Search Results — 2000 specimen records retrieved (1455 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=MARIN; Source=All; Collector=Howell;   
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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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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC100972  Cirsium hydrophilum var. vaseyi John Thomas Howell 1944-6-18 19631 Marin Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC100974  Cirsium hydrophilum var. vaseyi John Thomas Howell 1938-6-5 13897 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC100975  Cirsium hydrophilum var. vaseyi John Thomas Howell 1942-7-12 17032 Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC10177  Delphinium hesperium John Thomas Howell 1941-5-25 16234 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC10178  Delphinium hesperium John Thomas Howell 1944-5-27 19503 Marin Summit Ave ridge, Mt. Tamalpais Comment
  CAS-BOT-BC102017  Bidens laevis John Thomas Howell 1945-10-14 21546 Marin Olema Marshes Comment
  CAS-BOT-BC104420  Quercus X subconvexa John Thomas Howell 1952-5-15 28314 Marin Serpentine at S end of Tiburon Peninsula Comment
  CAS-BOT-BC105261  Quercus kelloggii John Thomas Howell 1940-9-22 s.n. Marin Phoenix lake, Mt. Tamalpais Comment
  CAS-BOT-BC105654  Corethrogyne filaginifolia John Thomas Howell 1939-6-18 14767 Marin Near Mud Lake Comment
  CAS-BOT-BC105655  Corethrogyne filaginifolia John Thomas Howell 1939-6-18 14767 Marin Near Mud Lake Comment
  CAS-BOT-BC105656  Corethrogyne filaginifolia John Thomas Howell 1944-5-14 19454 Marin Pt. Reyes Station Comment
  CAS-BOT-BC105830  Cirsium andrewsii John Thomas Howell 1947-6-18 23275 Marin Dillons Beach Comment
  CAS-BOT-BC105837  Cirsium andrewsii John Thomas Howell 1946-6-30 22129 Marin Marsh east of Rodeo Lagoon Comment
  CAS-BOT-BC105841  Cirsium andrewsii John Thomas Howell 1939-7-2 14818 Marin Elk Valley Comment
  CAS-BOT-BC105842  Cirsium andrewsii John Thomas Howell 1947-6-18 23275 Marin Ocean bluffs, Dillons Beach Comment
  CAS-BOT-BC105843  Cirsium andrewsii John Thomas Howell 1930-6-22 5321 Marin Marsh land in valley above Rodeo Lagoon Comment
  CAS-BOT-BC107311  Salix lasiolepis var. bigelovii John Thomas Howell 1946-6-30 22159 Marin Rodeo Lagoon Comment
  CAS-BOT-BC111311  Schoenoplectus acutus var. occidentalis John Thomas Howell 1946-9-15 23007 Marin Hidden Lake Comment
  CAS-BOT-BC111313  Schoenoplectus acutus var. occidentalis John Thomas Howell 1945-8-5 21367 Marin Stinson Beach Comment
  CAS-BOT-BC111315  Schoenoplectus acutus var. occidentalis John Thomas Howell 1946-7-4 22184 Marin East of Aurora School at Sonoma Co. line. Comment
  CAS-BOT-BC111316  Schoenoplectus acutus var. occidentalis John Thomas Howell 1946-6-13 22031 Marin Chileno Valley Comment
  CAS-BOT-BC111318  Schoenoplectus acutus var. occidentalis John Thomas Howell 1947-6-18 23260 Marin Laguna, Chileno Valley Comment
  CAS-BOT-BC111828  Schoenoplectus tabernaemontani John Thomas Howell 1944-7-9 19720 Marin South of Tomales Bay. Comment
  CAS-BOT-BC111890  Rhynchospora californica John Thomas Howell 1945-8-19 21424 Marin Near Ledum Swamp 182 Comment
  CAS-BOT-BC112025  Eleocharis suksdorfiana John Thomas Howell 1947-6-4 23210 Marin Swale near radio station, Pt. Reyes Peninsula Comment
  CAS-BOT-BC112255  Eleocharis rostellata John Thomas Howell 1966-5-25 41537 Marin Gully just north of garden area, John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC112391  Isolepis carinata John Thomas Howell 1943-5-22 18154 Marin Lagunitas Meadows Comment
  CAS-BOT-BC112865  Eleocharis macrostachya John Thomas Howell 1944-6-4 19568 Marin Mt. Vision west of Inverness Comment
  CAS-BOT-BC112866  Eleocharis macrostachya John Thomas Howell 1939-8-27 15315 Marin Mt. Vision west of Inverness Comment
  CAS-BOT-BC113359  Eleocharis engelmannii John Thomas Howell 1941-7-6 16362 Marin Hidden Lake, Mt. Tamalpais Comment
  CAS-BOT-BC113675  Eleocharis acicularis John Thomas Howell 1946-9-15 23008 Marin HIdden Lake, Mt. Tamalpais. Comment
  CAS-BOT-BC113676  Eleocharis acicularis John Thomas Howell 1946-7-4 22183 Marin E of Aurora School at Sonoma Co. line. Comment
  CAS-BOT-BC114265  Cyperus esculentus John Thomas Howell 1989-9-20 s.n. Marin Foorball field Terra Linda High. San Rafael. Comment
  CAS-BOT-BC115369  Carex utriculata John Thomas Howell 1947-6-4 23212 Marin Swale near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC115370  Carex utriculata John Thomas Howell 1947-6-4 23212 Marin Swale near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC115581  Carex tumulicola John Thomas Howell; J. W. Stacey 1936-6-7 12644 Marin Ledum Swamp on road to Point Reyes Comment
  CAS-BOT-BC115583  Carex tumulicola John Thomas Howell 1945-6-3 s.n. Marin Shell Beach Comment
  CAS-BOT-BC115585  Carex tumulicola John Thomas Howell 1943-5-2 17929 A Marin Big Carson Canyon Comment
  CAS-BOT-BC115586  Carex tumulicola John Thomas Howell 1946-5-16 21851 Marin Angel Island, SE side. Comment
  CAS-BOT-BC115588  Carex tumulicola John Thomas Howell 1949-5-25 25334 Marin Grassy flat behind dunes, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC115589  Carex tumulicola John Thomas Howell 1946-6-9 21995 Marin Near Inverness Comment
  CAS-BOT-BC116773  Carex subfusca John Thomas Howell 1942-5-2 17936 Marin Warm Spring, Big Carson Canyon Comment
  CAS-BOT-BC116897  Carex subbracteata var. subbracteata John Thomas Howell 1937-6-13 13053 Marin Bolinas Comment
  CAS-BOT-BC116922  Carex subbracteata var. subbracteata John Thomas Howell; J. W. Stacey 1936-6-7 12647 Marin Ledum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC116937  Carex subbracteata John Thomas Howell 1945-5-27 20883 Marin NE of Mountain Theater, Mt. Tamalpais. Comment
  CAS-BOT-BC117571  Carex serratodens John Thomas Howell 1937-7-4 13087 Marin Tiburon. Comment
  CAS-BOT-BC117698  Carex simulata John Thomas Howell 1946-6-9 22003 Marin Abbotts Lagoon Comment
  CAS-BOT-BC119037  Carex pellita John Thomas Howell; J. W. Stacey 1936-6-7 12639 Marin Ledum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC119272  Carex ovalis John Thomas Howell 1944-6-4 19567 Marin Mt. Vision west of Inverness. Comment
  CAS-BOT-BC119273  Carex ovalis John Thomas Howell 1946-6-2 21971 Marin Mt. Tamalpais, Potrero Meadow. Comment
  CAS-BOT-BC119274  Carex ovalis John Thomas Howell 1944-6-4 19567 Marin Mt. Vision west of Inverness. Comment
  CAS-BOT-BC119275  Carex ovalis John Thomas Howell 1946-6-13 22061 Marin Estero School north of Dillons Beach. Comment
  CAS-BOT-BC119391  Carex obnupta John Thomas Howell 1946-5-4 21714 Marin East of Aurora School at Sonoma Co. line. Comment
  CAS-BOT-BC119392  Carex obnupta John Thomas Howell 1945-8-19 s.n. Marin Drakes Bay. Comment
  CAS-BOT-BC119393  Carex obnupta John Thomas Howell 1943-6-13 18228 Marin Sausalito hills Comment
  CAS-BOT-BC119394  Carex obnupta John Thomas Howell 1946-7-4 22179 Marin Dillons Beach. Comment
  CAS-BOT-BC119526  Carex nudata John Thomas Howell 1938-6-5 13899 Marin Near Bootjack, Mt. Tamalpais. Comment
  CAS-BOT-BC121848  Dirca occidentalis John Thomas Howell 1948-5-31 24329 Marin Devils Gulch near Camp Taylor Comment
  CAS-BOT-BC124342  Salix lasiolepis var. lasiolepis John Thomas Howell 1980-9-8 53898 Marin Between Alpine and Bon Tempe lakes Comment
  CAS-BOT-BC124346  Salix lasiolepis var. lasiolepis John Thomas Howell 1966-4-6 41470 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC125980  Salix scouleriana John Thomas Howell 1952-6-3 28324 Marin Near Ledum Swamp, Pt. Reyes Peninsula Comment
  CAS-BOT-BC126415  Salix sitchensis John Thomas Howell 1947-6-18 23283 Marin Near Dillons Beach Comment
  CAS-BOT-BC126416  Salix sitchensis John Thomas Howell 1939-3-26 14598 Marin Cataract Gulch, Mt. Tamalpais Comment
  CAS-BOT-BC126422  Salix sitchensis John Thomas Howell 1947-3-23 23047 Marin Cataract Gulch, Mt. Tamalpais Comment
  CAS-BOT-BC126423  Salix sitchensis John Thomas Howell 1947-3-23 23047 Marin Cataract Gulch, Mt. Tamalpais Comment
  CAS-BOT-BC126424  Salix sitchensis John Thomas Howell 1969-4-27 45561 Marin Bed of Lagunitas Creek north of Tocaloma Comment
  CAS-BOT-BC126428  Salix sitchensis John Thomas Howell 1943-7-4 18263 Marin Ledum Swamp on road to Pt. Reyes Comment
  CAS-BOT-BC126429  Salix sitchensis John Thomas Howell 1944-3-26 19346 Marin Point Reyes road beyond Ledum Swamp Comment
  CAS-BOT-BC126430  Salix sitchensis John Thomas Howell 1946-4-14 21616 Marin Near Tomales Comment
  CAS-BOT-BC127187  Agrostis exarata John Thomas Howell 1944-6-4 19542 Marin Inverness Ridge west of Inverness. Comment
  CAS-BOT-BC127191  Agrostis exarata John Thomas Howell 1943-7-4 s.n. Marin Near Ledum Swamp, Point Reyes Peninsula. Comment
  CAS-BOT-BC127192  Agrostis exarata John Thomas Howell 1943-6-6 s.n. Marin On railroad grade above Muir Woods. Comment
  CAS-BOT-BC127193  Agrostis exarata John Thomas Howell 1943-6-13 s.n. Marin Sausalito Hills. Comment
  CAS-BOT-BC127194  Agrostis exarata John Thomas Howell 1939-7-2 s.n. Marin Elk Valley. Comment
  CAS-BOT-BC127196  Agrostis exarata John Thomas Howell 1945-7-1 21264 Marin Tiburon. Comment
  CAS-BOT-BC127198  Agrostis exarata John Thomas Howell 1947-6-4 23216 Marin Near radio station. Point Reyes Peninsula. Comment
  CAS-BOT-BC127199  Agrostis exarata John Thomas Howell 1945-6-3 20922 Marin Twin Beaches. Comment
  CAS-BOT-BC127200  Agrostis exarata John Thomas Howell 1945-6-24 21235 Marin Mount Tamalpais. Bartho Retreat. Comment
  CAS-BOT-BC127207  Agrostis exarata John Thomas Howell 1945-6-24 21237 Marin Mount Tamalpais. Willow Meadow. Comment
  CAS-BOT-BC127211  Agrostis exarata John Thomas Howell 1945-7-29 21342 Marin Bolinas. Comment
  CAS-BOT-BC127212  Agrostis exarata John Thomas Howell 1943-5-22 18125 Marin Deer Park near Fairfax. Comment
  CAS-BOT-BC127213  Agrostis exarata John Thomas Howell 1943-7-11 s.n. Marin Mount Tamalpais. Potrero Meadow. Comment
  CAS-BOT-BC127214  Agrostis exarata John Thomas Howell 1945-6-24 21247 Marin Mount Tamalpais. Lagunitas Meadows. Comment
  CAS-BOT-BC127216  Agrostis exarata John Thomas Howell 1965-10-13 41403 Marin John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC127218  Agrostis exarata John Thomas Howell 1966-7-20 41993 Marin Area adjacent to the John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC127219  Agrostis exarata John Thomas Howell 1945-6-24 21234 Marin Mount Tamalpais. Laurel Dell. Comment
  CAS-BOT-BC127221  Agrostis exarata John Thomas Howell 1945-7-29 21345 Marin Bolinas. Comment
  CAS-BOT-BC127223  Agrostis exarata John Thomas Howell 1939-3-14 14661 Marin Phoenix Lake. Comment
  CAS-BOT-BC127224  Agrostis exarata John Thomas Howell 1944-9-10 20737 Marin Shell Beach north of Inverness. Comment
  CAS-BOT-BC127226  Agrostis exarata John Thomas Howell 1945-7-15 21310 Marin Near Liberty's. Comment
  CAS-BOT-BC127228  Agrostis exarata John Thomas Howell 1946-6-16 22088 Marin Point Reyes Station. Comment
  CAS-BOT-BC127229  Agrostis exarata John Thomas Howell 1943-6-6 s.n. Marin Mill Valley steps. Comment
  CAS-BOT-BC12742  Lepidium oxycarpum John Thomas Howell 1933-4-1 10919 Marin 4.5 miles north of San Rafael. Comment
  CAS-BOT-BC127427  Agrostis densiflora John Thomas Howell 1945-6-12 20962 Marin Near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC127436  Agrostis densiflora John Thomas Howell 1941-6-15 s.n. Marin Point Reyes Lighthouse. Comment
  CAS-BOT-BC127491  Agrostis capillaris John Thomas Howell 1947-6-4 23217 Marin Near radio station. Point Reyes Peninsula. Comment
  CAS-BOT-BC127492  Agrostis capillaris John Thomas Howell 1947-5-14 23165 Marin McClure Beach. Comment
  CAS-BOT-BC127507  Agrostis blasdalei John Thomas Howell 1946-6-9 22006 Marin North of Abbotts Lagoon. Comment
  CAS-BOT-BC127511  Agrostis blasdalei John Thomas Howell 1946-5-26 21954 Marin Ocean Bluff, Point Reyes Lighthouse. Comment
  CAS-BOT-BC127512  Agrostis blasdalei John Thomas Howell 1946-6-13 22053 Marin Rocks east of Dillons Beach. Comment
  CAS-BOT-BC130738  Lilium pardalinum John Thomas Howell 1966-7-20 41994 Marin Area adjacent to the John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC13124  Agoseris hirsuta John Thomas Howell 1939-5-21 14692 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC13125  Agoseris hirsuta John Thomas Howell 1940-5-20 15471 Marin Fairfax Comment
  CAS-BOT-BC13130  Agoseris hirsuta John Thomas Howell 1947-5-18 23181 Marin South end of Carson Ridge Comment
  CAS-BOT-BC131540  Ericameria arborescens John Thomas Howell 1924-9-14 652 Marin Pipeline Trail Comment
  CAS-BOT-BC131550  Ericameria arborescens John Thomas Howell 1930-12-28 5716 Marin Slopes of Mt. Tamalpais above Mill Valley Comment
  CAS-BOT-BC132575  Calochortus uniflorus John Thomas Howell 1945-4-29 20783 Marin Lagunitas Meadows Comment
  CAS-BOT-BC132896  Adenostoma fasciculatum John Thomas Howell 1946-5-12 s.n. Marin Carson Ridge Comment
  CAS-BOT-BC132899  Adenostoma fasciculatum John Thomas Howell 1930-12-28 5715 Marin Lower slopes of Mt. Tamalpais, Mill Valley Comment
  CAS-BOT-BC132902  Adenostoma fasciculatum John Thomas Howell 1967-2-26 s.n. Marin Old railroad grade above Cascade Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC133778  Trichostema lanceolatum J. T. Howell 1988-7-30 s.n. Marin Terra Linda Community Gardens Comment
  CAS-BOT-BC135518  Cercocarpus betuloides var. betuloides John Thomas Howell 1947-3-2 23040 Marin Above Blythedale Canyon, east side of Mt. Tamalpais Comment
  CAS-BOT-BC135519  Cercocarpus betuloides var. betuloides John Thomas Howell 1939-8-27 15320 Marin Near Phoenix Lake Comment
  CAS-BOT-BC137735  Anthoxanthum odoratum John Thomas Howell 1943-6-6 18197 Marin Between Mill Valley and Muir Woods. Comment
  CAS-BOT-BC137931  Alopecurus saccatus John Thomas Howell 1946-5-4 21702 Marin East of Aurora School at Sonoma county line. Comment
  CAS-BOT-BC138315  Aira caryophyllea var. caryophyllea John Thomas Howell 1945-6-12 20959 Marin Near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC138316  Aira caryophyllea var. caryophyllea John Thomas Howell 1943-6-13 s.n. Marin Sausalito. Comment
  CAS-BOT-BC138658  Agrostis stolonifera John Thomas Howell 1944-7-9 19713 Marin South end of Tomales Bay. Comment
  CAS-BOT-BC138659  Agrostis stolonifera John Thomas Howell 1945-8-5 21363 Marin McKinnan's Landing near Stinson Beach. Comment
  CAS-BOT-BC138837  Agrostis microphylla John Thomas Howell 1945-9-13 s.n. Marin Near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC139025  Agrostis pallens John Thomas Howell 1946-6-16 22073 Marin Inverness Park. Comment
  CAS-BOT-BC139026  Agrostis pallens John Thomas Howell 1943-7-4 18264 Marin Ledum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC139028  Agrostis pallens John Thomas Howell 1943-7-11 18285 Marin Mount Tamalpais. Near Bootjack. Comment
  CAS-BOT-BC139030  Agrostis pallens John Thomas Howell 1941-6-10 16294 Marin Black Point. Comment
  CAS-BOT-BC139037  Agrostis pallens John Thomas Howell 1946-5-16 21876 Marin Angel Island, south side. Comment
  CAS-BOT-BC139042  Agrostis pallens John Thomas Howell 1939-7-16 s.n. Marin Fern Canyon, Mount Tamalpais. Comment
  CAS-BOT-BC139048  Agrostis pallens John Thomas Howell; Catherine Best 1981-6-11 54064 Marin Point Reyes Peninsula. North Beach. Comment
  CAS-BOT-BC139049  Agrostis pallens John Thomas Howell 1945-9-13 21465 Marin Point Reyes Peninsula. Near radio station. Comment
  CAS-BOT-BC139487  Agrostis hallii John Thomas Howell 1946-6-30 22166 Marin Rodeo Lagoon. Comment
  CAS-BOT-BC139491  Agrostis hallii John Thomas Howell 1945-8-19 21418 Marin Inverness. Comment
  CAS-BOT-BC139493  Agrostis hallii John Thomas Howell 1943-7-4 s.n. Marin Near Ledum Swamps on road to Point Reyes. Comment
  CAS-BOT-BC139665  Agrostis gigantea John Thomas Howell 1943-7-3 18244 Marin Sausalito. Comment
  CAS-BOT-BC139666  Agrostis gigantea John Thomas Howell 1939-6-25 14810 Marin Near West Point, Mount Tamalpais. Comment
  CAS-BOT-BC139668  Agrostis gigantea John Thomas Howell 1941-7-6 16371 Marin Lake Lagunitas Meadows. Comment
  CAS-BOT-BC139669  Agrostis gigantea John Thomas Howell 1947-9-6 24181 Marin Dillons Beach. Comment
  CAS-BOT-BC139670  Agrostis gigantea John Thomas Howell 1944-6-25 19644 Marin Santa Ventia. Comment
  CAS-BOT-BC141320  Phoradendron serotinum subsp. tomentosum John Thomas Howell 1945-6-24 21243 Marin Hidden Lake Fien Trail, Mt.Tamalpais Comment
  CAS-BOT-BC141590  Cotoneaster pannosus John Thomas Howell 1965-10-13 41414 Marin John Thomas Howell Botanical Garden Tiburon Comment
  CAS-BOT-BC142250  Physocarpus capitatus John Thomas Howell 1958-6-28 33638 Marin Stream bank, Willow Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC142517  Amelanchier utahensis John Thomas Howell 1947-4-23 23060 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC144016  Horkelia marinensis John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True 1980-6-19 53719 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC144705  Ribes sanguineum var. glutinosum John Thomas Howell 1944-3-26 19341 Marin Inverness Comment
  CAS-BOT-BC144708  Ribes sanguineum var. glutinosum John Thomas Howell 1944-7-9 19696 Marin Inverness Ridge Comment
  CAS-BOT-BC145418  Brachypodium distachyon John Thomas Howell 1949-6-7 25340 Marin Chileno Valley. Comment
  CAS-BOT-BC145419  Brachypodium distachyon John Thomas Howell 1948-5-31 24327 Marin Devils Gulch near Camp Taylor. Comment
  CAS-BOT-BC145421  Brachypodium distachyon John Thomas Howell 1966-6-9 41563 Marin Just north of the John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC145423  Brachypodium distachyon John Thomas Howell 1948-5-31 24327 Marin Common Devils Gulch near Camp Taylor. Comment
  CAS-BOT-BC145475  Briza maxima John Thomas Howell 1941-5-25 16223 Marin Mount Tamalpais. Potrero Meadows. Comment
