifolium H. L. Mason 1929-9-1 5414 Mendocino 3 mi n Fort Bragg Comment
  UC635012  Eriogonum latifolium H. L. Mason 1932-8-27 7169 Mendocino Point Arena Comment
  UC635099  Ranunculus occidentalis H. L. Mason 1930-6-1 5614 Mendocino Cloverdale to Fort Bragg (via river); Navarro River Comment
  UC672059  Xerophyllum tenax Herbert L. Mason June 1930 5634 Mendocino Fort Bragg Comment
  UC672060  Veratrum fimbriatum Herbert L. Mason 1928-8-25 4929 Mendocino mesa 1 mi e mouth of Noyo River; Noyo Comment
  UC672429  Phacelia bolanderi Herbert L. Mason 1928-8-26 4935 Mendocino 1 mi above Fort Bragg; Pudding Creek Comment
  UC672602  Sequoia sempervirens H. L. Mason 1928-8-26 4941 Mendocino slough of Pudding Creek Pudding Creek Comment
  UC672610  Myrica californica Herbert L. Mason 1928-8-25 4926 Mendocino 1 mi. e. of mouth of Noyo R. Noyo Comment
  UC672612  Myrica californica Herbert L. Mason 1928-10-21 4997 Mendocino Fort Bragg Comment
  UC673406  Lilium maritimum Herbert L. Mason Jun 1930 5633 Mendocino Fort Bragg Comment
  UC673425  Triphysaria eriantha subsp. rosea H. L. Mason June, 1930 5617 Mendocino Cloverdale to Fort Bragg via Navarro River Comment
  UC908598  Linanthus bolanderi Herbert L. Mason 1929-5-9 5276 Mendocino 5 mi nw Laytonville Comment
  UC908973  Gilia millefoliata Herbert L. Mason 1946-5-18 12775 Mendocino sand dunes 6 mi n Fort Bragg (in edge of small lake); n of Fort Bragg Comment
  UC912451  Sambucus racemosa var. racemosa Herbert L. Mason June, 1930 5628 Mendocino Fort Bragg Comment
  UC912609  Madia sativa Herbert L. Mason 1932-8-26 7142 Mendocino Navarro River 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
  NY49515  Pinus contorta H. L. Mason 1934-9-3 8146 Mendocino 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
  POM312989  Potamogeton natans H. L. Mason 1946-5-18 12770 Mendocino Sand dune, six miles north of Fort Bragg. Comment
  SEINET10834044  Cupressus pygmaea Herbert L. Mason 1934-9-3 Mason 8147 Mendocino White plains three miles east of Mendocino City. Comment
  UC1028681  Orobanche uniflora subsp. occidentalis Herbert L. Mason June 1930 5612 Mendocino Between Cloverdale and Yorkville Post Office. Comment
  UC1056960  Isolepis carinata Herbert L. Mason 1940-5-22 12297 Mendocino s Albion (coastal bluff); s of Albion Comment
  UCD138250  Potamogeton nodosus Herbert L. Mason 1946-5-18 12770 Mendocino six miles north of Fort Bragg, 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-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-BC113609  Eleocharis acicularis Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-7-9 63 Merced Los Banos Wildlife Refuge, 1.5 mi N of Los Banos. Comment
  CAS-BOT-BC113826  Cyperus niger var. capitatus Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-8-12 8331 Merced Gustine Gun Club, 3 mi E of Gustine. Comment
  CAS-BOT-BC400241  Anemopsis californica Herbert L. Mason; S. Galen Smith 1948-8-9 8296 Merced About 12 miles west of Los Banos Comment
  CHSC40737  Leptosiphon grandiflorus H. L. Mason 1940-5-5 12275 Merced Los Banos Creek. Comment
  JEPS21899  Cordylanthus mollis subsp. hispidus Herbert L. Mason and Malcolm A. Nobs 1948-10-2 697 Merced 6 mi s Los Banos (Santa Fe grade); San Joaquin Valley Comment
  POM312934  Anemopsis californica H. L. Mason, S. Galen Smith 1948-8-9 8296 Merced About 12 miles W of Los Banos. Comment
  UC1099798  Sparganium erectum subsp. stoloniferum Herbert L. Mason and S. Galen Smith 1948-7-29 8240 Merced 5 mi e Los Banos (Turner Island road, just s of salt slough) Comment
Read comments
Sep 25 2008
  UC1099816  Potamogeton pectinatus Herbert L. Mason, S. Galen Smith 1948-7-27 8219 Merced 1/4 mi s of Ingomar Comment
  UC1099890  Potamogeton crispus Herbert L. Mason, S. Galen Smith 1948-8-10 8308 Merced just w South Dos Palos Comment
  UC1099896  Potamogeton pusillus var. pusillus Herbert L. Mason, S. Galen Smith 1948-8-10 8309 Merced just w of South Dos Palos Comment
  UC1099965  Zannichellia palustris Herbert L. Mason and Malcolm A. Nobs 1948-7-14 113 Merced pond ca. 3 mi. n. Los Banos (along Old Santa Fe grade); Old Santa Fe grade Comment
  UC1099997  Najas guadalupensis Herbert L. Mason, S. Galen Smith 1948-8-10 8312 Merced w of South Dos Palos (border of Lyon and Hoag Ranch) Comment
  UC1100034  Potamogeton pusillus var. pusillus Herbert L. Mason 1948-6-29 13584 Merced 2 mi n Volta; San Joaquin Valley Comment
  UC1100170  Lilaea scilloides Herbert L. Mason 1948-6-29 13586 Merced 2 mi n Volta Comment
  UC1100245  Eragrostis hypnoides Herbert L. Mason and S. Galen Smith 1948-7-29 8245 Merced at end of Turner Island road e Los Banos Comment
  UC1100588  Eleocharis flavescens var. flavescens Herbert L. Mason, S. Galen Smith 1948-1 8376 Merced bridge below Snelling (San Joaquin River) Comment
  UC1100689  Fimbristylis vahlii Herbert L. Mason and S. Galen Smith 1948-8-19 8378 Merced bridge below Snelling; San Joaquin River Comment
  UC1101033  Juncus dubius Herbert L. Mason and S. Galen Smith 1948-8-19 8384 Merced 1 mi w Snelling Comment
  UC1101101  Juncus xiphioides Herbert L. Mason and S. Galen Smith 1948-8-19 8374 Merced bridge below Snelling; San Joaquin River Comment
  UC1101275  Lemna minuscula Herbert L. Mason, S. Galen Smith 1948-8-11 8326 Merced 5 mi w of Merced (Black Rascal Creek); Black Rascal Creek Comment
  UC1101340  Myosurus minimus Herbert L. Mason 1952-5-18 14294 Merced Santa Fe Grade e of Los Banos; Santa Fe Grade Comment
  UC1101492  Myriophyllum hippuroides Herbert L. Mason and S. Galen Smith 1948-7-27 8225 Merced W of salt slough, N of Los Banos, on Delta Road. Comment
  UC1101569  Paspalum dilatatum Herbert L. Mason 1948-8-19 8373 Merced San Joaquin River bridge below Snelling; San Joaquin River 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
  UC1191444  Ranunculus sceleratus Herbert L. Mason 1948-6-29 13578 Merced 5 mi n Volta; San Joaquin Valley Comment
  UC1191626  Navarretia prostrata Herbert L. Mason 1952-5-18 14292 Merced e of Los Banos (Santa Fe grade); San Joaquin Valley Comment
  UC1191770  Nicotiana attenuata Herbert L. Mason and S. Galen Smith 1948-8-19 8364 Merced about 2 mi ne Merced (on Snelling highway) Comment
  UC1191780  Solanum elaeagnifolium Herbert L. Mason, S. Galen Smith 1948-7-30 8256 Merced Ingomar 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
  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
  UC775190  Woodwardia fimbriata Herbert L. Mason 1940-5-5 12279 Merced n slope of Twin Peaks (N Fork Los Banos Creek); Inner S Coast Ranges Comment
  UC775192  Solanum umbelliferum Herbert L. Mason 1940-5-5 12276 Merced North Fork Los Banos Creek, n slope Twin Peaks North Fork Los Banos Creek; Inner South Coast Ranges, Twin Peaks, North Fork Los Banos C Comment
  UC935714  Sagittaria longiloba Herbert L. Mason and S. Galen Smith 1948-8-11 8321 Merced s of junction of Merced and San Joaquin River (Crane Ranch); San Joaquin Valley, s of jct Merced and San Joaquin Rivers 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
  CAS-BOT-BC176593  Atriplex serenana var. serenana Herbert L. Mason; S. Galen Smith 1948-7-29 8232 Merced North Mercy Springs road, about 4 miles north of Los Banos 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-BC451524  Elodea canadensis Herbert L. Mason 1948-6-29 13589 Merced Delta road, 3 miles east of Los Banos [Banos] Comment
  POM312324  Bidens frondosa H. L. Mason, S. Galen Smith 1948-8-12 8333 Merced About 5 miles east of Gustine Comment
  POM312576  Cordylanthus mollis subsp. hispidus H. L. Mason, S. Galen Smith 1948-8-9 8306 Merced Along old Santa Fe Grade, 2 miles north of Dos Palos Comment
  POM312615  Navarretia prostrata H. L. Mason 1952-5-18 14292 Merced Santa Fe Grade east of Los Banos, San Joaquin Valley Comment
  POM313107  Cyperus squarrosus H. L. Mason, S. Galen Smith 1948-7-29 8247 Merced Salt slough, at end of Turner Island road, east of Los Banos Comment
  RSA435686  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-31 1247 Merced 6 miles southeast of LeGrand along the road to Raymond. Comment
  SEINET10546230  Asclepias vestita Herbert L. Mason 1940-5-5 Mason 12274 Merced Twin Peaks, Los Banos Creek, San Carlos Range 610 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
  UCD104503  Acmispon wrangelianus Herbert L. Mason 1940-5-3 12254 Merced Ortigalita Canyon, two miles northeast of Ortigalita Peak, South Coast Ranges. 304 Comment
  UCD123802  Chloropyron molle subsp. hispidum Herbert L. Mason; S. Galen Smith 1948-8-9 8306 Merced along Old Santa Fe Grade, 2 miles north of Dos Palos. Comment
  UCD138159  Najas guadalupensis subsp. 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
  UCD48614  Navarretia prostrata Herbert L. Mason 1952-5-18 14292 Merced Santa Fe grade east of Los Banos, San Joaquin Valley, Merced County. Comment
  UCD88708  Panicum acuminatum var. fasciculatum Herbert L. Mason; S. Galen Smith 1948-8-19 8372 Merced Merced River, bridge below Snelling. 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-BC15172  Symphyotrichum spathulatum var. spathulatum Herbert Louis Mason 1947-8-9 13480 Modoc East side of Fairchild Swamp, N of Alturas. Comment
  CAS-BOT-BC190973  Epilobium densiflorum Herbert Louis Mason 1947-8-11 13495 Modoc Hwy 81, W margin of Lower Lake, near Modoc County boundary. Comment
  CAS-BOT-BC214802  Potentilla rivalis Herbert Louis Mason 1947-8-13 13518 Modoc NE side of F reservoir, N of Canby. Comment
  CAS-BOT-BC229890  Gratiola neglecta Herbert Louis Mason; Verne Grant 1947-7-12 13393 Modoc Jones' Lane, off Hwy 395, several miles S of Alturas. Comment
  CAS-BOT-BC238351  Limosella aquatica Herbert L. Mason; Verne Grant 1947-7-12 13418 Modoc Along railroad track, Pit River Valley, south of Alturas Comment
  CAS-BOT-BC238449  Alisma gramineum Herbert L. Mason 1955-8-13 14653 C Modoc South end of Goose Lake. Comment
  CAS-BOT-BC245129  Schoenoplectus americanus Herbert Louis Mason 1947-8-11 13491 Modoc Hwy 81, W margin of Lower Lake, near boundary with Lassen County. 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-BC30209  Azolla mexicana Herbert Louis Mason 1947-8-12 13503 Modoc Junction of North and South Forks of Pit River, Alturas. Comment
  CAS-BOT-BC50386  Psilocarphus brevissimus var. brevissimus Herbert Louis Mason; Verne Grant 1947-7-10 13328 Modoc Dorris Reservoir, 2 miles E of Alturas Comment
  CAS-BOT-BC58728  Plagiobothrys mollis var. mollis Herbert Louis Mason; Verne Grant 1947-7-12 13395 Modoc By Jones' Lane, off Hwy 395, several miles S of Alturas. Comment
  CAS-BOT-BC58758  Plagiobothrys scouleri Herbert Louis Mason; Verne Grant 1947-7-12 13415 Modoc Pit River Valley, S of Alturas. Comment
  CAS-BOT-BC95712  Euphorbia serpillifolia Herbert Louis Mason; Verne Grant 1947-7-10 13325 Modoc Dorris Reservoir. Comment
  JEPS21904  Gratiola neglecta Herbert L. Mason and Verne Grant 1947-7-11 13374 Modoc irrigation ditch near w side road s Alturas (South Fork of Pit River); South Fork of Pit River Comment
  POM312332  Solidago spectabilis H. L. Mason 1947-8-9 13459 Modoc Ingalls Swamp, north of Big Sage Reservoir, northwest of Alturas. Comment
  POM312507  Aster frondosus H. L. Mason 1947-8-11 13487 Modoc Reservoir, Kelley Hot Springs, on Alturas-Conby Highway Comment
  POM312570  Plagiobothrys scouleri var. cusickii H. L. Mason, Verne Grant 1947-7-12 13415 Modoc Near south end of West Side Rd. along railroad tracks, Pit River Valley, south of Alturas Comment
  POM312624  Plagiobothrys mollis H. L. Mason 1947-8-9 13475 Modoc East side of Fairchild Swamp, north of Alturas Comment
  POM312885  Potentilla rivalis H. L. Mason 1947-8-13 13518 Modoc Northeast side of 'F' reservoir, north of Canby Comment
  POM313125  Carex atherodes H. L. Mason, Verne Grant 1947-7-12 13424 Modoc Near south end of West Side Rd. along railroad tracks, Pit River Valley, south of Alturas Comment
  RSA312310  Chamaesyce serpillifolia H. L. Mason, Verne Grant, C. T. Mason 1947-7-10 13325 Modoc Dorris Reservoir, 2 miles east of Alturas. Comment
  SD47967  Sedum stenopetalum subsp. stenopetalum Herbert L. Mason 1957-7-6 14719 a Modoc Mill Creek, Warner Mountains. Comment
  UC1051443  Potamogeton striatus Herbert L. Mason 1955-8-14 14648 Modoc s. end Goose Lake Comment
  UC1060654  Floerkea proserpinacoides Herbert L. Mason 1957-7-6 14717 Modoc Warner Mountains, Mill Creek Mill Creek; Warner Mountains, Mill Creek Comment
  UC1093649  Phoenicaulis cheiranthoides Herbert L. Mason 1957-7-6 14720 Modoc Mill Creek; Warner Mountains, Mill Creek Comment
  UC1099978  Zannichellia palustris Herbert L. Mason and Verne Grant 1947-7-12 13427 Modoc n. Likely (s. loop of w. side rd.) Comment
  UC1100225  Alopecurus geniculatus Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith 1949-5-29 764 Modoc 2 mi. e. Adin Comment
  UC1100380  Poa secunda subsp. juncifolia Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith 1949-5-29 765 Modoc 2 mi e Adin Comment
  UC1100439  Carex atherodes Herbert L. Mason, Verne Grant 1947-7-11 13376 Modoc s Alturas (irrigation ditch near west side road); South Fork of Pit River Comment
  UC1100474  Carex praegracilis Herbert L. Mason, Verne Grant 1947-8-13 13535 Modoc n Canby (ne side of F Reservoir) Comment
  UC1100496  Carex nebrascensis Herbert L. Mason, Verne Grant 1947-7-10 13354 Modoc 1/4 mi w Dorris Reservoir (2 mi e of Alturas) Comment
  UC1100592  Carex pellita Herbert L. Mason, Verne Grant 1947-7-10 13354 a Modoc 1/4 mi w Dorris Reservoir (2 mi e of Alturas) Comment
  UC1100602  Eleocharis engelmannii var. detonsa Herbert L. Mason 1947-8-13 13525 Modoc N of Canby, NE side of F reservoir Comment
  UC1100768  Scirpus acutus var. occidentalis Herbert L. Mason, Verne Grant 1947-7-12 13422 Modoc s Alturas (Pit River Valley, irrigation ditch near s end of w side road along railroad tracks); Pit River Valley, s of Alturas Comment
  UC1100955  Juncus mexicanus Herbert L. Mason 1947-8-13 13536 Modoc n of Canby (ne side of F reservoir) Comment
  UC1100957  Juncus balticus Herbert L. Mason and Verne Grant 1947-7-10 13356 Modoc 0.25 mi w Dorris Reservoir (2 mi e of Alturas) Comment
  UC1101046  Juncus bufonius var. congestus Herbert L. Mason 1947-8-13 13532 Modoc n of Canby (ne side of F reservoir) Comment
  UC1101209  Rumex salicifolius var. lacustris Herbert L. Mason and Verne Grant 1947-7-10 13336 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1101510  Erigeron divergens Herbert L. Mason and Verne Grant 1947-7-10 13340 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1101516  Callitriche verna Herbert L. Mason and Verne Grant 1947-7-12 13428 Modoc n of Likely (s loop of w side of road) Comment
  UC1101528  Callitriche hermaphroditica Herbert L. Mason and Verne Grant 1947-7-10 13348 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1178897  Navarretia breweri Herbert L. Mason 1947-7-8 13306 Modoc Cedar Pass, summit of Warner Range Warner Range 1920 Comment
  UC1178969  Navarretia intertexta Herbert L. Mason 1947-7-13 13444 Modoc s of Goose Lake (Highway 395); Joseph Creek Comment
  UC1178999  Nemophila pedunculata Herbert L. Mason 1947-7-8 13313 Modoc Cedar Pass , Cedar Pass (summit Warner Range) 1920 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
  UC1191590  Mentzelia dispersa Herbert L. Mason, Verne Grant 1947-7-9 13317 Modoc Summit of Warner Range, Cedar Pass 1920 Comment
  UC1191621  Epilobium campestre Herbert L. Mason 1947-8-13 13519 Modoc n Canby (ne side of F reservoir); F 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
  UC1191734  Epilobium brachycarpum Herbert L. Mason and Verne Grant 1947-7-10 13334 Modoc 2 mi e Alturas; Dorris Reservoir Comment
  UC1191852  Symphoricarpos rotundifolius var. rotundifolius Herbert L. Mason 1948-7-18 13619 Modoc Cedar Pass; Warner Mountains Comment
  UC1192061 Image available Verbena hastata Herbert L. Mason 1947-8-11 13502 Modoc n Modoc-Lassen County line (on Hwy 81) Comment
  UC1192069  Symphyotrichum bracteolatum Herbert L. Mason 1947-8-11 13494 Modoc on Highway 81, w margin of Lower Lake, near boundary betwn Lassen and Modoc Co. Lower Lake Comment
  UC1192074  Symphyotrichum frondosum Herbert L. Mason 1947-8-8 13460 Modoc southwest margin of Big Sage Reservoir, nw of Alturas Comment
  UC1192096  Psilocarphus brevissimus var. brevissimus Herbert L. Mason 1947-8-12 13513 Modoc outside Alturas (junction of North and South Forks of Pit River); Pit River Comment
  UC1192143  Iva axillaris subsp. robustior Herbert L. Mason and Verne Grant 1947-7-10 13344 Modoc 2 mi e of Alturas; Dorris Reservoir Comment
  UC1192190  Bidens cernua Herbert L. Mason and Verne Grant 1947-7-12 13431 Modoc n of Likely (s loop of w side road) Comment
  UC1192250  Solidago spectabilis Herbert L. Mason 1947-8-9 13459 Modoc Ingalls Swanp, north of Big Sage Reservoir, Northwest of Alturas Comment
  UC1192251  Solidago spectabilis Herbert L. Mason 1947-8-11 13497 Modoc On Highway 81, west margin of Lower Lake, near boundary, between Lassen and Modoc counties. Comment
  UC1212251  Hesperolinon micranthum Herbert L. Mason 1946-7-13 13448 Modoc w end of pass near Goose Lake (on road to Ft. Bidwell); Fandango Pass 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
  UCD120115  Cryptantha Herbert L. Mason; Verne Grant 1947-7-9 13316 Modoc Cedar Pass, summit of Warner Range. 1920 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
  UCD124962  Lycopus asper Herbert L. Mason 1947-8-11 13490 Modoc on Highway 81, west margin of Lower Lake, near boundary between Lassen and Modoc counties. Comment
  UCD125312  Pogogyne floribunda Herbert L. Mason 1947-8-9 13474 Modoc on east side of Fairchild Swamp, north of Alturas. Comment
  UCD131476  Ericameria nauseosa var. oreophila Herbert L. Mason; Verne Grant 1947-7-12 13409 Modoc west side of the South Fork of Pit River Valley, southwest of Alturas. Comment
  UCD135905  Solidago confinis Herbert L. Mason 1947-8-9 13459 Modoc Ingalls Swamp, north of Big Sage Reservoir, northwest of Alturas. 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
  UCD85760  Hordeum jubatum Herbert L. Mason 1947-8-9 13478 Modoc E side of Fairchild Swamp, N of Alturas. 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-BC245113  Amphiscirpus nevadensis Herbert Louis Mason 1947-8-15 13543 Modoc Mouth of Crane Creek on Willow Ranch, E side of Goose Lake. Comment
  CAS-BOT-BC245153  Carex praegracilis Herbert Louis Mason; Verne Grant 1947-7-12 13439 Modoc Corporation Ranch Headquarters, N of Likely. Comment
  CAS-BOT-BC58759  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-BC58764  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
  POM312514  Psilocarphus brevissimus H. L. Mason 1947-8-12 13513 Modoc Junction of North and South forks of Pitt River outside of Alturas. Comment
  POM312571  Plagiobothrys stipitatus var. micranthus H. L. Mason, Verne Grant 1947-7-12 13410 Modoc West side of Pit River Valley S of Alturas. Comment
  POM312849  Scirpus nevadensis H. L. Mason, Verne Grant 1947-7-12 13436 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
  POM313207  Muhlenbergia asperifolia H. L. Mason 1947-8-15 13542 Modoc Mouth of Crane Creek on Willow Ranch, east side of Goose Lake. Comment
Read comments
Aug 21 2013
  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
  SACT001578  Muhlenbergia asperifolia Herbert Mason 1947-8-15 Modoc Mouth of creek on Willow Ranch, east of Goose Lake. Comment
Read comments
Aug 21 2013
  SEINET10460821  Porterella carnosula Mason 1947-8-12 Mason 13502 -a Modoc Comment
  SEINET8055413 Image available Carex nebrascensis H. L. Mason, V. Grant 1947-7-12 13435 Modoc Corporation Ranch Headquarters, N of Likely Comment
  UC1060642  Polygonum Herbert L. Mason 1955-8-14 14655 Modoc n of Rim Rock Valley Reservoir (Frift Fence Reservoir); Frift Fence Reservoir Comment
  UC1093653  Allophyllum integrifolium Herbert L. Mason 1957-7-6 14719 Modoc Warner Mts., Mill Creek Comment
  UC1099957  Triglochin maritima Herbert L. Mason, Verne Grant 1947-7-12 13438 Modoc n Likely (Corporation Ranch Headquarters); , n of Likely Comment
  UC1100607  Eleocharis coloradoensis Herbert L. Mason 1947-8-8 13463 Modoc NW of Alturas (SW margin of Big Sage Reservoir) Comment
  UC1100874  Scirpus americanus Herbert L. Mason, Verne Grant 1947-7-11 13364 Modoc 5 mi s Alturas (irrigation ditch on Highway 395); s of Alturas Comment
  UC1101550  Elatine triandra Herbert L. Mason 1947-8-8 13465 Modoc nw Alturas (sw margin of Big Sage Reservoir) Comment
  UC1178895  Olsynium douglasii var. douglasii Herbert L. Mason 1949-4-16 13993 Modoc mesa e Alturas Comment
  UC1184073  Viola beckwithii Herbert L. Mason 1961-4-16 13996 Modoc Mesa e of Alturas Comment
  UC1191213  Phlox douglasii subsp. rigida Herbert L. Mason 1949-4-16 13994 Modoc 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
  UC1191613  Epilobium pallidum Herbert L. Mason and Verne Grant 1947-7-13 13441 Modoc on Hwy 395 n Davis Creek (e side of lake, near roadside); Goose Lake, Joseph Creek 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
  UC1192131  Ericameria nauseosa var. oreophila Herbert L. Mason and Verne Grant 1947-7-12 13409 Modoc sw of Alturas (w side of the South Fork of Pit River Valley; Vernal pool); South Fork of Pit River Valley Comment
  UC1192291  Chamaesyce serpyllifolia Herbert L. Mason, Verne Grant 1947-7-10 13325 Modoc 2 mi E of Alturas (Dorris Reservoir) Comment
  UC1199811  Navarretia leucocephala subsp. minima Herbert L. Mason 1957-6-21 14705 Modoc w side Said Valley Comment
  UCD126204  Convolvulus arvensis Herbert L. Mason; Verne Grant 1947-7-10 13338 Modoc Dorris Reservoir, 2 miles east of Alturas. Comment
  UCD132417  Gnaphalium palustre Herbert L. Mason; Verne Grant 1947-7-12 13425 Modoc near south end of west side road, along railroad tracks, Pit River Valley, south of Alturas. Comment
  UCD134271  Madia glomerata Herbert L. Mason 1947-8-9 13483 Modoc on east side of Fairchild Swamp, north of Alturas. Comment
  UCD137997  Alisma triviale Herbert L. Mason 1955-8-13 14653 C Modoc southwest side of Goose Lake. Comment
  UCD138008  Sagittaria cuneata Herbert L. Mason 1947-8-12 13506 Modoc Junction of North and South forks of Pit River, Alturas. Comment
  UCD138169  Triglochin concinna var. debilis Herbert L. Mason; Verne Grant 1947-7-12 13436 Modoc Corporation Ranch Headquarters, north of Likely. Comment
  UCD138296  Potamogeton richardsonii Herbert L. Mason; Verne Grant 1947-7-11 13380 Modoc on road from Likely to Jess Valley, ca. 1 mile east 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-BC267155  Potamogeton foliosus Herbert L. Mason 1948-9-4 13634 Mono Rush Creek, Mono Lake Comment
  CAS-BOT-BC379366  Ranunculus aquatilis var. diffusus Herbert L. Mason 1948-9-4 13633 Mono Rush Creek, Mono Lake Comment
  CAS-BOT-BC452171  Potamogeton gramineus Herbert L. Mason 1948-9-5 13671 Mono Junction of Highways 108 and 395 Comment
  CAS-BOT-BC59738  Cassiope mertensiana H. L. Mason 1928-7-5 4877 Mono Tioga Mines. Comment
  CAS-BOT-BC70629  Cystopteris fragilis H. L. Mason 1936-7-29 11439 Mono Conness Cirque near Saddlebag Lake, Tioga Pass region, Sierra Nevada Comment
  CAS-BOT-BC78271  Pinus albicaulis Herbert L. Mason 1936-8-6 11519 Mono between Saddlebag Lake and Conness Glacier 3200 Comment
  SACT000120  Agrostis alba Herbert Mason 1948-9-4 Mono Rsuh Creek. Mono Lake. Comment
  SEINET3096781 Image available Arnica nevadensis H. L. Mason 1936-7-31 11469 Mono Tioga Crest near Saddlebag Lake. Sierra Nevada. 3290 Comment
  UC1025285  Draba densifolia H. L. Mason 1936-7-28 11406 B Mono Dana Plateau Sierra Nevada, Dana Plateau 3657 Comment
  UC1081528  Hackelia micrantha Herbert L. Mason 1936-7-29 11443 Mono w of Saddlebag Lake (Cirque below Conness Glacier); Sierra Nevada, Yosemite National Park 3200 Comment
  UC1081531  Eucephalus breweri Herbert L. Mason 1936-7-29 11432 Mono n side of, (Conness Glacier) Mount Conness 3657 Comment
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Mar 5 2007
  UC1081539  Mimulus lewisii Herbert L. Mason 1936-8-1 11484 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1081550  Dieteria canescens var. canescens Herbert L. Mason 1936-8-1 11483 Mono Leevining Canyon Sierra Nevada, Yosemite National Park Comment
  UC1083118  Polygonum shastense Herbert L. Mason 1936-7-29 11438 Mono cirque below Conness Glacier (w of Saddlebag Lake) 3200 Comment
  UC1083120  Prunus andersonii Herbert L. Mason 1936-8-1 11501 Mono 3 mi. n. Mono Lake; Sierra Nevada, Yosemite Nat'l Park Comment
  UC1100214  Beckmannia syzigachne Herbert L. Mason 1948-9-4 13669 b 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
  UC1100803  Scirpus pungens Herbert L. Mason 1948-9-4 13668 Mono Rush Creek , Rush Creek (Mono Lake) Comment
  UC1100952  Juncus mexicanus Herbert L. Mason 1948-9-4 13657 Mono Rush Creek Mono Lake Comment
  UC1101432  Limosella acaulis Herbert L. Mason 1945-9-7 12691 Mono margin of pond below Tioga Lake; Sierra Nevada, margin of pond below Tioga Lake Comment
  UC1101601  Muhlenbergia asperifolia Herbert L. Mason 1948-9-4 13654 Mono Rush Creek Mono Lake Comment
  UC1108812  Melica bulbosa Herbert L. Mason 1936-7-31 11471 Mono e of Saddlebag Lake (Tioga Crest); Tioga Crest Comment
  UC1110524  Poa wheeleri Herbert L. Mason 1936-7-23 11314 Mono slopes se of summit Mt Conness 3505 Comment
  UC1110535  Festuca brachyphylla subsp. breviculmis Herbert L. Mason 1936-7-23 11293 Mono slopes se Mt. Conness summit; Mt. Conness 3505 Comment
  UC1152954  Bromus tectorum Herbert L. Mason 1963-7-4 15221 Mono Paoha Island, Mono Lake Mono Lake; Paoha Island, Mono Lake Comment
  UC1191140  Pinus Herbert L. Mason 1953-7-21 14565 Mono e of Campito Mountains; White Mountains 2895 Comment
  UC1191141  Pinus longaeva Herbert L. Mason 1953-7-21 14564 Mono e of Campito Mountain; White Mountains 2895 Comment
  UC1275782  Gilia lottiae Herbert L. Mason 1963-6-24 15219 Mono Paoha Island Mono Lake, Paoha Island Comment
  UC1275793  Chylismia claviformis subsp. integrior Herbert L. Mason 1963-6-24 15212 Mono Paoha Island Mono Lake Comment
  UC559956  Boechera paupercula H. L. Mason 1936-7-28 11401 B Mono Dana Plateau Sierra Nevada 3657 Comment
  UC571055  Kalmia polifolia subsp. microphylla H. L. Mason 1928-7-5 4874 Mono Tioga Mines Comment
  UC642683  Calyptridium umbellatum H. L. Mason 1936-7-31 11463 Mono e of Saddlebag Lake (Tioga Crest); Sierra Nevada, Tioga Crest 3474 Comment
  UC642899  Boechera depauperata H. L. Mason 1936-7-29 11426 Mono e base Mount Conness; Sierra Nevada, Conness Glacier 3505 Comment
  UC642908  Ranunculus eschscholtzii var. oxynotus H. L. Mason 1936-7-31 11473 Mono e Saddlebag Lake; Sierra Nevada, Tioga Crest 3474 Comment
  UC712194  Arnica nevadensis Herbert L. Mason 1936-7-31 11469 Mono near Saddlebag Lake; Sierra Nevada, Tioga Crest 3291 Comment
  UC714404  Astragalus kentrophyta var. danaus Herbert L. Mason 1936-7-31 11468 Mono Tioga Crest e Saddlebag Lake (Tioga Pass region); Sierra Nevada, Tioga Pass Region, e of Saddlebag Lake 3474 Comment
  UC936169  Minuartia nuttallii subsp. gracilis H. L. Mason 1936-7-28 11422 Mono Mount Dana Plateau Comment
  UC936210  Cerastium beeringianum var. capillare H. L. Mason 1936-7-28 11428 Mono Mt. Dana Plateau Comment
  UCD120976  Tiquilia nuttallii Herbert L. Mason 1948-9-5 13680 Mono Mono craters. Comment
  UCD88313  Melica stricta H. L. Mason 1936-8-1 11492 Mono Leevining Canyon, east of Tioga Pass. Comment
  CAS-BOT-BC59739  Cassiope mertensiana Herbert L. Mason 1936-7-28 11400 Mono Dana Plateau, vocinity of Mount Dana. 3596 Comment
  POM312964  Sparganium angustifolium H. L. Mason 1945-9-7 12689 Mono Pond below Tioga Lake. Comment
  POM312994  Potamogeton gramineus H. L. Mason 1948-9-5 13671 Mono Junction of Highway 108 and 395. Comment
  SEINET7368216 Image available Pinus albicaulis Herbert L. Mason 1936-1 11519 Mono hills between Saddlebag Lake and Conness Glacier. Sierra Nevada 3200 Comment
  UC1275798  Phacelia bicolor var. bicolor Herbert L. Mason 1963-6-12 15207 Mono Danburg Beach Mono Lake Comment
  UC642877  Anelsonia eurycarpa H. L. Mason 1936-7-30 11450 Mono Excelsior Mountain; Sierra Nevada, Excelsior Mountain 3505 Comment
  UC712311  Astragalus purshii var. lectulus Herbert L. Mason 1936-7-28 11413 Mono vicinity Mount Dana (Dana Plateau); vicinity Mount Dana, Dana Plateau 3535 Comment
  CAS-BOT-BC109005  Mucronea californica H. L. Mason 1923-6-23 553 Monterey Carmel River, ten miles above Carmel. Comment
  CAS-BOT-BC171992  Clarkia epilobioides H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte, Carmel River Comment
  CAS-BOT-BC191220  Chorizanthe douglasii H. L. Mason 1923-6-23 542 Monterey Carmel River, ten miles above Carmel Comment
  CAS-BOT-BC19283  Carex barbarae H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte. Carmel River. Comment
  CAS-BOT-BC29549  Agoseris apargioides Herbert L. Mason; Edward Lee 1935-4-20 9110 Monterey Point Lobos State Park Comment
  CAS-BOT-BC51548  Ceanothus oliganthus var. sorediatus H. L. Mason 1921-5-7 s.n. Monterey Sand flat, Carmel River, Rancho del Monte Comment
  JEPS19709  Lessingia pectinata var. tenuipes Herbert L. Mason 1930-10-25 5780 Monterey between Jolon and Santa Lucia Ranger Station (along the San Antonio River); foothills of the Santa Lucia Mountains, along the San Antoni Comment
  JEPS36640  Malacothrix saxatilis var. arachnoidea Herbert L. Mason 1929-3-1 5011 Monterey 4 mi above Mission; Carmel River Comment
  POM256496  Plantago erecta H. L. Mason, Edward Lee 1935-3-23 9207 Monterey Point Lobos State Park. Comment
  POM257237  Chorizanthe pungens var. pungens H. L. Mason 1923-6-23 565 Monterey Del Monte Comment
  RSA65176  Chorizanthe douglasii H. L. Mason 1923-6-23 542 Monterey 10 miles above Carmel Comment
  UC1039599  Arceuthobium campylopodum Herbert L. Mason 1929-12-1 5515 Monterey Huckleberry Hill Carmel Comment
  UC1076234  Lupinus arboreus H. L. Mason 1923-6-23 569 Monterey Del Monte Comment
  UC1083385  Pinus muricata Herbert L. Mason 1941-3-28 12398 Monterey along road from Pacific Grove to Carmel; Huckleberry hill Comment
  UC1111006  Plantago erecta Herbert L. Mason 1932-4-28 7038 Monterey Pajaro Hills Comment
  UC555442  Amelanchier utahensis H. L. Mason 1930-10-25 5743 Monterey Headwaters of Arroyo Seco; Santa Lucia Mts. Comment
  UC565553  Stephanomeria elata H. L. Mason 1930-10-25 5745 Monterey Headwaters of the Arroyo Seco Santa Lucia Mountains Comment
  UC566779  Petunia parviflora H. L. Mason 1929-10-13 5507 Monterey Bradley Salinas River (bridge over Salinas River) Comment
  UC566784  Eryngium armatum Herbert L. Mason 1927-7-30 3986 Monterey Cypress Point Comment
  UC566907  Forestiera pubescens H. L. Mason 1928-10-2 4977 Monterey bridge over Salinas River, Salinas; Salinas, Salinas River Comment
  UC566946  Centaurium exaltatum H. L. Mason 1928-10-2 4978 Monterey 1 mi below Salinas; Salinas River Comment
  UC570709  Nicotiana quadrivalvis H. L. Mason 1928-10-2 4974 Monterey 1 mi below Salinas (Salinas River); Salinas River Comment
  UC570995  Rhamnus crocea Herbert L. Mason 1934-6-23 539 Monterey Carmel River Comment
  UC571093  Arbutus menziesii H. L. Mason 1930-10-25 5751 Monterey Headwaters of Arroyo Seco Arroyo Seco; Santa Lucia Mountains, Arroyo Seco Comment
  UC581142  Hesperomecon linearis H. L. Mason 1935-4-21 8268 Monterey Carmel Canyon Comment
  UC581184  Stylomecon heterophylla H. L. Mason 1935-4-21 8267 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
  UC634549  Salix melanopsis H. L. Mason 1923-6-23 543 Monterey Carmel R. Comment
  UC634617  Ceanothus dentatus Herbert L. Mason 1923-6-23 564 Monterey Del Monte Comment
  UC634798  Ceanothus cuneatus var. rigidus Herbert L. Mason 1923-6-23 563 Monterey Del Monte 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
  UC635693  Salvia sonomensis H. L. Mason 1930-10-25 5748 Monterey Headwaters of the Arroyo Seco; Santa Lucia Mountains Comment
  UC672257  Hazardia squarrosa var. squarrosa H. L. Mason 1930-10-25 5772 Monterey banks of San Antonio River San Antonio River Comment
  UC672559  Antirrhinum kelloggii H. L. Mason 1932-4-28 7030 Monterey Pajaro Hills Comment
  UC673630  Stylocline gnaphaloides H. L. Mason 1932-4-28 7044 Monterey Pajaro Hills Comment
  UC908869  Eriastrum virgatum Herbert L. Mason 541 Monterey along the Carmel River Carmel Valley Comment
  UC908975  Gilia achilleifolia subsp. multicaulis Herbert L. Mason, Edward Lee April, 1935 9437 Monterey Point Lobos State Park Comment
  UC912207  Artemisia pycnocephala Herbert L. Mason 1923-6-23 547 Monterey Carmel River Comment
  UC912274  Deinandra corymbosa Herbert L. Mason 1932-4-28 7041 Monterey Pajaro Hills Comment
  UC912404  Rhamnus ilicifolia Herbert L. Mason 1930-10-25 5747 Monterey Headwaters of the Arroyo Seco Santa Lucia Mountains Comment
  CAS-BOT-BC226458  Gilia tenuiflora subsp. tenuiflora H. L. Mason 1921-5-7 s.n. Monterey Rancho del Monte 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-BC342430  Logfia gallica H. L. Mason 1932-4-28 7042 Monterey Pajaro Hills 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-BC524333  Triteleia ixioides subsp. ixioides H. L. Mason 1921-5-1 s.n. Monterey Rancho del Monte, Carmel River Comment
  CAS-BOT-BC532199  Horkelia californica var. frondosa Herbert Mason; Edward Lee 1934-10-1 9359 Monterey Whaler's Knoll, Point Lobos State Park 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
  UC1111606  Downingia cuspidata Herbert L. Mason 1938-5-6 11767 Monterey outside of Jolon (at the junction to Indian Road); Santa Lucia Park Comment
  UC565520  Stephanomeria virgata subsp. pleurocarpa H. L. Mason 1930-10-25 5788 Monterey between Santa Lucia Ranger Station Jolon (along the San Antonio River); Santa Lucia Mountains, San Antonio River 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
  UC635002  Eriogonum elegans H. L. Mason 1930-10-25 5777 Monterey between Jolon and Santa Lucia Ranger Station (foothills of Santa Lucia Mountains); Santa Lucia Mountains Comment
  UC635705  Samolus parviflorus H. L. Mason September 1930 5904 Monterey Elkhorn Slough between Watsonville and Castroville; Elkhorn Slough Comment
  UC672341  Phacelia douglasii Herbert L. Mason 1930-4-21 5606 Monterey Priest Valley Comment
  UC672413  Phacelia ciliata var. ciliata Herbert L. Mason 1929-3-3 5043 Monterey mesa above Soledad (4 mi sw of town) Comment
  UC673534  Mimulus pilosus H. L. Mason 1929-10-13 5508 Monterey river bridge at Bradley; Salinas River Comment
  UC1039590  Phoradendron densum Herbert L. Mason 1926-1-2 2608 Napa Mt. St. Helena, Toll House Canyon Comment
  UC1039601  Phoradendron densum Herbert L. Mason 1926-1-2 2607 Napa Mt. St. Helena, Toll House Canyon Comment
  UC1076281  Cupressus sargentii H. L. Mason 1926-1-2 2606 Napa Toll House Canyon Mt. St. Helena Comment
  UC1076342  Aspidotis densa Herbert L. Mason 1926-1-2 2609 Napa Toll House Canyon; Mt St Helena Comment
  UC1199839  Apocynum cannabinum Herbert L. Mason 1942-9-29 12559 Napa ca. 1 mi. n. Rutherford (edge of Beaulieu Ranch) Comment
  UC555288  Adenostoma fasciculatum H. L. Mason 1925-1-22 1203 Napa Wooden Valley Grade Comment
  UC555393  Cercis occidentalis H. L. Mason 1926-3-27 2798 Napa road between Gordon Valley and Wooden Valley (Solano-Napa Counties) Comment
  UC634834  Garrya fremontii H. L. Mason 1925-1-22 1201 Napa Wooden Valley Grade Comment
  UC907816  Linanthus dichotomus Herbert L. Mason 1933-4-30 7230 Napa near Aetna Springs Comment
  CAS-BOT-BC348540  Micropus californicus var. californicus H. L. Mason 1934-4-30 8103 Napa West side of Wooden Valley grade, near summit Comment
  POM224204  Nemacladus montanus H. L. Mason 1935-5-30 10000 Napa Four miles north of Knoxville Mines. Comment
  POM256859  Apocynum X floribundum H. L. Mason 1939-5-18 12104 Napa Wooden Valley Comment
  UC1076280  Cupressus macnabiana H. L. Mason 1924-1-23 1208 Napa Pope Canyon Comment
  UC573155  Plagiobothrys tenellus Herbert L. Mason 1926-3-14 2737 Napa near summit Mount St. Helena Comment
  UC623308  Apocynum androsaemifolium H. L. Mason 1939-5-18 12103 Napa near summit of Wooden Valley Grade Comment
  UC634937  Claytonia gypsophiloides H. L. Mason 1926-3-3 2716 Napa Mt. St. Helena Comment
  UC635556  Agoseris hirsuta Herbert L. Mason 1926-3-20 2748 Napa marshes s of, along railroad right of way Calistoga Comment
  UC673520  Erysimum capitatum H. L. Mason 1926-3-14 2725 Napa Mount St. Helena Comment
  UC673560  Corallorhiza striata H. L. Mason 1926-3-22 2787 Napa near base of grade from Calistoga to Petrified Forest Comment
  UC908224  Phlox gracilis Herbert L. Mason 1926-3-22 2791 Napa between Calistoga and Petrified Forest Comment
  UC908407  Navarretia intertexta Herbert L. Mason 1935-5-30 8329 Napa between Lower Lake and Knoxville mine (Napa-Lake counties) Comment
  UC909076  Navarretia viscidula Herbert L. Mason 1935-5-30 8321 Napa just s Napa State Hospital Comment
  UC912237  Xanthium spinosum Herbert L. Mason 1923-10-6 767 Napa in pasture bordering Suisun Marsh Comment
  UCD123886  Kickxia elatine Herbert L. Mason 1942-9-29 12557 Napa 2 miles north of Calistoga, Napa River. Comment
  UCD137456  Cheilanthes gracillima Herbert L. Mason 1936-3-14 2736 Napa Mt. St. Helena. Comment
  UCD48715  Navarretia viscidula Herbert L. Mason 1935-5-30 8321 Napa Fields just south of the Napa State Hospital, Napa County, California. 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-BC31525  Carex limosa Herbert L. Mason 1952-8-16 14484 Nevada Meadow opposite Univ of CA Trout Laboratory. Sage Hen Creek. 1981 Comment
  CAS-BOT-BC34251  Carex capitata Herbert L. Mason 1952-7-19 14418 Nevada Sierra Nevada. Sage Hen Creek. Meadow opposite University of California Trout Laboratory. 1981 Comment
  UC1039609  Cryptogramma acrostichoides Herbert L. Mason Jul 7 1939-Jul 8 1939 12149 Nevada 3 mi w Donner Summit; Sierra Nevada 2072 Comment
  UC1060645  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1957-7-7 14729 Nevada sw Hobart Mills; Prosser Meadow Comment
  UC1106322  Carex vesicaria Herbert L. Mason, B. Fuller, H. Whisler 1958-7-13 19 Nevada 1 mi w Unniversity of California Trout Laboratory (peat meadow back of stream, 12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1106325  Drosera rotundifolia Herbert L. Mason, B. Fuller and H. Whisler 1958-7-13 23 Nevada 1 mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1177525  Taraxia subacaulis Herbert L. Mason, B. Fuller, and H. Whisler 1958-6-29 11 Nevada 1 mi w University of California Trout Laboratory (12 mi n of Truckee); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC1191138  Mimulus leptaleus Herbert L. Mason Jul 7 1939-Jul 8 1958 12157 Nevada 3 mi w Donner Summit 2072 Comment