  CAS-BOT-BC145759  Avena sativa John Thomas Howell 1946-6-30 22140 Marin Rodeo Lagoon. Comment
  CAS-BOT-BC145778  Beckmannia syzigachne John Thomas Howell 1945-5-9 20835 Marin Between Hamilton Field and Ignacio. Comment
  CAS-BOT-BC145779  Beckmannia syzigachne John Thomas Howell 1946-6-13 22019 Marin Hicks Valley. Comment
  CAS-BOT-BC146224  Avena J. T. Howell 1988-7-13 s.n. Marin Terra Linda. Comment
  CAS-BOT-BC146514  Horkelia tenuiloba John Thomas Howell 1939-7-16 14847 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC146545  Rosa gymnocarpa John Thomas Howell 1946-5-16 21893 Marin Angel Island, n. side Comment
  CAS-BOT-BC146589  Carex gynodynama John Thomas Howell 1946-5-4 21728 Marin Near Dillons Beach Comment
  CAS-BOT-BC146620  Carex mendocinensis John Thomas Howell 1940-5-26 15535 Marin Little Carson Falls Comment
  CAS-BOT-BC146632  Carex mendocinensis John Thomas Howell 1940-5-26 15535 Marin Little Carson Falls Comment
  CAS-BOT-BC146638  Carex mendocinensis John Thomas Howell 1942-7-12 17020 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC147261  Rubus parviflorus John Thomas Howell 1939-6-25 14807 Marin Mt. Tamalpais Comment
  CAS-BOT-BC147490  Rosa californica John Thomas Howell 1944-7-2 s.n. Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC147502  Rosa californica John Thomas Howell 1944-6-25 19651 Marin Santa Venetia Comment
  CAS-BOT-BC147509  Rosa californica John Thomas Howell 1939-9-3 15357 Marin San Antonio Creek Comment
  CAS-BOT-BC148226  Rosa spithamea John Thomas Howell 1942-6-21 17001 Marin San Anselmo Canyon Comment
  CAS-BOT-BC148228  Rosa spithamea John Thomas Howell 1946-6-2 21978 Marin Rocky Ridge Fire Trail, Mt. Tamalpais Comment
  CAS-BOT-BC148229  Rosa spithamea John Thomas Howell 1946-9-8 23001 Marin Burned area sw. of Lake Lagunitas, Mt. Tamalpais Comment
  CAS-BOT-BC148230  Rosa spithamea John Thomas Howell 1946-5-12 21819 Marin Carson Ridge Comment
  CAS-BOT-BC148906  Bromus carinatus var. marginatus John Thomas Howell 1944-6-4 s.n. Marin Inverness Ridge. Comment
  CAS-BOT-BC148909  Bromus carinatus var. marginatus John Thomas Howell 1948-5-31 24326 Marin Devils Gulch near Camp Taylor. Comment
  CAS-BOT-BC149176  Bromus carinatus var. carinatus John Thomas Howell 1943-5-9 17972 Marin San Rafael Hills. Comment
  CAS-BOT-BC149201  Bromus carinatus var. carinatus John Thomas Howell 1959-11-4 35114 Marin Shore of Bolinas Lagoon north of Stinson Beach. Comment
  CAS-BOT-BC149202  Bromus carinatus var. carinatus John Thomas Howell 1959-11-4 35114 Marin Shore of Bolinas Lagoon north of Stinson Beach. Comment
  CAS-BOT-BC149205  Bromus carinatus var. carinatus John Thomas Howell 1947-5-8 23141 Marin Sausalito. Comment
  CAS-BOT-BC149206  Bromus carinatus var. carinatus John Thomas Howell 1943-5-9 17955 Marin Rafael Hills. Comment
  CAS-BOT-BC149208  Bromus carinatus var. carinatus John Thomas Howell 1944-5-21 19489 Marin Mount Tamalpais. West end of Phoenix Lake. Comment
  CAS-BOT-BC149209  Bromus carinatus var. carinatus John Thomas Howell 1943-6-6 18201 Marin Between Mill Valley and Muir Woods. Comment
  CAS-BOT-BC149210  Bromus carinatus var. carinatus John Thomas Howell 1943-5-15 18099 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC149220  Bromus carinatus var. carinatus John Thomas Howell 1945-7-4 21275 Marin Inverness. Comment
  CAS-BOT-BC149247  Bromus carinatus var. carinatus John Thomas Howell 1943-5-22 18129 Marin Deer Park near Fairfax. Comment
  CAS-BOT-BC149643  Setaria pumila subsp. pumila J. T. Howell 1988-7-22 s.n. Marin Terra Linda community vegetable garden Comment
  CAS-BOT-BC149971  Holodiscus discolor var. discolor John Thomas Howell 1938-5-22 13797 Marin San Anselmo Canyon Comment
  CAS-BOT-BC155017  Bromus hordeaceus John Thomas Howell 1966-4-18 41482 Marin John Thomas Howell Botanical Garden. Tiburon. Comment
  CAS-BOT-BC155020  Bromus hordeaceus John Thomas Howell 1966-4-18 41520 Marin John Thomas Howell Botanical Garden. Tiburon. Comment
  CAS-BOT-BC155379  Bromus hordeaceus John Thomas Howell 1950-5-25 s.n. Marin Mount Tamalpais. Rifle Camp. Comment
  CAS-BOT-BC155829  Bromus catharticus var. elatus John Thomas Howell 1953-7-5 29105 Marin Mount Tamalpais. East Peak. Comment
  CAS-BOT-BC156101  Bromus diandrus John Thomas Howell 1966-4-6 41474 Marin Tiburon. John Thomas Howell Botanical Garden. Comment
  CAS-BOT-BC156103  Bromus diandrus John Thomas Howell 1946-6-16 22072 Marin Inverness Peak. Comment
  CAS-BOT-BC156109  Bromus diandrus John Thomas Howell 1949-6-7 25343 Marin Aurora School. Comment
  CAS-BOT-BC157412  Solanum umbelliferum J. T. Howell 1945-6-30 21248 Marin Steep Ravine, Mt. Tamalpais Comment
  CAS-BOT-BC157540  Solanum umbelliferum J. T. Howell 1945-5-13 20861 Marin Deer Park (Near Fairfax) Comment
  CAS-BOT-BC157715  Drymocallis glandulosa var. glandulosa John Thomas Howell 1925-4-5 901 Marin Pipeline Trail Comment
  CAS-BOT-BC157946  Prunus emarginata John Thomas Howell 1943-5-30 18191 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC158833  Rubus ursinus John Thomas Howell 1933-7-30 11477 Marin Near Inverness Comment
  CAS-BOT-BC158835  Rubus ursinus John Thomas Howell 1938-5-22 13799 Marin San Anselmo Canyon Comment
  CAS-BOT-BC158836  Rubus ursinus John Thomas Howell 1938-5-22 13799 Marin San Anselmo Canyon Comment
  CAS-BOT-BC158838  Rubus ursinus John Thomas Howell 1938-6-5 13898 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC158839  Rubus ursinus John Thomas Howell 1938-6-19 13918 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC158840  Rubus ursinus John Thomas Howell 1938-6-19 13918 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC158847  Rubus ursinus John Thomas Howell 1938-6-5 13906 Marin Near West Point, Mt. Tamalpais Comment
  CAS-BOT-BC158850  Rubus ursinus John Thomas Howell 1938-6-19 13929 Marin Near Rattlesnake, Mt. Tamalpais Comment
  CAS-BOT-BC160262  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John Thomas Howell 1946-6-30 22149 Marin Rodeo Lagoon Comment
  CAS-BOT-BC160263  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John Thomas Howell 1945-6-30 s.n. Marin Stinson Beach Comment
  CAS-BOT-BC160988  Clarkia amoena subsp. amoena John Thomas Howell 1939-6-4 14714 Marin Pt. Reyes lighthouse Comment
  CAS-BOT-BC160990  Clarkia amoena subsp. amoena John Thomas Howell 1946-6-9 22012 Marin Pierce Ranch, n. Pt. Reyes Peninsula Comment
  CAS-BOT-BC161394  Bromus tectorum John Thomas Howell 1955-5-29 30255 Marin Near Mountain Theater, Mount Tamalpais. Comment
  CAS-BOT-BC161396  Bromus tectorum John Thomas Howell 1945-6-3 20940 Marin Shell Beach. Comment
  CAS-BOT-BC161857  Bromus rubens John Thomas Howell 1950-6-11 26626 Marin Mount Tamalpais. Bootjack. Comment
  CAS-BOT-BC162250  Bromus maritimus John Thomas Howell 1939-6-4 14715 Marin Point Reyes Lighthouse. Comment
  CAS-BOT-BC162328  Bromus madritensis John Thomas Howell 1946-5-16 21872 Marin Angel Island. South side. Comment
  CAS-BOT-BC162330  Bromus madritensis John Thomas Howell 1969-5-5 45571 Marin Tiburon Peninsula. Ring Hill. Comment
  CAS-BOT-BC164290  Clarkia davyi John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True 1980-6-19 53720 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC164297  Clarkia davyi John Thomas Howell 1947-6-18 23273 Marin 3 miles east of Tomales Comment
  CAS-BOT-BC164305  Clarkia davyi John Thomas Howell 1947-6-4 23223 Marin Near radio station, Pt. Reyes Peninsula Comment
  CAS-BOT-BC16448  Barbarea orthoceras John Thomas Howell; W. L. Jepson 1927-3-20 2291 Marin Southeast slope of Mount Tamalpais. 304 Comment
  CAS-BOT-BC16450  Barbarea orthoceras John Thomas Howell 1947-4-2 s.n. Marin Mill Valley. Comment
  CAS-BOT-BC16453  Barbarea orthoceras John Thomas Howell 1949-6-12 25347 Marin Mount Tamalpais. Corte Madera Ridge. Comment
  CAS-BOT-BC164606  Clarkia gracilis subsp. gracilis John Thomas Howell 1940-5-12 15420 Marin Lagunitas Creek Comment
  CAS-BOT-BC164609  Clarkia gracilis subsp. gracilis John Thomas Howell 1943-5-9 17958 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC164610  Clarkia gracilis subsp. gracilis John Thomas Howell 1947-5-18 23173 Marin Fairfax Hills Comment
  CAS-BOT-BC165077  Clarkia rubicunda John Thomas Howell 1946-5-16 21875 Marin Angel Island, s. side Comment
  CAS-BOT-BC168740  Ribes victoris John Thomas Howell 1943-3-7 17886 Marin Hills northeast of San Rafael Comment
  CAS-BOT-BC168747  Ribes victoris John Thomas Howell 1942-7-12 17033 Marin Above Lake Lagunitas on Northside Trail, Mt. Tamalpais Comment
  CAS-BOT-BC168750  Ribes victoris John Thomas Howell 1943-4-11 17915 Marin Hills northeast of San Rafael Comment
  CAS-BOT-BC169314  Alnus rubra John Thomas Howell 1940-5-20 15485 Marin Inverness Comment
  CAS-BOT-BC169315  Alnus rubra John Thomas Howell 1927-4-23 2352 Marin Between Muir Woods and Big Lagoon in Franklin Canon [canyon] 30 Comment
  CAS-BOT-BC170988  Alnus rhombifolia John Thomas Howell 1939-10-15 s.n. Marin Alpine Dam Comment
  CAS-BOT-BC170989  Alnus rhombifolia John Thomas Howell 1940-5-12 s.n. Marin Lagunitas Creek Canyon Comment
  CAS-BOT-BC172451  Clarkia purpurea subsp. purpurea John Thomas Howell 1947-5-21 23187 Marin Tiburon Comment
  CAS-BOT-BC174589  Minuartia californica John Thomas Howell 1946-4-14 21602 Marin Near Dillons Beach Comment
  CAS-BOT-BC17510  Athysanus pusillus John Thomas Howell 1946-3-24 21581 Marin Carson Country. Comment
  CAS-BOT-BC175349  Stellaria borealis subsp. sitchana John Thomas Howell 1943-7-4 18261 Marin Ledum Swamp on road to Pt. Reyes Comment
  CAS-BOT-BC175353  Stellaria borealis subsp. sitchana John Thomas Howell 1939-6-4 14723 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC175915  Agrostis densiflora John Thomas Howell; Catherine Best 1981-6-11 54068 Marin North Beach, Pt. Reyes Peninsula Comment
  CAS-BOT-BC175942  Agrostis pallens John Thomas Howell 1945-6-24 s.n. Marin Near Bootjack Cypresses, Mt. Tamalpais Comment
  CAS-BOT-BC175943  Agrostis pallens John Thomas Howell 1946-5-16 21876 Marin Angel Island, south side Comment
  CAS-BOT-BC176067  Hesperolinon congestum John Thomas Howell 1937-7-4 13089 Marin Tiburon Comment
  CAS-BOT-BC177034  Acacia dealbata John Thomas Howell 1943-8-29 19312 Marin On Summit (Avenue) Ridge above Mill Valley 152 Comment
  CAS-BOT-BC177035  Acacia dealbata John Thomas Howell 1943-8-29 19312 Marin On Summit (Avenue) Ridge above Mill Valley 152 Comment
  CAS-BOT-BC177204  Amorpha californica var. napensis John Thomas Howell 1946-5-25 21943 Marin Hills w. of Corte Madera Comment
  CAS-BOT-BC17817  Carex amplifolia John Thomas Howell 1946-6-30 22127 Marin Marsh east of Rodeo Lagoon. Comment
  CAS-BOT-BC180839  Kochia scoparia John Thomas Howell 1988-8-11 s.n. Marin Terra Linda Vegetable Garden, New Albion Way opposite Cermenho Ct., San Rafael Comment
  CAS-BOT-BC180840  Kochia scoparia John Thomas Howell 1988-7-28 s.n. Marin Terra Linda Vegetable Garden, New Albion Way opposite Cermenho Ct., San Rafael Comment
  CAS-BOT-BC182436  Eriogonum nudum var. auriculatum John Thomas Howell 1945-7-8 21287 Marin San Antonio station Comment
  CAS-BOT-BC183152  Vulpia microstachys var. ciliata John Thomas Howell 1943-6-8 18223 Marin Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC183153  Vulpia microstachys var. ciliata John Thomas Howell 1941-5-25 10233 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC183154  Vulpia microstachys var. ciliata John Thomas Howell 1945-5-27 20882 Marin Northeast of Mountain Theatre, Mt. Tamalpais Comment
  CAS-BOT-BC183155  Vulpia microstachys var. ciliata John Thomas Howell 1938-6-9 13909 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC183159  Vulpia microstachys var. ciliata John Thomas Howell 1945-5-27 20882 Marin Northeast of Mountain Theater, Mt. Tamalpais Comment
  CAS-BOT-BC183997  Vulpia microstachys var. microstachys John Thomas Howell 1966-4-6 41458 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC184341  Vulpia microstachys var. pauciflora John Thomas Howell 1941-4-17 s.n. Marin Tiburon Comment
  CAS-BOT-BC184342  Vulpia microstachys var. pauciflora John Thomas Howell 1939-5-14 14683 Marin North side of West Peak, Mt. Tamalpais Comment
  CAS-BOT-BC184344  Vulpia microstachys var. pauciflora John Thomas Howell 1933-4-30 11194 Marin North side of Mt. Tamalpais Comment
  CAS-BOT-BC184346  Vulpia microstachys var. pauciflora John Thomas Howell 1938-6-9 13908 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC184348  Vulpia microstachys var. pauciflora John Thomas Howell 1947-5-4 23132 Marin San Rafael Hills Comment
  CAS-BOT-BC184349  Vulpia microstachys var. pauciflora John Thomas Howell 1946-5-14 21838 Marin Between Barths Retreat and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC184351  Vulpia microstachys var. pauciflora John Thomas Howell 1946-5-14 21839 Marin Between Barths Retreat and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC184352  Vulpia microstachys var. pauciflora John Thomas Howell 1938-5-22 13792 Marin San Anselmo Canyon Comment
  CAS-BOT-BC184353  Vulpia microstachys var. pauciflora John Thomas Howell 1941-5-25 16222 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC184354  Vulpia microstachys var. pauciflora John Thomas Howell 1943-5-30 18187 Marin Northside Trail, Mt. Tamalpais Comment
  CAS-BOT-BC184358  Vulpia microstachys var. pauciflora John Thomas Howell 1967-5-24 42259 Marin To west of Dakin Lane, just north of Old St. Hilary's Church, Tiburon Comment
  CAS-BOT-BC184359  Vulpia microstachys var. pauciflora John Thomas Howell 1947-4-27 23088 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC184360  Vulpia microstachys var. pauciflora John Thomas Howell 1946-5-14 21838 Marin Between Barth's Retreat and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC185024  Calamagrostis rubescens John Thomas Howell 1945-7-15 s.n. Marin Near Liberty Springs. Comment
  CAS-BOT-BC185025  Calamagrostis rubescens John Thomas Howell 1939-7-16 s.n. Marin Mount Tamalpais. Azalea Flat. Comment
  CAS-BOT-BC185026  Calamagrostis rubescens John Thomas Howell 1945-8-12 21377 Marin Mill Valley, Cascade Canyon. Comment
  CAS-BOT-BC185102  Calamagrostis ophitidis John Thomas Howell 1940-5-15 18070 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC185103  Calamagrostis ophitidis John Thomas Howell 1945-5-27 20878 A Marin Mount Tamalpais. Bootjack cypresses. Comment
  CAS-BOT-BC185104  Calamagrostis ophitidis John Thomas Howell 1939-5-21 14695 Marin South end of Tiburon Peninsula. Comment
  CAS-BOT-BC185105  Calamagrostis ophitidis John Thomas Howell 1942-6-21 16988 Marin Carson Ridge. Comment
  CAS-BOT-BC185106  Calamagrostis ophitidis John Thomas Howell 1966-5-25 41535 Marin John Thomas Howell Botanical Garden, Tiburon. Just north of garden area. Comment
  CAS-BOT-BC185108  Calamagrostis ophitidis John Thomas Howell 1939-5-14 14680 Marin Near Collier Spring, Mount Tamalpais. Comment
  CAS-BOT-BC185109  Calamagrostis ophitidis John Thomas Howell 1947-5-18 23176 Marin At south end of Carson Ridge. Comment
  CAS-BOT-BC185110  Calamagrostis ophitidis John Thomas Howell 1947-5-18 23176 Marin At south end of Carson Ridge. Comment
  CAS-BOT-BC185230  Calamagrostis koelerioides John Thomas Howell 1948-5-22 24307 Marin Mount Tamalpais. Firetrail north of East Peak. Comment
  CAS-BOT-BC185511  Bromus vulgaris John Thomas Howell 1943-5-30 18189 Marin Rifle Camp, Mount Tamalpais. Comment
  CAS-BOT-BC185512  Bromus vulgaris John Thomas Howell 1938-6-19 13911 Marin Cascade Canyon, Mill Valley. Comment
  CAS-BOT-BC185513  Bromus vulgaris John Thomas Howell 1945-6-24 s.n. Marin Mount Tamalpais. Rock Spring to Laurel Dell. Comment
  CAS-BOT-BC185514  Bromus vulgaris John Thomas Howell 1945-7-4 21268 Marin Inverness Ridge. Comment
  CAS-BOT-BC186566  Astragalus nuttallii var. virgatus John Thomas Howell 1946-5-16 21868 Marin Angel Island, se. side Comment
  CAS-BOT-BC188502  Garrya elliptica John Thomas Howell 1925-2-1 736 Marin North side of Mt. Tamalpais on Lake Lagunitas Trail 609 Comment
  CAS-BOT-BC189720  Danthonia californica John Thomas Howell 1950-6-4 26624 Marin Mount Tamalpais. Near Mountain Home. Comment
  CAS-BOT-BC190132  Crypsis vaginiflora John Thomas Howell 1980-9-8 53894 Marin Alpine Lake near Bon Tempe Lake Dam. Comment
  CAS-BOT-BC190417  Cynosurus echinatus John Thomas Howell 1943-5-22 18157 Marin Lagunitas Meadows. Comment
  CAS-BOT-BC191536  Chorizanthe cuspidata var. villosa John Thomas Howell 1945-6-12 s.n. Marin Pt. Reyes dunes Comment
  CAS-BOT-BC191538  Chorizanthe cuspidata var. villosa John Thomas Howell 1939-6-4 14727 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC191539  Chorizanthe cuspidata var. villosa John Thomas Howell 1939-6-4 14716 Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC191540  Chorizanthe cuspidata var. villosa John Thomas Howell 1946-7-4 22176 Marin Dillons Beach Comment
  CAS-BOT-BC192187  Garrya fremontii John Thomas Howell 1925-2-1 737 Marin North side of Mt. Tamalpais on Lake Lagunitas Trail 609 Comment
  CAS-BOT-BC192192  Garrya fremontii John Thomas Howell 1942-9-6 17864 Marin Northside Trail, Mt. Tamalpais Comment
  CAS-BOT-BC19237  Carex barbarae John Thomas Howell 1946-5-16 21855 Marin Angel Island, SE side. Comment
  CAS-BOT-BC19247  Carex barbarae John Thomas Howell 1939-7-2 s.n. Marin Elk Valley. Comment
  CAS-BOT-BC19248  Carex barbarae John Thomas Howell 1943-6-6 s.n. Marin Canyon below Muir Woods. Comment
  CAS-BOT-BC19253  Carex barbarae John Thomas Howell 1927-9-9 3093 Marin Hills SW of Mill Valley on road to Muir Woods. 60 Comment
  CAS-BOT-BC192548  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1943-7-11 s.n. Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC192552  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1946-6-16 22085 Marin Pt. Reyes Station Comment