  UC634628  Ceanothus lemmonii H. L. Mason 1926-5-29 3284 Nevada Rattlesnake Creek five miles south of Grass Valley. 609 Comment
  UC634891  Dendromecon rigida H. L. Mason 1926-5-29 3284 a Nevada Donner Pass Road near Alta Comment
  UC635733  Dichelostemma multiflorum H. L. Mason 1926-5-29 3287 Nevada near Alta (Donner Pass road) Comment
  UC672146  Calochortus nudus Herbert L. Mason 1926-5-29 3297 Nevada 3 mi w Cisco 1767 Comment
  UC672327  Hydrophyllum capitatum var. alpinum H. L. Mason 1926-5-29 3302 Nevada Truckee River Comment
  UC672591  Hypericum concinnum H. L. Mason 1926-5-29 3282 Nevada 5 mi. s. Grass Valley (Rattlesnake Creek); Rattlesnake Creek 609 Comment
  UC9637755  Navarretia divaricata Herbert L. Mason Jul 7 1939-Jul 8 1939 12150 Nevada 3 mi w Donner Summit 2072 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
  UC965540  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1952-7-10 14311 Nevada 1 mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965542  Gentianopsis simplex Herbert L. Mason 1952-8-16 14473 Nevada meadow opposite U.C. Trout Lab. (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965544  Spiranthes romanzoffiana Herbert L. Mason 1952-8-16 14485 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965557  Cardamine breweri Herbert L. Mason 1952-7-10 14317 Nevada meadow one mi w University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, , UC Trout Laboratory 1981 Comment
  UC965558  Rorippa curvisiliqua Herbert L. Mason 1952-7-10 14315 Nevada in meadow one mi w University of California Trout Laboratory (Sage Hen Creek); Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965571  Ageratina occidentalis Herbert L. Mason 1952-8-16 14478 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
  UC965576  Plagiobothrys hispidulus Herbert L. Mason 1952-7-16 14350 Nevada adjacent to stream which arises from large spring in meadow one mi w University of California Trout Laboratory; Sierra Nevada, Sage Hen 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
  UC965584  Oreostemma alpigenum var. andersonii Herbert L. Mason 1952-7-11 14322 Nevada 1 mi w University of California Trout Laboratory; Sage Hen Creek 1981 Comment
  UC965597  Carex subfusca Herbert L. Mason 1952-8-16 14488 Nevada meadow opposite University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek 1981 Comment
  UC965642  Mimulus moniliformis Herbert L. Mason 1952-7-18 14404 Nevada upstream from University of California Trout Laboratory; Sierra Nevada, Sage Hen Creek Comment
  CAS-BOT-BC119824  Carex nebrascensis Herbert L. Mason 1952-7-16 14348 Nevada One mi W of Univ of CA Trout Laboratory. Sage Hen Creek. 1981 Comment
  CAS-BOT-BC230929  Plagiobothrys hispidulus Herbert L. Mason 1952-7-16 14364 Nevada 1 mile W of University of California Trout Laboratory, Sage Hen Creek 1981 Comment
  CAS-BOT-BC286356  Cirsium scariosum Herbert L. Mason 1952-7-11 14334 Nevada Sierra Nevada. One mile west of University of California Trout Laboratory. Sage Hen [Sagehen] 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
  POM310939  Epilobium oregonense H. L. Mason 1952-7-16 14345 Nevada Sage Hen Creek, 1 mile W of University of California Trout Laboratory. 1982 Comment
  SEINET13351343  Carex disperma H. L. Mason 1952-8-16 14469 Nevada Sierra Nevada, Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  SEINET6175342  Juncus nevadensis H. L. Mason 1952-7-19 14417 Nevada Sierra Nevada, Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  SEINET9183998  Scirpus microcarpus H. L. Mason 1952-8-16 14471 Nevada Sierra Nevada, Sage Hen Creek, meadow opposite University of California Trout Laboratory 1981 Comment
  UC1178936  Sanicula graveolens Herbert L. Mason 1952-7-10 14340 Nevada n of Hobart Mills (Sage Hen Creek); Sage Hen Creek Comment
  UC1093919  Deinandra fasciculata Herbert L. Mason 1926-4-25 2932 Orange 5 mi s Laguna Comment
  UC566776  Nicotiana clevelandii Herbert L. Mason 1926-4-25 2929 Orange 5 mi s Laguna (sea cliffs) Comment
  UC570695  Physalis crassifolia Herbert L. Mason 1926-4-25 2933 Orange 5 mi s of Laguna Comment
  UC592180  Eucrypta chrysanthemifolia var. chrysanthemifolia H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Beach Comment
  UC635403  Camissoniopsis intermedia H. L. Mason 1926-4-25 2926 Orange 5 mi s Laguna Comment
  UC672389  Phacelia parryi Herbert L. Mason 1926-4-25 2911 Orange 5 mi s Laguna Comment
  UC672439  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange near Laguna Comment
  UC672564  Antirrhinum nuttallianum subsp. subsessile H. L. Mason 1926-4-25 2907 Orange 5 mi s Laguna Comment
  UC673435  Castilleja exserta subsp. exserta Herbert L. Mason 1926-4-25 2935 Orange 5 mi s Laguna Comment
  UCD128336  Achillea millefolium Steve Mason; Pam Rector 1993-4-16 4 Orange Laguna Niguel, Sea View Park Trail, about 25 yards up trail on left side, on border between disturbed terrain and coastal sage scrub. Near housing development overlooking canyon and coastline. 182 Comment
  CAS-BOT-BC163589  Clarkia biloba subsp. biloba H. L. Mason 1926-5-28 3270 Placer Five miles above Auburn Comment
  CAS-BOT-BC51157  Ceanothus lemmonii H. L. Mason 1926-5-29 3285 Placer Donner Pass Road near Alta Comment
  UC1191221  Erigeron coulteri Herbert L. Mason 1939-8-3 12204 Placer n of Lake Tahoe (Squaw Creek Valley); Squaw Creek Valley 1889 Comment
  UC565461  Scutellaria californica Herbert L. Mason 1926-5-26 3274 Placer 5 mi above Auburn Comment
  UC565577  Penstemon heterophyllus var. purdyi Herbert L. Mason 1926-5-28 3271 Placer 5 mi above Auburn; above Auburn Comment
  UC566896  Tauschia hartwegii H. L. Mason 1926-5-28 3266 Placer hills near Auburn (Auburn) Comment
  UC570790  Chamaesyce maculata H. L. Mason 1929-10-4 5451 Placer 1.5 mi above Auburn Comment
  UC912594  Calycadenia multiglandulosa H. L. Mason 1929-10-4 5455 Placer 2.4 mi below Weimar Comment
  CAS-BOT-BC271967  Eriogonum nudum var. pubiflorum H. L. Mason 1929-10-4 5450 Placer Three miles south of Roseville on Folsom Road Comment
  CAS-BOT-BC537088  Viola lobata H. L. Mason 1926-5-29 3290 Placer 2 miles W of Emigrant Gap Comment
  SEINET8480274  Fritillaria E. W. Mason 1976-3-13 s.n. Placer Ca 2 miles S of Auburn. 305 Comment
  UC634780  Orogenia fusiformis H. L. Mason 1933-5-28 7237 Placer Lower Truckee R. Meadows Comment
  UC912268  Holocarpha virgata subsp. virgata Herbert L. Mason 1929-10-4 5449 Placer 3 mi s of Roseville; Folsom Road Comment
  UC971863  Limnanthes striata Charles T. Mason Jr. 1949-5-9 1296 Placer 4 mi ne Shingle Springs (on U.S. Hwy 50 at railroad crossing) Comment
  CAS-BOT-BC160890  Camissonia tanacetifolia subsp. tanacetifolia H. L. Mason 1924-6-15 1037 Plumas Graeagle Comment
  CAS-BOT-BC59609  Leucothoe davisiae Herbert L. Mason 1924-6-19 1073 Plumas Along margins of Bear Lake at base of Mt. Elwell. Comment
  UC1061646  Pseudotsuga menziesii Herbert L. Mason Plumas 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
  UC570996  Rhamnus purshiana Herbert L. Mason 1924-6-19 1071 Plumas along stream running n into Bear Lake Bear Lake Comment
  UC635149  Chimaphila umbellata H. L. Mason 1924-6-18 1054 Plumas rd. between Graeagle and Gold Lake Comment
  UC908133  Navarretia intertexta Herbert L. Mason 1924-6-20 1081 Plumas near Gold Lake (along trail from Gold Lake to Graeagle Camp) Comment
  CAS-BOT-BC222110  Monardella odoratissima subsp. pallida H. L. Mason 1924-6-16 1043 Plumas South banks of Feather River, near Graeagle Comment
  CAS-BOT-BC400106  Nuphar polysepala H. L. Mason 1924-6-20 1089 Plumas Near Graeagle Lodge Comment
  JEPS58436  Linanthus harknessii Herbert L. Mason 1924-6-20 1084 Plumas between Gold Lake Bear Lake Comment
  POM310936  Boisduvalia densiflora var. densiflora H. L. Mason 1952-7-17 14380 Plumas Sierra Nevada: Along Western Pacific tracks just south of Beckwourth, Sierra Valley. 1524 Comment
  POM312468  Spirodela polyrhiza H. L. Mason 1953-7-8 14561 Plumas 4 miles northwest of Loyalton 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
  UC2035859  Monardella odoratissima subsp. glauca H. L. Mason 1924-6-16 1043 Plumas South banks of Feather River, near Graeagle. Comment
  UC555549  Sanguisorba annua H. L. Mason 1924-6-16 1042 Plumas near Graeagle (South banks of Feather River); s banks of Feather River Comment
  UC634862  Monardella odoratissima subsp. glauca H. L. Mason 1924-6-16 1043 Plumas near Graeagle (s banks of river); Feather River Comment
  UC635436  Eriogonum ursinum Herbert L. Mason 1924-6-19 1070 Plumas near base of Mt. Elwell; Bear Lake Comment
  UC907847  Navarretia capillaris Herbert L. Mason 1924-6-18 1064 Plumas 1 mi from Gold Lake; 1 mi from Gold 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
  UC909040  Ipomopsis aggregata Herbert L. Mason 1924-6-15 1035 Plumas near junction of Greagle Creek and Feather River Blairsden Comment
  CAS-BOT-BC194146  Astragalus pomonensis H. L. Mason 1926-4-30 3114 Riverside Temecula Canyon, one mile south of Temecula Comment
  CAS-BOT-BC407618  Gilia ochroleuca subsp. exilis Herbert L. Mason 1926-4-30 3111 Riverside Temescal Canyon Comment
  JEPS16749  Mimulus aurantiacus var. pubescens Herbert L. Mason 1926-5-2 3190 Riverside Aguanga Valley Comment
  SD46093  Justicia californica Herbert L. Mason 1952-4-7 14212 Riverside Palm Canyon Comment
  UC1039596  Phoradendron californicum H. L. Mason 1928-3-11 4233 Riverside desert flats near Indio Comment
  UC1039776  Mimulus aurantiacus var. pubescens Herbert L. Mason 1926-5-2 3190 Riverside Aguanga Valley Comment
  UC1051456  Monoptilon bellioides Herbert L. Mason 1952-4-7 14210 Riverside Palm Springs Palm Canyon Comment
  UC1083106  Lycium Herbert L. Mason 1928-3-10 4215 Riverside Hidden Springs Canyon Coachella Mts. Comment
  UC1199819  Alnus rhombifolia Herbert L. Mason 1928-3-10 4174 Riverside Snow Creek-White Water River Valley Colorado Desert Comment
  UC555538  Lotus argophyllus H. L. Mason 1926-4-30 3116 Riverside 1 mi s Temecula; Temecula Canyon Comment
  UC566780  Physalis crassifolia H. L. Mason 1928-3-10 4185 Riverside Whitewater River Comment
  UC566918  Centaurium venustum H. L. Mason 1926-4-30 3126 Riverside Pala Grade Temescal Canyon Comment
  UC570705  Nicotiana clevelandii H. L. Mason 1928-3-10 4211 Riverside Hidden Springs; Coachella Mountains Comment
  UC573068  Cryptantha holoptera H. L. Mason 1928-3-10 4232 Riverside Hidden Springs Canyon Coachella Mountains Comment
  UC592158  Streptanthella longirostris Herbert L. Mason 1928-3-11 4194 Riverside near Whitewater Comment
  UC635000  Eriogonum inflatum var. inflatum H. L. Mason 1928-3-10 4230 Riverside Hidden Springs Canyon Coachella Mountains, Hidden Springs Canyon Comment
  UC635282  Chylismia claviformis subsp. aurantiaca H. L. Mason 1928-3-11 4242 Riverside desert flats near Indio Comment
  UC635401  Camissoniopsis pallida subsp. pallida H. L. Mason 1928-3-10 4234 Riverside near Indio Comment
  UC635591  Stillingia linearifolia H. L. Mason 1926-5-2 3192 Riverside Aguanga Valley Comment
  UC635651  Triodanis biflora H. L. Mason 1926-5-2 3199 Riverside Temecula Valley Comment
  UC672095  Hesperocallis undulata Herbert L. Mason 1928-3-10 4208 Riverside Coachella Mountains, Hidden Springs Canyon Hidden Springs Canyon; Coachella Mountains, Hidden Springs Canyon Comment
  UC672401  Phacelia crenulata var. ambigua Herbert L. Mason 1928-3-11 4237 Riverside near Indio; Colorado Desert Comment
  UC672405  Phacelia crenulata var. ambigua Herbert L. Mason 1928-3-10 4199 Riverside Whitewater, Colorado Desert Comment
  UC672560  Antirrhinum kelloggii Herbert L. Mason 1926-5-2 3198 Riverside Temecula Valley Comment
  UC672659  Mentzelia involucrata H. L. Mason 1928-3-10 4192 Riverside White Water River Comment
  UC908894  Gilia diegensis Herbert L. Mason 1928-3-11 4257 Riverside San Gorgonio Pass Comment
  UC909105  Loeseliastrum schottii Herbert L. Mason 1928-3-11 4254 Riverside Palm Springs Comment
  UC912283  Mirabilis laevis var. retrorsa Herbert L. Mason 1928-3-10 4176 Riverside Snow Creek, Whitewater River Valley, Colorado Desert Comment
  UC912625  Abronia villosa H. L. Mason 1928-3-10 4193 Riverside Whitewater River Comment
  RSA0119709  Eriastrum diffusum subsp. coachellae H. L. Mason 1952-4-7 14214 Riverside Palm Canyon, Palm Springs. Comment
  JEPS45768  Elatine brachysperma H. L. Mason 1934-3-25 Sacramento near Rio Linda Comment
  UC1141495  Lysimachia nummularia Herbert L. Mason 1950-1 Sacramento Folsom Comment
  UC769971  Silene gallica Herbert L. Mason 1934-3-25 7945 Sacramento Keithly Ranch Sacramento Valley, Rio Linda, Keithly ranch Comment
  UC769973  Soliva sessilis Herbert L. Mason 1934-3-25 7957 Sacramento Keithly Ranch Sacramento Valley, Rio Linda, Keithly Ranch (Rio LInda, Sacramento Valley) Comment
  UC769975  Lepidium latipes Herbert L. Mason 1934-3-25 7959 Sacramento Keithly Ranch Sacramento Valley, Rio Linda Comment
  UC769976  Sanicula bipinnatifida Herbert L. Mason 1934-3-25 7960 Sacramento Sacramento Valley, Rio Linda, Keithly Ranch Rio Linda; Sacramento Valley, , Keithly Ranch Comment
  UC769979  Cerastium glomeratum Herbert L. Mason 1934-3-25 7966 Sacramento Rio Linda, Keithly Ranch Sacramento Valley, Rio Linda, Keithly Ranch Comment
  UC769980  Hordeum marinum subsp. gussoneanum Herbert L. Mason 1934-3-25 7967 Sacramento Keithly Ranch Sacramento Valley, , Keithly Ranch (Rio Linda) Comment
  UC769982  Navarretia leucocephala Herbert L. Mason 1934-3-25 7973 Sacramento Rio Linda, Keithly ranch Sacramento Valley Comment
  UC769984  Trifolium depauperatum var. depauperatum Herbert L. Mason 1934-3-25 7974 Sacramento Keithly Ranch Rio Linda Comment
  UC769997  Triphysaria eriantha subsp. eriantha Herbert L. Mason 1934-3-25 7955 Sacramento Rio Linda Sacramento Valley, Rio Linda (Keithly ranch) Comment
  UC769998  Erodium botrys Herbert L. Mason 1934-3-25 7954 Sacramento Rio Linda, Keithly ranch Sacramento Valley Comment
  UC770001  Isoetes nuttallii Herbert L. Mason 1934-3-25 7950 Sacramento Rio Linda, Keithly ranch Comment
  UC912588  Psilocarphus brevissimus var. brevissimus Lucile Mason 1934-3-25 Sacramento Rio Linda Comment
  UC971801  Limnanthes alba subsp. alba Charles T. Mason Jr. 1948-5-13 1184 Sacramento 6 mi e Sacramento (ditch on s side of State Hwy 16) 30 Comment
  UC971825  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-29 1241 Sacramento 4 mi e Sloughhouse (on n and s sides of State Hwy 16) 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
  SEINET3817871  Soliva sessilis Herbert L. Mason 1934-3-25 7957 Sacramento Unbroken, marginal valley land, Keithly ranch, Rio Linda 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
  JEPS9666  Acanthomintha lanceolata Herbert L. Mason 1940-5-5 12284 San Benito 6 mi se of Pacines (and 2.4 mi e of Emmet School, Panoche Pass); Inner South Coast Ranges, San Carlos Range, Panoche Pass 609 Comment
  RSA114062  Convolvulus simulans H. L. Mason 1952-4-27 14282 San Benito About 3 miles from mouth of San Carlos Canyon Comment
  UC1060647  Ancistrocarphus filagineus Herbert L. Mason 1957-5-11 14697 San Benito 2-3 mi e Hernandez Comment
  UC1093675  Streptanthus insignis Herbert L. Mason 1957-5-11 14734 San Benito canyon entrance 4-5 mi e Hernandez; Clear Creek Canyon Comment
  UC1111530  Phacelia breweri Herbert L. Mason 1957-5-11 14736 San Benito 4-5 mi e Hernandez (entrance to canyon); Clear Creek Canyon Comment
  UC1111531  Pentachaeta exilis subsp. aeolica Herbert L. Mason 1957-5-11 14732 San Benito two-three mi e Hernandez Comment
Read comments
May 23 2020
  UC566820  Apiastrum angustifolium H. L. Mason 1930-3-30 5534 San Benito 14 mi below the Pinnacles (San Benito River Canyon); San Benito River Canyon Comment
  UC570841  Ribes aureum var. gracillimum H. L. Mason 1932-4-3 6924 San Benito nw Priest Valley (near summit of grade); Lewis Creek Grade Comment
  UC635604  Eschscholzia hypecoides H. L. Mason 1930-3-30 5530 San Benito 14 mi below the Pinnacles; San Benito River Canyon Comment
  UC673433  Triphysaria micrantha H. L. Mason 1930-4-21 5602 San Benito Priest Valley Comment
  UC775188  Clarkia breweri Herbert L. Mason 1940-5-5 12282 San Benito 2.4 mi se Emmet School (on Panoche Pass road); Inner South Coast Ranges, Tres Pinos Creek Comment
  SEINET7881867 Image available Micropus californicus Herbert L. Mason 1952-1 14281 San Benito San Carlos Canyon Comment
  CAS-BOT-BC182597  Astragalus didymocarpus var. dispermus H. L. Mason 1926-4-27 3075 San Bernardino Near Victorville, Mojave Desert Comment
  CAS-BOT-BC263158  Eriogonum maculatum H. L. Mason 1926-4-28 3080 San Bernardino Box S Springs, Mohave [Mojave] Desert Comment
  CAS-BOT-BC376095  Stylocline micropoides Herbert L. Mason 1952-4-9 14236 San Bernardino Sawtooth Range, south of Needles Comment
  POM269959  Ranunculus cymbalaria var. saximontanus H. L. Mason 1926-4-28 3091 San Bernardino Box S Ranch Comment
  SD46096  Euphorbia eriantha Herbert L. Mason 1952-4-9 14232 San Bernardino 10 miles south of Needles Comment
  SD46101  Linanthus arenicola Herbert L. Mason 1952-4-11 14250 San Bernardino Lava bed just east of Dagget. Comment
  SD46103  Gilia scopulorum Herbert L. Mason 1952-4-11 14257 San Bernardino Black lavas north of Pisgah Crater. Comment
  SD46106  Nama pusilla Herbert O. Mason 1952-4-11 14255 San Bernardino North of Pisgah Cater Comment
  UC1039626  Mohavea breviflora Herbert L. Mason 1935-4-30 8291 San Bernardino w of Searles Lake (sw of Trona, Poison Canyon); Poison Canyon Comment
  UC1039640  Atrichoseris platyphylla Herbert L. Mason 1935-4-30 8290 San Bernardino Poison Canyon Comment
  UC1039641  Atrichoseris platyphylla Herbert L. Mason 1935-4-30 8290 San Bernardino Poison Canyon Comment
  UC1051461  Euphorbia eriantha Herbert L. Mason 1952-4-9 14232 San Bernardino 10 mi S of Needles Comment
  UC1051466  Dalea mollissima Herbert L. Mason 1952-4-9 14238 San Bernardino s. of Needles; Sawtooth Range Comment
  UC1051474  Thamnosma montana Herbert L. Mason 1952-4-10 14244 San Bernardino Mountain Pass, east of Las Vegas, Nevada Mountain Pass Comment
  UC1051484  Nama pusilla Herbert L. Mason 1952-4-11 14255 San Bernardino Black lavas n of Pisgah Crater; Black lavas Comment
  UC1051491  Loeseliastrum matthewsii Herbert L. Mason 1952-4-10 14247 San Bernardino e. of Las Vegas, Nevada (Mountain Pass Grade, CA); Mountain Pass Grade, CA Comment
  UC1051496  Phacelia pachyphylla Herbert L. Mason 1952-4-11 14248 San Bernardino just e Daggett; Black Lava Bed Comment
  UC1083113  Lycium cooperi Herbert L. Mason 1926-4-28 3086 San Bernardino Box S Spring Mojave Desert Comment
  UC1179025  Tamarix ramosissima Herbert L. Mason 1952-4-9 14226 San Bernardino 25 mi s Needles (on road from Blythe to Needles) Comment
  UC1179054  Sphaeralcea ambigua var. ambigua Herbert L. Mason 1952-4-9 14230 San Bernardino ten miles south of Needles Comment
  UC1199843  Draba cuneifolia Herbert L. Mason 1935-3-29 8224 San Bernardino w Searles Lake (Poison Canyon); Mojave Desert, , w of Searles Lake Comment
  UC555667  Rosa woodsii var. glabrata Herbert L. Mason 1926-4-28 3090 San Bernardino Box S Springs Mojave Desert Comment
  UC566685  Penstemon eatonii var. undosus Herbert L. Mason 1926-4-28 3079 San Bernardino Box S Springs , Box S Springs (Mojave Desert) Comment
  UC581158  Phacelia campanularia subsp. vasiformis H. L. Mason 1935-3-28 8187 San Bernardino se Stoddard Well; Mojave Desert, Taylors Springs Comment
  UC581179  Logfia depressa H. L. Mason 1935-3-29 8229 San Bernardino w of Searles Lake; Mojave Desert, Poison Canyon Comment
  UC581180  Stylocline psilocarphoides H. L. Mason 1935-3-29 8194 San Bernardino se Stoddard's Well; Mojave Desert, Taylor Springs Comment
  UC634683  Isomeris arborea H. L. Mason 1926-4-28 3081 San Bernardino Box S Ranch Spring Comment
  UC634776  Fremontodendron californicum subsp. californicum H. L. Mason 1927-6-14 3761 San Bernardino San Gabriel Mountains, Ice House Canyon Ice House Canyon; San Gabriel Mountains, Ice House Canyon Comment
  UC635174  Eucrypta micrantha H. L. Mason 1935-3-28 8174 San Bernardino 3 mi s Barstow; Mohave Desert Comment
  UC635419  Ranunculus cymbalaria var. saximontanus H. L. Mason 1926-4-28 3091 San Bernardino Box S Ranch; in springs Comment
  UC672346  Phacelia austromontana Herbert L. Mason 1927-6-14 3767 San Bernardino higher slopes Mt. San Antonio (Baldy) 2133 Comment
  UC672452  Collinsia torreyi var. wrightii H. L. Mason 1927-6-15 3776 San Bernardino San Gabriel Range, Mount Baldy Mount Baldy; San Gabriel Range, Mount Baldy 2590 Comment
  UC908136  Gilia latifolia Herbert L. Mason 1935-3-29 8227 San Bernardino w Searles Lake (Poison Canyon); Mohave Desert, w of Searles Lake, Poison Canyon Comment
  UC908204  Gilia hutchinsifolia Herbert L. Mason 1940-3-23 12249 San Bernardino sw Searles Lake (Poison Canyon); Mohave Desert, sw Searles Lake; Searles Lake, Mohave Desert, San Bernardino Co. Comment
  UC908418  Gilia subacaulis Herbert L. Mason 1935-4-30 8287 San Bernardino sw Searles Lake (Poison Canyon); Mohave Desert, Poison Canyon sw of Searles Lake Comment
  UC908481  Gilia minor Herbert L. Mason 1935-3-28 8180 San Bernardino three mi s Barstow (Mohave Desert); , s of Barstow Comment
  UC908582  Eriastrum eremicum subsp. eremicum Herbert L. Mason 1926-4-27 3070 San Bernardino near Victorville Comment
  UC908821  Gilia latiflora subsp. latiflora Herbert L. Mason 1935-3-29 8195 San Bernardino twelve mi w Barstow (Mohave Desert); Mohave Desert Comment
  UC908825  Gilia sinuata Herbert L. Mason 1935-3-28 8198 San Bernardino twelve mi w Barstow; Mohave Desert, w of Barstow Comment
  UC908847  Gilia sinuata Herbert L. Mason 1935-3-28 8181 San Bernardino three mi s Barstow (Mohave Desert); , s of Barstow Comment
  UC909131  Loeseliastrum matthewsii Herbert L. Mason 1926-4-27 3071 San Bernardino n. Victorville Comment
  UC909135  Loeseliastrum matthewsii Herbert L. Mason 1926-4-28 3089 San Bernardino s.e. Lucerne Valley P.O. (Box S Ranch); Box S Ranch Comment
  UC963783  Linanthus concinnus Herbert L. Mason 1927-6-15 3786 San Bernardino trail to summit of Mount Baldy (Mount San Antonio) San Gabriel Mountains, Mount Baldy (Mount San Antonio) 2133 Comment
  CAS-BOT-BC423164  Cleomella obtusifolia H. L. Mason 1935-3-29 8234 San Bernardino West side of Searles Lake, Mojave Desert. Comment
  CAS-BOT-BC514478  Eriastrum eremicum subsp. eremicum Herbert L. Mason 1926-4-27 3070 San Bernardino Near Victorville Comment
  SEINET10461099  Nemacladus rubescens Mason 1935-4-30 Mason 8281 c San Bernardino Head of Poison Canyon Comment
  UC581176  Stylocline intertexta H. L. Mason 1935-3-29 8233 San Bernardino w side of lake six mi s Trona; Mojave Desert, Searles Lake Comment
  UC709734  Loeseliastrum schottii Herbert L. Mason 1926-4-28 3099 San Bernardino Mohave Desert, Box S Ranch Comment
  UC908220  Gilia minor Herbert L. Mason 1935-3-28 8200 San Bernardino one mi n Kramer Junction (Mohave Desert); , n of Kramer Junction Comment
  UC908888  Gilia leptantha subsp. transversa Herbert L. Mason 1926-4-28 3109 San Bernardino Cajon Pass Comment
  CAS-BOT-BC202551  Euphorbia misella H. L. Mason 1925-4-18 1496 San Diego Hills near San Diego, Navy fuel dock Comment
  CAS-BOT-BC64572  Styrax redivivus Herbert L. Mason 1926-4-30 3138 San Diego San Luis Rey River, 4 mi. below Henshaw dam, Mr. Warner's Ranch. Comment
  UC1081503  Castilleja applegatei subsp. martinii H. L. Mason 1926-5-1 3162 San Diego Palomar Mountain Comment
  UC566834  Lomatium dasycarpum subsp. dasycarpum H. L. Mason 1926-4-30 3143 San Diego fields near Henshaw Dam Comment
  UC566878  Apiastrum angustifolium H. L. Mason 1926-4-30 3150 San Diego Oak Grove 853 Comment
  UC566899  Tauschia arguta H. L. Mason 1926-5-1 3152 San Diego Palomar Mountain Comment
  UC570691  Solanum parishii Herbert L. Mason 1926-4 3181 San Diego base of Palomar Mountain, Oak Grove Palomar Mountain; , Oak Grove Comment
  UC581491  Viola purpurea subsp. quercetorum H. L. Mason 1926-5-1 3163 San Diego on upper slopes of Palomar Mountain Comment
  UC634643  Garrya veatchii H. L. Mason 1926-5-1 3172 San Diego Palomar Mountain Comment
  UC634832  Garrya flavescens H. L. Mason 1926-5-1 3160 San Diego Palomar Mountain Comment
  UC635051  Chorizanthe procumbens Herbert L. Mason 1926-4-30 3129 San Diego Pala Grade toward Palomar Mt.; Pala Grade (toward Palomar Mt.) Comment
  UC635276  Oenothera californica subsp. californica H. L. Mason 1926-5-1 3180 San Diego Oak Grove Comment
  UC635593  Nemacladus pinnatifidus H. L. Mason April 1926 3177 San Diego Oak Grove Comment
  UC635595  Euphorbia misera H. L. Mason 1925-4-8 San Diego Hills near US Navy fuel dock. Comment
  UC673596  Lathyrus vestitus var. alefeldii Herbert L. Mason 1926-4-30 3117 a San Diego Temecula to Pala; Temecula Canyon, Pala Grade Comment
  UC908675  Eriastrum sapphirinum Herbert L. Mason 1926-4-30 3122 San Diego Temecula to Pala; Temecula Canyon, Pala Grade Comment
  UC963781  Linanthus lemmonii Herbert L. Mason 1926-5-1 3179 San Diego Oak Grove Comment
  UC1039559  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1927-3-11 3651 San Francisco Bernal Heights San Francisco, Bernal Heights Comment
  UC555292  Potentilla rivalis H. L. Mason 1925-10-17 2242 San Francisco Golden Gate Park , chain of lakes Comment
  UC555353  Trifolium depauperatum var. amplectens H. L. Mason 1928-4-25 4376 San Francisco Hunter's Point Comment
  UC558488  Psilotum nudum Herbert L. Mason 1936-11-16 San Francisco In pot with cycad, Conservatory, Golden Gate Park, San Francisco Comment
  UC566824  Hydrocotyle verticillata H. L. Mason 1928-8-12 4913 San Francisco Merced Lake Comment
  UC566860  Sanicula arctopoides H. L. Mason 1927-3-11 3653 San Francisco San Francisco, Bernal Heights Bernal Heights; San Francisco, Bernal Heights Comment
  UC581516  Viola pedunculata H. L. Mason 1926-3-1 1270 San Francisco Bernal Heights Comment
  UC634779  Lomatium caruifolium var. caruifolium H. L. Mason 1928-4-17 4372 San Francisco Hunter's Point Comment
  UC635307  Astragalus nuttallii var. virgatus Herbert L. Mason 1924-10-19 1116 San Francisco Merced Lake Merced Lake (sand dunes) Comment
  UC635699  Stachys chamissonis H. L. Mason 1924-10-19 1122 San Francisco Merced Lake San Francisco Comment
  UC672108  Fritillaria affinis Herbert L. Mason 1927-3-11 3654 San Francisco San Francisco, Bernal Heights Bernal Heights; San Francisco, Bernal Heights Comment
  UC673512  Zigadenus fremontii H. L. Mason 1927-3-11 3652 San Francisco Bernal Heights San Francisco Comment
  UC673610  Lathyrus littoralis Herbert L. Mason 1926-4-18 2863 San Francisco 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-BC451538  Elodea canadensis H. L. Mason 1939-6-9 12104 a San Joaquin About 9 miles southeast of Stockton at junction of Austin Road and Little John Creek Comment
  CAS-BOT-BC46944  Androsace elongata subsp. acuta H. L. Mason 1932-3-19 6820 San Joaquin two mi. e. of Midway. Midway is e. of Patterson Pass, and s. of Mountain House on Rt. 50. Comment
  HSC24640  Ceratophyllum demersum H. L. Mason 1938-6-12 11851 San Joaquin Trapper Slough, Robert's Island, SW of Holt Comment
  POM257004  Hesperevax caulescens H. L. Mason 1939-4-16 s.n. San Joaquin 9 miles SE if Stockton at jct of Austin Road and Little John Creek Comment
  UC1028679  Ceratophyllum demersum Herbert L. Mason 1938-8-26 12076 San Joaquin Trappers Slough Roberts Island (Roberts Island); , Roberts Island Comment
  UC1039794  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
  UC1099891  Potamogeton crispus Herbert L. Mason, S. Galen Smith 1948-8-5 8269 San Joaquin Trapper's Slough Robert's Island Comment
  UC1100127  Egeria densa Herbert L. Mason and Verne Grant 1946-8-21 13061 San Joaquin w of Stockton (on Borden Highway) Comment
  UC1100423  Carex comosa Herbert L. Mason 1928-9-30 4957 San Joaquin near Holt; San Joaquin Delta 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
  UC1100915  Bolboschoenus maritimus subsp. paludosus Herbert L. Mason 1948-5-31 13574 San Joaquin three mi n Ripon; n of Ripon Comment
  UC1101163  Polygonum lapathifolium Herbert L. Mason 1929-9-21 5440 San Joaquin Holt Alkaline Grasslands of San Joaquin Valley Comment
  UC1101177  Polygonum hydropiperoides Herbert L. Mason 1929-9-21 5442 San Joaquin Holt Alklaline Grasslands of San Joaquin Valley Comment
  UC565490  Monolopia lanceolata H. L. Mason 1932-3-19 6827 San Joaquin 2 mi e Midway (between Mountain House and Tracy) Comment
  UC573072  Pectocarya penicillata H. L. Mason 1932-3-19 6835 San Joaquin 2 mi e Midway (between Mountain House and Tracy) Comment
  UC573081  Plagiobothrys infectivus H. L. Mason 1932-3-19 6829 San Joaquin Tracy Hwy 2 mi e Midway Comment
  UC573083  Amsinckia lycopsoides H. L. Mason 1932-3-19 6814 San Joaquin w of Tracy (road from Mountain House to Midway) Comment
  UC632739  Elodea canadensis H. L. Mason 1939-4-16 12080 San Joaquin about 9 mi se Stockton (at junction of Austin Road and Little John Creek); Burnham Quad. Comment
  UC634672  Ludwigia peploides subsp. peploides H. L. Mason 1928-9-30 4953 San Joaquin San Joaquin Delta near Holt; San Joaquin Delta Comment
  UC635662  Downingia cuspidata H. L. Mason 1928-5-3 4446 San Joaquin 4 mi n Clements Comment
  UC635716  Androsace elongata subsp. acuta H. L. Mason 1932-3-19 6820 San Joaquin two mi e Midway Comment
  UC673370  Mentzelia pectinata Herbert L. Mason 1932-3-19 6823 San Joaquin 2 m e of Midway (between Mountain House and Tracy.) Comment
Read comments
Apr 26 2018
  UC694158  Psilocarphus brevissimus var. brevissimus H. L. Mason 1932-4-24 6967 San Joaquin 11 mi s Clements Comment
  UC702408  Wolffiella lingulata Herbert L. Mason 1945-10-10 San Joaquin Trappers Slough San Joaquin River, Roberts Island (Roberts Island, delta of the San Joaquin River) Comment
  UC912246  Eclipta prostrata Herbert L. Mason 1928-9-30 4966 San Joaquin near Holt; San Joaquin Delta Comment
  UC912410  Bidens laevis Herbert L. Mason 1929-9-9 5426 San Joaquin Holt Comment
  UC935759  Sagittaria latifolia Herbert L. Mason 1928-9-30 4960 San Joaquin San Joaquin Delta near Holt; San Joaquin Delta near Holt Comment
  UC936135  Wolffiella lingulata Herbert L. Mason 1945-10-10 San Joaquin Trappers Slough San Joaquin River, Roberts Island (Roberts Island, delta of the San Joaquin River) Comment
  UC936194  Alopecurus saccatus H. L. Mason 1932-4-24 6969 San Joaquin 11 mi. s. Clements Comment
  UC971821  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-4-24 1145 San Joaquin 7 mi ne Clements (along State Hwy 88) 91 Comment
  UC971826  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1949-3-29 1243 San Joaquin along state hwy 88 8 mi ne Clements Comment
  UC971831  Limnanthes alba subsp. alba Charles T. Mason Jr. 1948-4-24 1143 San Joaquin 3 mi n Mokelumne River Bridge (on State Hwy 88) 60 Comment
  CAS-BOT-BC190897  Calystegia sepium subsp. limnophila Herbert L. Mason; Verne Grant 1946-8-21 13067 San Joaquin Near Holt Comment
  POM257232  Egeria densa H. L. Mason 1938-8-26 12075 San Joaquin Trapper Slough, Robert s Island, southwest of Holt. 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
  CAS-BOT-BC226499  Gilia tenuiflora subsp. amplifaucalis Herbert L. Mason 1935-3-30 8249 San Luis Obispo Cholame Valley Comment
  POM312821  Juncus breweri H. L. Mason 1946-6-9 12873 San Luis Obispo Dune Lakes, between Oceano and mouth of Santa Maria River. Comment
  UC1100810  Scirpus pungens Herbert L. Mason 1946-6-9 12867 San Luis Obispo between Oceano and mouth of Santa Maria River Dune Lakes Comment
  UC581171  Stylocline masonii H. L. Mason 1935-3-30 8252 San Luis Obispo Cholame Valley Comment
  UC581173  Ancistrocarphus filagineus H. L. Mason 1935-3-30 8257 San Luis Obispo Cholame Valley Comment
  UC907809  Navarretia hamata subsp. parviloba Herbert L. Mason 1941-7-1 12467 San Luis Obispo Nipomo Mesa Comment
  UC908354  Gilia clivorum Herbert L. Mason 1935-3-30 8248 San Luis Obispo Cholame Valley Comment
  UC908544  Leptodactylon californicum Herbert L. Mason 1941-7-3 12474 a San Luis Obispo Oso Flaco Lake Comment
  UC908684  Leptodactylon californicum Herbert L. Mason 1923-6-21 527 San Luis Obispo Santa Margarita Comment
  POM264402  Prunus fasciculata H. L. Mason 1941-3-28 12403 San Luis Obispo North end of Nipomo mesa. 76 Comment
  RSA0107372  Eriastrum densifolium subsp. densifolium H. L. Mason 1941-7-1 12466 San Luis Obispo Mesa west of Nipomo. 107 Comment
  UC1076264  Lonicera interrupta Herbert L. Mason 1929-10-12 5492 San Luis Obispo 8.4 mi from Atascadero Comment
  UC1076552  Salicornia virginica Herbert L. Mason 1929-10-13 5504 San Luis Obispo 2.5 mi n Cambria Comment
  UC1083221  Quercus agrifolia Herbert L. Mason 1929-10-13 5501 a San Luis Obispo 2.5 mi n Cambria Comment
  UC1093959  Prunus fasciculata var. punctata Herbert L. Mason 1936-3-7 10992 San Luis Obispo 2 mi w of Nipomo; Nipomo Mesa Comment
  UC1093960  Oemleria cerasiformis Herbert L. Mason 1936-3-6 10987 San Luis Obispo 11 mi w San Luis Obispo (Pecho hills) Comment
  UC1179064  Caulanthus anceps Herbert L. Mason 1952-4-6 14203 San Luis Obispo e of Cholame; Temblor Range Comment
  UC555674  Rosa californica H. L. Mason 1929-10-12 5498 San Luis Obispo 10 mi w Atascadero Comment
  UC555685  Oemleria cerasiformis H. L. Mason 1923-6-22 533 San Luis Obispo Summit Cuesta Grade Comment
  UC570959  Ribes speciosum H. L. Mason 1934-3-31 8056 San Luis Obispo See Canyon Pecho Hills Comment
  UC570960  Ribes speciosum Herbert L. Mason 1929-10-12 5485 San Luis Obispo 4.3 mi w Atascadero; Atascadero Creek Comment
  UC570993  Rhamnus ilicifolia H. L. Mason 1929-10-12 5493 San Luis Obispo 8.4 mi w Atascadero (Morro Creek drainage); Morro Creek Comment
  UC632849  Solanum douglasii H. L. Mason 1936-3-6 San Luis Obispo 11 mi w of San Luis Obispo (in Pecho Hills); Pecho Hills Comment
  UC665607  Leptodactylon californicum Herbert L. Mason 1941-3-28 12402 San Luis Obispo n end Nipomo mesa; n end of Nipomo mesa 76 Comment
  UC673487  Dodecatheon clevelandii subsp. insulare H. L. Mason 1934-4-1 8058 a San Luis Obispo road from Cambria to Paso Robles; road from Cambria to Paso Robles Comment
  UC702407  Wolffia columbiana Herbert L. Mason 1946-6-9 12864 San Luis Obispo Dune Lakes Comment
  UC908540  Leptodactylon californicum Herbert L. Mason 1935-5-25 8318 San Luis Obispo Cuyama River n Santa Maria; Cuyama River Comment
  UC912270  Hemizonia congesta Herbert L. Mason 1929-10-12 5487 San Luis Obispo 5.2 mi from Atascadero Comment
  UC912533  Delphinium parryi subsp. blochmaniae Herbert L. Mason 1924-3-31 8050 San Luis Obispo six miles North of Cambria Comment
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Oct 25 2018
  UCD49900  Isolepis cernua Herbert L. Mason 1946-6-9 12866 San Luis Obispo Dune Lakes, between Oceano and mouth of Santa Maria River, San Luis Obispo County. Comment
  CAS-BOT-BC112608  Isolepis cernua Herbert L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC29291  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC391924  Anemone grayi H. L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  JROH4556  Allium peninsulare var. franciscanum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. 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
  POM313142  Polypogon monspeliensis H. L. Mason, Verne Grant 1946-8-28 13094 San Mateo On highway 5, about 3 miles south of Daly City Road. Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
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Sep 19 2011
  UC1083146  Quercus lobata Herbert L. Mason 1924-10-8 1109 San Mateo between Stanford University and Jasper Ridge Comment
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Sep 19 2011
  UC1190034  Poa unilateralis H. L. Mason 1921-5-28 San Mateo Pebble Beach near Pescadero Comment
  UC1192236  Jaumea carnosa Herbert L. Mason 1949-7-7 14033 San Mateo marshes at mouth Pescadero Creek Comment
  UC634908  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San. Bruno Comment
  UC672064  Trillium ovatum Herbert L. Mason 1927-4-23 3670 San Mateo La Honda Comment
  UC912455  Plectritis brachystemon Herbert L. Mason 1927-4-23 3689 San Mateo between La Honda and Pescadero Creek Comment
  CAS-BOT-BC165171  Clarkia rubicunda H. L. Mason 1921-7-14 s.n. San Mateo La Honda - Pescadero Road near Pescadero Creek Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC417699  Boykinia occidentalis H. L. Mason 1921-7-17 s.n. San Mateo Pescadero Creek on Pescadero-La Honda Road Comment
  CAS-BOT-BC420226  Boykinia occidentalis H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek on the La Honda-Pescadero Road Comment
  CAS-BOT-BC483178  Brodiaea terrestris subsp. terrestris H. L. Mason 1917-4-10 113 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC519009  Scoliopus bigelovii W. E. Mason 1917-4-1 s. n. San Mateo La Honda Grade Comment
  POM193749  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Unspecified. Comment
  RSA116718  Trientalis latifolia H. L. Mason 1917-4-21 s.n. San Mateo Permental Creek Comment
  RSA130590  Montia parvifolia H. L. Mason 1921-07 s.n. San Mateo Pescadero Creek. Comment
  RSA312360  Salicornia maritima H. L. Mason, Malcolm Nobs 1948-12-11 713 San Mateo Hwy 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  UC1076484  Sagina decumbens subsp. occidentalis Herbert L. Mason 1927-4-23 3685 San Mateo outcrop on rd. from La Honda to Pescadero Creek Comment
  UC1100787  Scirpus cernuus Herbert L. Mason 1949-7-7 14027 San Mateo mouth of Gazos Creek near ocean (southern San Mateo County); mouth of Gazos Creek Comment
  UC570868  Lithophragma heterophyllum Herbert L. Mason 1927-4-23 3684 San Mateo along road between La Honda and Pescadero Creek; road between La Honda and Pescadero Creek Comment
  UC635107  Aquilegia formosa H. L. Mason 1927-4-23 3674 San Mateo summit of rd betw La Hunda and Pescadero Creek Comment
  CAS-BOT-BC106210  Brickellia californica H. L. Mason 1927-9-23 4083 Santa Barbara Canyon back of Prisoners Harbor - Santa Cruz Island Comment
  CAS-BOT-BC422829  Papaver californicum H. L. Mason 1938-5-7 11790 Santa Barbara Burton Mesa, northwest of Lompoc Comment
  CAS-BOT-BC44732  Arctostaphylos purissima H. L. Mason 1934-3-31 8055 Santa Barbara La Purissima Ridge, north of Lompoc. Comment
  JEPS19555  Collinsia childii H. L. Mason 1946-6-8 12863 Santa Barbara Big Pine Mountain San Rafael Mountains (n side, headwaters of upper Sisquoc River) 1920 Comment