  CAS-BOT-BC192554  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1943-7-4 18267 Marin Near Ledum Swamp Comment
  CAS-BOT-BC192555  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1944-6-4 19562 Marin Near Mt. Vision west of Inverness Comment
  CAS-BOT-BC192556  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1965-10-13 41405 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC192558  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1946-6-30 22153 Marin Rodeo Lagoon Comment
  CAS-BOT-BC192559  Deschampsia cespitosa subsp. holciformis J. T. Howell 1943-7-4 18257 Marin Ledum Swamp on road to Pt. Reyes Comment
  CAS-BOT-BC193107  Astragalus pycnostachyus var. pycnostachyus John Thomas Howell 1945-8-19 21433 Marin At head of Drakes Bay Comment
  CAS-BOT-BC193114  Astragalus pycnostachyus var. pycnostachyus John Thomas Howell 1945-8-19 21433 Marin At head of Drakes Bay Comment
  CAS-BOT-BC194533  Garrya elliptica John Thomas Howell 1944-4-13 19380 Marin Big Rock Ridge west of Hamilton Field Comment
  CAS-BOT-BC19454  Carex bolanderi John Thomas Howell 1944-6-4 19539 Marin Inverness Ridge west of Inverness. Comment
  CAS-BOT-BC195583  Catapodium rigidum John Thomas Howell 1943-6-13 18225 Marin Sausalito 60 Comment
  CAS-BOT-BC195584  Catapodium rigidum John Thomas Howell 1943-6-13 18225 Marin Sausalito 60 Comment
  CAS-BOT-BC195585  Catapodium rigidum John Thomas Howell 1945-8-12 21378 Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC195586  Catapodium rigidum John Thomas Howell 1943-6-13 18225 Marin Sausalito Comment
  CAS-BOT-BC195632  Distichlis spicata John Thomas Howell 1945-8-5 s.n. Marin Stinson Beach Comment
  CAS-BOT-BC195633  Distichlis spicata John Thomas Howell 1944-5-7 19446 Marin Larkspur salt marsh Comment
  CAS-BOT-BC196047  Lupinus albifrons var. collinus John Thomas Howell 1943-5-22 18133 Marin Fairfax hills Comment
  CAS-BOT-BC196174  Lupinus albifrons var. douglasii John Thomas Howell 1950-6-4 26622 Marin Blithedale Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC196178  Lupinus albifrons var. douglasii John Thomas Howell 1947-5-25 23196 Marin Simmons Trail, Mt. Tamalpais Comment
  CAS-BOT-BC196411  Lupinus arboreus John Thomas Howell 1944-7-9 19692 Marin Mt. Vision, Inverness Ridge Comment
  CAS-BOT-BC19683  Carex athrostachya John Thomas Howell 1946-6-13 22025 Marin Chileno Valley. Comment
  CAS-BOT-BC197007  Echinochloa colona J. T. Howell 1988-7-16 s.n. Marin Vegetable garden in Terra Linda Comment
  CAS-BOT-BC197147  Echinochloa crus-galli John Thomas Howell 1943-9-5 19320 Marin Just south of Mill Valley Comment
  CAS-BOT-BC197150  Echinochloa crus-galli John Thomas Howell 1943-7-4 18276 Marin Inverness Comment
  CAS-BOT-BC197260  Echinochloa muricata var. microstachya J. T. Howell 1988-9-29 s.n. Marin Vegetable garden in Terra Linda Comment
  CAS-BOT-BC198485  Deschampsia danthonioides John Thomas Howell 1945-4-29 s.n. Marin Lagunitas Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC198486  Deschampsia danthonioides John Thomas Howell 1946-7-7 22215 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC198489  Deschampsia danthonioides John Thomas Howell 1967-5-24 42261 Marin To west of Dakin Lane, just north of Old St. Hilary's Church, Tiburon Comment
  CAS-BOT-BC198782  Vulpia bromoides John Thomas Howell 1943-4-11 17920 Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC198784  Vulpia bromoides John Thomas Howell 1933-4-30 11187 Marin North side of Mt. Tamalpais Comment
  CAS-BOT-BC198785  Vulpia bromoides John Thomas Howell 1943-5-9 17962 Marin San Rafael hills. Comment
  CAS-BOT-BC198786  Vulpia bromoides John Thomas Howell 1941-5-25 16198 Marin West Point to West Peak, Mt. Tamalpais Comment
  CAS-BOT-BC198788  Vulpia bromoides John Thomas Howell 1943-5-15 18080 Marin Tiburon Peninsula Comment
  CAS-BOT-BC198789  Vulpia bromoides John Thomas Howell 1930-4-23 s.n. Marin Blythedale Canyon, Mill Valley Comment
  CAS-BOT-BC198790  Vulpia bromoides John Thomas Howell 1939-4-23 14617 Marin Upper Throckmorton Trail, Mt. Tamalpais Comment
  CAS-BOT-BC19956  Carex exsiccata John Thomas Howell 1946-6-13 22032 Marin Chileno Valley. Comment
  CAS-BOT-BC199635  Trisetum canescens John Thomas Howell 1947-6-4 23211 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC199636  Trisetum canescens John Thomas Howell 1946-5-26 s.n. Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC199638  Trisetum canescens John Thomas Howell 1943-5-22 18147 Marin Fairfax Hills Comment
  CAS-BOT-BC199640  Trisetum canescens John Thomas Howell 1943-5-9 17952 A Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC200051  Rhododendron occidentale var. occidentale John Thomas Howell 1943-5-30 18193 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC201819  Deschampsia elongata John Thomas Howell 1943-5-9 17951 Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC201822  Deschampsia elongata John Thomas Howell 1944-6-25 19660 Marin Between Santa Venetia and Chinese Camp Comment
  CAS-BOT-BC201824  Deschampsia elongata John Thomas Howell 1942-6-21 16982 Marin Carson Ridge Comment
  CAS-BOT-BC201825  Deschampsia elongata John Thomas Howell 1942-6-21 s.n. Marin Carson Ridge Comment
  CAS-BOT-BC203488  Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-9 17943 Marin San Rafael Comment
  CAS-BOT-BC203489  Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-9 17944 Marin San Rafael Comment
  CAS-BOT-BC203504  Elymus glaucus subsp. glaucus John Thomas Howell 1945-6-12 20961 Marin Near radio station, Point Reyes Peninsula Comment
  CAS-BOT-BC203505  Elymus glaucus subsp. glaucus John Thomas Howell 1945-6-30 s.n. Marin Twin Beaches Comment
  CAS-BOT-BC203508  Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-9 17964 Marin San Rafael hills Comment
  CAS-BOT-BC203509  Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-22 18128 Marin Deer Park near Fairfax Comment
  CAS-BOT-BC203510  Elymus glaucus subsp. glaucus John Thomas Howell 1945-5-9 20819 Marin Hamilton Field Comment
  CAS-BOT-BC203517  Elymus glaucus subsp. glaucus John Thomas Howell 1945-8-19 21444 Marin Head of Drakes Bay Comment
  CAS-BOT-BC203807  Elymus glaucus subsp. virescens John Thomas Howell 1943-7-4 18249 Marin Ledum Swamp on road to Point Reyes Comment
  CAS-BOT-BC203811  Elymus glaucus subsp. virescens John Thomas Howell 1945-7-15 21306 Marin Near Liberty's Comment
  CAS-BOT-BC203812  Elymus glaucus subsp. virescens John Thomas Howell 1945-7-15 21306 Marin Near Liberty's Comment
  CAS-BOT-BC203813  Elymus glaucus subsp. virescens John Thomas Howell 1947-5-14 23161 Marin McClure Beach Comment
  CAS-BOT-BC203851  Elymus X hansenii John Thomas Howell 1943-6-6 18206 Marin Ridge se. of Muir Woods Comment
  CAS-BOT-BC203852  Elymus X hansenii John Thomas Howell 1946-5-16 21887 Marin Angel Island Comment
  CAS-BOT-BC203853  Elymus X hansenii John Thomas Howell 1943-5-15 18082 Marin Tiburon Peninsula Comment
  CAS-BOT-BC203856  Elymus X hansenii John Thomas Howell 1948-5-31 24325 Marin Devils Gulch near Camp Taylor Comment
  CAS-BOT-BC203858  Elymus X hansenii John Thomas Howell 1943-5-22 18139 Marin Fairfax hills Comment
  CAS-BOT-BC203859  Elymus X hansenii John Thomas Howell 1941-7-16 16378 Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC203860  Elymus X hansenii John Thomas Howell 1941-6-29 16333 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC204294  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1943-6-8 18218 Marin Tiburon Comment
  CAS-BOT-BC204587  Eragrostis mexicana subsp. virescens John Thomas Howell 1986-9-3 s.n. Marin Terra Linda Vegetable Garden, Nova Albion & Cermenho Ct, San Rafael Comment
  CAS-BOT-BC205537  Sidalcea hickmanii subsp. viridis John Thomas Howell; Antonio Krapovickas 1954-6-23 30005 Marin Carson Ridge Comment
  CAS-BOT-BC205541  Sidalcea hickmanii subsp. viridis John Thomas Howell 1946-6-23 22120 Marin On Carson Ridge Comment
  CAS-BOT-BC205543  Sidalcea hickmanii subsp. viridis John Thomas Howell 1942-6-21 16997 Marin Carson Ridge Comment
  CAS-BOT-BC205546  Sidalcea hickmanii subsp. viridis John Thomas Howell; Antonio Krapovickas 1954-6-23 30005 Marin Carson Ridge Comment
  CAS-BOT-BC206050  Ribes menziesii John Thomas Howell 1944-7-9 19695 Marin Inverness Ridge Comment
  CAS-BOT-BC20839  Carex garberi John Thomas Howell; J. W. Stacey 1936-6-7 12642 Marin Ledum Swamps on road to Point Reyes. Comment
  CAS-BOT-BC20840  Carex garberi John Thomas Howell 1945-8-19 21423 Marin Near Ledum Swamp. Comment
  CAS-BOT-BC20896  Carex globosa John Thomas Howell 1944-5-21 19491 Marin Lagunitas Meadows. Mt. Tamalpais. Comment
  CAS-BOT-BC20899  Carex globosa John Thomas Howell 1943-5-9 17950 Marin Black Canyon, San Rafael hills. Comment
  CAS-BOT-BC209254  Ribes menziesii John Thomas Howell 1939-5-21 14699 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC209267  Ribes menziesii John Thomas Howell 1943-6-6 18207 Marin Canyon below Muir Woods Comment
  CAS-BOT-BC209274  Ribes menziesii John Thomas Howell 1943-6-6 18207 Marin Canyon below Muir Woods Comment
  CAS-BOT-BC209276  Ribes menziesii John Thomas Howell 1944-3-26 19352 Marin Pines of Inverness Ridge n. of Mt. Vision Comment
  CAS-BOT-BC210250  Cornus sericea John Thomas Howell 1940-9-15 s.n. Marin Stinson Beach Comment
  CAS-BOT-BC21123  Carex leptalea John Thomas Howell 1943-7-4 18254 Marin Ledum Swamp on road to Pt. Reyes. Comment
  CAS-BOT-BC213366  Lathyrus jepsonii subsp. californicus John Thomas Howell 1947-5-18 23174 Marin Fairfax Hills Comment
  CAS-BOT-BC21338  Agoseris grandiflora var. grandiflora John Thomas Howell 1945-6-3 20930 Marin Shell Beach Comment
  CAS-BOT-BC21344  Agoseris grandiflora var. grandiflora John Thomas Howell 1940-5-20 15470 Marin Fairfax Comment
  CAS-BOT-BC21345  Agoseris grandiflora var. grandiflora John Thomas Howell 1940-5-20 15469 Marin Fairfax Comment
  CAS-BOT-BC215001  Lupinus chamissonis John Thomas Howell; et al 1980-6-19 53724 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC215002  Lupinus chamissonis John Thomas Howell; et al 1980-6-19 53723 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC215069  Lupinus chamissonis John Thomas Howell 1939-6-18 14779 Marin Near Mud Lake Comment
  CAS-BOT-BC215070  Lupinus chamissonis John Thomas Howell 1939-6-4 14729 Marin Point Reyes Peninsula Comment
  CAS-BOT-BC215707  Lepechinia calycina John Thomas Howell 1925-4-5 936 Marin Pipeline Trail Comment
  CAS-BOT-BC215882  Calystegia purpurata subsp. purpurata John Thomas Howell 1947-5-8 23139 Marin Sausalito Comment
  CAS-BOT-BC215883  Calystegia purpurata subsp. purpurata John Thomas Howell 1947-5-4 23127 Marin San Rafael Hills Comment
  CAS-BOT-BC215884  Calystegia purpurata subsp. purpurata John Thomas Howell 1945-5-6 20803 Marin San Rafael Hills Comment
  CAS-BOT-BC215885  Calystegia purpurata subsp. purpurata John Thomas Howell 1944-5-28 19527 Marin Between Almonte and Mill Valley Comment
  CAS-BOT-BC215886  Calystegia purpurata subsp. purpurata John Thomas Howell 1940-5-26 15531 Marin Little Carson Falls Comment
  CAS-BOT-BC215888  Calystegia purpurata subsp. purpurata John Thomas Howell 1946-6-16 22070 Marin Inverness Park Comment
  CAS-BOT-BC215889  Calystegia purpurata subsp. purpurata John Thomas Howell 1939-7-2 s.n. Marin Elk Valley Comment
  CAS-BOT-BC215890  Calystegia purpurata subsp. purpurata John Thomas Howell 1939-7-2 s.n. Marin Near Big Lagoon Comment
  CAS-BOT-BC216088  Eriodictyon californicum John Thomas Howell 1944-6-4 19533 Marin Inverness Ridge Comment
  CAS-BOT-BC216089  Eriodictyon californicum John Thomas Howell 1946-5-12 21808 Marin Carson Ridge Comment
  CAS-BOT-BC216090  Eriodictyon californicum John Thomas Howell 1939-6-18 14770 Marin Near Mud Lake Comment
  CAS-BOT-BC218436  Glehnia littoralis subsp. leiocarpa John Thomas Howell 1947-6-18 23279 Marin Near Dillon's Beach. Comment
  CAS-BOT-BC219428  Nemophila parviflora John Thomas Howell 1948-5-31 24322 Marin Devils Gulch near Camp Taylor Comment
  CAS-BOT-BC220171  Monardella sinuata subsp. nigrescens John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True 1980-6-19 53725 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC220412  Monardella purpurea John Thomas Howell 1939-6-25 14791 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC220419  Monardella purpurea John Thomas Howell 1942-7-5 17009 Marin Fern Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC220534  Monardella villosa John Thomas Howell 1946-5-19 21903 Marin Fairfax Comment
  CAS-BOT-BC220538  Monardella villosa John Thomas Howell 1945-7-4 s.n. Marin Inverness Ridge Comment
  CAS-BOT-BC220540  Monardella villosa John Thomas Howell 1947-6-18 23281 Marin North of Dillons Beach Comment
  CAS-BOT-BC22126  Carex harfordii John Thomas Howell; J. W. Stacey 1936-6-7 12643 Marin Ledum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC22129  Carex harfordii John Thomas Howell 1944-7-9 19694 Marin Inverness Ridge. Comment
  CAS-BOT-BC22135  Carex harfordii John Thomas Howell 1944-6-4 19575 Marin Inverness Ridge, west of Inverness. Comment
  CAS-BOT-BC22137  Carex harfordii John Thomas Howell 1944-6-4 19575 Marin Inverness Ridge west of Inverness. Comment
  CAS-BOT-BC22138  Carex harfordii John Thomas Howell 1943-7-4 18266 Marin Near Ledum Swamp. Comment
  CAS-BOT-BC22141  Carex harfordii John Thomas Howell; J. W. Stacey 1936-6-7 12645 Marin Ledum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC22144  Carex harfordii John Thomas Howell 1940-5-26 15537 Marin Little Carson Falls. Comment
  CAS-BOT-BC22147  Carex harfordii John Thomas Howell 1944-5-28 19523 Marin Between Almonte and Mill Valley. Comment
  CAS-BOT-BC221857  Stenotaphrum secundatum John Thomas Howell 1945-7-22 21330 Marin West of Mill Valley on road to Muir Woods Comment
  CAS-BOT-BC222726  Perideridia gairdneri subsp. gairdneri John Thomas Howell 1947-6-18 23272 Marin 3 miles east of Tomales Comment
  CAS-BOT-BC22323  Carex harfordii John Thomas Howell 1945-7-29 21360 Marin Between Bolinas radio station and Rio Honda. Comment
  CAS-BOT-BC223766  Frankenia salina John Thomas Howell 1957-9-15 32951 A Marin Bordering Richardson Bay near Marin City Comment
  CAS-BOT-BC223768  Frankenia salina John Thomas Howell 1945-8-19 s.n. Marin Drakes Estero Comment
  CAS-BOT-BC223770  Frankenia salina John Thomas Howell 1943-7-4 18274 Marin Tomales Bay, Inverness Comment
  CAS-BOT-BC223992  Helianthemum scoparium John Thomas Howell 1944-6-4 19532 Marin Inverness Ridge Comment
  CAS-BOT-BC223996  Helianthemum scoparium John Thomas Howell 1946-7-7 22195 Marin South of Barths Retreat, Mt. Tamalpais Comment
  CAS-BOT-BC223998  Helianthemum scoparium John Thomas Howell 1946-5-12 21809 Marin Carson Ridge Comment
  CAS-BOT-BC224496  Cuscuta californica John Thomas Howell 1939-5-21 14696 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC224516  Ribes menziesii John Thomas Howell 1946-4-14 21613 Marin Near Tomales Comment
  CAS-BOT-BC224727  Calystegia purpurata subsp. saxicola John Thomas Howell 1946-6-9 22013 Marin Pierce Ranch, n. Pt. Reyes Peninsula Comment
  CAS-BOT-BC225291  Gilia capitata subsp. chamissonis John Thomas Howell 1945-6-12 s.n. Marin Pt. Reyes dunes Comment
  CAS-BOT-BC225478  Gilia millefoliata John Thomas Howell 1946-6-9 21997 Marin Abbotts Lagoon Comment
  CAS-BOT-BC226530  Leptosiphon acicularis John Thomas Howell 1938-5-22 13789 Marin San Anselmo Canyon Comment
  CAS-BOT-BC22905  Agoseris heterophylla John Thomas Howell 1946-5-14 21836 Marin Between Barth's Retreat and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC229382  Abronia umbellata John Thomas Howell 1947-5-14 23157 Marin McClure Beach Comment
  CAS-BOT-BC22949  Agoseris heterophylla John Thomas Howell 1947-4-27 23102 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC23216  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1930-7-20 5375 Marin Hills just north of Phoenix Lake Comment
  CAS-BOT-BC23219  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1926-2-28 1653 Marin Rock Spring Trail, Mt. Tamalpais Comment
  CAS-BOT-BC232716  Navarretia rosulata John Thomas Howell 1945-7-15 21308 Marin Near Liberty's Comment
  CAS-BOT-BC232718  Navarretia rosulata John Thomas Howell 1952-9-7 28854 Marin Barths Retreat, Mount Tamalpais Comment
  CAS-BOT-BC232724  Navarretia rosulata John Thomas Howell 1945-7-15 21308 Marin Near Liberty Camp Comment
  CAS-BOT-BC232971  Polypogon australis John Thomas Howell 1967-6-8 42547 Marin Inverness Comment
  CAS-BOT-BC233025  Polypogon interruptus John Thomas Howell 1943-6-6 s.n. Marin Above Muir Woods on RR Grade, Mount Tamalpais Comment
  CAS-BOT-BC233200  Polypogon interruptus John Thomas Howell 1939-6-18 14785 Marin Near Mud Lake Comment
  CAS-BOT-BC233237  Polypogon maritimus John Thomas Howell 1958-6-28 33633 Marin S side of Alpine Lake, near Bon Tempe Dam, Mount Tamalpais Comment
  CAS-BOT-BC23353  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1947-3-2 23038 Marin Above Blythedale Canyon, east side of Mt. Tamalpais. Comment
  CAS-BOT-BC23356  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1943-7-4 18272 Marin West of Inverness Comment
  CAS-BOT-BC23387  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1943-3-7 17881 Marin Hills northeast of San Rafael Comment
  CAS-BOT-BC23388  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1947-3-2 23037 Marin Above Blythedale Canyon, east side of Mt. Tamalpais. Comment
  CAS-BOT-BC23391  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1926-2-22 1642 Marin Inverness Ridge Comment
  CAS-BOT-BC23394  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1947-3-2 23036 Marin Above Blythedale Canyon, east side of Mt. Tamalpais Comment
  CAS-BOT-BC23395  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1939-7-2 14816 Marin Hills SW of Almonte Comment
  CAS-BOT-BC23398  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-6-4 19538 Marin Inverness Ridge Comment