  JEPS19625  Chorizanthe obovata Herbert L. Mason 1946-6-7 12822 Santa Barbara 0.5 mi w Camuesa (Mono Flat); Mono Flat Comment
  JEPS36835  Stephanomeria cichoriacea Herbert L. Mason 1927-9-23 4082 Santa Barbara canyon back of Prisoners Harbor; Santa Cruz Island Comment
  JEPS59387  Atriplex semibaccata Herbert L. Mason 1927-9-24 4087 Santa Barbara hillslopes about West Ranch (Santa Cruz Island); , about West Ranch Comment
  OBI22899  Hesperolinon micranthum Herbert L. Mason 1946-6-7 12828 Santa Barbara Ridge between Camuesa Crk and Oso Crk S of lIttle Pine Mts on rd to Oso Gato 762 Comment
  RSA28606  Eastwoodia elegans H. L. Mason 1941-7-3 12490 Santa Barbara Head of Cuyama Valley, fourteen miles west of Maricopa 762 Comment
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Apr 29 2014
  RSA79876  Solanum umbelliferum H. L. Mason 1923-6-15 382 Santa Barbara Harris Grade. Comment
  SBBG53909  Vicia americana subsp. americana R. Mason 1980-3-26 Santa Barbara 1.5 mi down Willows Cyn Rd 76 Comment
  SEINET3836444 Image available Eriogonum arborescens Herbert L. Mason 1927-9-23 4084 Santa Barbara Prisoners Harbor, Santa Cruz Island Comment
  UC1039606  Centaurium davyi Herbert L. Mason 1941-7-2 12472 Santa Barbara s of Casmalia 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
  UC1076325  Phoradendron villosum H. L. Mason 1923-6-16 463 Santa Barbara Santa Barbara to La Combre Peak Comment
  UC1076439  Berberis pinnata subsp. insularis Herbert L. Mason 1927-9-25 4103 Santa Barbara along roadway through Buena Vista Canyon; Santa Cruz Isl Comment
  UC1077083  Calochortus albus Herbert L. Mason 1946-6-7 12835 Santa Barbara s of Little Pine Mt. (between Camuese Creek and Oso Creek) 762 Comment
  UC1077115  Zigadenus fremontii Herbert L. Mason 1938-5-7 11772 Santa Barbara Burton Mesa Comment
  UC1083158  Pinus muricata Herbert L. Mason 1927-9-25 4097 Santa Barbara Buena Vista Canyon along roadway Santa Cruz Island, Buena Vista Canyon, Buena Vista Creek (in the forest of Buena Vista Creek) Comment
  UC1083218  Quercus tomentella Herbert L. Mason 1927-9-25 4102 Santa Barbara pass from west ranch to Prisoners Harbor; Santa Cruz Island Comment
  UC1083382  Pinus Herbert L. Mason 1941-3-27 12390 Santa Barbara Burton Mesa Pine Canyon, Burton Mesa (Pine Canyon, w Santa Barbara County) Comment
  UC1093857  Suaeda taxifolia Herbert L. Mason 1927-11-27 4144 Santa Barbara Carpenteria Comment
  UC1093897  Allium crispum Herbert L. Mason 1938-5-8 11792 Santa Barbara road to Figueroa Mountain 1066 Comment
  UC1093961  Collinsia childii Herbert L. Mason 1946-6-8 12863 Santa Barbara n side Big Pine Mtn (headwaters of the Upper Sisquoc River); , San Rafael Mtns, Upper Sisquoc River 1920 Comment
  UC1093974  Lotus junceus Herbert L. Mason 1938-5-7 11769 Santa Barbara Burton Mesa Comment
  UC1111574  Ancistrocarphus filagineus Herbert L. Mason 1938-5-8 11794 Santa Barbara on rd to, (serpentine outcrop) Figueroa Mountain 1066 Comment
  UC1178873  Castilleja foliolosa Herbert L. Mason 1941-3-27 12395 Santa Barbara Burton Mesa Pine Canyon (mesa between San Antonio Creek and Santa Ynez River, Pine Canyon, w Santa Barbara County) Comment
  UC1191113  Pinus muricata Herbert L. Mason 1934-3-31 8043 Santa Barbara La Purisima Ridge n of Lompoc; La Purisima Ridge Comment
  UC1191126  Ceanothus Herbert L. Mason 1941-7-2 12474 Santa Barbara w Camp Cooke; Burton Mesa (w of Camp Cooke) 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
  UC555637  Heteromeles arbutifolia Herbert L. Mason 1927-9-25 4100 Santa Barbara along roadway through Buena Vista Canyon, Santa Cruz Island; Santa Cruz Island Comment
  UC555649  Cercocarpus betuloides var. blancheae Herbert L. Mason 1927-9-25 4108 Santa Barbara hills about Pelican Bay (Santa Cruz Island); Santa Cruz Island Comment
  UC565502  Malacothrix saxatilis var. implicata Herbert L. Mason 1927-9-25 4088 Santa Barbara West Ranch Santa Cruz Island Comment
  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
  UC570677  Solanum douglasii H. L. Mason 1927-11-27 4153 Santa Barbara 1 mi s of Carpinteria (near sea) Comment
  UC570719  Trichostema lanatum H. L. Mason 1923-6-16 438 Santa Barbara La Combre peak via La Combre Trail and Rattlesnake Canyon Comment
  UC571032  Vaccinium ovatum Herbert L. Mason 1927-9-25 4101 Santa Barbara Pine Ridge, slopes toward West Ranch Santa Cruz Island Comment
  UC573074  Cryptantha clevelandii H. L. Mason 1923-6-15 400 Santa Barbara Harris Grade La Purissima Ridge Comment
  UC581182  Mimulus H. L. Mason 1934-3-31 8049 Santa Barbara ne Lompoc; La Purissima Ridge Comment
  UC632867  Arctostaphylos purissima H. L. Mason 1938-5-7 11776 Santa Barbara Burton Mesa Comment
  UC634527  Eriogonum fasciculatum var. foliolosum H. L. Mason 1923-6-15 395 Santa Barbara Harris Grade between Harris and Lompoc; La Purisima Ridge, Harris Grade Comment
  UC634797  Ceanothus spinosus Herbert L. Mason 1923-6-16 442 Santa Barbara La Cumbre Peak Santa Barbara, La Cumbre Peak Comment
  UC634856  Arctostaphylos tomentosa subsp. eastwoodiana H. L. Mason 1934-3-31 8052 Santa Barbara between Harriston and Lompoc; La Purissima Ridge Comment
  UC634917  Salvia apiana H. L. Mason 1923-6-16 458 Santa Barbara between La Combre Peak and Santa Barbara Rattlesnake Canyon; La Combre Peak, Santa Barbara Comment
  UC635055  Chorizanthe staticoides Herbert L. Mason 1923-6-16 443 Santa Barbara along trail to La Cumbre Peaks; trail to La Cumbre Peaks Comment
  UC635056  Chorizanthe staticoides Herbert L. Mason 1923-6-16 459 Santa Barbara along trail to La Cumbre Peak (Santa Barbara) Comment
  UC635426  Paeonia californica H. L. Mason 1923-6-15 403 Santa Barbara Harris Grade La Purisma Range Comment
  UC635450  Dendromecon harfordii Herbert L. Mason 1925-9-25 4105 Santa Barbara along roadway through Buena Vista Canyon Santa Cruz Island Comment
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Apr 29 2014
  UC637802  Ceanothus cuneatus var. cuneatus Herbert L. Mason 1923-6-15 411 Santa Barbara La Purisima Ridge. Harros Grade Comment
  UC665546  Eastwoodia elegans Herbert L. Mason 1941-7-3 12490 Santa Barbara head of Cuyama Valley (14 mi w of Maricopa) 762 Comment
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Apr 29 2014
  UC907801  Collomia grandiflora Herbert L. Mason 1946-6-8 12848 Santa Barbara Bluff Camp Big Pine Mountain Comment
  UC907854  Navarretia hamata subsp. parviloba H. L. Mason 1923-6-15 413 Santa Barbara near Harris Station; Purisima Hills, Harris Grade Comment
  UC908163  Eriastrum densifolium subsp. elongatum Herbert L. Mason 1923-6-15 412 Santa Barbara Harris Grade; near summit Comment
  UC908644  Navarretia jaredii Herbert L. Mason 1946-6-7 12834 Santa Barbara s of Little Pine Mountain (between Camuesa Creek and Oso Creek) 762 Comment
  UC912434  Sambucus mexicana Herbert L. Mason 1923-6-16 460 Santa Barbara La Cumbre Peak Comment
  UCD130644  Cirsium occidentale var. californicum Herbert L. Mason 1946-6-7 12831 Santa Barbara between Camuesa Creek and Oso Creek south of Little Pine Mountain, Santa Barbara. 762 Comment
  UCD45068  Quercus agrifolia Herbert L. Mason 1946-6-8 12843 Santa Barbara Bluff Camp, south side of Big Pine Mountain, altitude 4500 feeet, Santa Barbara County. 1371 Comment
  UCD47622  Quercus wislizeni Herbert L. Mason 1923-6-15 402 Santa Barbara Harris Grade, Santa Barbara County. 1828 Comment
  RSA0120850  Eriastrum pluriflorum subsp. pluriflorum H. L. Mason 1941-7-3 12489 Santa Barbara Head of Cuyama Valley, fourteen miles west of Maricopa. 762 Comment
  SEINET8731332  Eriodictyon capitatum Herbert L. Mason 1947-1 Santa Barbara Comment
  UCSB44068  Melica imperfecta Mason, Renee 1980-6-5 Santa Barbara San Ysidro Canyon at end of Park Lane, Montecito; 1 1/2 mile up trail 396 Comment
  UCSB44754  Galium nuttallii subsp. nuttallii Mason, Renee 1980-6-5 Santa Barbara 1 mile up San Ysidro Canyon trail along shady, right side; San Ysidro Canyon at end of Park Lane 335 Comment
  CAS-BOT-BC206952  Pickeringia montana var. montana H. L. Mason 1921-6-21 s.n. Santa Clara Mt. Umunhum, Sierra Azule Ridge Comment
  HSC16944  Eriastrum abramsii H. L. Mason, H. K. Sharsmith 1935-5-3 8302 Santa Clara Above Arroyo Bayo Creek, Mt. Hamilton Range 610 Comment
  JEPS23915  Dodecatheon hendersonii H. L. Mason and H. A. Borthwick 1921-3-20 Santa Clara Guadalupe Canyon Comment
  SEINET5764401 Image available Chenopodium californicum H. L. Mason 1917-1 s.n. Santa Clara Stanford University 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
  UC570794  Euphorbia spathulata H. L. Mason 1932-4-17 6942 Santa Clara 1 mi e New Almaden (hill) Comment
  UC632765  Linanthus parviflorus H. L. Mason 1935-5-4 8301 Santa Clara Mount Hamilton Mount Hamilton Range Comment
  UC672244  Micropus californicus var. californicus Herbert L. Mason 1932-4-17 6957 Santa Clara near summit Pacheco Pass Comment
  UC672454  Limosella acaulis H. L. Mason 1932-4-17 6960 Santa Clara near summit of Pacheco Pass; near summit of Pacheco Pass Comment
  UC673614  Micropus californicus var. californicus Herbert L. Mason 1932-4-17 6936 Santa Clara hill 1 mi e New Almaden 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
  UC908392  Phlox gracilis Herbert L. Mason 1933-4-21 7193 Santa Clara lower slopes of Mt. Hamilton Mt. Hamilton Comment
  UC908785  Linanthus parviflorus Herbert L. Mason 1932-4-17 6943 Santa Clara New Almaden Comment
  UC912238  Cotula coronopifolia Herbert L. Mason 1932-4-17 6958 Santa Clara summit Pacheco Pass Comment
  UC963811  Navarretia cotulifolia H. L. Mason 1932-4-17 6954 Santa Clara se of Gilroy (Miller and Lux ranch) Comment
  UC964793  Eriastrum abramsii Herbert L. Mason with H. K. Sharsmith 1935-5-3 8302 Santa Clara above Arroyo Bayo Creek; Mount Hamilton Range 609 Comment
  UC971718  Linanthus ambiguus Herbert L. Mason 1933-4-21 7197 Santa Clara road above Smith's Creek (on slopes of Isabel Creek); Mount Hamilton Range Comment
  CAS-BOT-BC348410  Micropus californicus var. californicus H. L. Mason 1932-4-17 6936 Santa Clara Hill, one mile east of New Almaden Comment
  CAS-BOT-BC441271  Luzula macrantha W. Mason 1917-3-6 s.n. Santa Clara Hills back of Stanford Univ. Comment
  CAS-BOT-BC469357  Allium hyalinum H. L. Mason 1932-4-17 6948 Santa Clara Road from Uvas to Almaden Comment
  POM176895  Ribes californicum H. L. Mason, H. A. Borthwick 1921-3-20 s.n. Santa Clara [Guadalupe Canyon.] Comment
  SEINET8729321 Image available Linanthus ambiguus Herbert L. Mason 1933-1 7197 Santa Clara Road above Smith's Creek on slopes of Isabel Creek, Mount Hamilton Range Comment
  UC673532  Lepidium latipes var. latipes H. L. Mason 1932-4-17 6955 Santa Clara plains s.w. Gilroy (Miller & Lux Ranch); Miller & Lux Ranch Comment
  UC908558  Linanthus bicolor Herbert L. Mason 1943-4-15 12562 Santa Clara w side Pacheco Pass (border of Santa Clara and Merced Counties) Comment
  UC908984  Gilia clivorum Herbert L. Mason 1943-4-15 12565 Santa Clara w side Pacheco Pass w side Pacheco Pass (at border of Santa Clara and Merced Counties) Comment
  CAS-BOT-BC80663  Cupressus goveniana Herbert Louis Mason 1922-3-28 s.n. Santa Cruz Sandstone cliffs near Bonnie Doon. Comment
  POM270462  Actaea rubra subsp. arguta H. L. Mason 1927-7-31 4007 Santa Cruz Mt. Herman, Santa Cruz Mts. Comment
  RSA130591  Berberis pinnata H. L. Mason 1922-3-29 s.n. Santa Cruz Liddell Creek Road near ocean. Comment
  UC1076222  Atriplex triangularis Herbert L. Mason 1927-10-4 4137 Santa Cruz mouth Waddell Creek (Ano Nuevo Point, in marshy ground near the sea); Ano Nuevo Point, mouth of Waddell Creek Comment
  UC1083193  Lithocarpus densiflorus Herbert L. Mason 1927-7-27 3972 Santa Cruz w end Big Basin Comment
  UC1083220  Quercus wislizeni Herbert L. Mason 1929-12-1 5513 Santa Cruz Swanton Comment
  UC1101193  Rumex salicifolius var. crassus Herbert L. Mason 1927-10-4 4131 Santa Cruz Mouth of Waddell Creek Ano Nuevo Point Comment
  UC1111556  Stylocline gnaphaloides Herbert L. Mason 1947-4-25 13207 Santa Cruz near Felton; Mission Springs Comment
  UC555638  Rosa pinetorum Herbert L. Mason 1927-10-4 4128 Santa Cruz mouth of Waddell Creek Ano Nuevo Pt. Comment
  UC566814  Anthriscus caucalis Herbert L. Mason 1926-6-6 3379 Santa Cruz Felton Comment
  UC570678  Solanum douglasii H. L. Mason 1927-10-4 4124 Santa Cruz mouth of Waddell Creek, Ano Nuevo Point Waddell Creek; Ano Nuevo Point, Waddell Creek Comment
  UC570924  Tellima grandiflora Herbert L. Mason 1926-6-6 3375 Santa Cruz Felton San Lorenzo River (along San Lorenzo River) Comment
  UC571137  Geranium carolinianum H. L. Mason 1926-6-6 3366 Santa Cruz Felton, along San Lorenzo River San Lorenzo River Comment
  UC571189  Arctostaphylos andersonii Herbert L. Mason 1929-12-1 5514 a Santa Cruz between Davenport and Felton; Empire grade Comment
  UC592173  Osmorhiza berteroi Herbert L. Mason 1926-6-6 3371 Santa Cruz Felton Comment
  UC635146  Lythrum hyssopifolia Herbert L. Mason 1927-7-31 4005 Santa Cruz Santa Cruz Mountains, Mount Herman Mount Herman; Santa Cruz Mountains, Mount Herman Comment
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Jun 4 2018
  UC635411  Actaea rubra H. L. Mason 1926-6-6 3378 Santa Cruz Felton, San Lorenzo R. Comment
  UC635488  Claytonia sibirica Herbert L. Mason 1927-7-31 4010 Santa Cruz Zayante Creek; Santa Cruz Mts., Mt. Hermon Comment
  UC672168  Heterotheca grandiflora Herbert L. Mason 1927-10-4 4122 Santa Cruz Ano Nueva Pt. Mouth of Waddell Creek, Ano Nueva Pt. Comment
  UC672630  Polystichum dudleyi Herbert L. Mason 1927-7-31 4004 Santa Cruz Bean Creek Mt. Herman; Santa Cruz Mts. Comment
  UC907984  Linanthus parviflorus Herbert L. Mason 1926-6-6 3380 Santa Cruz just below Woodwardia Falls; Big Basin Comment
  UC921148  Gilia tenuiflora subsp. tenuiflora Herbert L. Mason 1947-4-25 13204 Santa Cruz Mission Springs near Felton; Mission Springs near Felton 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
  UCD47141  Quercus parvula var. shrevei Herbert L. Mason 1929-12-1 5513 Santa Cruz Swanton, Santa Cruz County. 304 Comment
  CAS-BOT-BC532729  Zigadenus fremontii H. L. Mason 1922-3-29 s.n. Santa Cruz Bonnie Doon - Davenport Road Comment
  UC570900  Boykinia occidentalis Herbert L. Mason 1926-10-25 2243 Santa Cruz edge of Woodwardia Creek Big Basin; , edge of Woodwardia Creek 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
  UC1076034  Scutellaria siphocampyloides Herbert L. Mason 1947-5-15 14752 Shasta 1 mi s of Boulder Creek (between La Moine and Dunsmuir) Comment
  UC971861  Limnanthes alba subsp. versicolor Charles T. Mason Jr. 1949-4-25 1263 Shasta along US Hwy 299 4.2 mi w Ingot 304 Comment
  CAS-BOT-BC534960  Wolffia borealis H. L. Mason 1955-6-8 14629 Shasta Bridge, W edge of Fall River Mill Comment
  POM311142  Limnanthes versicolor Charles T. Mason Jr. 1949-4-25 1258 Shasta Along U.S. Highway 299 between Redding and Bella Vista. Comment
  UC908129  Navarretia intertexta H. L. Mason 1932-5-25 A 7204 Shasta n of Redding Comment
  POM311107  Downingia bacigalupii H. L. Mason 1952-7-17 14384 Sierra 1.5 miles E of Calpine at junction of Calpine with Sierraville-Beckwourth road; Sierra Valley; Sierra Nevada. 1524 Comment
  UC1112284  Elatine heterandra Herbert L. Mason 1952-7-19 14450 Sierra pond 1.5 mi e Calpine (at junction of Calpine with Sierraville-Beckwourth rd); Sierra Valley; E of Calpine at junction of Calpine w/ Sierraville-Beckwourth road, Sierra Valley, Sierra Co. 1524 Comment
  UC1212243  Hesperolinon micranthum Herbert L. Mason 1959-5-24 14806 Sierra above Goodyear Bar (w of Downieville); Yuba River Comment
  UC965580  Gnaphalium palustre Herbert L. Mason 1952-7-19 14451 Sierra 1.5 mi e Calpine (at junction with Sierraville-Beckwourth road); Sierra Nevada 1524 Comment
  CAS-BOT-BC83242  Myosurus minimus Herbert L. Mason 1953-6-16 14551 Sierra One mile south of Beckwourth Buttes. Comment
  NY94464  Elatine gracilis H. L. Mason 1952-8-17 14494 Sierra 0.4 mile south of Little Truckee River Bridge. 1920.2 Comment
  SEINET197696  Navarretia minima Herbert L. Mason 1952-7-19 14442 Sierra 1.5 miles of Calpine at junction of Calpine with Sierraville-Beckworth road. 1524 Comment
  SEINET3399386 Image available Polygonum parryi Herbert L. Mason 1957-6-21 14709 Sierra Sierra Valley, 3 mi N of Satley 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-BC391222  Stellaria longipes subsp. longipes Herbert L. Mason 1948-7-18 13611 Siskiyou Grass Lake 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
  UC1076047  Phacelia dalesiana Herbert L. Mason 1947-5-17 14773 Siskiyou Trinity-Siskiyou county line Scott Mountain divide Comment
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Jul 5 2017
  UC1100995  Juncus nevadensis Herbert L. Mason 1948-7-18 13612 Siskiyou Grass Lake Comment
  UC1186127  Phlox speciosa subsp. occidentalis H. L. Mason 1931-5-9 5869 Siskiyou 3 mi s Weed Comment
  UC1191238  Polygonum sawatchense subsp. oblivium Herbert L. Mason 1948-7-18 13623 Siskiyou Grass Lake Comment
  UC1191240  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1948-7-18 13621 Siskiyou Grass Lake Comment
  UC1191241  Polygonum douglasii subsp. douglasii Herbert L. Mason 1948-7-17 13602 Siskiyou Eastern Grass Lake Comment
  UC1191432  Delphinium Herbert L. Mason 1948-7-18 13626 Siskiyou Grass Lake Comment
  UC1191629  Navarretia intertexta subsp. propinqua Herbert L. Mason 1948-7-17 13600 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
  UC672466  Collinsia rattanii H. L. Mason 1929-5-18 5328 Siskiyou land s of Weed (hills along Shasta Creek Canyon); Shasta Creek Canyon Comment
  UC912516  Balsamorhiza lanata Herbert L. Mason 1929-5-18 5330 Siskiyou Yreka Comment
  CAS-BOT-BC420064  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1948-7-18 13621 Siskiyou Grass Lake 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
  POM312344  Stellaria longipes H. L. Mason 1948-7-18 13611 Siskiyou Grass Lake Comment
  UC1076054  Horkelia tridentata subsp. flavescens Herbert L. Mason 1947-5-17 14763 Siskiyou on Scott Mountain raod five mi s Callahan; Scott Mountain Road Comment
  UC1083341  Erythronium hendersonii Herbert L. Mason 1931-5-9 5861 a Siskiyou Siskiyou Summit Comment
  UCD100656  Polygonum sawatchense subsp. sawatchense Herbert L. Mason 1948-7-18 13623 Siskiyou Grass Lake. Comment
  CAS-BOT-BC31400  Bolboschoenus robustus Herbert L. Mason 1945-8-16 12660 a Solano Grizzly Island, near Suisun Bay. Comment
  UC1100202  Bromus diandrus Herbert L. Mason and Malcolm A. Nobs 1949-4-27 723 Solano Suisun State Game Refuge Comment
  UC1100772  Scirpus acutus var. occidentalis Herbert L. Mason, Verne Grant 1947-6-26 13256 Solano Suisun Marsh Cordelia Slough, Suisun Marsh 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
  UC1101201  Rumex conglomeratus Herbert L. Mason and Verne Grant 1946-7-5 12912 Solano just n Vallejo (in Lake Chabot water reservoir); Lake Chabot Comment
  UC1191263  Polygonum punctatum Herbert L. Mason and Verne Grant 1947-6-26 13253 Solano Cordelia Slough Suisun Marsh Comment
  UC1191282  Rumex salicifolius var. transitorius Herbert L. Mason and Verne Grant 1947-5-14 13233 Solano Cordelia Creek 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
  UC1191910  Stachys albens Herbert L. Mason, Verne Grant 1947-6-26 13266 Solano Cordelia Slough Suisan Marsh Comment