  CAS-BOT-BC23400  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-3-26 19357 Marin Pines west of Inverness, Inverness Ridge. Comment
  CAS-BOT-BC234053  Elymus multisetus John Thomas Howell 1966-4-18 41519 Marin Gully just north of John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC234055  Elymus multisetus John Thomas Howell 1941-6-10 16292 Marin Black Point Comment
  CAS-BOT-BC234056  Elymus multisetus John Thomas Howell 1941-5-25 16231 Marin Between Potrero Meadow and Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC234058  Elymus multisetus John Thomas Howell 1942-6-21 16990 Marin Carson Ridge Comment
  CAS-BOT-BC234059  Elymus multisetus John Thomas Howell 1943-5-15 18072 Marin Tiburon Peninsula Comment
  CAS-BOT-BC234060  Elymus multisetus John Thomas Howell 1941-5-25 16231 Marin Between Potrero Meadow & Mountain Theatre, Mt. Tamalpais Comment
  CAS-BOT-BC234677  Symphoricarpos mollis John Thomas Howell 1939-5-21 s.n. Marin Shelter Cove, Tiburon Comment
  CAS-BOT-BC234680  Symphoricarpos mollis John Thomas Howell 1943-5-15 18088 Marin Tiburon Peninsula Comment
  CAS-BOT-BC236222  Poa secunda subsp. secunda John Thomas Howell 1946-5-16 21895 Marin Angel Island, N side Comment
  CAS-BOT-BC236224  Poa secunda subsp. secunda John Thomas Howell 1943-5-15 18093 Marin Tiburon Peninsula, S end Comment
  CAS-BOT-BC236225  Poa secunda subsp. secunda John Thomas Howell 1943-4-11 17897 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC236908  Chloropyron maritimum subsp. palustre John Thomas Howell 1945-6-30 21257 Marin Stinson Beach Comment
  CAS-BOT-BC238514  Triphysaria floribunda John Thomas Howell 1939-5-28 s.n. Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC238523  Triphysaria floribunda John Thomas Howell 1947-4-23 23074 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC238765  Sambucus nigra subsp. caerulea John Thomas Howell 1949-6-26 25352 Marin Deer Park, Fairfax hills Comment
  CAS-BOT-BC240012  Scribneria bolanderi John Thomas Howell 1946-5-12 21776 Marin South end of Carson Ridge Comment
  CAS-BOT-BC240515  Lonicera hispidula John Thomas Howell 1939-5-21 s.n. Marin S. Tiburon Comment
  CAS-BOT-BC241292  Castilleja latifolia John Thomas Howell 1930-4-20 4738 Marin Pt. Reyes Comment
  CAS-BOT-BC241295  Castilleja latifolia John Thomas Howell 1940-5-20 15515 Marin Pt. Reyes Comment
  CAS-BOT-BC241298  Castilleja latifolia John Thomas Howell 1939-7-2 14826 Marin Ridge between Tennessee Cove and Pirates Cove Comment
  CAS-BOT-BC243625  Setaria pumila John Thomas Howell 1954-10-21 30112 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC244443  Poa annua John Thomas Howell 1946-4-21 21696 Marin Near Point Reyes Lighthouse Comment
  CAS-BOT-BC244527  Poa secunda subsp. secunda John Thomas Howell 1943-4-11 17919 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC246654  Poa howellii John Thomas Howell 1941-5-25 16203 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC246655  Poa howellii John Thomas Howell 1943-4-11 17913 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC246656  Poa howellii John Thomas Howell 1943-4-11 17913 Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC247327  Poa pratensis John Thomas Howell 1941-5-25 16217 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC24830  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1933-3-19 10868 Marin South side of Mt. Tamalpais above Mill Valley Comment
  CAS-BOT-BC24833  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-11-22 20768 Marin Inverness Ridge Comment
  CAS-BOT-BC24836  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1933-3-19 10866 Marin At head of Marin Woods. Comment
  CAS-BOT-BC249140  Castilleja affinis John Thomas Howell 1969-5-5 45567 Marin Near Paradise Cove, Tiburon Peninsula Comment
  CAS-BOT-BC250601  Phalaris minor John Thomas Howell 1939-6-25 14805 Marin South side of Mt. Tamalpais above Cascade Canyon Comment
  CAS-BOT-BC250603  Phalaris minor John Thomas Howell 1944-5-28 19511 Marin Between Manzanita and Almonte Comment
  CAS-BOT-BC250850  Phleum pratense John Thomas Howell 1944-6-25 19645 Marin Santa Venetia Comment
  CAS-BOT-BC252831  Chorizanthe polygonoides var. polygonoides John Thomas Howell 1941-5-25 16229 Marin Between Potrero Meadow and Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC253944  Parapholis incurva John Thomas Howell 1944-5-28 19508 Marin Manzanita Comment
  CAS-BOT-BC253945  Parapholis incurva John Thomas Howell 1945-5-6 20816 Marin Just above high tide, San Rafael Comment
  CAS-BOT-BC253946  Parapholis incurva John Thomas Howell 1945-5-6 20816 Marin Just above high tide, San Rafael Comment
  CAS-BOT-BC254416  Piptatherum miliaceum John Thomas Howell 1976-6-2 51806 Marin In park, Corte Madera Comment
  CAS-BOT-BC254660  Poa douglasii John Thomas Howell 1946-4-21 21687 Marin Near the radio station, Point Reyes Peninsula Comment
  CAS-BOT-BC258837  Phalaris angusta John Thomas Howell 1939-9-3 s.n. Marin Novato Creek Comment
  CAS-BOT-BC258972  Phalaris californica John Thomas Howell 1946-5-12 21827 Marin Carson country Comment
  CAS-BOT-BC258976  Phalaris californica John Thomas Howell 1941-5-25 16218 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC259071  Phalaris lemmonii John Thomas Howell 1945-5-6 20810 Marin San Rafael Hills Comment
  CAS-BOT-BC259074  Phalaris lemmonii John Thomas Howell 1946-4-18 21657 Marin Black Point Comment
  CAS-BOT-BC259187  Eriogonum latifolium John Thomas Howell 1945-7-1 s.n. Marin Tiburon Comment
  CAS-BOT-BC259191  Eriogonum latifolium John Thomas Howell 1939-7-2 14825 Marin Ridge between Tennessee Cove and Pirates Cove Comment
  CAS-BOT-BC259491  Eriogonum luteolum var. caninum John Thomas Howell 1937-7-4 13088 Marin Tiburon Comment
  CAS-BOT-BC259494  Eriogonum luteolum var. caninum John Thomas Howell 1944-7-7 19683 Marin Between Lagunitas Meadows and Fairfax Comment
  CAS-BOT-BC259495  Eriogonum luteolum var. caninum John Thomas Howell 1944-7-7 19680 Marin Above Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC259498  Eriogonum luteolum var. caninum John Thomas Howell 1937-7-4 13088 Marin Tiburon Comment
  CAS-BOT-BC259511  Eriogonum luteolum var. caninum John Thomas Howell 1938-7-3 13944 A Marin At head of Lucas Valley Comment
  CAS-BOT-BC259519  Eriogonum luteolum var. caninum John Thomas Howell 1945-9-2 s.n. Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC259521  Eriogonum luteolum var. caninum John Thomas Howell 1945-9-2 s.n. Marin Black Canyon, San Raphael [Rafael] Hills Comment
  CAS-BOT-BC259927  Nassella lepida John Thomas Howell 1943-5-9 17956 A Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC259931  Nassella lepida John Thomas Howell 1943-5-22 18135 Marin Fairfax hills Comment
  CAS-BOT-BC259933  Nassella lepida John Thomas Howell 1945-5-27 20881 Marin E of Mountain Theater, Mount Tamalpais Comment
  CAS-BOT-BC259934  Nassella lepida John Thomas Howell 1946-5-16 21896 Marin Angel Island, N side Comment
  CAS-BOT-BC259936  Nassella lepida John Thomas Howell 1966-5-25 41538 Marin Just N of garden area, John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC259939  Nassella lepida John Thomas Howell 1944-7-7 19684 Marin Between Lagunitas Meadow and Fairfax Comment
  CAS-BOT-BC259940  Nassella lepida John Thomas Howell 1945-4-29 20796 Marin Fairfax Hills Comment
  CAS-BOT-BC260150  Nassella pulchra John Thomas Howell 1966-4-18 41487 Marin Just S of church, John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC260166  Nassella pulchra John Thomas Howell 1938-5-22 13794 Marin San Anselmo Canyon Comment
  CAS-BOT-BC260168  Nassella pulchra John Thomas Howell 1946-4-18 s.n. Marin Black Point Comment
  CAS-BOT-BC260933  Pleuropogon californicus var. californicus John Thomas Howell 1941-6-10 16280 Marin Near Black Point Comment
  CAS-BOT-BC260950  Pleuropogon californicus var. californicus John Thomas Howell 1944-7-9 19691 Marin Mt. Vision, Inverness Ridge Comment
  CAS-BOT-BC262519  Melica torreyana John Thomas Howell 1939-5-21 14694 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC262528  Melica torreyana John Thomas Howell 1939-5-14 14658 Marin Ross Comment
  CAS-BOT-BC262541  Melica torreyana John Thomas Howell 1939-5-14 14678 Marin Near Collier Spring, Mt. Tamalpais Comment
  CAS-BOT-BC262542  Melica torreyana John Thomas Howell 1941-5-25 16202 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC263960  Viola adunca John Thomas Howell 1939-6-4 14725 Marin Point Reyes Peninsula Comment
  CAS-BOT-BC264158  Melica subulata John Thomas Howell 1946-5-30 21960 Marin Laurel Dell Trail, Mt. Tamalpais Comment
  CAS-BOT-BC264159  Melica subulata John Thomas Howell 1943-5-2 17929 Marin Big Carson Canyon Comment
  CAS-BOT-BC265768  Phalaris aquatica John Thomas Howell No date on label. s.n. Marin Shore of Bolinas Bay just north of Stinson Beach Comment
  CAS-BOT-BC265769  Phalaris aquatica John Thomas Howell 1945-7-1 21266 Marin Tiburon Comment
  CAS-BOT-BC265770  Phalaris aquatica John Thomas Howell 1946-6-13 22018 Marin Ignacio Comment
  CAS-BOT-BC267191  Potamogeton foliosus John Thomas Howell; Zannichillia 1939-9-3 s.n. Marin San Antonio Creek Comment
  CAS-BOT-BC268919  Eriogonum nudum var. auriculatum John Thomas Howell 1941-6-8 16260 Marin Hills ne. of San Rafael Comment
  CAS-BOT-BC268924  Eriogonum nudum var. auriculatum John Thomas Howell 1945-7-8 21288 Marin San Antonio Station Comment
  CAS-BOT-BC269578  Symphoricarpos albus var. laevigatus John Thomas Howell 1933-7-30 11475 Marin Near Inverness Comment
  CAS-BOT-BC269579  Symphoricarpos albus var. laevigatus John Thomas Howell 1939-5-21 s.n. Marin Shelter Cove, Tiburon Comment
  CAS-BOT-BC27203  Arctostaphylos cushingiana f. repens John Thomas Howell 1944-6-4 19537 Marin Inverness Ridge Comment
  CAS-BOT-BC272226  Leymus pacificus John Thomas Howell 1946-5-26 21950 Marin Near radio station, Pt. Reyes Peninsula Comment
  CAS-BOT-BC272228  Leymus pacificus John Thomas Howell 1947-6-4 23222 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC272229  Leymus pacificus John Thomas Howell 1948-6-6 24335 Marin Stinson Beach Comment
  CAS-BOT-BC272275  Leymus pacificus John Thomas Howell 1946-5-26 21950 Marin Near radio station, Pt. Reyes Peninsula Comment
  CAS-BOT-BC273580  Leymus californicus John Thomas Howell 1945-7-15 21299 Marin Fairfax Hills Comment
  CAS-BOT-BC274484  Leymus triticoides John Thomas Howell 1946-6-9 22002 Marin Abbotts Lagoon Comment
  CAS-BOT-BC274486  Leymus triticoides John Thomas Howell 1944-6-25 19637 Marin San Rafael Comment
  CAS-BOT-BC274489  Leymus triticoides John Thomas Howell 1944-5-28 19528 Marin Between Almonte and Mill Valley Comment
  CAS-BOT-BC278323  Festuca californica subsp. californica John Thomas Howell 1943-5-15 18086 Marin Tiburon Peninsula Comment
  CAS-BOT-BC278328  Festuca californica subsp. californica John Thomas Howell 1941-5-25 16205 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC278441  Festuca idahoensis John Thomas Howell 1943-5-9 17963 Marin San Rafael hills Comment
  CAS-BOT-BC278443  Festuca idahoensis John Thomas Howell 1941-5-25 16208 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC278444  Festuca idahoensis John Thomas Howell 1942-6-21 16996 Marin Carson Ridge Comment
  CAS-BOT-BC278446  Festuca idahoensis John Thomas Howell 1946-5-16 21886 Marin Angel Island Comment
  CAS-BOT-BC27846  Calamagrostis ophitidis John Thomas Howell 1941-6-29 16334 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC278821  Festuca occidentalis John Thomas Howell 1946-6-2 21989 Marin Lake Lagunitas, Mt. Tamalpais Comment
  CAS-BOT-BC278822  Festuca occidentalis John Thomas Howell 1943-6-6 18216 Marin Tenderfoot Trail above Mill Valley Comment
  CAS-BOT-BC278823  Festuca occidentalis John Thomas Howell 1945-5-27 20888 Marin Railroad grade at Fern Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC278983  Festuca rubra John Thomas Howell 1943-6-8 18220 Marin Tiburon Comment
  CAS-BOT-BC278984  Festuca rubra John Thomas Howell 1944-4-23 19394 Marin Escalle salt marsh Comment
  CAS-BOT-BC278985  Festuca rubra John Thomas Howell 1941-5-25 16216 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC278988  Festuca rubra John Thomas Howell 1941-6-29 16331 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC278989  Festuca rubra John Thomas Howell 1944-6-4 19561 Marin Near Mt. Vision west of Inverness Comment
  CAS-BOT-BC278997  Festuca rubra John Thomas Howell 1944-6-4 19556 Marin Inverness Ridge west of Inverness Comment
  CAS-BOT-BC279964  Cirsium douglasii var. douglasii John Thomas Howell 1947-6-18 23286 Marin North of Dillons Beach Comment
  CAS-BOT-BC280467  Cirsium quercetorum John Thomas Howell 1943-6-6 18200 Marin Between Mill Valley and Muir Woods Comment
  CAS-BOT-BC280471  Cirsium quercetorum John Thomas Howell 1939-7-2 14819 Marin Elk Valley Comment
  CAS-BOT-BC280754  Holcus lanatus John Thomas Howell 1943-6-13 s.n. Marin Sausalito Comment
  CAS-BOT-BC280755  Holcus lanatus John Thomas Howell 1945-7-29 21355 Marin Bolinas Comment
  CAS-BOT-BC280756  Holcus lanatus John Thomas Howell 1945-7-29 21355 Marin Bolinas Comment
  CAS-BOT-BC281332  Melica harfordii John Thomas Howell 1938-6-19 13928 Marin Near Rattlesnake, Mt Tamalpais Comment
  CAS-BOT-BC281333  Melica harfordii John Thomas Howell 1939-6-25 s.n. Marin West Point, Mt Tamalpais Comment
  CAS-BOT-BC281334  Melica harfordii John Thomas Howell 1941-5-25 16204 Marin Arturo Trail, Mt Tamalpais Comment
  CAS-BOT-BC281335  Melica harfordii John Thomas Howell 1939-5-14 14666 Marin Between Phoenix Lake and Lake Lagunitas Comment
  CAS-BOT-BC282143  Melica geyeri John Thomas Howell 1946-4-14 21608 Marin Near Tomales Comment
  CAS-BOT-BC282145  Melica geyeri John Thomas Howell 1947-5-18 23185 Marin Lagunitas Meadows Comment
  CAS-BOT-BC282146  Melica geyeri John Thomas Howell 1947-5-18 23185 Marin Lagunitas Meadows at foot of Berry Trail Comment
  CAS-BOT-BC282148  Melica geyeri John Thomas Howell 1943-5-2 s.n. Marin Big Carson Canyon Comment
  CAS-BOT-BC282149  Melica geyeri John Thomas Howell 1941-5-25 16227 Marin Potrero Meadow, Mount Tamalpais Comment
  CAS-BOT-BC282151  Melica geyeri John Thomas Howell 1943-5-22 18118 Marin Fairfax Comment
  CAS-BOT-BC282503  Festuca elmeri John Thomas Howell 1944-7-7 s.n. Marin Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC282504  Festuca elmeri John Thomas Howell 1947-5-8 23148 Marin Sausalito Comment
  CAS-BOT-BC282505  Festuca elmeri John Thomas Howell 1943-5-9 17952 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC282506  Festuca elmeri John Thomas Howell 1947-5-4 23121 Marin San Rafael Hills Comment
  CAS-BOT-BC282508  Festuca elmeri John Thomas Howell 1945-5-13 20860 Marin Fairfax Hills n. of Phoenix Lake Comment
  CAS-BOT-BC282509  Festuca elmeri John Thomas Howell 1939-5-14 14665 Marin Between Phoenix Lake and Lake Lagunitas Comment
  CAS-BOT-BC282629  Gastridium phleoides John Thomas Howell 1946-5-16 s.n. Marin Angel Island Comment
  CAS-BOT-BC282800  Glyceria leptostachya John Thomas Howell 1946-6-16 22077 Marin Olema Marshes Comment
  CAS-BOT-BC282876  Hainardia cylindrica John Thomas Howell 1943-5-15 s.n. Marin Tiburon Comment
  CAS-BOT-BC282878  Hainardia cylindrica John Thomas Howell 1946-5-16 s.n. Marin Angel Island Comment
  CAS-BOT-BC282879  Hainardia cylindrica John Thomas Howell 1945-5-27 20880 Marin Above Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC283447  Lolium multiflorum John Thomas Howell 1966-6-9 41553 Marin SE corner of John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC283450  Lolium multiflorum John Thomas Howell 1943-8-5 s.n. Marin Stinson Beach, in salt marsh Comment
  CAS-BOT-BC283521  Leymus X vancouverensis John Thomas Howell 1946-7-4 22177 Marin Dillons Beach Comment
  CAS-BOT-BC283522  Leymus X vancouverensis John Thomas Howell 1946-7-4 22177 Marin Dillons Beach Comment
  CAS-BOT-BC28384  Carex gracilior John Thomas Howell 1946-5-4 21717 Marin East of Aurora School at Sonoma Co. line. Comment
  CAS-BOT-BC28385  Carex gracilior John Thomas Howell 1943-4-11 17898 Marin Black Canyon, San Rafael Hills. Comment
  CAS-BOT-BC28388  Carex gracilior John Thomas Howell; J. W. Stacey 1936-6-7 12634 Marin Woodacre Comment
  CAS-BOT-BC284135  Eragrostis pectinacea var. pectinacea John Thomas Howell 1954-9-23 30109 Marin Milton H. Esberg place, Ross Comment
  CAS-BOT-BC284605  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1944-5-28 s.n. Marin Almonte Comment
  CAS-BOT-BC284996  Hordeum depressum John Thomas Howell 1947-4-13 23057 Marin Tiburon Peninsula Comment
  CAS-BOT-BC285599  Cirsium occidentale var. occidentale John Thomas Howell 1941-5-18 16188 Marin Stinson Beach Comment
  CAS-BOT-BC285607  Cirsium occidentale var. occidentale John Thomas Howell 1941-5-18 16195 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC286131  Conyza canadensis John Thomas Howell 1944-3-26 19349 Marin Pt. Reyes road west of Ledum Swamp Comment
  CAS-BOT-BC286135  Conyza canadensis John Thomas Howell 1939-6-18 14768 Marin Near Mud Lake Comment
  CAS-BOT-BC286377  Cirsium occidentale var. occidentale John Thomas Howell 1939-6-25 14801 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC286523  Cirsium occidentale var. venustum John Thomas Howell 1946-5-14 21845 Marin Along road between Rock Spring and Summit Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC286524  Cirsium occidentale var. venustum John Thomas Howell 1947-7-9 23330 Marin Fish Grade between Phoenix and Lagunitas Lakes, Mt. Tamalpais Comment
  CAS-BOT-BC286525  Cirsium occidentale var. venustum John Thomas Howell 1939-6-25 14790 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC286528  Cirsium occidentale var. venustum John Thomas Howell 1939-6-25 14790 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC28671  Achillea millefolium John Thomas Howell 1946-6-30 22154 Marin Rodeo Lagoon Comment
  CAS-BOT-BC28672  Achillea millefolium John Thomas Howell 1947-5-14 23163 Marin McClure Beach Comment
  CAS-BOT-BC287389  Deinandra corymbosa John Thomas Howell 1939-9-3 15336 Marin Near Black Point Comment
  CAS-BOT-BC287397  Deinandra corymbosa John Thomas Howell 1945-9-2 21461 Marin San Rafael Hills Comment
  CAS-BOT-BC288691  Cirsium quercetorum John Thomas Howell 1946-5-16 21878 A Marin Angel Island Comment
  CAS-BOT-BC288693  Cirsium quercetorum John Thomas Howell 1943-5-30 18180 Marin Summit Ave, Mill Valley Comment
  CAS-BOT-BC288735  Cirsium remotifolium John Thomas Howell 1939-6-25 14796 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC288736  Cirsium remotifolium John Thomas Howell 1939-6-25 14799 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC288747  Cirsium remotifolium John Thomas Howell 1939-6-25 14797 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC289344  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-10 25306 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC289345  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-24 25307 Marin Fort McDowll, Angel Island Comment
  CAS-BOT-BC289346  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-24 25307 Marin Fort McDowll, Angel Island Comment
  CAS-BOT-BC289348  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-6 25294 Marin Hamilton Field Comment
  CAS-BOT-BC289349  Hordeum murinum subsp. glaucum John Thomas Howell 1942-7-12 s.n. Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC289416  Hordeum murinum subsp. leporinum John Thomas Howell 1946-5-12 21764 Marin Between Fairfax and Meadows Club Comment
  CAS-BOT-BC289501  Hordeum brachyantherum subsp. californicum John Thomas Howell 1948-5-31 24328 Marin Devil's Gulch near Camp Taylor Comment
  CAS-BOT-BC289502  Hordeum brachyantherum subsp. californicum John Thomas Howell 1948-5-31 24328 Marin Devil's Gulch near Camp Taylor Comment
  CAS-BOT-BC289503  Hordeum brachyantherum subsp. californicum John Thomas Howell 1966-6-9 41562 Marin South of church, John Thomas Howel Botanical Garden, Tiburon Comment
  CAS-BOT-BC289504  Hordeum brachyantherum subsp. californicum John Thomas Howell 1942-6-21 s.n. Marin San Anselmo Canyon Comment
  CAS-BOT-BC292751  Cirsium occidentale var. venustum John Thomas Howell 1930-7-20 5386 Marin Wheeler Trail above Mill Valley, Mt. Tamalpais Comment
  CAS-BOT-BC29566  Agoseris apargioides var. eastwoodiae John Thomas Howell 1946-5-26 21957 Marin Point Reyes Lighthouse Comment
  CAS-BOT-BC297985  Eriophyllum confertiflorum John Thomas Howell 1950-6-11 26628 Marin Throckmorton Ridge at railroad grade, Mt Tamalpais Comment
  CAS-BOT-BC297988  Eriophyllum confertiflorum John Thomas Howell 1958-6-22 33631 Marin Fern Canyon, Mt Tamalpais Comment
  CAS-BOT-BC297989  Eriophyllum confertiflorum John Thomas Howell 1927-9-9 3094 Marin Between Mill Valley and Muir Woods 213 Comment
  CAS-BOT-BC299921  Erechtites minimus John Thomas Howell 1944-7-30 19857 Marin Almonte Comment
  CAS-BOT-BC299922  Erechtites minimus John Thomas Howell 1944-7-30 19857 Marin Almonte Comment
  CAS-BOT-BC300237  Erigeron reductus var. angustatus John Thomas Howell 1946-7-7 22197 Marin South of Barths Retreat, Mt. Tamalpais Comment
  CAS-BOT-BC301937  Eriophyllum staechadifolium John Thomas Howell 1946-5-16 21862 Marin Angel Island, se. side Comment
  CAS-BOT-BC302620  Gnaphalium palustre John Thomas Howell 1942-7-12 s.n. Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC30422  Achyrachaena mollis John Thomas Howell 1946-4-18 21572 Marin Black Point Comment
  CAS-BOT-BC30424  Achyrachaena mollis John Thomas Howell 1969-5-5 45569 Marin Ring Hill, Tiburon Peninsula Comment
  CAS-BOT-BC304428  Grindelia hirsutula John Thomas Howell 1933-7-30 11482 Marin At Inverness Comment
  CAS-BOT-BC304429  Grindelia hirsutula John Thomas Howell 1933-7-30 11472 Marin At head of Tomales Bay Comment
  CAS-BOT-BC304430  Grindelia hirsutula John Thomas Howell 1933-7-30 11482 Marin At Inverness Comment
  CAS-BOT-BC304437  Grindelia hirsutula John Thomas Howell 1939-9-3 15330 Marin Corte Madera Comment
  CAS-BOT-BC304446  Grindelia hirsutula John Thomas Howell 1933-4-12 10997 Marin Sausalito Hills Comment
  CAS-BOT-BC304458  Grindelia hirsutula John Thomas Howell 1933-7-30 11486 Marin Shores of Bolinas Bay Comment
  CAS-BOT-BC304460  Grindelia hirsutula John Thomas Howell 1933-7-30 11483 Marin Between Inverness and Pt. Reyes Station Comment
  CAS-BOT-BC304467  Grindelia hirsutula John Thomas Howell 1946-11-3 23033 Marin Hamilton Field Comment
  CAS-BOT-BC304473  Grindelia hirsutula J. T. Howell 1933-7-23 s.n. Marin Sausalito Hills Comment
  CAS-BOT-BC304474  Grindelia hirsutula J. T. Howell 1933-7-30 11463 Marin White's Hill, between Fairfax and Woodacre Comment
  CAS-BOT-BC304475  Grindelia hirsutula John Thomas Howell 1925-4-5 896 Marin Pipeline Trail Comment
  CAS-BOT-BC304476  Grindelia hirsutula John Thomas Howell 1933-4-12 10996 Marin Sausalito Hills Comment
  CAS-BOT-BC304478  Grindelia hirsutula John Thomas Howell 1933-7-23 11456 Marin Sausalito Hills Comment
  CAS-BOT-BC304479  Grindelia hirsutula John Thomas Howell 1933-7-23 11455 Marin Sausalito Hills Comment
  CAS-BOT-BC304488  Grindelia hirsutula John Thomas Howell 1933-10-8 11701 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC304489  Grindelia hirsutula John Thomas Howell 1944-7-9 19706 Marin Inverness Ridge Comment
  CAS-BOT-BC304490  Grindelia hirsutula John Thomas Howell 1946-8-23 22889 Marin Pierce Pt. road, Pt. Reyes Peninsula Comment
  CAS-BOT-BC304501  Grindelia hirsutula John Thomas Howell 1947-5-14 23167 Marin McClure Beach Comment
  CAS-BOT-BC306250  Hemizonia congesta subsp. lutescens John Thomas Howell 1946-9-8 22988 Marin Near Ignacio Comment
  CAS-BOT-BC306653  Helenium bigelovii John Thomas Howell 1937-7-4 13086 Marin Tiburon Comment
  CAS-BOT-BC309450  Helenium puberulum John Thomas Howell 1946-6-30 22158 Marin Rodeo Lagoon Comment
  CAS-BOT-BC309609  Hemizonia congesta subsp. lutescens John Thomas Howell 1924-8-31 648 Marin Near Phoenix Lake Comment
  CAS-BOT-BC309636  Hemizonia congesta subsp. lutescens John Thomas Howell 1944-5-14 19455 Marin Pt. Reyes Station Comment
  CAS-BOT-BC30977  Bolboschoenus maritimus John Thomas Howell 1945-7-8 s.n. Marin Burdell Sta. Comment
  CAS-BOT-BC310181  Hesperevax sparsiflora var. brevifolia John Thomas Howell 1930-4-20 4722 Marin 5 miles from Inverness, Pt. Reyes Peninsula Comment
  CAS-BOT-BC310182  Hesperevax sparsiflora var. brevifolia John Thomas Howell 1944-6-4 19566 Marin Near Mt. Vision west of Inverness Comment
  CAS-BOT-BC310220  Hesperevax sparsiflora var. sparsiflora John Thomas Howell 1940-5-26 15530 Marin Little Carson Falls Comment
  CAS-BOT-BC310261  Heterotheca grandiflora John Thomas Howell 1946-9-8 22993 Marin Near Ignacio Comment
  CAS-BOT-BC311042  Heterotheca oregona var. oregona John Thomas Howell 1939-9-3 15332 Marin Corte Madera salt marsh Comment
  CAS-BOT-BC311043  Heterotheca oregona var. oregona John Thomas Howell 1943-9-5 19319 Marin Along railroad south of Mill Valley Comment
  CAS-BOT-BC311177  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1946-8-23 22890 Marin Pierce Pt. road, Pt. Reyes Peninsula Comment
  CAS-BOT-BC311896  Holozonia filipes John Thomas Howell 1945-8-12 21372 Marin Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC314420  Grindelia hirsutula John Thomas Howell 1949-10-9 26300 Marin Salt marsh bordering San Francisco Bay at north end of Tiburon Peninsula Comment
  CAS-BOT-BC314433  Grindelia hirsutula John Thomas Howell 1944-9-24 20743 Marin Stinson Beach Comment
  CAS-BOT-BC314434  Grindelia hirsutula John Thomas Howell 1933-7-30 11483 Marin Head of Tomales Bay Comment
  CAS-BOT-BC314435  Grindelia hirsutula John Thomas Howell 1933-7-30 11483 Marin Between Inverness and Pt. Reyes Station Comment
  CAS-BOT-BC314438  Grindelia hirsutula John Thomas Howell 1933-7-30 11488 Marin 7 miles S of Bolinas Bay on road to Sausalito Comment
  CAS-BOT-BC314439  Grindelia hirsutula John Thomas Howell 1946-5-16 21860 Marin Angel Island, SE side Comment
  CAS-BOT-BC314457  Grindelia hirsutula John Thomas Howell 1946-6-13 22038 Marin Chileno Valley Comment
  CAS-BOT-BC314461  Grindelia hirsutula John Thomas Howell 1945-5-9 20820 Marin Hamilton Field Comment
  CAS-BOT-BC314469  Grindelia hirsutula John Thomas Howell 1945-7-1 21265 Marin Tiburon Comment
  CAS-BOT-BC314470  Grindelia hirsutula John Thomas Howell 1945-7-1 21265 Marin Tiburon Comment
  CAS-BOT-BC31589  Carex luzulina var. luzulina John Thomas Howell 1945-8-19 21422 Marin Near Ledum Swamp. Comment
  CAS-BOT-BC31609  Carex luzulina var. ablata John Thomas Howell 1938-6-5 13896 Marin Mt. Tamalpais, Azalea Flat. Comment
  CAS-BOT-BC321794  Layia gaillardioides John Thomas Howell 1943-5-22 18141 Marin Fairfax hills Comment
  CAS-BOT-BC322599  Micropus amphibolus John Thomas Howell 1943-4-11 17921 Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC322607  Micropus amphibolus John Thomas Howell 1944-4-23 19408 Marin Hills se of Kentfield = Greenbrae Hills Comment
  CAS-BOT-BC322737  Microseris paludosa John Thomas Howell 1944-5-27 19501 Marin Summit Avenue ridge, Mt. Tamalpais Comment
  CAS-BOT-BC322741  Microseris paludosa John Thomas Howell 1946-6-13 22054 Marin East of Dillons Beach Comment
  CAS-BOT-BC322742  Microseris paludosa John Thomas Howell 1946-6-13 22054 Marin East of Dillons Beach Comment
  CAS-BOT-BC322743  Microseris paludosa John Thomas Howell 1937-6-13 13051 Marin Bolinas Comment
  CAS-BOT-BC323977  Layia chrysanthemoides John Thomas Howell 1944-5-14 19474 Marin Chileno Valley Comment
  CAS-BOT-BC324138  Lessingia hololeuca John Thomas Howell 1926-9-9 2192 Marin Baltimore Park Comment
  CAS-BOT-BC324140  Lessingia hololeuca John Thomas Howell 1926-10-20 2223 Marin Corte Madera Comment
  CAS-BOT-BC324162  Lessingia hololeuca John Thomas Howell 1946-9-8 22992 Marin Near Ignacio Comment
  CAS-BOT-BC324200  Lessingia micradenia var. micradenia John Thomas Howell 1927-5-8 2360 Marin Phoenix Lake Comment
  CAS-BOT-BC324402  Lasthenia californica subsp. macrantha John Thomas Howell 1930-4-20 4739 Marin Pt. Reyes Comment
  CAS-BOT-BC32740  Ceanothus gloriosus var. porrectus John Thomas Howell 1939-6-4 14710 Marin Inverness Ridge on road to Pt. Reyes Comment
  CAS-BOT-BC327983  Pentachaeta alsinoides John Thomas Howell 1947-4-27 23099 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC327984  Pentachaeta alsinoides John Thomas Howell 1947-4-27 23099 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC327985  Pentachaeta alsinoides John Thomas Howell 1947-5-4 23118 Marin San Rafael Hills Comment
  CAS-BOT-BC34034  Carex brevicaulis John Thomas Howell 1946-4-21 21683 Marin Near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC34037  Carex brevicaulis John Thomas Howell 1944-3-26 19345 Marin Inverness Ridge. Above Ledum Swamp. Comment
  CAS-BOT-BC342213  Logfia filaginoides John Thomas Howell 1946-5-12 21800 Marin Carson Ridge Comment
  CAS-BOT-BC342214  Logfia filaginoides John Thomas Howell 1969-5-5 45574 Marin Ring Hill, Tiburon Peninsula Comment
  CAS-BOT-BC342627  Madia anomala John Thomas Howell 1946-5-25 21932 Marin Greenbrae Hills Comment
  CAS-BOT-BC342631  Madia anomala John Thomas Howell 1943-5-22 18136 Marin Fairfax hills Comment
  CAS-BOT-BC342632  Madia anomala John Thomas Howell 1943-5-22 18136 Marin Fairfax hills Comment
  CAS-BOT-BC342633  Madia anomala John Thomas Howell 1941-6-10 16284 Marin Black Point Comment
  CAS-BOT-BC343087  Madia gracilis John Thomas Howell 1946-5-25 21931 Marin Greenbrae Hills Comment
  CAS-BOT-BC343716  Madia elegans John Thomas Howell 1944-5-14 19472 Marin Between Salmon Creek and Chileno Valley Comment
  CAS-BOT-BC34390  Carex cusickii John Thomas Howell 1958-6-28 33641 Marin Willow Meadow, Mt. Tamalpais. Comment
  CAS-BOT-BC34393  Carex cusickii John Thomas Howell 1938-6-5 13902 Marin Rock Spring, Mt. Tamalpais. Comment
  CAS-BOT-BC348741  Microseris bigelovii John Thomas Howell 1943-5-22 18150 Marin Fairfax Hills Comment
  CAS-BOT-BC348742  Microseris bigelovii John Thomas Howell 1946-5-19 21910 Marin Meadows Club, Fairfax Hills Comment
  CAS-BOT-BC348745  Microseris bigelovii John Thomas Howell 1946-5-16 21859 Marin Angel Island, se. side Comment
  CAS-BOT-BC348751  Microseris bigelovii J. T. Howell 1946-5-19 21910 Marin Meadows Club, Fairfax Hills Comment
  CAS-BOT-BC348752  Microseris bigelovii J. T. Howell 1943-5-22 18150 Marin Fairfax Hills Comment
  CAS-BOT-BC348925  Microseris douglasii subsp. douglasii John Thomas Howell 1946-5-12 21785 Marin Carson Ridge Comment
  CAS-BOT-BC348926  Microseris douglasii subsp. douglasii John Thomas Howell 1947-5-18 23175 Marin Fairfax Hills Comment
  CAS-BOT-BC348928  Microseris bigelovii John Thomas Howell 1944-5-7 19441 Marin Baltimore Park Comment
  CAS-BOT-BC348930  Microseris douglasii subsp. douglasii John Thomas Howell 1946-5-14 21837 Marin Between Barth's Retreat and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC348944  Microseris douglasii subsp. douglasii J. T. Howell 1946-5-12 21785 Marin Carson Ridge Comment
  CAS-BOT-BC348945  Microseris douglasii subsp. douglasii J. T. Howell 1939-5-21 s.n. Marin South Tiburon Comment
  CAS-BOT-BC35003  Carex densa John Thomas Howell 1938-6-5 13903 Marin Rock Spring, Mt. Tamalpais. Comment
  CAS-BOT-BC35009  Carex densa John Thomas Howell 1943-5-22 18152 Marin Lagunitas Meadows. Comment
  CAS-BOT-BC35012  Carex densa John Thomas Howell; J. W. Stacey 1936-6-7 12659 Marin Mill Valley. Comment
  CAS-BOT-BC35017  Carex densa John Thomas Howell 1943-5-15 18076 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC35018  Carex densa John Thomas Howell 1943-5-15 18077 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC35020  Carex densa John Thomas Howell 1944-4-23 19402 Marin Hills SE of Kentfield. Comment
  CAS-BOT-BC35023  Carex densa John Thomas Howell 1945-5-9 20848 Marin Ignacio. Comment
  CAS-BOT-BC35026  Carex densa John Thomas Howell 1946-6-2 s.n. Marin Mt. Tamalpais. Potrero Meadow. Comment
  CAS-BOT-BC35029  Carex densa John Thomas Howell 1966-4-6 41468 Marin John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC355477  Lasthenia glaberrima John Thomas Howell 1946-5-4 21719 Marin East of Aurora School at Sonoma Co. line Comment
  CAS-BOT-BC356726  Pseudognaphalium californicum John Thomas Howell 1939-7-2 14829 Marin Ridge between Tennessee Cove and Pirates Cove Comment
  CAS-BOT-BC356729  Pseudognaphalium californicum John Thomas Howell 1941-5-18 s.n. Marin Stinson Beach Comment
  CAS-BOT-BC36113  Lithocarpus densiflorus var. densiflorus John Thomas Howell 1947-5-25 23206 Marin Mt. Tamalpais, Berry Trail Comment
  CAS-BOT-BC361945  Psilocarphus tenellus John Thomas Howell 1946-5-12 21793 Marin Carson Ridge Comment
  CAS-BOT-BC361948  Psilocarphus tenellus John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True 1980-6-19 53728 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC363328  Senecio aronicoides John Thomas Howell 1948-5-22 24306 Marin East Peak, near top, Mt. Tamalpais Comment
  CAS-BOT-BC363329  Senecio aronicoides John Thomas Howell 1925-4-5 922 Marin Pipeline Trail Comment
  CAS-BOT-BC363711  Senecio hydrophilus John Thomas Howell 1946-9-20 23014 Marin Laguna in Chileno Valley Comment
  CAS-BOT-BC364231  Senecio sylvaticus John Thomas Howell 1947-10-19 24192 Marin Strand of Alpine Lake Comment
  CAS-BOT-BC36466  Chrysolepis chrysophylla var. minor John Thomas Howell 1947-7-6 23327 Marin Eldridge Grade above Phoenix Lake, Mt. Tamalpais Comment
  CAS-BOT-BC365042  Solidago velutina subsp. californica John Thomas Howell 1945-9-2 21458 Marin San Rafael Hills Comment
  CAS-BOT-BC365450  Solidago elongata John Thomas Howell 1946-6-30 22155 Marin Rodeo Lagoon Comment
  CAS-BOT-BC365862  Soliva sessilis John Thomas Howell 1969-4-27 45554 Marin San Rafael Hills near McNears Beach Comment
  CAS-BOT-BC366967  Lasthenia minor John Thomas Howell 1930-4-20 4733 Marin Pt Reyes Comment
  CAS-BOT-BC374826  Stebbinsoseris heterocarpa John Thomas Howell 1946-5-12 s.n. Marin Fairfax Country Club Comment
  CAS-BOT-BC374829  Stebbinsoseris heterocarpa John Thomas Howell 1947-4-27 23078 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC375221  Stephanomeria elata John Thomas Howell 1945-7-15 21296 Marin Fairfax Hills Comment
  CAS-BOT-BC375222  Stephanomeria elata John Thomas Howell 1945-9-2 21456 Marin San Rafael Hills Comment
  CAS-BOT-BC375223  Stephanomeria elata John Thomas Howell 1944-9-24 20749 Marin East side of Bolinas Lagoon Comment
  CAS-BOT-BC375225  Stephanomeria elata John Thomas Howell 1939-8-27 15321 Marin Near Phoenix Lake Comment
  CAS-BOT-BC375827  Stephanomeria virgata John Thomas Howell 1939-10-15 15378 Marin Fairfax Comment
  CAS-BOT-BC37915  Cardamine oligosperma John Thomas Howell 1946-5-4 21733 Marin Dillons Beach. Comment
  CAS-BOT-BC381920  Uropappus lindleyi John Thomas Howell 1947-4-27 23082 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC382960  Wyethia angustifolia John Thomas Howell 1925-4-5 897 Marin Pipeline Trail Comment
  CAS-BOT-BC383301  Wyethia glabra John Thomas Howell 1945-5-9 20855 Marin Between Ignacio and Novato Comment
  CAS-BOT-BC38521  Arctostaphylos montana subsp. montana John Thomas Howell 1926-2-28 1655 Marin Mt. Tamalpais on south side. Comment
  CAS-BOT-BC38522  Arctostaphylos montana subsp. montana John Thomas Howell 1927-8-27 3039 Marin On Rock Spring Trail, w. of West Point, Mt. Tamalpais. 548 Comment
  CAS-BOT-BC38540  Arctostaphylos montana subsp. montana John Thomas Howell 1930-7-20 5380 Marin Near Phoenix Lake. Comment
  CAS-BOT-BC390344  Spergularia macrotheca var. macrotheca John Thomas Howell 1945-6-3 20938 Marin Shell Beach Comment
  CAS-BOT-BC390345  Spergularia macrotheca var. macrotheca John Thomas Howell 1944-5-28 19506 Marin Manzanita Comment