  UC1191911  Stachys albens Herbert L. Mason 1945-8-16 12653 Solano near Suisun Bay; Grizzly Island Comment
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1
  UC1191943  Oenanthe sarmentosa Herbert L. Mason 1945-8-16 12657 Solano Grizzly Island near Suisun Bay; Grizzly Island Comment
  UC1192191  Pluchea odorata var. odorata Herbert L. Mason 1945-8-16 12651 Solano near Suisun Bay; Grizzly Island Comment
  UC555378  Trifolium variegatum var. melananthum Herbert L. Mason 1928-5-4 4514 Solano Greene Valley Comment
  UC566853  Sanicula crassicaulis H. L. Mason 1928-5-4 4509 Solano Greene Valley Comment
  UCD113421  Rosa californica Herbert L. Mason; Verne Grant 1947-6-26 13261 Solano Cordelia Slough, Suisun Marsh. Comment
  UCD130902  Cotula coronopifolia Herbert L. Mason; Verne Grant 1947-6-26 13241 Solano Cordelia Slough, Suisun Marsh. Comment
  UCD138310  Ruppia cirrhosa Herbert L. Mason 1923-10-6 770 Solano Suisun Marsh. Comment
  UCD58517  Bromus diandrus Herbert L. Mason; Malcolm A. Nobs 1949-4-27 723 Solano Suisun State Game Refuge. Comment
  UCD97636  Atriplex prostrata Herbert L. Mason; Verne Grant 1947-6-26 13239 Solano Cordelia Slough, Suisun Marsh. Comment
  CAS-BOT-BC419414  Persicaria punctata Herbert L. Mason 1945-8-17 12664 Solano North of Rio Vista Comment
  POM312477  Atriplex semibaccata H. L. Mason 1945-8-16 12658 Solano Grizzly Island, near Suisun Bay Comment
  POM312846  Schoenoplectus maritimus H. L. Mason 1945-8-16 12660 -a Solano Grizzly Island, near Suisun Bay Comment
  UC1100537  Cyperus eragrostis Herbert L. Mason 1945-8-17 12663 Solano n. Rio Vista Comment
  UC1191566  Lythrum californicum Herbert L. Mason, Verne Grant 1947-6-26 13263 Solano Suisun Marsh, Coredelia Slough Suisun Marsh; , Coredelia Slough Comment
  UC1192139  Cotula coronopifolia herbert l. mason, malcolm a. nobs 1949-4-27 724 Solano Suisun State Game Refuge Comment
  UC1192148  Ambrosia psilostachya Herbert L. Mason 1945-8-17 12668 Solano 1.5 mi n of Rio Vista Comment
  UC971819  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-3-27 1136 Solano 2 mi nw Rio Vista Junction (along State Hwy 12) 7 Comment
  UCD138356  Stuckenia pectinata Herbert L. Mason; Verne Grant 1946-7-5 12903 Solano Lake Chabot water reservoir just north of Vallejo. Comment
  UCD141083  Cyperus eragrostis Herbert L. Mason 1945-8-17 12663 Solano North of Rio Vista. Comment
  CAS-BOT-BC111897  Rhynchospora capitellata Herbert L. Mason 1946-7-4 12881 Sonoma Pitkin Marsh; between Santa Rosa and Forestville Comment
  CAS-BOT-BC139551  Agrostis gigantea Herbert L. Mason 1946-7-4 12888 Sonoma Pitkin Marsh, between Santa Rosa and Forestville. 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-BC91004  Calycanthus occidentalis H. L. Mason 1934-4-28 8067 Sonoma Jensen Ranch, head of Dohrman Creek. Comment
  CAS-BOT-BC91286  Umbellularia californica H. L. Mason 1925-11-26 2492 Sonoma Banks of Russian River, Monte Rio. Comment
  JEPS16345  Cordylanthus tenuis subsp. capillaris H. L. Mason 1946-7-4 12900 Sonoma 2 mi e Occidental; ; E of Occidental, Sonoma Co. Comment
  JEPS17413  Packera H. L. Mason 1934-4-28 8060 Sonoma 2 or 3 mi w Healdsburg (headwaters of creek); Jensen Ranch, Dorman Creek Comment
  JEPS4858  Castilleja uliginosa Herbert L. Mason 1946-7-4 12892 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  NY601785  Penstemon heterophyllus var. purdyi H. L. Mason 1934-4-28 8071 Sonoma Head of Dohrman Creek, Jensen's Ranch Comment
  POM313170  Deschampsia cespitosa subsp. cespitosa H. L. Mason 1946-7-4 12885 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  UC1061663  Pinus muricata Herbert L. Mason 1928-4-8 4278 Sonoma Fort Ross Comment
  UC1076469  Arceuthobium campylopodum H. L. Mason 1928-4-8 4285 Sonoma Fort Rosa Comment
  UC1093862  Logfia gallica Herbert L. Mason 1947-5-4 13210 Sonoma near Kenwood; Hood Mountain Comment
  UC1093930  Heterotheca oregona var. oregona Herbert L. Mason Nov 26 1925-Nov 27 1925 2493 Sonoma Monte Rio, along Russian River Russian River Comment
  UC1093939  Logfia filaginoides Herbert L. Mason 1947-5-4 13211 Sonoma near Kenwood (burned area of Hood Mountain); Hood Mountain Comment
  UC1100154  Damasonium californicum Herbert L. Mason 1928-4-13 4325 Sonoma near Petaluma Petaluma Comment
  UC1100573  Carex lemmonii Herbert L. Mason 1946-7-4 12889 Sonoma Pitkin Marsh; between Santa Rosa and Forestville Comment
  UC1191804  Trichostema laxum Herbert L. Mason 1946-7-4 12897 Sonoma 2 mi E of Occidental Comment
  UC1212402  Hesperolinon spergulinum Herbert L. Mason 1946-7-4 12901 Sonoma 2 mi e Occidental; Inner North Coast Ranges Comment
  UC555362  Trifolium wormskioldii H. L. Mason 1930-6-1 5648 Sonoma mouth of Gualala River Comment
  UC567067  Cupressus sargentii Mason 1932-7-19 123 Sonoma 3/5 mi nw Los Alamos School; Santa Rosa Quadrangle 571 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
  UC570922  Tellima grandiflora H. L. Mason Jun 1930 5666 Sonoma mouth of Gualala River Comment
  UC571127  Geranium core-core H. L. Mason 1928-4-7 4276 Sonoma mouth of Russian River, Jenner Jenner; Russian River, Jenner Comment
  UC581495  Viola adunca H. L. Mason 1928-4-8 4279 Sonoma Fort Ross Comment
  UC581533  Viola adunca H. L. Mason June 1930 5663 Sonoma mouth of Gualala River Comment
  UC634742  Rhododendron macrophyllum H. L. Mason 1928-7-11 4896 Sonoma 2 mi n of Fort Ross Comment
  UC634860  Monardella villosa subsp. franciscana H. L. Mason 1928-7-10 4883 Sonoma Near Ocean, Jenner Comment
  UC634967  Ranunculus muricatus H. L. Mason 1928-4-7 4275 Sonoma Jenner Russian River (mouth of river) Comment
  UC634968  Ranunculus muricatus H. L. Mason 1928-4-13 4324 Sonoma near Petaluma Comment
  UC635014  Eriogonum nudum var. oblongifolium H. L. Mason 1928-7-10 4885 Sonoma Jenner Comment
  UC635186  Stachys chamissonis H. L. Mason June 1930 5652 Sonoma mouth Gualala River Comment
  UC635500  Calycanthus occidentalis H. L. Mason 1934-4-28 8067 Sonoma head of Dohrman Creek Dohrman Creek (Jensen Ranch) 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
  UC635512  Ceanothus griseus H. L. Mason 1928-4-8 4295 Sonoma coast two miles N of Fort Ross Comment
  UC635622  Paxistima myrsinites H. L. Mason 1934-4-28 8079 Sonoma Dohrman Creek at head of Jensen's Ranch Comment
  UC673454  Triphysaria versicolor subsp. faucibarbata H. L. Mason 1928-4-8 4297 Sonoma in fields near Sebastopol Comment
  UC908781  Linanthus jepsonii Herbert L. Mason 1928-4-13 4334 Sonoma Reibli School, near springs Comment
  UC908783  Linanthus jepsonii Herbert L. Mason 1928-4-13 4337 Sonoma Reibli School Comment
  UC912509  Wyethia angustifolia Herbert L. Mason 1934-4-28 8073 Sonoma head Dohrman's Creek; Jensen's Ranch Comment
  UCD125875  Trichostema laxum Herbert L. Mason 1946-7-4 12897 Sonoma 2 miles east of Occidental. Comment
  CAS-BOT-BC31352  Bolboschoenus robustus Herbert L. Mason; Verne Grant 1946-8-28 13076 B Sonoma Mouth of Tolay Creek. Comment
  CAS-BOT-BC444984  Montia fontana H. L. Mason 1926-3-20 2752 Sonoma Along railroad right-of-way, south of Calistoga Comment
  CAS-BOT-BC456160  Zannichellia palustris Herbert L. Mason 1928-4-13 4323 Sonoma Near Petaluma Comment
  POM312980  Zannichellia palustris H. L. Mason 1928-4-13 4323 Sonoma Near Petaluma. Comment
  UC907821  Navarretia leucocephala subsp. bakeri Herbert L. Mason 1934-4-28 8094 Sonoma highway between Healdsburg and Santa Rosa 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
  UCD48317  Navarretia leucocephala subsp. bakeri Herbert L. Mason 1934-4-28 8094 Sonoma In fields; highway between Healdsburg and Santa Rosa, Sonoma County, California. 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
  UC1100456  Setaria pumila Herbert L. Mason and S. Galen Smith 1948-7-30 8261 Stanislaus ca. 7 mi. s. Modesto (on Crow's Landing rd.) Comment
  UC1100567  Setaria parviflora Herbert L. Mason and S. Galen Smith 1948-7-30 8262 Stanislaus ca. 7 mi. s. Modesto (on Crow's Landing Rd.) Comment
  UC1100664  Cyperus esculentus Herbert L. Mason and S. Galen Smith 1948-8-17 8344 Stanislaus 4 mi. w. Turlock; San Joaquin Valley 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
  UC1101341  Myosurus minimus Herbert L. Mason 1952-5-18 14288 Stanislaus on Hilmar Road e of San Joaquin River (about 1 mi from junction with Crows Landing Road); Hilmar Road Comment
  UC1191956  Eryngium racemosum Herbert L. Mason and S. Galen Smith 1948-8-17 8338 Stanislaus ca. 2 mi. e. Westley (near Grayson) Comment
  UC1738080  Myosurus minimus H. L. Mason 1956-4-30 14274 B-1 Stanislaus 5 mi NE of Crows Landing (on Crows Landing Rd.) Comment
  UC1738081  Myosurus minimus H. L. Mason 1956-4-30 14274 B-2 Stanislaus 5 mi NE of Crows Landing (on Crows Landing Rd.) Comment
  UC570881  Jepsonia heterandra Herbert L. Mason 1929-4-7 5189 Stanislaus bluffs about ten mi above Oakdale Comment
  UC672469  Collinsia sparsiflora var. collina H. L. Mason 1929-4-7 5178 Stanislaus about 10 mi e Oakdale (Sierra Nevada foothills); Sierra Nevada Comment
  UC724505  Eriogonum covilleanum H. L. Mason 1935-5-9 Stanislaus near head of Arroyo del Puerto; Mount Hamilton Range, Red Mountains 487 Comment
  UC907973  Allophyllum gilioides subsp. gilioides H. L. Mason 1935-5-9 Stanislaus near headwaters of Arroyo del Puerto (Red Mts.); Inner S. Coast Ranges, Mt. Hamilton Range, Red Mts. 426 Comment
  UC971823  Limnanthes douglasii subsp. rosea Charles T. Mason Jr. 1948-5-1 1163 Stanislaus 0.9 mi w Stanislaus County line (on s side of State Hwy 120 between Keystone and Knights Ferry) 106 Comment
  CAS-BOT-BC114280  Cyperus esculentus Herbert L. Mason; Stanley Galen [S. Galen] Smith 1948-7-30 8258 Stanislaus About 7 mi. S of Modesto on Crow's Landing Road. Comment
  CAS-BOT-BC29260  Acroptilon repens Herbert L. Mason 1942-7-8 12553 Stanislaus 2 miles east of Newman, at junction of Patterson-Stevinson roads 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
  POM312429  Myosurus minimus subsp. apus H. L. Mason 1952-4-26 14275 Stanislaus 3 miles east of the San Joaquin River; Hilmar Road near Crows Landing Road Comment
  UC545808  Eriophyllum jepsonii Herbert L. Mason 1935-5-8 10008 Stanislaus Patterson Road twenty mi from mouth Arroyo del Puerto; Mount Hamilton Range 533 Comment
  UC724704  Argemone munita H. L. Mason 1935-5-9 Stanislaus Mount Hamilton Range, Arroyo del Puerto Arroyo del Puerto; Mount Hamilton Range, Arroyo del Puerto 365 Comment
  UCD128509  Acroptilon repens Herbert L. Mason 1942-7-8 12553 Stanislaus two miles east of Newman, at junction of Patterson-Stevinson roads. Comment
  CAS-BOT-BC114216  Cyperus strigosus Herbert L. Mason 1945-9-18 12702 Sutter Sutter By-pass near bridge on Yuba City-Knight's Landing Highway. Comment
  CAS-BOT-BC203386  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-BC28181  Bolboschoenus fluviatilis Herbert L. Mason 1945-9-18 12710 Sutter Sutter By-pass, N of Knight's Landing. Comment
  SEINET200023  Cyperus eragrostis Herbert L. Mason 1945-9-18 12704 Sutter Sutter bypass near bridge on Yuba City-Knight's Landing Highway. Comment
  UC1100461  Setaria pumila Herbert L. Mason 1945-9-18 12712 Sutter Pennington Rd. between Live Oak and Pennington Comment
  UC1100670  Cyperus erythrorhizos Herbert L. Mason and S. Galen Smith 1949-7-29 1101 Sutter rice fields in Sutter Bypass just s. Marysville 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
  UCD116343  Hibiscus lasiocarpos var. occidentalis Herbert L. Mason 1945-9-19 12726 Sutter West Butte Road on the east side of Butte Creek. Comment
  UCD126761  Physalis lancifolia Herbert L. Mason 1945-9-19 12727 Sutter West Butte Road on the east side of Butte Creek. Comment
  UC1076042  Streptanthus drepanoides Herbert L. Mason 1947-5-18 14794 Tehama w Paskenta; Paskenta Grade, Barrett Springs Comment
  UC1199899  Triteleia hyacinthina Herbert L. Mason 1958-4-3 14899 a Tehama on Paynes Creek Road ca 4 mi e Red Bluff; Paynes Creek Comment
  UC1076045  Antennaria dimorpha Herbert L. Mason 1947-5-17 14777 Trinity summit of, (Trinity-Siskiyou County line) Scott Mountain Grade Comment
  UC634824  Darlingtonia californica Herbert L. Mason 1926-4-19 2887 Trinity Comment
  UCD138414  Hastingsia alba Herbert L. Mason 1950-7-15 14051 Trinity Scott Mountain. Comment
  CAS-BOT-BC516033  Narthecium californicum Herbert L. Mason 1950-7-15 14053 Trinity Summit of grade, Scott Mountain Comment
  HSC16997  Navarretia capillaris H. L. Mason 1950-7-15 14049 Trinity Summit of grade, Scott Mtn. Comment
  SEINET10463489  Campanula scouleri Mason 1950-7-15 Mason 14059 Trinity SUMMIT OF GRADE, SCOTT MTN. HILLSLOPES Comment
  UC1076025  Viola purpurea subsp. integrifolia Herbert L. Mason 1947-5-17 14767 Trinity Scott Mountain Divide Comment
  CAS-BOT-BC417034  Sedella pumila H. L. Mason 1938-4-14 11703 Tulare Rocky Hill, east of Exeter. 304 Comment
  UC1076451  Pentagramma pallida Herbert L. Mason 1929-3-23 5093 Tulare 3 mi above Springville (Middle Tule River) 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
  UC1179047  Stylocline gnaphaloides Herbert L. Mason 1935-5-1 8369 Tulare river n Kernville; Sequoia National Forest, Kern River Comment
  UC1179105  Hesperevax acaulis var. acaulis Herbert L. Mason 1938-4-14 11714 Tulare 4 mi e Exeter; Rocky Hill Comment
  UC555476  Cercis occidentalis H. L. Mason 1929-3-23 5078 Tulare 3 mi above Springville; Middle Tule River Comment
  UC590980  Iris munzii H. L. Mason 1938-8-6 12071 a Tulare 1 mi below Milo; North Fork of the 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
  UC634685  Tetrapteron graciliflorum H. L. Mason 1929-3-23 5082 Tulare three mi above Springville; Middle Tule River Comment
  UC907869  Gilia modocensis Herbert L. Mason 1935-5-1 8363 Tulare Kern River n Kernville (Sequoia National Forest); , Kern River Comment
  UC908836  Gilia modocensis Herbert L. Mason 1935-5-1 8355 Tulare Kern River n Kernville (Sequoia National Forest); , Kern River Comment
  UC908892  Gilia sinuata Herbert L. Mason 1935-5-1 8356 Tulare n Kernville (Kern River, Sequoia National Forest); Sequoia National Forest, Kern River Comment
  UC962103  Gilia ochroleuca subsp. bizonata H. L. Mason 1935-5-1 8360 Tulare Kern River n Kernville; Sequoia National Forest, Kern River Comment
  UC963805  Gilia ochroleuca subsp. bizonata Herbert L. Mason 1935-5-1 8358 Tulare n Kernville (Kern River, Sequoia National Forest); Sequoia National Forest, Kern River Comment
  UCD137995  Alisma triviale Herbert L. Mason; Lawrence W. Reinecke 1937-7-22 11610 Tulare Swamp Lake, west of Hetch Hetchy, Yosemite National Park. Comment
  POM257265  Camissonia campestris subsp. campestris H. L. Mason 1929-3-23 5089 Tulare Three miles above Springville, Middle Tule River. Comment
  UC908749  Linanthus montanus Herbert L. Mason 1938-5-10 11817 Tulare near Auckland Ranch (road sw of Badger); General Grant National Park Comment
  UCD94569  Vulpia microstachys var. pauciflora Herbert L. Mason 1938-4-14 11715 Tulare 4 miles east of Exeter. Comment
  CAS-BOT-BC110206  Carex buxbaumii H. L. Mason 1938-7-11 11942 Tuolumne Yosemite National Park. South island in Swamp Lake, west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC110207  Carex buxbaumii H. L. Mason 1938-7-10 11915 Tuolumne Yosemite National Park. South island in Swamp Lake, west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC110209  Carex buxbaumii H. L. Mason 1938-7-9 11901 Tuolumne Yosemite National Park. Swamp Lake, west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC113543  Eleocharis bella Herbert L. Mason 1940-7-6 12313 Tuolumne Miguel Meadows; west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC126861  Dodecatheon alpinum Herbert L. Mason 1922-8-25 349 Tuolumne Dana fork - Tuolumne River; Tuolumne Meadows, Yosemite National Park Comment
  CAS-BOT-BC135926  Brasenia schreberi Herbert L. Mason 1936-7-15 11246 Tuolumne Margin of pool 1/2 mile west of Mather 1371 Comment
  CAS-BOT-BC140232  Ivesia santolinoides Herbert L. Mason 1938-7-28 12039 Tuolumne Macomb Ridge east of Tilden Lake; Sierra Nevada, Yosemite National Park 3048 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-BC163624  Clarkia biloba subsp. biloba H. L. Mason 1925-6-27 2123 Tuolumne Hog Ranch, near Mather 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-BC215683  Lycopus uniflorus Herbert L. Mason; L. W. Reinecke 1937-7-22 11589 Tuolumne Swamp Lake, just south of Miguel Meadows, just west of Hetch Hetchy Dam, Yosemite National Park 1584 Comment
  CAS-BOT-BC231294  Polemonium pulcherrimum H. L. Mason 1936-7-24 11328 Tuolumne White Mountain, Mount Conness Range 3505 Comment
  CAS-BOT-BC265315  Penstemon davidsonii var. davidsonii Herbert L. Mason 1936-7-23 11291 Tuolumne Slope of Mount Conness 3505 Comment
  CAS-BOT-BC267234  Potamogeton robbinsii Herbert L. Mason 1958-8-9 14847 Tuolumne Yosemite National Park. Swamp Lake, W of Hetch Hetchy 1584 Comment
  CAS-BOT-BC294817  Erigeron breweri var. breweri Herbert L. Mason 1938-7-22 11977 Tuolumne Sierra Nevada, Yosemite National Park. Beehive, north of Hetch Hetchy Dam 1981 Comment
  CAS-BOT-BC297198  Erigeron coulteri Herbert L. Mason 1937-7-30 14816 Tuolumne Saurian Crest above Mary Lake, Yosemite National Park, Sierra Nevada 3352 Comment
  CAS-BOT-BC348645  Micropus californicus var. californicus H. L. Mason 1936-4-13 11090 Tuolumne Italian Bar Comment
  CAS-BOT-BC349854  Lactuca tatarica subsp. pulchella Herbert L. Mason 1938-8-1 12069 Tuolumne Sierra Nevada, Yosemite National Park. Meadow in Tiltill Valley 1676 Comment
  CAS-BOT-BC402595  Dicentra uniflora Herbert L. Mason 1938-7-28 12024 Tuolumne Sierra Nevada, Yosemite National Park. Macomb Ridge east of Tilden Lake 3048 Comment
  CAS-BOT-BC413676  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-BC444377  Lewisia pygmaea H. L. Mason 1936-7-23 11283 Tuolumne Slopes of Mount Conness, Sierra Nevada Comment
  CAS-BOT-BC47840  Ceanothus cordulatus Herbert L. Mason 1925-8-1 2211 Tuolumne Tuolumne Grove Big Trees Comment
  CAS-BOT-BC77324  Antennaria media Herbert L. Mason 1936-7-24 11344 Tuolumne White Mountain, Conness Range 3596 Comment
  CAS-BOT-BC9342  Carex feta Herbert L. Mason 1958-8-9 14854 Tuolumne Sierra Nevada, Yosemite National Park. Swamp Lake, west of Hetch Hetchy Dam 1584 Comment
  JEPS21924  Erigeron linearis Herbert L. Mason 1923-8-9 743 Tuolumne ridge e of 2nd Gaylor Lake (near Tioga Mines); Yosemite National Park Comment
  JEPS23180  Castilleja lacera Herbert L. Mason 1940-7-6 12318 Tuolumne w of Hetch Hetchy Dam; Yosemite National Park, Miguel Meadows 1584 Comment
  JEPS23181  Gratiola ebracteata Herbert L. Mason 1940-7-7 12330 Tuolumne w Hetch Hetchy Dam (Miguel Meadow, Yosemite National Park); Yosemite National Park, w of Hetch Hetchy Dam, Miguel Meadow 1584 Comment
  JEPS26948  Packera werneriifolia H. L. Mason 1922-8-2 341 Tuolumne Mt. Dana Sierra Nevada Mountains, Yosemite National Park 3657 Comment
  POM256411  Bulbostylis capillaris H. L. Mason 1938-7-6 11858 Tuolumne Between Swamp Lake and Miguel Meadow. 1646 Comment
  POM264399  Allophyllum integrifolium H. L. Mason 1941-7-12 12479 Tuolumne Miguel Meadow, west of Hetch Hetchy Valley, Yosemite National Park Comment
  POM270508  Aquilegia pubescens H. L. Mason 1923-7-31 678 Tuolumne Dana Fork, Sierra Nevada Mtns Comment