  CAS-BOT-BC390814  Spergularia marina John Thomas Howell 1944-5-28 19507 Marin Manzanita Comment
  CAS-BOT-BC390816  Spergularia marina John Thomas Howell 1944-6-25 19649 Marin Santa Venetia Comment
  CAS-BOT-BC390818  Spergularia marina John Thomas Howell 1939-4-23 14608 Marin Blythedale Canyon, Mill Valley Comment
  CAS-BOT-BC390819  Spergularia marina John Thomas Howell 1944-9-10 20735 Marin Shell Beach north of Inverness Comment
  CAS-BOT-BC390821  Spergularia marina John Thomas Howell 1944-9-24 20757 Marin East side Bolinas Lagoon Comment
  CAS-BOT-BC390822  Spergularia marina John Thomas Howell 1945-5-9 20851 Marin Ignacio Comment
  CAS-BOT-BC390823  Spergularia marina John Thomas Howell 1944-5-7 19429 Marin Greenbrae Comment
  CAS-BOT-BC397712  Stellaria nitens John Thomas Howell 1947-4-27 23084 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC397713  Stellaria nitens John Thomas Howell 1947-4-27 23084 Marin Bald Mt. W of San Anselmo Comment
  CAS-BOT-BC400438  Aristolochia californica John Thomas Howell 1945-5-13 20864 Marin Deer Park near Fairfax Comment
  CAS-BOT-BC40160  Arctostaphylos montana subsp. montana John Thomas Howell 1947-5-25 23200 Marin Mt. Tamalpais, Simmons Trail Comment
  CAS-BOT-BC40223  Caulanthus lasiophyllus John Thomas Howell 1940-5-12 15429 Marin Between Little Carson and Carson Ridge. Comment
  CAS-BOT-BC40226  Caulanthus lasiophyllus John Thomas Howell 1943-4-11 17904 Marin Black Canyon, San Rafael hills. Comment
  CAS-BOT-BC40229  Caulanthus lasiophyllus John Thomas Howell 1966-4-18 41510 Marin Gully just north of John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC40231  Caulanthus lasiophyllus John Thomas Howell 1969-5-5 45573 Marin Ring Hill, Tiburon Peninsula. Comment
  CAS-BOT-BC403201  Eschscholzia californica John Thomas Howell 1944-6-4 19554 Marin Inverness Ridge west of Inverness Comment
  CAS-BOT-BC403844  Hesperocnide tenella John Thomas Howell 1948-5-31 24318 Marin Nicasio Comment
  CAS-BOT-BC403845  Hesperocnide tenella John Thomas Howell 1944-7-9 19698 Marin Inverness Ridge Comment
  CAS-BOT-BC403944  Urtica dioica subsp. gracilis John Thomas Howell 1944-6-4 19559 Marin Near Mt. Vision west of Inverness Comment
  CAS-BOT-BC404151  Urtica dioica subsp. holosericea John Thomas Howell 1966-7-20 41991 Marin Area adjacent to the John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC404153  Urtica dioica subsp. holosericea John Thomas Howell 1939-9-10 15360 Marin Stinson Beach Comment
  CAS-BOT-BC413524  Persicaria amphibia John Thomas Howell 1947-6-18 23271 Marin Laguna, Chileno Valley Comment
  CAS-BOT-BC418877  Persicaria hydropiperoides John Thomas Howell 1946-6-20 22107 Marin 4 miles n. of Bolinas Comment
  CAS-BOT-BC419344  Persicaria punctata John Thomas Howell 1939-8-27 15317 Marin Phoenix Lake Comment
  CAS-BOT-BC419345  Persicaria punctata John Thomas Howell 1946-6-30 22167 Marin Rodeo Lagoon Comment
  CAS-BOT-BC421215  Pterostegia drymarioides John Thomas Howell 1945-5-6 20806 Marin San Rafael Hills Comment
  CAS-BOT-BC421528  Rumex crassus John Thomas Howell 1946-6-9 22011 Marin Pierce Ranch, n. Pt. Reyes Peninsula Comment
  CAS-BOT-BC421530  Rumex crassus John Thomas Howell 1946-6-30 22137 Marin Rodeo Lagoon Comment
  CAS-BOT-BC422807  Papaver californicum John Thomas Howell 1946-5-30 21962 Marin Little Carson Canyon Comment
  CAS-BOT-BC427749  Crassula connata John Thomas Howell 1946-3-24 21582 Marin Carson country Comment
  CAS-BOT-BC428000  Dudleya caespitosa John Thomas Howell 1939-7-2 14824 A Marin Elk Valley Comment
  CAS-BOT-BC428301  Dudleya farinosa John Thomas Howell 1939-5-21 14692 A Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC430615  Lithophragma affine John Thomas Howell 1946-5-14 21831 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC433931  Rumex salicifolius John Thomas Howell 1946-6-30 22136 Marin Rodeo Lagoon Comment
  CAS-BOT-BC433934  Rumex salicifolius John Thomas Howell 1946-7-7 22204 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC434104  Rumex transitorius John Thomas Howell 1946-6-30 22139 Marin Rodeo Lagoon Comment
  CAS-BOT-BC434106  Rumex transitorius John Thomas Howell 1945-7-29 21336 Marin Bolinas Comment
  CAS-BOT-BC435626  Lithophragma heterophyllum John Thomas Howell 1939-5-14 14677 Marin Berry Trail, Mt. Tamalpais Comment
  CAS-BOT-BC435651  Lithophragma heterophyllum John Thomas Howell 1944-4-13 19372 Marin Big Rock Ridge west of Hamilton Field Comment
  CAS-BOT-BC435653  Lithophragma heterophyllum John Thomas Howell 1943-4-11 17907 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC436399  Calystegia occidentalis subsp. occidentalis John Thomas Howell 1946-6-20 22092 Marin Muir Beach Comment
  CAS-BOT-BC436405  Calystegia subacaulis John Thomas Howell 1944-4-23 19410 Marin SE of Kentfield Comment
  CAS-BOT-BC437003  Acaena pinnatifida var. californica John Thomas Howell 1925-4-5 919 Marin Pipeline Trail Comment
  CAS-BOT-BC438427  Calandrinia ciliata John Thomas Howell 1940-5-20 15503 Marin Pt. Reyes Comment
  CAS-BOT-BC439220  Claytonia exigua subsp. exigua John Thomas Howell 1940-5-12 15432 Marin South end of Carson Ridge Comment
  CAS-BOT-BC439231  Claytonia exigua subsp. exigua John Thomas Howell 1946-5-19 21917 Marin Carson Ridge Comment
  CAS-BOT-BC439234  Claytonia exigua subsp. exigua John Thomas Howell 1944-4-2 19367 Marin Bolinas Ridge Comment
  CAS-BOT-BC443591  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1966-4-18 41512 Marin Gully just north of John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC443592  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1946-4-13 21604 Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC445523  Damasonium californicum John Thomas Howell 1946-5-4 21700 Marin East of Aurora School at Sonoma Co. line Comment
  CAS-BOT-BC44696  Arctostaphylos sensitiva John Thomas Howell 1950-3-28 26306 Marin Mt. Tamalpais - near Mountain Home Comment
  CAS-BOT-BC45152  Anaphalis margaritacea John Thomas Howell 1939-7-2 14835 Marin Pirates Cove Comment
  CAS-BOT-BC451611  Lilaea scilloides John Thomas Howell 1944-5-28 19529 Marin Between Almonte and Mill Valley Comment
  CAS-BOT-BC451613  Lilaea scilloides John Thomas Howell 1946-5-4 21720 Marin East of Aurora School at Sonoma Co. line Comment
  CAS-BOT-BC451824  Triglochin maritima John Thomas Howell 1945-8-19 21435 Marin At head of Drakes Bay Comment
  CAS-BOT-BC451845  Triglochin maritima John Thomas Howell 1944-5-28 19519 Marin Almonte Comment
  CAS-BOT-BC451846  Triglochin maritima John Thomas Howell 1944-5-7 19449 Marin Larkspur salt marsh Comment
  CAS-BOT-BC451849  Triglochin maritima John Thomas Howell 1944-4-23 19392 Marin Escalle salt marsh Comment
  CAS-BOT-BC451851  Triglochin maritima John Thomas Howell 1945-6-30 21256 Marin Stinson Beach Comment
  CAS-BOT-BC451853  Triglochin maritima John Thomas Howell 1944-5-28 19509 Marin Manzanita Comment
  CAS-BOT-BC45636  Quercus agrifolia John Thomas Howell 1926-9-9 2190 Marin hills ne. of San Rafael Comment
  CAS-BOT-BC46782  Arctostaphylos uva-ursi John Thomas Howell 1949-5-15 25319 Marin Inverness Ridge west of Inverness Comment
  CAS-BOT-BC46787  Arctostaphylos uva-ursi John Thomas Howell 1944-3-26 19350 Marin west of Ledum Swamp, Pt. Reyes Comment
  CAS-BOT-BC46788  Arctostaphylos uva-ursi John Thomas Howell 1943-7-4 18270 Marin near Ledum Marsh Comment
  CAS-BOT-BC46804  Arctostaphylos virgata John Thomas Howell 1926-2-22 1640 Marin Inverness Ridge Comment
  CAS-BOT-BC46805  Arctostaphylos virgata John Thomas Howell 1933-3-19 10867 Marin head of Muir Woods, Mt. Tamalpais Comment
  CAS-BOT-BC46824  Arctostaphylos virgata John Thomas Howell 1944-3-26 19342 Marin Inverness Ridge Comment
  CAS-BOT-BC46854  Arctostaphylos virgata John Thomas Howell 1930-3-9 4554 Marin Road to Point Reyes Comment
  CAS-BOT-BC47436  Arctostaphylos viscida subsp. viscida John Thomas Howell 1945-1-21 20772 Marin San Rafael Hills Comment
  CAS-BOT-BC49147  Ceanothus cuneatus var. ramulosus John Thomas Howell 1941-6-29 16345 Marin Rock Spring Trail, Mt. Tamalpais Comment
  CAS-BOT-BC49148  Ceanothus cuneatus var. ramulosus John Thomas Howell 1930-12-28 5718 Marin Slope of Mt. Tamalpais above Mill Valley Comment
  CAS-BOT-BC49677  Ceanothus cuneatus var. ramulosus John Thomas Howell 1926-2-28 1647 Marin South side of Mt. Tamalpais Comment
  CAS-BOT-BC49957  Ceanothus gloriosus var. gloriosus John Thomas Howell 1964-3-19 s.n. Marin Tomales Bay State Park above Hearts Desire Beach Comment
  CAS-BOT-BC49958  Ceanothus gloriosus var. gloriosus John Thomas Howell 1964-3-19 s.n. Marin Tomales Bay State Park above Hearts Desire Beach Comment
  CAS-BOT-BC49989  Ceanothus gloriosus var. porrectus John Thomas Howell 1944-6-4 19535 Marin Inverness Ridge Comment
  CAS-BOT-BC49990  Ceanothus gloriosus var. porrectus John Thomas Howell 1949-5-15 25314 Marin Pine woods west of Inverness Comment
  CAS-BOT-BC50661  Ceanothus jepsonii John Thomas Howell 1940-5-12 15434 Marin South end of Carson Ridge Comment
  CAS-BOT-BC50662  Ceanothus jepsonii John Thomas Howell 1944-4-2 19368 Marin Mt. Tamalpais - SW of Lanel Dell Comment
  CAS-BOT-BC50949  Ceanothus foliosus var. foliosus John Thomas Howell 1946-5-25 21942 Marin Hills w. of Corte Madera Comment
  CAS-BOT-BC5246  Toxicoscordion fontanum John Thomas Howell 1936-6-7 12656 Marin near Bootjack, Mt. Tamalpais. Comment
  CAS-BOT-BC52899  Ceanothus velutinus John Thomas Howell 1944-4-16 19389 Marin Mt. Tamalpais - Corte Madera Ridge Comment
  CAS-BOT-BC52935  Ceanothus thyrsiflorus John Thomas Howell 1927-4-23 2349 Marin In canyon just to east of Muir Woods along Murir Woods-Mill Valley Road. 121 Comment
  CAS-BOT-BC52937  Ceanothus thyrsiflorus John Thomas Howell 1930-12-28 5714 Marin Lower slopes of Mt. Tamalpais, Mill Valley Comment
  CAS-BOT-BC57546  Equisetum telmateia John Thomas Howell 1946-4-14 21615 Marin Near Tomales Comment
  CAS-BOT-BC57905  Equisetum arvense John Thomas Howell 1946-4-14 21612 Marin Near Tomales. Comment
  CAS-BOT-BC57908  Equisetum arvense John Thomas Howell 1947-6-4 23218 Marin Pt. Reyes Peninsula. Comment
  CAS-BOT-BC59950  Rhamnus crocea John Thomas Howell 1941-6-8 16266 Marin Hills ne. of San Rafael. Comment
  CAS-BOT-BC6019  Rumex salicifolius f. ecallosus John Thomas Howell 1943-6-13 18235 Marin Sausalito Comment
  CAS-BOT-BC60262  Lunaria annua John Thomas Howell 1939-4-23 14601 Marin Mill Valley. Blythedale Canyon. Comment
  CAS-BOT-BC61167  Streptanthus batrachopus John Thomas Howell 1939-5-14 14681 Marin East of Collier Spring, Mount Tamalpais. Comment
  CAS-BOT-BC61168  Streptanthus batrachopus John Thomas Howell 1939-5-14 14681 Marin East of Collier Spring, Mount Tamalpais. Comment
  CAS-BOT-BC61171  Streptanthus batrachopus John Thomas Howell 1946-6-23 22122 Marin Carson Ridge. Comment
  CAS-BOT-BC61174  Streptanthus batrachopus John Thomas Howell 1945-6-10 20943 Marin South of Barths Retreat. Mount Tamalpais. Comment
  CAS-BOT-BC61175  Streptanthus batrachopus John Thomas Howell 1941-7-6 16348 Marin Between Camp Zeische and Barth's Retreat, Mount Tamalpais. Comment
Read comments
Mar 22 2019
  CAS-BOT-BC614  Dicentra formosa subsp. formosa J. T. Howell 1944-3-26 19351 Marin West of Ledum Swap, Pt. Reyes. Comment
  CAS-BOT-BC62540  Quercus chrysolepis John Thomas Howell 1956-9-23 31878 Marin Near Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC62707  Quercus X chasei John Thomas Howell 1946-12-22 23035 Marin Green Brae Hills Comment
  CAS-BOT-BC62779  Quercus berberidifolia John Thomas Howell 1945-7-15 21302 Marin Fairfax Hills near Camp Lilienthal Comment
  CAS-BOT-BC64328  Ceanothus gloriosus subsp. exaltatus John Thomas Howell 1944-4-2 19361 Marin Bolinas Ridge. Comment
  CAS-BOT-BC65854  Aspidotis carlotta-halliae John Thomas Howell 1943-4-3 s.n. Marin Tiburon Peninsula near south end Comment
  CAS-BOT-BC65855  Aspidotis carlotta-halliae John Thomas Howell 1962-2-5 37077 Marin on Troop 80 Trail just east of Rattlesnake Camp, Mt. Tamalpais Comment
  CAS-BOT-BC65857  Aspidotis carlotta-halliae John Thomas Howell 1967-3-5 42037 Marin Near Rattlesnake Camp, Mt. Tamalpais Comment
  CAS-BOT-BC65858  Aspidotis carlotta-halliae John Thomas Howell 1967-3-5 42037 Marin near Rattlesnake Camp, Mt. Tamalpais 335 Comment
  CAS-BOT-BC65860  Aspidotis carlotta-halliae John Thomas Howell 1967-3-5 42037 Marin near Rattlesnake Camp, Mt. Tamalpais Comment
  CAS-BOT-BC66953  Thysanocarpus laciniatus John Thomas Howell 1944-4-13 19378 Marin Big Rock Ridge west of Hamilton Field. Comment
  CAS-BOT-BC67584  Pellaea mucronata John Thomas Howell 1950-4-30 26310 Marin East peak Mt. Tamalpais Comment
  CAS-BOT-BC68172  Cheilanthes intertexta John Thomas Howell 1943-3-7 17882 Marin Hills northeast of San Rafael Comment
  CAS-BOT-BC69749  Selaginella wallacei John Thomas Howell 1926-9-26 2193 Marin Near head of Muir Woods. Comment
  CAS-BOT-BC69925  Isoetes nuttallii John Thomas Howell 1943-5-9 17949 Marin San Rafael. Comment
  CAS-BOT-BC70907  Dryopteris arguta John Thomas Howell 1948-6-6 24337 Marin Steep Ravine, Mt. Tamalpais Comment
  CAS-BOT-BC72189  Polystichum dudleyi John Thomas Howell 1939-5-14 14664 Marin Between Phoenix Lake and Lake Lagunitas Comment
  CAS-BOT-BC73965  Turritis glabra John Thomas Howell 1941-5-25 16197 Marin Near Bootjack, Mount Tamalpais. Comment
  CAS-BOT-BC7406  Melica geyeri var. aristulata John Thomas Howell 1943-4-11 17906 Marin San Rafael Hills, Black Canyon Comment
  CAS-BOT-BC74188  Raphanus raphanistrum John Thomas Howell 1988-8-8 s.n. Marin Terra Linda Vegetable Garden. San Rafael. Comment
  CAS-BOT-BC74546  Rorippa curvisiliqua John Thomas Howell 1946-9-20 s.n. Marin East of Aurora School. Comment
  CAS-BOT-BC75820  Berberis pinnata John Thomas Howell 1926-2-21 1632 Marin Point Reyes. Comment
  CAS-BOT-BC7629  Schoenoplectus acutus var. occidentalis John Thomas Howell 1944-9-24 20747 Marin Stinson Beach. Comment
  CAS-BOT-BC7642  Bolboschoenus maritimus John Thomas Howell 1945-8-19 21438 Marin Head of Drakes Bay. Comment
  CAS-BOT-BC7645  Bolboschoenus maritimus John Thomas Howell 1945-8-19 21438 Marin Head of Drakes Bay. Comment
  CAS-BOT-BC78985  Pinus muricata John Thomas Howell 1944-3-26 19358 Marin Inverness Ridge west of Inverness Comment
  CAS-BOT-BC79765  Quercus durata John Thomas Howell 1945-4-17 s.n. Marin Windswept Hill above Tiburon Comment
  CAS-BOT-BC80686  Cupressus macrocarpa John Thomas Howell 1959-11-4 35103 Marin Sausalito. Comment
  CAS-BOT-BC81406  Torreya californica John Thomas Howell 1948-5-16 24303 Marin Near top of Eldridge Grade, Mt. Tamalpais Comment
  CAS-BOT-BC81411  Torreya californica John Thomas Howell 1948-5-16 24304 Marin Near top of Eldridge Grade, Mt. Tamalpais Comment
  CAS-BOT-BC82453  Arnica discoidea John Thomas Howell 1950-6-4 26621 Marin Blithedale Canyon, Mill Valley Comment
  CAS-BOT-BC82456  Arnica discoidea John Thomas Howell 1946-5-12 21823 Marin Carson country Comment
  CAS-BOT-BC83442  Ranunculus lobbii John Thomas Howell 1947-6-4 s.n. Marin Radio Station, Point Reyes Peninsula. Comment
  CAS-BOT-BC83590  Poa pratensis subsp. pratensis J. T. Howell 1986-4-22 s.n. Marin San Rafael. Laas Gallinas Ave., near Nova Albion Way. Comment
  CAS-BOT-BC8365  Lupinus marinensis John Thomas Howell 1938-5-22 13787 Marin San Anselmo Canyon Comment
  CAS-BOT-BC84931  Artemisia californica John Thomas Howell 1936-7-26 12661 Marin Dillon's Beach Comment
  CAS-BOT-BC84932  Artemisia californica John Thomas Howell 1946-12-22 23034 Marin Greenbrae Hills Comment
  CAS-BOT-BC85189  Torreya californica John Thomas Howell 1948-5-16 24303 Marin Mt. Tamalpais - near top of Eldridge Grade Comment
  CAS-BOT-BC85476  Cupressus sargentii John Thomas Howell 1926-2-28 1656 Marin Mt. Tamalpais Comment
  CAS-BOT-BC87244  Streptanthus glandulosus subsp. niger John Thomas Howell 1950-4-16 26308 Marin Tiburon. Comment
  CAS-BOT-BC87245  Streptanthus glandulosus subsp. niger John Thomas Howell 1966-5-25 41534 Marin John Thomas Howell Botanical Garden. Just north of garden area. Comment
  CAS-BOT-BC87256  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1940-5-12 15425 Marin Between Little Carson and Carson Ridge. Comment
  CAS-BOT-BC87259  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-6-9 13907 Marin Mount Tamalpais. Near Rock Spring. Comment
  CAS-BOT-BC87261  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-6-19 13922 Marin Mount Tamalpais. Head of Steep Ravine. Comment
  CAS-BOT-BC87262  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1946-5-12 21815 Marin Carson Country. Comment
  CAS-BOT-BC87277  Streptanthus glandulosus subsp. secundus John Thomas Howell 1943-5-9 17976 Marin San Rafael Hills. Comment
  CAS-BOT-BC87278  Streptanthus glandulosus subsp. secundus John Thomas Howell 1943-5-9 17976 Marin San Rafael Hills. Comment
  CAS-BOT-BC87281  Streptanthus glandulosus subsp. secundus John Thomas Howell 1942-6-21 s.n. Marin Carson Ridge. Comment
  CAS-BOT-BC88481  Thysanocarpus curvipes John Thomas Howell 1944-4-13 19377 Marin Big Rock Ridge west of Hamilton Field. Comment
  CAS-BOT-BC88484  Thysanocarpus curvipes John Thomas Howell 1946-4-13 21598 Marin Mount Tamalpais. Summit Meadow to Rock Spring. Comment
  CAS-BOT-BC88487  Thysanocarpus curvipes John Thomas Howell 1947-4-27 23105 Marin Bald Mountain west of San Anselmo. Comment
  CAS-BOT-BC89530  Lepidium lasiocarpum John Thomas Howell 1947-6-18 23277 Marin Dillons Beach. Comment
  CAS-BOT-BC9004  Delphinium decorum John Thomas Howell 1949-6-7 25345 Marin Dillons Beach Comment
  CAS-BOT-BC90878  Artemisia pycnocephala John Thomas Howell 1948-6-6 24332 Marin Bolinas Bay Sand Spit Comment
  CAS-BOT-BC91157  Umbellularia californica John Thomas Howell 1947-3-2 23043 Marin Mount Tamalpais. Above Phoenix Lake. Comment
  CAS-BOT-BC91158  Umbellularia californica John Thomas Howell 1960-2-14 35123 Marin Lower part of Steep Ravine, Mount Tamalpais. Comment
  CAS-BOT-BC94233  Quercus X eplingii John Thomas Howell 1946-5-19 21904 Marin near Camp Lilienthal, Fairfax Hills Comment
  CAS-BOT-BC94356  Quercus garryana John Thomas Howell 1945-7-15 21301 Marin Fairfax Hills near Camp Lilienthal Comment
  CAS-BOT-BC94698  Quercus X howellii John Thomas Howell 1945-9-23 21495 Marin on Fish grade between Phoenix Lake and Lake Lagunitas, N side of canyon Comment
  CAS-BOT-BC9621  Delphinium californicum John Thomas Howell 1939-7-2 s.n. Marin Almonte Comment
  CAS-BOT-BC98071  Symphyotrichum lentum John Thomas Howell 1946-9-20 23017 Marin Laguna in Chileno Valley Comment
  CAS-BOT-BC98319  Symphyotrichum subulatum var. parviflorum John Thomas Howell 1947-10-19 24193 Marin Along high water line, Lake Lagunitas Comment
  CDA1831  Bromus madritensis J. T. Howell 1947-4-27 23096 Marin Bald Mt. west of San Anselmo. 0 Comment
  CDA2206  Hordeum murinum subsp. glaucum J. T. Howell 1949-4-24 25307 Marin Angel Island, Fort McDowell. 0 Comment
  CDA3326  Mirabilis jalapa J. T. Howell 1959-11-4 35102 Marin Sausalito . 0 Comment
  CDA3337  Cypselea humifusa J. T. Howell 1947-10-19 24184 Marin 0 Comment
  CDA3438  Spergularia villosa J. T. Howell 1944-6-25 19643 Marin Santa Venetia . Comment
  CDA3989  Acacia dealbata J. T. Howell 1943-8-29 19312 Marin Summit (Avenue) Ridge above Mill Valley. Comment
  CDA5611  Echium plantagineum J. T. Howell 1969-7-1 45871 Marin Southwest of Point Reyes Station on road to Inverness. 0 Comment
  CDA5683  Verbena incompta J. T. Howell 1943-9-5 19323 Marin San Francisco Bay Region; Southern part of Mill Valley. Comment
  JEPS12626  Hemizonia congesta subsp. lutescens John Thomas Howell 1924-8-31 648 Marin near Phoenix Lake Comment
  JEPS20607  Lessingia hololeuca John Thomas Howell 1926-9-9 2192 Marin Baltimore Park Comment
  JEPS30800  Verbena incompta John Thomas Howell 1943-9-5 19323 Marin southern part Mill Valley 7 Comment
  JEPS37903  Plantago maritima var. juncoides John Thomas Howell 1945-7-8 21285 Marin San Antonio Comment
  JEPS37905  Plantago elongata John Thomas Howell 1946-6-30 22144 Marin Rodeo Lagoon Comment
  JEPS37909  Plantago maritima var. juncoides John Thomas Howell 1940-5-20 15489 Marin Inverness Comment
  JEPS3919  Senecio minimus John Thomas Howell 1944-7-30 19857 Marin Almonte Comment
  JEPS54486  Valerianella locusta John Thomas Howell 1967-5-21 42252 Marin Larkspur Comment
  JEPS58883  Plectritis macrocera John Thomas Howell 1946-4-13 21599 Marin Summit meadow to Rock Spring, Mount Tamalpais Rock Spring; Mount Tamalpais Comment
  JEPS58885  Plectritis brachystemon John Thomas Howell 1946-6-2 21967 Marin Mount Tamalpais, Potrero Meadow Potrero Meadow; Mount Tamalpais, Potrero Meadow Comment
  JEPS58889  Galium parisiense John Thomas Howell 1942-6-7 16973 Marin above Fairfax; San Anselmo Canyon Comment
  JEPS58893  Lonicera hispidula var. vacillans John Thomas Howell 1946-6-16 22084 Marin Pt. Reyes Station Comment
  JEPS58913  Veronica serpyllifolia subsp. humifusa John Thomas Howell 1947-5-4 23116 Marin San Rafael Comment
  JEPS58915  Veronica scutellata John Thomas Howell 1946-6-20 22105 Marin 4 mi n of Bolinas Comment
  JEPS58919  Castilleja ambigua subsp. ambigua John Thomas Howell 1945-5-9 20821 Marin between Hamilton Field and Ignacio Comment
  JEPS58920  Castilleja densiflora subsp. densiflora John Thomas Howell 1946-5-4 21722 Marin e of Dillons Beach Comment
  JEPS58921  Castilleja densiflora subsp. densiflora John Thomas Howell 1947-4-23 23065 Marin w of Mt. Vision; Drakes Estero Comment
  JEPS58922  Castilleja ambigua subsp. ambigua John Thomas Howell 1944-4-23 19405 Marin hills se Kentfield Comment
  JEPS58924  Triphysaria floribunda John Thomas Howell 1947-4-23 23074 Marin Drakes Estero w Mt. Vision; Drakes Estero w of Mt. Vision Comment
  JEPS58926  Triphysaria eriantha subsp. rosea John Thomas Howell 1947-4-23 23073 Marin Drakes Estero w Mt. Vision; Drakes Estero w of Mt. Vision Comment
  JEPS58927  Triphysaria eriantha subsp. eriantha John Thomas Howell 1946-4-14 21627 Marin near Dillons Beach; near Dillons Beach Comment
  JEPS58928  Mimulus microphyllus John Thomas Howell 1940-5-12 15435 Marin s end Carson Ridge Comment
  JEPS58930  Mimulus arvensis John Thomas Howell 1940-5-20 15479 Marin near Tocaloma Comment
  JEPS58931  Mimulus inodorus John Thomas Howell 1944-9-10 20728 Marin near Inverness Comment
  JEPS58932  Mimulus nasutus John Thomas Howell 1947-4-27 23092 Marin w San Anselmo; Bald Mt. Comment
  JEPS58934  Mimulus douglasii John Thomas Howell 1941-5-18 16193 Marin near Rock Spring; Mt. Tamalpais Comment
  JEPS58936  Collinsia sparsiflora var. sparsiflora John Thomas Howell 1946-4-13 21600 Marin Mt. Tamalpais; summit meadow to Rock Spring Comment
  JEPS58937  Cordylanthus pilosus subsp. pilosus John Thomas Howell 1942-9-13 17865 Marin Fairfax Comment
  JEPS58938  Cordylanthus maritimus subsp. palustris John Thomas Howell 1944-5-28 19518 Marin salt marsh Almonte Comment
  JEPS58945  Gratiola ebracteata John Thomas Howell 1945-5-9 20839 Marin between Hamilton Field and Ignacio; between Hamilton Field and Ignacio Comment
  JEPS58949  Castilleja affinis subsp. affinis John Thomas Howell 1946-5-16 21864 Marin Angel Island, se side Marin County Angel Island Comment
  JEPS58950  Castilleja wightii John Thomas Howell 1947-5-4 23129 Marin San Rafael Hills Comment
  JEPS58952  Castilleja subinclusa subsp. franciscana John Thomas Howell 1946-5-19 21914 Marin Meadow Club Fairfax Hills (Fairfax Hills) Comment
  JEPS58954  Castilleja John Thomas Howell 1947-6-18 23282 Marin n of Dillons Beach Comment
  JEPS62610  Castilleja affinis subsp. affinis John Thomas Howell 1969-5-5 45567 Marin near Paradise Cove; Tiburon Peninsula Comment
  LA42170  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell; 1933-3-19 10868 Marin Mount Tamalpais, S side of mountain, above Mill Valley Comment
  LA57189  Monardella purpurea John Thomas Howell; 1930-7-20 5382 Marin Mt Tamalpais, SE side along Wheeler Trail Comment
  NY752416  Typha angustifolia J. T. Howell 1944-5-28 19521 Marin Between Almonte and Mill Valley Comment
  NY76570  Lepidium oxycarpum J. T. Howell 1933-4-1 10919 Marin 4.5 miles north of San Raphael Comment
  POM179706  Cirsium andrewsii J. T. Howell 1930-6-22 5321 Marin Valley above Rodeo Lagoon Comment
  POM193914  Cupressus sargentii J. T. Howell 1927-8-22 3040 Marin Rock Spring Trail, west of West Point, Mt. Tamalpais 549 Comment
  POM193976  Arctostaphylos hookeri subsp. montana J. T. Howell 1926-2-28 1655 Marin Mt. Tamalpais on south side. Comment
  POM196465  Lepechinia calycina J. T. Howell 1925-4-5 936 Marin Pipeline Trail. Comment
  POM196476  Ericameria arborescens subsp. arborescens J. T. Howell 1924-9-14 652 Marin Pipeline Trail. Comment
  POM202457  Arctostaphylos glandulosa subsp. cushingiana J. T. Howell 1933-3-19 10866 A Marin Slopes at head of Muir Woods. Comment
  POM203149  Baccharis pilularis J. T. Howell 1933-10-8 11702 Marin Pt. Reyes Peninsula Comment
  POM203455  Grindelia camporum J. T. Howell 1933-7-30 11462 Marin San Anselmo. Comment
  POM203970  Cordylanthus maritimus subsp. palustris J. T. Howell 1933-7-30 11480 Marin Inverness. Comment
  POM248587  Carex luzulina var. ablata J. T. Howell 1938-6-5 13896 Marin Azalea Flat, Mt. Tamalpais. Comment
  POM259268  Streptanthus batrachopus J. T. Howell 1939-5-14 s.n. Marin East of Collier Spring, Mount Tamalpais Comment
  POM261289  Cirsium quercetorum J. T. Howell 1939-6-25 14796 Marin Summit Avenue, Mill Valley Comment
  POM273123  Pentachaeta bellidiflora J. T. Howell 1946-5-25 21933 Marin Greenbrae HillsGreenhorn Mountain Range: North Rim of Kern Canyon. Comment
  POM273975  Artemisia californica J. T. Howell 1946-12-22 23034 Marin Greenbrea Hills. Comment
  POM298988  Garrya fremontii J. T. Howell 1942-9-6 17864 Marin Northside Trail, Mt. Tamalpais. Comment
  POM298990  Phacelia californica J. T. Howell 1930-7-20 5384 Marin Rocky slope of Mt. Tamalpais on south-east side. Comment
  POM299313  Phacelia divaricata var. continentis J. T. Howell 1930-3-9 4552 Marin Point Reyes near the lighthouse. Comment
  POM303643  Carex ovalis J. T. Howell 1944-6-4 19567 Marin Mt. Vision west of Inverness Comment
  POM303717  Lotus uliginosus J. T. Howell 1944-7-30 19856 Marin Between Mill Valley and head of salt marshes. 3 Comment
  POM356839  Erechtites minimus J. T. Howell 1944-7-30 19857 Marin Almonte. Comment
  RSA1060  Arctostaphylos glandulosa subsp. glandulosa J. T. Howell 1927-8-22 676 Marin Rock Spring Trail, Mt Tamalpais 548 Comment
  RSA118026  Schedonorus arundinaceus J. T. Howell 1955-5-29 30257 Marin Between Bootjack and Mountain Theater, Mt. Tamalpais. Comment
  RSA121001  Quercus chrysolepis J. T. Howell 1956-9-23 31878 Marin Near Laurel Dell, Mt. Tamalpais. Comment
  RSA126184  Rosa spithamea J. T. Howell 1946-9-8 23001 Marin SW of Lake Lagunitas. Mt. Tamalpais. Comment
  RSA126188  Salix lucida subsp. lasiandra J. T. Howell 1944-7-23 s.n. Marin Santa Venetia. Comment
  RSA126190  Salix exigua J. T. Howell 1945-5-9 20841 Marin Ignacio. Comment
  RSA126197  Sagina maxima subsp. crassicaulis J. T. Howell 1946-5-4 21751 Marin Dillon's Beach. Comment
  RSA126205  Ceanothus foliosus J. T. Howell 1948-5-16 24298 Marin Upper part of Cascade Canyon, Mt. Tamalpais Comment
  RSA126240  Rosa californica J. T. Howell 1939-9-3 15349 Marin San Antonio Creek Comment
  RSA126395  Danthonia californica var. californica J. T. Howell 1943-5-15 18069 Marin Tiburon Peninsula Comment
  RSA126399  Andropogon glomeratus J. T. Howell 1939-10-15 s.n. Marin Near Liberty Camp. Comment
  RSA126400  Alopecurus saccatus J. T. Howell 1946-5-4 21702 Marin East of Aurora School at Sonoma Co. Line, Marine Co. Comment
  RSA126402  Calamagrostis rubescens J. T. Howell 1943-5-30 18184 Marin Summit Arena, Ridge above Mill Valley, Mt. Tamalpais. Comment
  RSA126404  Calamagrostis ophitidis J. T. Howell 1945-5-27 20878 a Marin Mount Tamalpais Comment
  RSA126407  Poa secunda J. T. Howell 1943-4-11 17897 Marin Black Canyon, San Rafeal Hills Comment
  RSA126457  Agrostis blasdalei J. T. Howell 1947-5-14 23150 Marin Monterey Series, Drakes Estero, west-northwest of Mt. Vision. Comment
  RSA126458  Agrostis exarata J. T. Howell 1946-6-13 22048 Marin East of Aurora School at Sonoma County line. Comment
  RSA126461  Agrostis capillaris J. T. Howell 1945-6-12 20955 Marin Near radio station, Pt. Reyes Peninsula. Comment
  RSA126462  Agrostis exarata J. T. Howell 1943-6-13 18230 Marin Sausalito hills Comment
  RSA126464  Bromus carinatus J. T. Howell 1941-8-25 s.n. Marin Mt. Tamalpais Comment
  RSA126466  Bromus madritensis J. T. Howell 1945-5-27 s.n. Marin Mount Tamalpais Comment
  RSA126473  Deschampsia danthonioides J. T. Howell 1945-4-29 s.n. Marin Lagunitas Meadows; Mt. Tamalpais Comment
  RSA126475  Beckmannia syzigachne J. T. Howell 1946-6-13 22019 Marin Hicks Valley Comment
  RSA127051  Chorizanthe cuspidata var. villosa J. T. Howell 1946-6-9 s.n. Marin Abbott's Lagoon Comment
  RSA127054  Allium triquetrum J. T. Howell 1950-4-23 26309 Marin Along Summit Ave. Mill Valley. Comment
  RSA127066  Luzula comosa J. T. Howell 1949-5-15 25317 Marin Inverness Ridge, west of Inverness. Comment
Read comments
Feb 24 2012
  RSA127073  Lilaea scilloides J. T. Howell 1941-6-8 19273 Marin Near McNears Landing [McNears Beach] Comment
  RSA127089  Grindelia hirsutula J. T. Howell 1946-6-13 22038 Marin Chileno Valley. Comment
  RSA127202  Festuca occidentalis J. T. Howell 1943-6-6 18216 Marin Tenderfoot Trail above Mill Valley. Comment
  RSA127226  Vulpia microstachys var. pauciflora J. T. Howell 1946-5-14 21839 Marin Between Barths Retreat and Potrero Meadow, Mt. Tamalpais. Comment
  RSA127227  Vulpia eastwoodiae J. T. Howell 1946-5-14 21840 Marin Between Barths Retreat and Potrero Meadow, Mt. Tamalpais. Comment
  RSA127228  Phalaris minor J. T. Howell 1944-5-7 19425 Marin Greenbrae, Marin County Comment
  RSA127230  Elymus glaucus subsp. virescens J. T. Howell 1947-5-14 23161 Marin McClure Beach Comment
  RSA127231  Leymus vancouverensis J. T. Howell 1946-7-4 22175 Marin Dillon's Beach. Comment
  RSA127232  Leymus pacificus J. T. Howell 1946-7-4 22177 Marin Dillon's Beach. Comment
  RSA127234  Elymus glaucus J. T. Howell 1942-6-21 s.n. Marin Carson Ridge Comment
  RSA127236  Vulpia microstachys var. pauciflora J. T. Howell 1946-5-14 21838 Marin Between Barths Retreat and Potrero Meadow, Mt. Tamalpais. Comment
  RSA127238  Vulpia myuros J. T. Howell 1943-5-22 18115 Marin Fairfax. Comment
  RSA127245  Polypogon monspeliensis J. T. Howell 1939-7-2 s.n. Marin Pirates Cove. Comment
  RSA127251  Phalaris lemmonii J. T. Howell 1945-5-9 20833 Marin between Hamilton Field and Ignacio, Marin County Comment
  RSA127252  Amaranthus palmeri J. T. Howell 1942-9-13 17868 Marin Fairfax Comment
  RSA127254  Equisetum arvense J. T. Howell 1941-6-29 16338 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais. Comment
  RSA127266  Melica torreyana J. T. Howell 1942-6-21 s.n. Marin Carson Ridge Comment
  RSA127267  Melica harfordii J. T. Howell 1943-5-30 18185 Marin Wheeler Trail, Mt. Tamalpais. Comment
  RSA127268  Melica californica J. T. Howell 1939-5-21 s.n. Marin S. Tiburon. Comment
  RSA127273  Hordeum depressum J. T. Howell 1947-4-13 23057 Marin Tiburon Peninsula Comment
  RSA127275  Hordeum brachyantherum subsp. californicum J. T. Howell 1948-5-31 24328 Marin Devil's Gulch, near Camp Taylor Comment
  RSA127376  Ribes victoris J. T. Howell 1941-6-8 s.n. Marin NE of San Rafael Comment
  RSA127380  Festuca rubra J. T. Howell 1941-6-29 16331 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais. Comment
  RSA127381  Festuca idahoensis J. T. Howell 1941-5-25 16208 Marin Rifle camp, Mt. Tamalpais. Comment
  RSA127382  Nassella lepida J. T. Howell 1943-5-9 17956 -A Marin Black Canyon, San Rafael Hills Comment
  RSA127391  Elymus multisetus J. T. Howell 1941-5-25 16239 Marin Near Bootjack, Mt. Tamalpais Comment
  RSA128315  Lupinus albifrons var. collinus J. T. Howell 1947-5-25 23196 Marin Simmons Trail, Mt. Tamalppais. Comment
  RSA128337  Alopecurus aequalis var. sonomensis J. T. Howell 1952-7-3 28322 Marin near the radio station, Pt. Reyes Peninsula. Comment
  RSA128928  Aster chilensis J. T. Howell 1947-5-18 23179 Marin South end of Carson Ridge Comment
  RSA128938  Trifolium variegatum J. T. Howell 1945-5-9 20825 Marin between Hamilton Field and Ignacio. Comment
  RSA169  Quercus parvula var. shrevei J. T. Howell 1927-8-22 670 Marin Mount Tamalpais, above Mill Valley 152 Comment
  RSA201401  Cuscuta californica var. californica J. T. Howell 1944-7-7 19679 Marin Serpentine above Camp Handy. Mt. Tamalpais. Comment
  RSA201436  Eryngium aristulatum var. aristulatum J. T. Howell 1946-9-20 23026 Marin Sonoma County line east of Aurora School Comment
  RSA201452  Dichondra donelliana J. T. Howell 1947-5-8 23147 Marin Sausalito Comment
  RSA201454  Sequoia sempervirens J. T. Howell 1957-2-3 32020 Marin Fern Canyon, Mt. Tamalpais Comment
  RSA201458  Plantago bigelovii subsp. bigelovii J. T. Howell 1947-4-30 23109 Marin Dillons Beach. Comment
  RSA201495  Phacelia suaveolens subsp. suaveolens J. T. Howell 1946-5-14 21842 Marin Potrero Meadow, Mt. Tamalpais. Comment
  RSA220033  Phacelia malvifolia J. T. Howell 1969-5-5 45578 Marin Ring Hill, Tiburon Peninsula. Comment
  RSA22132  Festuca californica var. californica J. T. Howell 1938-6-19 13920 Marin Bootjack. Mt. Tamalpais. Comment
  RSA299147  Chorizanthe valida J. T. Howell, Catherine Best, Wilma Follette, Gordon H. True 1980-6-19 53718 Marin Near Abbott's Lagoon, Point Reyes Peninsula. Comment
Read comments
Jun 20 2017
  RSA31367  Boisduvalia densiflora var. densiflora J. T. Howell 1944-6-25 19654 Marin Santa Venetia. Comment
  RSA31368  Boisduvalia densiflora var. densiflora J. T. Howell 1946-6-23 22124 Marin Carson Ridge Comment
  RSA31407  Camissonia cheiranthifolia subsp. cheiranthifolia J. T. Howell 1945-6-3 20939 Marin Shell Beach near Inverness Comment
  RSA31408  Camissonia micrantha J. T. Howell 1945-6-12 20956 Marin Near radio station, Pt. Reyes Peninsula. Comment
  RSA32115  Pentachaeta bellidiflora J. T. Howell 1946-5-25 s.n. Marin Greenbrae HillsGreenhorn Mountain Range: North Rim of Kern Canyon. Comment
  RSA32273  Streptanthus glandulosus subsp. pulchellus J. T. Howell 1946-5-12 21815 Marin Carson Country Comment
  RSA32481  Astragalus pycnostachyus var. pycnostachyus J. T. Howell 1945-8-19 21433 Marin Head of Drakes Bay. Comment
  RSA32491  Umbellularia californica J. T. Howell 1947-3-2 23043 Marin Above Phoenix Lake, Mt. Tamalpais. Comment
  RSA35289  Ceanothus jepsonii J. T. Howell 1940-5-12 15434 Marin Mt. Tamalpais. Comment
  RSA35304  Carex ovalis J. T. Howell 1944-6-4 19567 Marin Mt. Vision west of Inverness Comment
  RSA383649  Ruppia maritima J. T. Howell 1933-7-30 11469 Marin Head of Tomales Bay Comment
  RSA40160  Lotus uliginosus J. T. Howell 1944-7-30 19856 Marin Between Mill Valley and head of salt marshes. 3 Comment
  RSA43327  Torreya californica J. T. Howell 1948-5-16 24303 Marin Near top of Eldridge Grade, Mount Tamalpais Comment
  RSA46392  Arctostaphylos nummularia var. sensitiva J. T. Howell 1947-1-12 s.n. Marin Above Muir Woods, south side of Mt. Tamalpais. Comment
  RSA46396  Lithocarpus densiflorus var. densiflorus J. T. Howell 1947-1-12 s.n. Marin Above Muir Woods, south side of Mt. Tamalpais. Comment
  RSA51267  Arctostaphylos glandulosa subsp. glandulosa J. T. Howell 1950-4-2 26307 Marin Inverness Ridge east of Mt. Vision, Pt. Reyes Peninsula. Comment
  RSA51275  Bromus madritensis J. T. Howell 1947-4-27 23096 Marin Bald Mt. west of San Anselmo Comment
  RSA51281  Hordeum murinum subsp. glaucum J. T. Howell 1949-4-24 25307 Marin Fort McDowell, Angel Island Comment