  RSA23336  Carex cusickii H. L. Mason 1938-7-10 11923 Tuolumne South island in Swamp Lake, west of Hetch Hetchy, 1585 Comment
  SBBG28059  Allophyllum integrifolium H. L. Mason 1941-7-12 12479 Tuolumne Miguel Meadow, W of Hetch Hetchy Valley Comment
  SBBG30032  Rotala ramosior H. L. Mason 1936-7-15 11256 Tuolumne 0.5 mi W of Mather 1371 Comment
  SEINET186015  Cyperus squarrosus Herbert L. Mason 1938-7-10 11903 Tuolumne Yosemite National Park ; Miguel Meadow W of Hetch-Hetchy. 1585 Comment
  SEINET197688  Navarretia divaricata H. L. Mason 1941-7-12 12478 Tuolumne Yosemite National Park; Miguel Meadows, Yosemite National Park Comment
  SEINET244132 Image available Arnica cordifolia H. L. Mason 1923-8-6 718 Tuolumne Dana Fork Comment
  SEINET5764341 Image available Chenopodium botrys Herbert L. Mason 1925-1 s.n. Tuolumne Mather Comment
  UC1014774  Dodecatheon jeffreyi H. L. Mason 1922-8-1 339 Tuolumne Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC1025282  Draba breweri Herbert L. Mason 1936-7-24 11336 A Tuolumne White Mountain Sierra Nevada, Conness Range Comment
  UC1039508  Kelloggia galioides Herbert L. Mason 1923-7-17 600 Tuolumne Mather 1432 Comment
  UC1039528  Galium sparsiflorum Herbert L. Mason 1938-7-10 11921 a Tuolumne s shore Yosemite National Park, Swamp Lake Comment
  UC1039539  Dodecatheon alpinum H. L. Mason 1923-8-6 714 Tuolumne Yosemite National Park , Yosemite National Park (Sierra Nevada Mountains) Comment
  UC1039560  Dodecatheon jeffreyi H. L. Mason 1922-8-1 Tuolumne Parsons Lodge Sierra Nevada Mountains, Yosemite National Park (Tuolumne Meadows) Comment
  UC1039786  Castilleja nana H. L. Mason 1923-8-2 705 Tuolumne headwaters of the Unicorn Creek Sierra Nevada, Yosemite National Park, Tuolumne River (a tributary of the Tuolumne River, low ridge w of lakes) Comment
  UC1039789  Castilleja miniata H. L. Mason 1925-7-29 2186 Tuolumne Hog Ranch, Mather; Mather Comment
  UC1039999  Saxifraga aprica H. L. Mason 1936-7-27 11393 Tuolumne Gaylor Lakes w of Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1056298  Carex feta Herbert L. Mason 1939-7-11 12116 Tuolumne marsh 1/2 mi below Swamp Lake Comment
  UC1056435  Silene californica H. L. Mason 1936-3-20 11003 Tuolumne three mi above Tuolumne; above Tuolumne Comment
  UC1056961  Juncus macrandrus Herbert L. Mason 1936-7-9 11896 Tuolumne w of Hetch Hetchy; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
Read comments
Jul 13 2007
  UC1056966  Polygonum douglasii subsp. douglasii Herbert L. Mason 1936-7-27 11391 Tuolumne w Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1056969  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1936-7-10 11180 a Tuolumne se White Wolf; Yosemite National Park, Lukens Lake 2560 Comment
  UC1056974  Montia chamissoi Herbert L. Mason 1936-7-27 11384 Tuolumne Gaylor Lakes w of Tioga Pass (Yosemite National Park); Sierra Nevada, , Gaylor Lakes 3200 Comment
  UC1076302  Orobanche fasciculata Herbert L. Mason 1925-6-24 2107 Tuolumne Mather. Comment
  UC1076327  Arceuthobium campylopodum Herbert L. Mason 1924-6-26 1101 Tuolumne Ridge n of Middle Fork near Mather Sierra Nevada, Yosemite National Park Comment
  UC1076394  Symphoricarpos mollis var. acutus Herbert L. Mason 1925-7-15 2160 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
  UC1076512  Calocedrus decurrens H. L. Mason 1923-7-13 589 Tuolumne Hog.Ranch (Mather) Sierra Nevada Mountains, Yosemite National Park 1432 Comment
  UC1076535  Phacelia racemosa Herbert L. Mason 1938-7-22 11961 Tuolumne n Hetch Hetchy; Sierra Nevada, Yosemite National Park, Beehive 1996 Comment
  UC1076557  Delphinium hansenii subsp. hansenii Herbert L. Mason 1938-7-7 11874 Tuolumne ridge e Swamp Lake (between lake and Hetch Hetchy); Sierra Nevada, Yosemite National Park 1676 Comment
  UC1076562  Stellaria obtusa Herbert L. Mason 1938-7-22 11960 Tuolumne n of Hetch Hetchy (Beehive); Sierra Nevada, Yosemite National Park, Beehive 1996 Comment
  UC1077088  Mentzelia dispersa Herbert L. Mason 1938-7-11 11936 Tuolumne w Hetch Hetchy (Margin of lake at gravel pit, Miguel Meadow); Yosemite National Park 1584 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
  UC1077104  Monardella odoratissima subsp. glauca Herbert L. Mason 1938-7-28 12037 Tuolumne 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
  UC1081574  Ribes lasianthum Herbert L. Mason 1936-7-10 11186 Tuolumne se White Wolf (Lukens Lake); Sierra Nevada, Yosemite National Park 2560 Comment
  UC1083121  Dicentra uniflora Herbert L. Mason 1936-7-27 11385 Tuolumne w of Tioga Pass (Gaylor Lakes); Sierra Nevada, Yosemite National Park 3200 Comment
  UC1083138  Erigeron linearis Herbert L. Mason 1936-7-27 11372 Tuolumne w of Tioga Pass; Sierra Nevada, Yosemite National Park, Gaylor Lakes 3200 Comment
  UC1083182  Quercus kelloggii H. L. Mason 1925-6-27 2121 Tuolumne Hog Ranch, Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC1083201  Arenaria kingii var. glabrescens Herbert L. Mason 1938-7-26 12019 Tuolumne s Jack Main Meadows; Sierra Nevada, Yosemite National Park, Andrews Peak 2438 Comment
  UC1083206  Kalmia polifolia subsp. microphylla Herbert L. Mason and L. W. Reinecke 1937-7-22 11585 Tuolumne just s of Miguel Meadows (just w of Hetch Hetchy, Swamp Lake); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1083309  Juniperus grandis Herbert L. Mason 1923-7-29 670 Tuolumne Lamberts Dome Sierra Nevada Mountains Comment
  UC1093855  Chenopodium botrys Herbert L. Mason 1925-8-6 2210 Tuolumne Mather; on railroad balast Comment
  UC1093873  Rhamnus rubra Herbert L. Mason 1938-7-25 12003 Tuolumne s base Mahan Peak (Deep Lake, Jack Main Canyon, Yosemite National Park, Sierra Nevada); Sierra Nevada, Yosemite National Park, Deep Lake 2438 Comment
  UC1093878  Hieracium horridum Herbert L. Mason 1938-7-28 12036 Tuolumne e of Tilden Lake; Sierra Nevada, Yosemite National Park, Macomb Ridge 2438 Comment
  UC1093883  Ivesia santolinoides Herbert L. Mason 1938-7-28 12039 Tuolumne e of Tilden Lake (Macomb Ridge); Sierra Nevada, Yosemite National Park 3048 Comment
  UC1093908  Spiranthes stellata Herbert L. Mason 1938-7-7 11877 Tuolumne w Hetch Hetchy; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1093990  Athyrium filix-femina var. cyclosorum Herbert L. Mason 1925-7-30 2189 Tuolumne ne of Mather (Smith Peak Trail); Sierra Nevada Comment
  UC1093991  Cheilanthes covillei Herbert L. Mason 1925-7-31 2202 Tuolumne Mather; Sierra Nevada Comment
  UC1099859  Potamogeton gramineus Herbert L. Mason 1937-7-22 11624 Tuolumne Swamp Lakes just s of Miguel Meadows (and w of Hetch Hetchy Dam); Yosemite National Park 1584 Comment
  UC1100430  Carex aurea Herbert L. Mason, Lawrence W. Reinecke 1937-7-22 11586 Tuolumne just s Miguel Meadows (w of Hetch Hetchy Dam); Yosemite National Park, Swamp Lakes 1584 Comment
  UC1100431  Carex aurea Herbert L. Mason, Lawrence W. Reinecke 1937-7-21 11558 Tuolumne just nw Hetch Hetchy Dam; Yosemite National Park, Miguel Meadows Comment
  UC1100694  Eriophorum gracile Herbert L. Mason and Lawrence W. Reinecke 1937-7-22 11579 Tuolumne e. Hetch Hetchy dam (Swamp Lakes, just s. of Miguel Meadows); Yosemite Nat'l Park, Swamp Lakes Comment
  UC1101063  Luzula comosa var. laxa Herbert L. Mason and Lawrence W. Reinecke 1937-7-22 11608 Tuolumne Yosemite National Park. Swamp Lakes, just west of Hetch Hetchy Dam and south of Miguel Meadow 1584 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
  UC1101462  Utricularia gibba Herbert L. Mason 1938-7-6 11854 Tuolumne w. Hetch Hetchy Dam (just s. of Miguel Meadows, Swamp Lake, Yosemite Nat'l Park); 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
  UC1102953  Carex echinata subsp. echinata Herbert L. Mason 1958-8-9 14876 Tuolumne w Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1102958  Cyperus squarrosus Herbert L. Mason 1958-8-6 14898 a Tuolumne w. Hetch Hetchy Dam (at Swamp Lake); Sierra Nevada, Yosemite Nat'l Park, Swamp Lake 1584 Comment
  UC1102963  Juncus macrandrus Herbert L. Mason 1958-8-6 Tuolumne w side Hetch Hetchy Dam (meadow at Swamp Lake); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1102977  Alisma plantago-aquatica Herbert L. Mason 1958-8-9 14882 Tuolumne w of Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1105286  Muhlenbergia filiformis Herbert L. Mason 1938-7-10 11911 Tuolumne w Hetch Hetchy; Sierra Nevada, Yosemite National Park, Swamp Lake, South Isl 1645 Comment
  UC1108815  Poa wheeleri Herbert L. Mason 1936-7-24 11331 Tuolumne White Mt; Sierra Nevada, Conness Range Comment
  UC1108817  Poa secunda subsp. secunda Herbert L. Mason 1938-7-25 12009 Tuolumne deep lake at e base of Mahan Peak; Sierra Nevada, Yosemite Nat'l Park Comment
  UC1108832  Calamagrostis purpurascens Herbert L. Mason 1938-7-28 12047 Tuolumne n Tiltill Mountain; Yosemite National Park, Macomb Ridge 3017 Comment
  UC1110532  Festuca minutiflora Herbert L. Mason 1936-7-24 11335 Tuolumne White Mountain Sierra Nevada, Conness Range Comment
  UC1111021  Dodecatheon jeffreyi H. L. Mason 1922-7-16 308 Tuolumne Hog Ranch Sierra Nevada Mountains, Yosemite National Park (Mather) Comment
  UC1111560  Limnanthes alba subsp. versicolor Herbert L. Mason 1938-7-22 11978 Tuolumne Vernon Lake Trail n Hetch Hetchy; Sierra Nevada, Yosemite National Park 2072 Comment
  UC1111561  Mimulus layneae Herbert L. Mason 1938-7-22 11964 Tuolumne n Hetch Hetchy (Vernon Lake Trail); Sierra Nevada, Yosemite National Park 2072 Comment
  UC1111566  Drosera rotundifolia Herbert L. Mason 1938-8-1 12065 Tuolumne Tiltill Valley Sierra Nevada, Yosemite National Park (sphagnum bog above meadow, Rancheria Mountain Trail) 1676 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
  UC1178865  Castilleja lineariloba Herbert L. Mason 1940-7-6 12318 Tuolumne w of Hetch Hetchy Dam (Miguel Meadows); Yosemite National Park, Miguel Meadows 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
  UC1178903  Eriogonum incanum Herbert L. Mason 1938-7-28 12032 Tuolumne n Tiltill Mountain (Macomb Ridge); Sierra Nevada, Yosemite National Park, Macomb Ridge 3017 Comment
  UC1178910  Delphinium polycladon Herbert L. Mason and L. W. Reinecke 1937-7-28 14822 Tuolumne Mary Lake Sierra Nevada, Yosemite National Park 2895 Comment
  UC1178911  Delphinium glaucum Herbert L. Mason and L. W. Reinecke 1936-7-28 14823 Tuolumne w side Mary Lake; Sierra Nevada, Yosemite National Park 2926 Comment
  UC1178956  Polygonum douglasii subsp. douglasii Herbert L. Mason 1925-7-31 2206 Tuolumne Mather Sierra Nevada Comment
  UC1186142  Navarretia divaricata Herbert L. Mason 1938-7-6 11860 Tuolumne e of Miguel Meadow (dry ridge between Swamp Lake Miguel Meadow); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1186147  Phlox diffusa Herbert L. Mason 1938-7-25 12000 Tuolumne e base Mahan Peak; Sierra Nevada, Yosemite National Park, Deep Lake Comment
  UC1191153  Dodecatheon alpinum Herbert L. Mason 1937-8-1 14841 Tuolumne Twin Lakes trail Sierra Nevada, , Twin Lakes Trail (Yosemite National Park) 2743 Comment
  UC1191177  Saxifraga aprica Herbert L. Mason 1937-7-24 14835 Tuolumne n of Hetch Hetchy Dam (Beehive); Sierra Nevada, Yosemite National Park, Beehive 2133 Comment
  UC1191185  Cheilanthes gracillima Herbert L. Mason Tuolumne Jack Main Canyon; Sierra Nevada, Yosemite Nat'l Park 2286 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
  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
  UC1195915  Symphyotrichum spathulatum Herbert L. Mason 1958-8-9 14896 Tuolumne w of, (meadow at Swamp Lake) Hetch Hetchy Dam; Sierra Nevada, Yosemite National Park, Swamp Lake 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
  UC1199828  Piperia transversa Herbert L. Mason 1937-7-22 11619 Tuolumne just s Miguel Meadows (just w of Hetch Hetchy Dam); Sierra Nevada, Yosemite National Park, Swamp Lake 1584 Comment
  UC1199836  Aquilegia formosa Herbert L. Mason 1937-7-28 148221 Tuolumne Mary Lake Sierra Nevada, Yosemite National Park 2926 Comment
  UC1199848  Lotus oblongifolius var. oblongifolius Herbert L. Mason 1937-7-22 11599 Tuolumne s of Miguel Meadows (just w of Hetch Hetchy Dam); Sierra Nevada, Yosemite National Park, Swamp Lakes 1584 Comment
  UC1199850  Dodecatheon jeffreyi H. L. Mason 1922-7-16 307 Tuolumne Lodge Meadow Sierra Nevada Mountains, Yosemite National Park (Mather) Comment
  UC1199851  Dodecatheon alpinum Herbert L. Mason 1925-8-11 2220 Tuolumne White Wolf Comment
  UC1199859  Dodecatheon jeffreyi H. L. Mason 1923-7-28 656 Tuolumne White Wolf Sierra Nevada Mountains, Yosemite National Park 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
  UC555508  Potentilla fruticosa Herbert L. Mason 1923-8-9 744 Tuolumne ridge e second lake (Gaylor Lakes); , ridge e of second lake Comment
  UC559955  Boechera divaricarpa H. L. Mason 1936-7-23 11282 Tuolumne Mount Conness Sierra Nevada 3352 Comment
  UC565522  Stephanomeria virgata subsp. pleurocarpa Herbert L. Mason 1926-7-27 2176 Tuolumne Mather Comment
  UC565524  Hieracium triste H. L. Mason 1923-8-3 707 Tuolumne w of Unicorn Creek; Yosemite National Park, Tuolumne Meadows Comment
  UC565591  Penstemon newberryi var. newberryi Herbert L. Mason 1923-7-21 631 Tuolumne Hetch Hetchy Valley - Canyon Ranch Comment
  UC566917  Centaurium venustum H. L. Mason 1923-7-21 638 Tuolumne Hetch Hetchy Sierra Nevada Mountains, Yosemite National Park Comment
  UC566927  Asclepias speciosa H. L. Mason 1923-7-13 591 Tuolumne Hog.Ranch Mather 1432 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
  UC570870  Lithophragma bolanderi Herbert L. Mason 1923-7-12 580 Tuolumne Mather Comment
  UC570977  Ribes nevadense H. L. Mason 1925-7-16 2173 Tuolumne Hog Ranch Mather Comment
  UC570978  Ribes montigenum Herbert L. Mason 1923-8-2 703 Tuolumne headwaters of Unicorn Creek, w shore of upper Elizabeth Lake Elizabeth Lake, Unicorn Creek Comment
  UC571118  Sclerolinon digynum H. L. Mason 1925-6-28 2130 Tuolumne Hog Ranch Sierra Nevada Mountains, Yosemite National Park (Mather) 1432 Comment
  UC581506  Viola adunca H. L. Mason 1923-7-9 579 Tuolumne Mather; Sierra Nevada Mountains, Yosemite National Park Comment
  UC581509  Viola lobata subsp. lobata H. L. Mason 1925-7-30 2199 Tuolumne Smith Peak Trail ne of Mather; Smith Peak Trail Comment
  UC592144  Streptanthus tortuosus Herbert L. Mason 1925-7-9 2151 Tuolumne Mather 1432 Comment
  UC595050  Nemophila spatulata H. L. Mason 1938-7-15 11959 Tuolumne Tamarack Flat , Tamarack Flat (Yosemite National Park) 1950 Comment
  UC599113  Carex echinata subsp. echinata H. L. Mason 1938-7-10 11922 Tuolumne w Hetch Hetchy (south island in Swamp Lake); Yosemite National Park 1584 Comment
  UC599115  Carex filifolia var. erostrata H. L. Mason 1938-7-7 11875 Tuolumne ridge e Swamp Lake (between Swamp Lake and Hetch Hetchy); Yosemite National Park 1676 Comment
  UC599121  Carex heteroneura H. L. Mason 1938-7-30 12056 Tuolumne South end of Tiltill Mountain, Yosemite National Park 2590 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
  UC599129  Carex congdonii H. L. Mason 1938-7-28 12046 Tuolumne e Tilden Lake; Yosemite National Park, Macomb Ridge 3048 Comment
  UC599131  Carex raynoldsii H. L. Mason 1938-7-26 12021 Tuolumne Meadows Jack Main; Yosemite National Park, Andrew Peak 2438 Comment
  UC599135  Carex hassei H. L. Mason 1938-7-9 11895 Tuolumne w Hetch Hetchy; Yosemite National Park, Swamp Lake 1584 Comment
  UC599136  Carex feta H. L. Mason 1938-7-9 11893 Tuolumne w Hetch Hetchy; Yosemite National Park, Swamp Lake 1584 Comment
  UC599139  Carex cusickii H. L. Mason 1938-7-10 11923 Tuolumne w Hetch Hetchy (South island in Swamp Lake); Yosemite National Park, Swamp Lake, South Island 1584 Comment
  UC632747  Luzula comosa var. laxa H. L. Mason 1938-7-9 11892 Tuolumne Yosemite National Park. Swamp Lake, west of Hetch Hetchy 1584 Comment
  UC632750  Eriophorum gracile H. L. Mason 1938-7-10 11913 Tuolumne w. Hetch Hetchy dam (south island in Swamp Lake); Yosemite Nat'l Park, Swamp Lake 1584 Comment
  UC632752  Bulbostylis capillaris H. L. Mason 1938-7-11 11934 Tuolumne w of Hetch Hetchy; Miguel Meadow 1584 Comment
  UC632754  Eleocharis bella Herbert L. Mason 1938-7-11 11930 Tuolumne W of Hetch Hetchy (Miguel Meadow); Yosemite National Park 1584 Comment
  UC632761  Lotus oblongifolius var. oblongifolius H. L. Mason 1938-7-7 11864 Tuolumne w of Hetch Hetchy; Sierra Nevada, Yosemite National Park, 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
  UC634541  Salix planifolia subsp. planifolia H. L. Mason 1923-7-30 672 Tuolumne Lyell Fork - branch of Tuolumne R. Comment
  UC634543  Salix planifolia subsp. planifolia H. L. Mason 1922-7-31 337 Tuolumne Lyell Fork of Tuolumne R. 2438 Comment
  UC634667  Circaea alpina subsp. pacifica H. L. Mason 1923-7-21 632 Tuolumne Hetch Hetchy Comment
  UC634668  Circaea alpina subsp. pacifica H. L. Mason 1925-7-30 2191 Tuolumne Smith Peak Trail from Mather Comment
  UC634782  Oxypolis occidentalis H. L. Mason 1925-8-6 2208 Tuolumne near Mather (in bogs) Comment
  UC634820  Vitis californica Herbert L. Mason 1925-6-29 2138 Tuolumne Lake Eleanor 1219 Comment
  UC635077  Eriogonum roseum H. L. Mason 1925-7-29 2180 Tuolumne Mather Comment
  UC635258  Allium campanulatum H. L. Mason 1923-7-20 619 Tuolumne near Carl Inn (Ackerson Meadows); Sierra Nevada Mountains, Yosemite National Park Comment
  UC635328  Claytonia parviflora subsp. parviflora H. L. Mason 1925-7-27 2177 Tuolumne Hog Ranch, Mather; Mather Comment
  UC635614  Eschscholzia caespitosa H. L. Mason 1923-6-30 301 Tuolumne roadside above Oakland Recreation Camp at South Fork 1066 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
  UC641693  Selaginella watsonii H. L. Mason 1936-7-24 11354 Tuolumne White Mt.; Sierra Nevada, Mt. Conness Range Comment
  UC641703  Salix petrophila H. L. Mason 1936-7-23 11300 Tuolumne Mt. Conness alpine slopes Mt. Conness; Sierra Nevada Comment
  UC641962  Luzula spicata H. L. Mason 1936-7-23 11276 Tuolumne alpine slopes se of summit Mount Conness; Sierra Nevada, se of summit Mount Conness 3505 Comment
  UC641993  Eriogonum ovalifolium var. nivale H. L. Mason 1936-7-23 11285 Tuolumne alpine slopes of Mount Conness Sierra Nevada, Mount Conness Comment
  UC642674  Lewisia glandulosa H. L. Mason 1936-7-23 11283 Tuolumne alpine slopes of Mount Conness Sierra Nevada, Mount Conness Comment
  UC642757  Ribes cereum H. L. Mason 1936-7-24 11353 Tuolumne White Mountain Sierra Nevada, Mount Conness Range 3505 Comment
  UC642771  Calyptridium umbellatum H. L. Mason 1936-7-24 11337 Tuolumne Mount Conness Range, White Mountain White Mountain; Sierra Nevada, Mount Conness Range, White Mountain Comment
  UC642895  Boechera howellii H. L. Mason 1936-7-24 11323 Tuolumne White Mountain Mount Conness Range 3505 Comment
  UC672345  Phacelia quickii H. L. Mason 1924-5-29 1024 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park Comment
  UC672487  Cordylanthus tenuis subsp. tenuis H. L. Mason 1925-7-30 2193 Tuolumne ne Mather (Smith Peak Trail) Comment
  UC672510  Veronica scutellata H. L. Mason 1925-7-4 2147 Tuolumne Mather Comment
  UC672534  Mimulus microphyllus H. L. Mason 1923-7-13 593 Tuolumne Hog Ranch Mather Comment
  UC672624  Botrychium multifidum H. L. Mason 1925-7-30 2196 Tuolumne Smith Peak Trail from Mather Comment
  UC673327  Potentilla drummondii Herbert L. Mason 1923-8-8 736 Tuolumne 0.5 mi from mouth Moraine Creek (Dana Fork Tuolumne River); Sierra Nevada, Yosemite Natl Park, Dana Fork Tuolumne R Comment
  UC673328  Potentilla drummondii Herbert L. Mason 1923-8-21 749 Tuolumne near Gaylor Lakes (Dana Fork Tuolumne River); Sierra Nevada, Yosemite Natl Park, Dana Fork Tuolumne R Comment
  UC673374  Lilium pardalinum H. L. Mason 1922-7-19 314 Tuolumne Mather Sierra Nevada Mountains, Yosemite National Park (Lodge Meadow) 1432 Comment
  UC673494  Dodecatheon jeffreyi H. L. Mason 1922-7-16 307 Tuolumne Lodge Meadow bog Sierra Nevada Mountains, Yosemite National Park (Mather) Comment
  UC712299  Lupinus lepidus var. lobbii H. L. Mason 1936-7-23 11290 Tuolumne alpine slopes Mount Conness (Sierra Nevada); , alpine slopes of Mount Conness 3505 Comment
  UC712598  Erigeron algidus Herbert L. Mason 1936-7-24 11343 Tuolumne alpine slopes of White Mountain; Sierra Nevada, Mount Conness Range, White Mountain 3413 Comment
  UC714182  Polemonium eximium Herbert L. Mason 1936-7-30 11448 Tuolumne Shepherds Crest Sierra Nevada, , Shepherds Crest (Mount Conness Range) 3474 Comment
  UC714371  Boechera lyallii Herbert L. Mason 1936-7-24 11351 Tuolumne White Mountain Mount Conness Range 3505 Comment
  UC714412  Erigeron compositus Herbert L. Mason 1936-7-26 11382 Tuolumne moraine flat near Gaylor Lakes; Sierra Nevada 3048 Comment
  UC714453  Senecio fremontii var. occidentalis H. L. Mason 1936-7-30 11447 Tuolumne Shepherds Crest Sierra Nevada, Mount Conness Range Comment
  UC908147  Navarretia tagetina Herbert L. Mason 1936-5-15 11104 Tuolumne Yosemite Junction Comment
  UC912218  Antennaria argentea Herbert L. Mason 1925-6-27 2119 Tuolumne near, (Hog Ranch) Mather Comment
  UC912376  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
  UC912499  Erigeron elmeri H. L. Mason 1923-8-4 709 Tuolumne Lamberts Dome Yosemite Nationa Park, Lamberts Dome Comment
  UC912636  Holcus lanatus Herbert L. Mason 1925-7-31 2205 Tuolumne Hog Ranch Mather (Mather) Comment
  UC912687  Selaginella watsonii Herbert L. Mason 1936-7-21 11260 Tuolumne w end Tenaya Lake Comment
  UC936166  Minuartia rubella H. L. Mason 1936-7-23 11299 Tuolumne Alpine Slopes Mount Conness Comment
  UC964732  Lindernia dubia var. anagallidea Herbert L. Mason 1925-7-16 2175 Tuolumne Mather Comment
  UC971707  Navarretia divaricata H. L. Mason 1941-7-12 12478 Tuolumne Miguel Meadows Yosemite National Park Comment
  UC985662  Alisma plantago-aquatica Herbert L. Mason 1925-6-24 2100 Tuolumne Mather Comment
  UC985664  Alisma plantago-aquatica Herbert L. Mason and Lawrence W. Reinecke 1937-7-22 11610 Tuolumne w Hetch-Hetchy; Yosemite National Park, Swamp Lake Comment
  UCD131019  Coreopsis stillmanii Herbert L. Mason 1936-3-21 11019 Tuolumne 4 miles north of Coulterville. Comment
  UCD140311  Carex feta Herbert L. Mason; Lawrence W. Reinecke 1937-7-21 11561 Tuolumne Miguel Meadows, just northwest of Hetch Hetchy Dam, Yosemite National Park. 1524 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
  UCD53002  Agrostis oregonensis H. L. Mason 1939-7-28 11971 Tuolumne Vernon Lake Trail, north and east of Hetch-Hetchy, Yosemite National Park. Comment
  UCD57543  Calamagrostis purpurascens H. L. Mason 1938-7-28 12407 Tuolumne Yosemite National Park, north of Tiltill Mtn., Macomb Ridge. 3017 Comment
  UCD61488  Elymus elymoides H. L. Mason 1936-7-27 11389 Tuolumne Gaylor Lakes, west of Tioga Pass, Yosemite Natl. Park. Comment
  UCD91603  Poa wheeleri H. L. Mason 1936-7-23 11301 Tuolumne Alpine slopes of Mt. Conness, Yosemite National Park. Comment
  UCD91605  Poa wheeleri H. L. Mason 1936-7-24 11332 Tuolumne White Mountain. Comment
  UCD91700  Poa secunda subsp. secunda H. L. Mason 1938-7-28 12034 Tuolumne Yosemite National Park. Macomb Ridge, N of Tiltill Mtn. Comment
  UCD93737  Trisetum spicatum H. L Mason 1936-7-24 11342 Tuolumne White Mountain. Comment
  UCSB46427  Cyperus squarrosus Mason, H. 1938-8-1 Tuolumne Tiltill Valley, Yosemite National Park 1676 Comment
  UCSB72202  Hypericum anagalloides Mason, H. 1938-7-10 Tuolumne South Island Swamp Lake Comment
  YM-YOSE64691  Trifolium variegatum var. pauciflorum H. L. Mason 1938-7-22 11975 Tuolumne VERNON LAKE TRAIL NORTH OF HETCH HETCHY 2072 Comment
  YM-YOSE65334  Navarretia divaricata Harry L. Mason 1938-7-6 11860 Tuolumne RIDGE BETWEEN SWAMP LAKE AND MIGUEL MEADOW 1676 Comment
  YM-YOSE65389  Carex buxbaumii H. L. Mason 1938-7-11 11942 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND Comment
  YM-YOSE65396  Carex brevipes H. L. Mason 1938-7-25 11997 Tuolumne DEEP LAKE. SOUTH BASE OF MAHAN PEAK. JACK MAIN CANYON 2438 Comment
  YM-YOSE65577  Eriophorum gracile H. L. Mason 1938-7-10 11913 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
  CAS-BOT-BC113784  Dulichium arundinaceum Herbert L. Mason 1937-7-22 11606 Tuolumne Swamp Lake, west of Hetch Hetchy. 1584 Comment
  CAS-BOT-BC159024  Phacelia ramosissima var. ramosissima Herbert L. Mason 1937-7-26 14828 Tuolumne Maham Peak (north of Hetch Hetchy Dam), Yosemite National Park 2438 Comment
  CAS-BOT-BC287152  Coreopsis stillmanii Herbert L. Mason 1936-3-21 11019 Tuolumne Four miles N of Coulterville Comment
  CAS-BOT-BC295512  Erigeron linearis Herbert L. Mason 1936-7-27 11372 Tuolumne Sierra Nevada, Yosemite National Park. Gaylor Lakes west of Tioga Pass 3200 Comment
  CAS-BOT-BC312980  Hieracium triste Herbert L. Mason 1936-7-30 14819 Tuolumne Sierra Nevada, Yosemite National Park. Tilden Lake 2895 Comment
  CAS-BOT-BC31968  Carex multicaulis H. L. Mason 1938-7-8 11882 Tuolumne North of Swamp Lake, Hetch Hetchy drainage, Sierra Nevada. 1615 Comment
  CAS-BOT-BC402896  Eschscholzia caespitosa H. L. Mason 1923-6-30 301 Tuolumne Above the Oakland Recreation Camp at South Fork 1066 Comment
  CAS-BOT-BC453807  Potamogeton natans Herbert L. Mason 1938-7-11 11944 Tuolumne Sierra Nevada, Yosemite National Park. South island in Swamp Lake, west of Hetch Hetchy 1584 Comment
  CAS-BOT-BC48677  Ceanothus cordulatus Herbert L. Mason 1925-8-11 2211 Tuolumne Big oak Flat road near Tuolumne Grove Comment
  CAS-BOT-BC77775  Woodsia scopulina Herbert L. Mason 1938-7-26 12016 Tuolumne Andrew Peak, south of Jack Main Meadows 2438 Comment
  POM256512  Dodecatheon jeffreyi H. L. Mason 1936-7-10 197 Tuolumne Glandular. Lukens Laken. 2561 Comment
  POM256515  Sclerolinon digynum H. L. Mason 1925-6-28 2130 Tuolumne Tuolumne county: Hog Ranch, Mather. 1433 Comment
  POM256592  Eleocharis bella H. L. Mason 1938-7-11 11930 Tuolumne Miguel Meadow, west of Hetch Hetchy, Yosemite National Park 1585 Comment
  POM257278  Clarkia rhomboidea H. L. Mason 1925-7-4 2150 Tuolumne Mather. Comment
  POM270300  Thalictrum sparsiflorum H. L. Mason 1923-8-1 680 Tuolumne Lyell Fork, Sierra Nevada Mtns, Tuolumne County Comment
  POM312542  Polygonum amphibium var. stipulaceum H. L. Mason, L M Reinecke 1937-7-22 11616 Tuolumne Yosemite Nat'l Park: Swamp Lake, just south of Miguel Meadows, just west of Hetch Hetchy Dam 1585 Comment
  SEINET11753105  Dulichium arundinaceum H. L. Mason 1958-1 14848 Tuolumne Sierra Nevada, Yosemite National Park, Swamp Lake, W of Hetch Hetchy Dam 1585 Comment
  SEINET199762  Claytonia parviflora subsp. parviflora H. L. Mason 1936-3-13 11084 Tuolumne Italian Bar Comment
  SEINET4170662 Image available Hemicarpha occidentalis H. L. Mason 1938-7-10 11904 Tuolumne Miguel Meadow, W. of Hetch-Hetchy; Yosemite National Park 1585 Comment
  SEINET6647416  Drosera rotundifolia H. L. Mason, L. W. Reinecke 1937-7-22 11578 Tuolumne Yosemite National Park, Swamp Lake, just south of Miguel Meadaows in the hills just west of Hetch Hetchy. 1585 Comment
  UC1039561  Dodecatheon jeffreyi H. L. Mason 1923-8-21 759 Tuolumne Dana Fork - Tuolumne Meadows Sierra Nevada Mountains, Yosemite National Park (Yosemite National Park) Comment
  UC1056432  Limnanthes alba Herbert L. Mason 1936-3-20 11017 Tuolumne three mi above Tuolumne; Sierra Nevada, Yosemite National Park Comment
  UC1081536  Valeriana californica Herbert L. Mason 1936-7-23 11281 Tuolumne Alpine slopes se of summit of Mt. Conness; Sierra Nevada, Yosemite National Park 3505 Comment
  UC1081566  Arenaria kingii var. glabrescens Herbert L. Mason 1936-7-9 11172 Tuolumne s White Wolf; Sierra Nevada, Yosemite National Park 2743 Comment
  UC1093956  Lupinus benthamii Herbert L. Mason 1936-3-20 11016 Tuolumne three mi above Tuolumne (Yosemite National Park); Sierra Nevada, , above Tuolumne Comment
  UC543748  Asarum lemmonii Herbert L. Mason 1925-8-11 2213 Tuolumne Big Oak Flat Road near Tuolumne Grove Comment
  UC632807  Nemophila heterophylla H. L. Mason 1936-3-24 11014 Tuolumne three mi above Tuolumne; above Tuolumne Comment
  UC635452  Dicentra chrysantha H. L. Mason 1922-6-30 302 Tuolumne between Groveland and Mather (Hetch Hetchy Railroad tracks, above Oakland Recreation Camp); Sierra Nevada Mountains, Yosemite National Park 1066 Comment
  UC642896  Boechera howellii H. L. Mason 1936-7-22 11264 Tuolumne Mount Conness Range Sierra Nevada 3352 Comment
  UC673492  Dodecatheon subalpinum Herbert L. Mason 1922-7-25 322 Tuolumne on Tioga Road between Yosemite Creek bridge and Porcupine Flat; Yosemite National Park, btw Yosemite Creek br and Porcupine Comment
  UC673556  Corallorhiza striata H. L. Mason 1922-7-3 303 Tuolumne Big Oak Flat road just n Tuolumne Grove Comment
  YM-YOSE63681  Mentzelia dispersa H. L. Mason 1938-7-11 11936 Tuolumne MIGUEL MEADOWS. SWAMP LAKE RESEARCH RESERVE. Comment
  YM-YOSE65201  Arabis sparsiflora var. arcuata H. L. Mason 1938-7-7 11870 Tuolumne SWAMP LAKE RESEARCH RESERVE. BRECCA RIDGE SE OF SWAMP LAKE Comment
  YM-YOSE65293  Drosera rotundifolia H. L. Mason 1938-7-6 11853 Tuolumne SWAMP LAKE RESEARCH RESERVE Comment
  YM-YOSE65382  Carex athrostachya H. L. Mason 1938-8-1 12071 Tuolumne MEADOW IN TILTILL VALLEY 1676 Comment
  YM-YOSE65388  Carex buxbaumii H. L. Mason 1938-7-9 11901 Tuolumne SWAMP LAKE RESEARCH RESERVE 1584 Comment
  YM-YOSE65554  Carex whitneyi H. L. Mason 1938-7-30 12055 Tuolumne SOUTH END TILTILL MT. 2590 Comment
  YM-YOSE65555  Carex whitneyi H. L. Mason 1938-7-30 12055 Tuolumne SOUTH END TILTILL MT. 2590 Comment
  YM-YOSE65562  Cyperus inflexus H. L. Mason 1938-7-10 11903 Tuolumne SWAMP LAKE RESEARCH RESERVE. GRAVEL PIT LAKE. MIGUEL MEADOW Comment
  YM-YOSE65582  Eleocharis engelmannii H. L. Mason 1938-7-11 11931 Tuolumne MIGUEL MEADOWS. SWAMP LAKE RESEARCH RESERVE Comment
  YM-YOSE65588  Hemicarpha occidentalis H. L. Mason 1938-7-10 11904 Tuolumne SWAMP LAKE RESEARCH RESERVE. GRAVEL PIT LAKE. MIGUEL MEADOW Comment
  YM-YOSE65589  Hemicarpha H. L. Mason 1938-7-10 11905 Tuolumne SWAMP LAKE RESEARCH RESERVE. GRAVEL PIT LAKE. MIGUEL MEADOW Comment
  YM-YOSE66248  Orthocarpus linearilobus Harry L. Mason 1936-7-11 11938 Tuolumne SWAMP LAKE RESEARCH RESERVE, NEAR MIGUEL MEADOW 1554 Comment
  YM-YOSE66617  Agrostis rossiae H. L. Mason 1938-7-10 11909 Tuolumne SWAMP LAKE RESEARCH RESERVE. SOUTH ISLAND. SWAMP LAKE Comment
  YM-YOSE66933  Glyceria borealis H. L. Mason 1938-7-9 11899 Tuolumne SWAMP LAKE RESEARCH RESERVE. SWAMP LAKE Comment
  A346750  Prunus virginiana var. demissa H. L. Mason 1921-5-14 Unknown Haywards Comment
  A362002  Arctostaphylos pechoensis var. viridissima H. L. Mason 1938-5-7 11776 Unknown Burton Mesa Comment
  A362003  Arctostaphylos pechoensis var. viridissima H. L. Mason 1938-5-8 11803 Unknown vicinity of the summit of Figueroa Mountain Comment
Read comments
Feb 19 2015
  A362728  Kalmia microphylla H. L. Mason 1938-7-6 11852 Unknown Sierra Nevada, Swamp Lake, Yosemite National Park Comment
  A367049  Mimulus aurantiacus var. grandiflorus H. L. Mason 1921-5-7 Unknown Carmel River, Rancho del Monte Comment
  A378180  Rhamnus alnifolia H. L. Mason 1939-8-3 12200 Unknown Squaw Valley 7 miles northeast of Tahoe City 1889 Comment
  GH257640  Meconella denticulata H. L. Mason 1935-4-21 8269 Unknown Carmel Canyon Comment
  GH345641  Horkelia parryi H. L. Mason 1932-4-24 6978 Unknown Three miles south of Ione Comment
  GH345643  Horkelia parryi H. L. Mason 1933-5-29 7253 Unknown two miles south of Ione 152 Comment
  GH346051  Rosa nutkana H. L. Mason 1928-7-14 4904 Unknown East fork of the Eel River near Garberville Comment
  GH346914  Malus fusca H. L. Mason 1932-7-21 7101 Unknown Big Lagoon Comment
  GH347765  Polygala cornuta H. L. Mason 1926-5-29 3288 Unknown Donner Pass Road near Alta Comment
  GH347960  Ptelea crenulata H. L. Mason 1928-5-4 4521 Unknown Granite Canyon southwest of Coloma Comment
  GH349747  Ceanothus leucodermis H. L. Mason 1930-4-21 5601 Unknown Priest Valley Comment
  GH350134  Arctostaphylos canescens H. L. Mason 1926-1-2 2612 Unknown near summit of Mountain. Toll House Canyon, Mount St. Helena Comment
  GH350160  Arctostaphylos columbiana H. L. Mason 1932-7-21 7104 Unknown Trinidad Head Comment
  GH350294  Arctostaphylos glandulosa H. L. Mason 1938-5-8 11803 Unknown vicinity of summit of Figueroa Mountain Comment
  GH356067  Cupressus macrocarpa H. L. Mason 1934-10-21 10023 Unknown Point Lobos, Monterey County Comment
  GH357949  Cupressus goveniana var. pygmaea H. L. Mason 1934-9-3 8147 Unknown White plains three miles east of Mendocino City, Mendocino County Comment
  GH360275  Melica californica var. nevadensis P. H. Raven H. L. Mason, R. Ornduff, et. al. 1957-4-28 10706 Unknown 3.3 miles from Kelsey on raod to Placerville Comment
  GH362159  Arctostaphylos sensitiva H. L. Mason 1927-7-31 3997 Unknown hills south of Mount Herman Comment
  GH362608  Cassiope mertensiana subsp. californica H. L. Mason 1928-7-5 4877 Unknown Tioga Mines Comment
  GH363196  Vaccinium ovatum H. L. Mason 1934-3-31 8054 Unknown La Purrissima Ridge, east of Lompoc Comment
  GH364715  Mucronea californica H. L. Mason 1923-6-23 544 Unknown Carmel River, ten miles above Carmel Comment
  GH365643  Cordylanthus maritimus subsp. palustris H. L. Mason 1930-06-01 - 1930-07-01 5670 Unknown Dillons Beach Comment
  GH366282  Astragalus hornii H. L. Mason 1932-4-3 6915 Unknown Five miles east of Lost Hills Comment
  GH378802  Boechera depauperata H. L. Mason 1936-7-28 11401 A Unknown Dana Plateau, Sierra Nevada 3657 Comment
  GH378832  Boechera paupercula H. L. Mason 1936-7-24 11351 Unknown White Mountain, Conness Range, Sierra Nevada 3505 Comment
  GH378968  Cardamine californica var. integrifolia H. L. Mason 1925-1-18 1180 Unknown Hills north of San Rafael Comment
  GH381136  Saxifraga californica H. L. Mason 1926-3-7 2702 Unknown Mt. Diablo Comment
  GH384821  Styrax redivivus H. L. Mason 1931-5-9 5876 Unknown Pitt River Comment
  GH400308  Hyptis emoryi H. L. Mason 1928-3-10 4231 Unknown Hidden Springs Canyon, Coachella Mountains Comment
  GH400827  Pogogyne douglasii H. L. Mason 1930-06-01 - 1930-07-01 5683 Unknown Four miles east of Middletown Comment
  GH401012  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Unknown Trail between Juniper Camp and Deer Flat, Mount Diablo Comment
  GH402740  Eriodictyon californicum H. L. Mason 1925-6-27 2124 Unknown Hog Ranch, Mather Comment
  GH420030  Plagiobothrys chorisianus H. L. Mason 1927-4-23 3692 Unknown Between Pescadero Creek and La Honda 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
  GH424012  Bulbostylis capillaris H. L. Mason 1938-7-6 11858 Unknown Dry ridge between Swamp Lake and Miguel Meadow 1645 Comment
  GH424280  Lomatium ciliolatum var. hooveri H. L. Mason 1947-3-30 13164 a Unknown 0.5 mile east of Lake County line on Williams-Lower Lake Highway, western Colusa County Comment
  GH424386  Eriophorum gracile H. L. Mason 1938-7-10 11913 Unknown South island in Swamp Lake, west of Hetch Hetchy 1584 Comment
  GH424612  Amsinckia douglasiana H. L. Mason 1932-3-19 6815 Unknown Road from Mountain House to Midway, west of Tracy Comment
  GH424701  Cryptantha circumscissa H. L. Mason 1932-4-1 6868 Unknown One mile east of Lancaster, Mojave Desert Comment
  GH425153  Ceanothus purpureus H. L. Mason 1931-3-8 Unknown Betw. Santa Rosa and Guerneville, 8 mi. w. of Santa Rosa, on ridge beyond slough, near Vine Hill School Comment
  GH427010  Eriophyllum lanatum var. grandiflorum H. L. Mason 1932-4-24 6976 Unknown Mokulmne River Bridge, Comanche Comment
  GH427297  Monolopia congdonii H. L. Mason 1932-4-3 6912 Unknown Five miles east of Lost Hills Comment
  GH427298  Monolopia congdonii H. L. Mason 1835-4-30 9315 Unknown Five miles west of Bakersfield Comment
  GH91332  Navarretia pauciflora H. L. Mason 1945-5-12 12583 Unknown Playa strewn with obsidion rubble and surrounded by chaparral, 5 miles north of Lower Lake Comment
  GH91333  Navarretia pauciflora H. L. Mason 1945-5-13 12583 Unknown Playa strewn with obsidion rubble and surrounded by chaparral, Lakeport highway 5 miles north of Lower Lake Comment
  GH362740  Kalmia microphylla H. L. Mason 1923-7-5 4874 Unknown Tioga Mines Comment
  GH385227  Linanthus grandiflorus H. L. Mason 1940-5-5 12275 Unknown Los Banos Creek Comment
  GH385884  Galium bolanderi H. L. Mason 1936-7-15 11253 Unknown 1/2 mile west of Mather 1371 Comment
  GH400411  Mentha arvensis H. L. Mason 1925-7-4 2146 Unknown Mather Comment
  GH400808  Pogogyne serpylloides H. L. Mason 1924-5-13 1014 Unknown Ridge south of Claremont Canyon, Berkeley Hills Comment
  GH427091  Eriophyllum jepsonii H. L. Mason 1935-5-8 10008 Unknown Patterson Road, twenty miles from mouth of Arroyo del Puerto, Mount Hamilton Range 533 Comment
  SEINET12899422 Image available Potamogeton nodosus H. L. Mason 1921-1 Unknown Comment
  SEINET12902603 Image available Egeria densa H. L. Mason 1938-1 12075 Unknown Comment
  SEINET4462102  Erysimum capitatum var. angustatum H. L. Mason 1933-1 Unknown Comment
  SEINET8125239 Image available Carex cusickii H. L. Mason 1938-1 11923 Unknown Comment
  SEINET8130302 Image available Alnus incana H. L. Mason 1939-1 12172 Unknown Comment
  SEINET8159127 Image available Nasturtium officinale H. L. Mason 1941-1 12424 Unknown Comment
  UCD102512  Ribes speciosum H. L. Mason 1920-5-1 s.n. Unknown County and location unknown. Comment
  UC565595  Keckiella ternata var. septentrionalis Herbert L. Mason 1923-6-18 511 Ventura Red Reef Canyon; Topatopa Mts. Comment
  UC912515  Balsamorhiza deltoidea Herbert L. Mason 1923-6-18 509 Ventura Red Reef Canyon Topatopa Mountains Comment
  RSA67335  Gilia minor H. L. Mason 1949-4-25 14014 Ventura Cuyama Valley, on Ojai-Maricopa road at Ventura - Santa Barbara cos. line. Comment
  UC1039600  Phoradendron Herbert L. Mason 1923-6-17 474 Ventura Ojai Comment
  UC1076294  Orobanche bulbosa Herbert L. Mason 1923-6-18 477 Ventura above Ojai (Topatopa Mountains, Sisar Canyon); Topatopa Mountains, Sisar Canyon Comment
  UC1051439  Symphyotrichum subulatum Herbert L. Mason 1955-8-12 14646 Yolo between Winters and Madison Comment
  UC571183  Iris macrosiphon Herbert L. Mason 1927-5-11 3724 Yuba near Dobbins 457 Comment
  UC634899  Dicentra formosa Herbert L. Mason 1927-5-11 3734 Yuba near Bullards Bar; Yuba River Canyon 609 Comment
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  CAS-BOT-BC402378  Dicentra formosa subsp. formosa Herbert L. Mason 1927-5-11 3734 Yuba Near Bullards Bar 609 Comment



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