  RSA51441  Poa kelloggii J. T. Howell 1950-5-18 26311 Marin Lagunitas Creek near Camp Taylor. Comment
  RSA52015  Carex hassei J. T. Howell 1947-5-14 23170 Marin Near Ledum Swamp, Point Reyes Peninsula. Comment
  RSA52098  Carex utriculata J. T. Howell 1947-6-4 23212 Marin Near radio station, Point Reyes Peninsula Comment
  RSA52111  Carex densa J. T. Howell 1943-5-2 17935 Marin Big Carson Canyon. Comment
  RSA52315  Carex harfordii J. T. Howell 1944-5-28 19523 Marin Between Almonte and Mill Valley. Comment
  RSA52338  Carex gracilior J. T. Howell 1946-5-16 21858 Marin Angel Island, southeast side. Comment
  RSA53844  Scribneria bolanderi J. T. Howell 1945-4-29 20791 Marin Serpentine ridge W of Camp Handy, Mt. Tamalpais Comment
Read comments
Mar 26 2010
  RSA550627  Carex globosa J. T. Howell 1944-4-2 19368 A Marin Southeast of Laurel Del, Mount Tamalpais Comment
Read comments
May 31 2010
  RSA66706  Streptanthus batrachopus J. T. Howell 1946-6-23 22122 Marin Carson Ridge Comment
  RSA69615  Triglochin maritima J. T. Howell 1941-6-8 19271 Marin Near McNears Landing [McNears Beach] Comment
  RSA70837  Arctostaphylos hookeri subsp. montana J. T. Howell 1926-2-28 1655 Marin Mt. Tamalpais on south side. Comment
  RSA78560  Carex echinata subsp. phyllomanica J. T. Howell 1943-7-4 18255 Marin Ledum Swamp on road to Point Reyes, Point Reyes Peninsula. Comment
  RSA86719  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin Low field between Hamilton Field and Ignacio Comment
  RSA88329  Campanula angustiflora J. T. Howell 1946-5-12 21818 Marin Carson Country Comment
  SBBG27393  Rubus ursinus J. T. Howell 1938-6-19 Marin Bootjack, Mt Tamalpais Comment
  SBBG28037  Lessingia hololeuca J. T. Howell 1945-9-2 Marin San Rafael Hills Comment
  SBBG28863  Arctostaphylos glandulosa subsp. cushingiana J. T. Howell 1933-3-19 10866 a Marin slopes at head of Muir Woods Comment
  SBBG29170  Holozonia filipes J. T. Howell 1945-8-12 21372 Marin Rock Spring, Mt Tamalpais Comment
  SBBG29828  Phacelia insularis var. continentis J. T. Howell 1930-3-9 4552 Marin Point Reyes near the lighthouse Comment
  SBBG29857  Streptanthus batrachopus J. T. Howell 1942-6-21 16994 Marin Carson Ridge Comment
  SBBG29936  Atriplex semibaccata J. T. Howell 1943-11-21 19338 Marin W of San Quentin near Greenbrae Comment
  SBBG30015  Phalaris aquatica J. T. Howell 1945-8-12 21381 Marin Tiburon Comment
  SBBG41054  Lomatium utriculatum J. T. Howell 1947-5-8 23145 Marin Sausalito Comment
  SBBG41131  Plantago elongata J. T. Howell 1946-6-30 Marin Rodeo Lagoon Comment
  SBBG41384  Arctostaphylos glandulosa subsp. cushingiana J. T. Howell 1943-3-7 17881 Marin hills NE of San Rafael Comment
  SBBG47341  Cuscuta californica var. californica J. T. Howell 1972-6-18 Marin near Ring Hill, Tiburon Peninsula 167 Comment
  SBBG47342  Castilleja affinis subsp. neglecta J. T. Howell 1972-6-18 48873 Marin above Vista de la Bahia at N end of Tiburon Peninsula Comment
  SBBG47346  Delphinium variegatum subsp. variegatum J. T. Howell 1972-6-18 48872 Marin near Ring Hill, Tiburon Peninsula 167 Comment
  SBBG47374  Gilia capitata subsp. capitata J. T. Howell 1972-6-18 Marin near Ring Hill, Tiburon Peninsula 167 Comment
  SBBG54421  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin between Hamilton Field and Ignacio Comment
  SD71223  Lomatium utriculatum John T. Howell 1947-5-8 23145 Marin Sausalito Comment
  SD71225  Hydrocotyle verticillata John T. Howell 1946-7-7 22205 Marin Potrero Meadow, Mt. Tamalpais. Comment
  SD71226  Eryngium aristulatum John Thomas Howell 1946-9-15 23006 Marin Hidden Lake, Mt. Tamalpais. Comment
  SD71324  Frangula californica subsp. californica John Thomas Howell 1966-5-25 41546 Marin Gully just north of garden area, John Thomas Howell Botanical Garden, Tiburon Comment
  SEINET195203  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin Between Hamilton Field and Ignacio Comment
  SEINET195300  Carduus pycnocephalus John Thomas Howell 1946-5-4 21754 Marin Redwood Hwy near Burdell Comment
  SEINET195365 Image available Stenotaphrum secundatum J. T. Howell 1945-6-22 Marin West of Mill Valley on road to Muir Woods Comment
  SEINET196485  Grindelia stricta var. angustifolia J. T. Howell 1949-10-9 26300 Marin Salt marsh bordering San Francisco Bay at N end of Tiburon Pensinula Comment
  SEINET196569 Image available Hordeum murinum subsp. leporinum J. T. Howell 1949-4-24 25307 Marin Fort McDowell Angel Island Comment
  SEINET199894 Image available Bromus carinatus var. carinatus John Thomas Howell 1943-5-15 18099 Marin Tiburon Peninsula Comment
  SEINET199904  Agrostis hallii John Howell 1943-7-3 Marin Near Bootjack, Mt. Tamalpais Comment
  SEINET199907  Agrostis gigantea John T Howell 1938-10-15 Marin Fairbax Rd near Alpien Lake, Marin Co. Comment
  SEINET199911  Elymus glaucus subsp. virescens John Thomas Howell 1946-6-9 22009 Marin Pierce Ranch, Point Reyes Peninsula, Marin Co. Comment
  SEINET199912 Image available Scribneria bolanderi John Thomas Howell 1945-5-27 20879 Marin Area above Bootjack, Mt. Tamalpais Comment
  SEINET199913 Image available Elymus elymoides subsp. brevifolius J. T. Howell 1943-5-15 Marin Tiburon Peninsula Comment
  SEINET199930  Elymus glaucus subsp. glaucus J. T. Howell 1943-6-6 18209 Marin Camp below Muir Woods Comment
  SEINET199934 Image available Vulpia microstachys var. ciliata John Thomas Howell Marin Tiburon Comment
  SEINET199935 Image available Vulpia microstachys var. pauciflora John Thomas Howell Marin Tiburon Comment
  SEINET199936 Image available Pleuropogon hooverianus J. T. Howell 1947-4-27 23107 Marin Ross. Comment
  SEINET199937 Image available Dichanthelium acuminatum subsp. fasciculatum John Thomas Howell 1941-6-29 16340 Marin Between rock Srping and Laurel Dell. Mt. Tamalpais Comment
  SEINET3900145  Carex densa John Thomas Howell 1938-6-5 13903 Marin Rock Spring, Mt. Tamalpais.; 0 Comment
  SEINET3901002  Carex exsiccata John Thomas Howell 1946-6-20 22104 Marin Four miles north of Bolinas.; 0 Comment
  SEINET935035  Bromus carinatus var. marginatus John Thomas Howell 1955-1 30149 Marin Sidewalk Parking near E. Blithedale Ave. at Park School, Mill Valley Comment
  SEINET948663  Astragalus pycnostachyus John Thomas Howell 1945-1 21433 Marin At head of Drakes Bay. Comment
  UC1008729  Navarretia intertexta subsp. intertexta John Thomas Howell 1942-7-12 17030 Marin Potrero Meadows Mt. Tamalpais Comment
  UC1023052  Navarretia intertexta John Thomas Howell 1941-7-6 16351 Marin Kent Trail Mt. Tamalpais Comment
  UC1106069  Crassula aquatica John Thomas Howell 1946-9-18 Marin Mt. Tamalpais, Lake Lagunitas Comment
  UC1106071  Ranunculus flammula John Thomas Howell 1946-6-20 22103 Marin four mi n Bolinas (on Olema Rd) Comment
  UC1106072  Claytonia exigua subsp. exigua John Thomas Howell 1940-5-12 15432 Marin s end Carson Ridge Comment
  UC1106076  Scirpus acutus var. occidentalis John Thomas Howell 1946-9-15 23007 Marin Hidden Lake Mt. Tamalpais, Hidden Lake Comment
  UC1106077  Schoenoplectus acutus var. occidentalis John Thomas Howell 1945-8-5 21367 Marin Stinson Beach Comment
  UC1106081  Eleocharis macrostachya John Thomas Howell 1944-6-25 19640 Marin San Rafael Comment
  UC1106082  Eleocharis rostellata John Thomas Howell 1945-5-20 20870 Marin Tiburon Comment
  UC1106086  Eleocharis macrostachya John Thomas Howell 1939-5-14 Marin Phoenix Lake Mount Tamalpais Comment
  UC1106087  Leymus triticoides John Thomas Howell 1946-6-9 22002 Marin Abbotts Lagoon Comment
  UC1106088  Elymus glaucus John Thomas Howell 1941-6-29 16341 Marin Laurel Dell Mt. Tamalpais Comment
  UC1106090  Elymus glaucus John Thomas Howell 1941-5-25 16215 Marin Rifle Camp Mt. Tamalpais Comment
  UC1106091  Festuca occidentalis John Thomas Howell 1946-6-2 21989 Marin Lake Lagunitas Mt. Tamalpais Comment
  UC1106092  Festuca rubra John Thomas Howell 1944-6-6 19556 Marin w of Inverness; Inverness Ridge Comment
  UC1106096  Festuca californica John Thomas Howell 1945-6-12 20952 Marin Point Reyes Peninsula, near radio station Point Reyes Peninsula Comment
  UC1106097  Vulpia myuros var. hirsuta John Thomas Howell 1948-5-16 24299 Marin upper part Cascade Canyon; Mt. Tamalpais Comment
  UC1106098  Vulpia bromoides John Thomas Howell 1939-4-23 14599 Marin Blithedale Canyon; Mill Valley Comment
  UC1106103  Stenotaphrum secundatum John Thomas Howell 1944-10-1 20766 Marin Fairfax Comment
  UC1106109  Elymus glaucus subsp. virescens John Thomas Howell 1947-5-14 23161 Marin McClure Beach Comment
  UC1106110  Leymus mollis subsp. mollis John Thomas Howell 1945-6-30 21250 Marin Stinson Beach Comment
  UC1106111  Leymus X vancouverensis John Thomas Howell 1946-7-4 22175 Marin Dillons Beach Comment
  UC1106112  Leymus X vancouverensis John Thomas Howell 1946-7-4 22177 Marin Dillons Beach Comment
  UC1106114  Lolium multiflorum John Thomas Howell 1939-5-21 Marin W. Tiburon Comment
  UC1106116  Melica torreyana John Thomas Howell 1943-5-9 17982 Marin San Rafael Hills Comment
  UC1106118  Lolium temulentum John Thomas Howell 1941-6-29 Marin Rattlesnake Camp Mt. Tamalpais; , Rattlesnake Camp Comment
  UC1106123  Trisetum canescens John Thomas Howell 1946-7-7 Marin Potrero Meadows; Mt. Tamalpais Comment
  UC1106129  Hordeum marinum subsp. gussoneanum John Thomas Howell 1946-4-14 Marin Chileno Valley Comment
  UC1106139  Melica geyeri John Thomas Howell 1947-5-25 23195 Marin Mt. Tamalpais; Bernstein Trail, near the Mt. Theatre Comment
  UC1106141  Melica geyeri John Thomas Howell 1941-5-25 16227 Marin Potrero Meadow; Mt. Tamalpais Comment
  UC1106142  Melica subulata John Thomas Howell 1945-6-3 20916 Marin near Inverness Comment
  UC1106144  Atriplex californica John Thomas Howell 1944-9-10 20734 Marin n Inverness (Shell Beach); n of Inverness, Shell Beach Comment
  UC1106146  Cypselea humifusa John Thomas Howell 1939-8-27 15327 Marin Lake Lagunitas Comment
  UC1106147  Atriplex leucophylla John Thomas Howell 1945-6-30 Marin Stinson Beach Comment
  UC1106148  Chenopodium macrospermum var. halophilum John Thomas Howell 1951-10-11 28296 Marin Drake Memorial Pt. Reyes Peninsula (on flats border<ing> lagoon) Comment
  UC1106186  Lasthenia glaberrima John Thomas Howell 1945-5-9 20827 Marin between Hamilton Field and Ignacio Comment
  UC1106187  Lasthenia californica subsp. californica John Thomas Howell 1946-4-14 21635 Marin near Dillons Beach Comment
  UC1106190  Microseris bigelovii John Thomas Howell 1946-5-19 21910 Marin Meadows Club, Fairfax hills Fairfax Comment
  UC1106191  Soliva sessilis John Thomas Howell 1946-5-26 Marin near Ledum Swamp Comment
  UC1106192  Cotula australis John Thomas Howell 1945-9-16 21468 Marin San Rafael Comment
  UC1106194  Polygonum marinense John Thomas Howell 1945-7-8 21282 Marin Burdell; salt marshes Comment
  UC1106196  Microseris paludosa John Thomas Howell 1944-5-14 19457 Marin hills near Salmon Creek School Comment
  UC1106209  Aira elegantissima John Thomas Howell 1945-5-9 20831 Marin between Hamilton Field and Ignacio Comment
  UC1106211  Agrostis capillaris John Thomas Howell 1945-6-12 20955 Marin near radio station; Point Reyes Peninsula Comment
  UC1106212  Agrostis microphylla John Thomas Howell 1946-6-9 22007 Marin n Abbotts Lagoon Comment
  UC1106214  Agrostis blasdalei John Thomas Howell 1946-6-9 22006 Marin n Abbotts Lagoon Comment
  UC1106223  Deschampsia danthonioides John Thomas Howell 1944-5-21 19498 Marin Lagunitas Meadows Mt. Tamalpais; , Lagunitas Meadows Comment
  UC1106239  Trifolium microdon John Thomas Howell 1940-5-20 15506 Marin Point Reyes Comment
  UC1106241  Trifolium barbigerum John Thomas Howell 1946-4-14 21620 Marin near Tomales 0 Comment
  UC1106242  Trifolium oliganthum John Thomas Howell 1947-4-27 23080 Marin w San Anselmo; Bald Mtn Comment
  UC1106244  Trifolium gracilentum John Thomas Howell 1946-4-18 21662 Marin Black Point Comment
  UC1106246  Trifolium depauperatum var. depauperatum John Thomas Howell 1946-4-14 21633 Marin near Dillons Beach Comment
  UC1106247  Trifolium variegatum var. melananthum John Thomas Howell 1945-5-9 20805 Marin Between Hamilton Field and Ignacio Comment
  UC1106248  Trifolium oliganthum John Thomas Howell 1947-5-4 23130 Marin San Rafael Hills Comment
  UC1106253  Medicago polymorpha John Thomas Howell 1947-7-6 Marin Laurel Dell Mt. Tamalpais Comment
  UC1106255  Potentilla anserina subsp. pacifica John Thomas Howell 1947-5-21 23194 Marin Tiburon Comment
  UC1106259  Rorippa curvisiliqua John Thomas Howell 1947-4-27 23077 Marin Bald Mountain w San Anselmo; Bald Mt. w of San Anselmo Comment
  UC1106265  Lessingia micradenia var. micradenia John Thomas Howell 1944-7-7 19678 Marin above Camp Handy (Mt. Tamalpais); Mt. Tamalpais Comment
  UC1106269  Lapsana communis John Thomas Howell 1944-7-9 19685 Marin Inverness Comment
  UC1106270  Taraxacum officinale John Thomas Howell 1947-5-30 23207 Marin Ross Comment
  UC1106271  Micropus amphibolus John Thomas Howell 1946-5-16 21871 Marin Angel Island Angel Island (s side) Comment
  UC1106274  Gnaphalium palustre John Thomas Howell 1946-9-20 23024 Marin e of Aurora School (Marin-Sonoma County line) Comment
  UC1106277  Allium triquetrum John Thomas Howell 1950-4-23 26309 Marin along Summit Ave. Mill Valley, Summit Ave. Comment
  UC1106280  Triglochin striata John Thomas Howell 1946-7-4 22178 Marin Dillons Beach Comment
  UC1106281  Potamogeton foliosus John Thomas Howell 1946-8-23 22893 Marin Pierce Point Road; Point Reyes Peninsula Comment
  UC1106290  Juncus bufonius var. occidentalis John Thomas Howell 1941-7-6 16355 Marin Kent Trail Mt. Tamalpais Comment
  UC1106291  Juncus phaeocephalus John Thomas Howell 1939-10-1 15362 Marin Lake Lagunitas Comment
  UC1106292  Juncus phaeocephalus var. phaeocephalus John Thomas Howell 1945-9-13 21464 Marin Pt. Reyes Peninsula, near radio station Pt. Reyes Peninsula Comment
  UC1106294  Lilaea scilloides John Thomas Howell 1944-5-28 19529 Marin between Almonte and Mill Valley Comment
  UC1106296  Zostera marina John Thomas Howell 1947-6-18 23274 Marin Dillons Beach Comment
  UC1106297  Maianthemum dilatatum John Thomas Howell 1946-5-5 21757 Marin swale near radio station Pt. Reyes Peninsula Comment
  UC1106298  Luzula macrantha John Thomas Howell 1949-5-15 25317 Marin Inverness Ridge west of Inverness Comment
Read comments
Feb 24 2012
  UC1106300  Juncus kelloggii John Thomas Howell 1946-6-2 21980 Marin Rocky Ridge Fire Trail Mt. Tamalpais Comment
  UC1106304  Sagina decumbens subsp. occidentalis John Thomas Howell 1946-4-21 21691 Marin downs near radio station Pt. Reyes Peninsula Comment
  UC1106306  Sagina apetala John Thomas Howell 1943-4-11 Marin San Rafael Comment
  UC1106307  Stellaria nitens John Thomas Howell 1982-4-27 23084 Marin w of San Anselmo (Bald Mt); Bald Mt. Comment
  UC1106313  Vulpia microstachys var. ciliata John Thomas Howell 1939-5-14 14682 Marin n side Mt. Tamalpais, West Peak; Mt. Tamalpais Comment
  UC1106315  Phalaris lemmonii John Thomas Howell 1944-5-7 19426 Marin Greenbrae Comment
  UC1176732  Dudleya farinosa John Thomas Howell 1939-7-2 14824 A Marin Elk Valley Comment
  UC1176734  Ribes menziesii John Thomas Howell 1950-10-11 27469 Marin Bear Valley Comment
  UC1176736  Whipplea modesta John Thomas Howell 1947-5-4 23131 Marin San Rafael Hills Comment
  UC1176737  Saxifraga californica John Thomas Howell 1947-3-2 Marin Bald Mountain, on Yolanda Route Bald Mountain Comment
  UC1176738  Lithophragma heterophyllum John Thomas Howell 1943-4-11 17907 Marin Black Canyon San Rafael Hills; San Rafael hills, Black Canyon Comment
  UC1176743  Thalictrum fendleri var. polycarpum John Thomas Howell 1939-6-18 Marin Mud Lake Pt. Reyes Peninsula Comment
  UC1176749  Ranunculus uncinatus John Thomas Howell 1945-6-3 20928 Marin Shell Beach Comment
  UC1176751  Ranunculus californicus John Thomas Howell 1946-4-14 21631 Marin near Dillons Beach Comment
  UC1176752  Ranunculus repens John Thomas Howell 1946-6-9 22014 Marin Pierce Ranch Point Reyes Peninsula Comment
  UC1176754  Ranunculus hebecarpus John Thomas Howell 1943-4-11 17918 Marin Black Canyon San Rafael Hills Comment
  UC1176756  Hesperocnide tenella John Thomas Howell 1945-6-30 Marin Mt. Tamalpais Comment
  UC1176757  Urtica dioica subsp. gracilis John Thomas Howell 1946-6-16 22074 Marin Inverness Park Comment
  UC1176758  Alnus rhombifolia John Thomas Howell 1940-5-12 Marin Lagunitas Creek Canyon Comment
  UC1176761  Ribes sanguineum var. glutinosum John Thomas Howell 1944-7-9 19696 Marin Inverness Ridge Comment
  UC1176762  Ribes menziesii John Thomas Howell 1944-7-9 19695 Marin Inverness Comment
  UC1176764  Phoradendron villosum John Thomas Howell 1940-1-14 Marin Mt. Tamalpais, Lake Lagunitas Comment
  UC1176768  Eschscholzia californica John Thomas Howell 1944-6-4 19554 Marin w Inverness; Inverness Ridge Comment
  UC1176773  Aristolochia californica John Thomas Howell 1945-5-13 20864 Marin Deer Park near Fairfax Comment
  UC1176779  Arceuthobium campylopodum John Thomas Howell 1944-7-9 19686 Marin Inverness Ridge Comment
  UC1176783  Amaranthus powellii John Thomas Howell 1943-9-5 Marin Mill Valley Comment
  UC1176789  Scirpus pungens John Thomas Howell 1945-5-20 20872 Marin Tiburon Comment
  UC1176795  Chenopodium californicum John Thomas Howell 1947-5-14 23166 Marin McClure Beach Comment
  UC1176799  Salix lasiolepis John Thomas Howell 1939-9-3 Marin Ignatio Comment
  UC1176803  Salix sitchensis John Thomas Howell 1943-7-4 18263 Marin Ledum Swamp on rd. to Pt. Reyes; Ledum Swamp Comment
Read comments
Dec 6 2007
  UC1176809  Rumex salicifolius var. salicifolius John Thomas Howell 1946-7-7 22204 Marin Potrero Meadow Mt. Tamalpais Comment
  UC1176810  Rumex salicifolius var. salicifolius John Thomas Howell 1946-6-30 22138 Marin Rodeo Lagoon Comment
  UC1176811  Rumex salicifolius var. salicifolius John Thomas Howell 1945-9-2 21460 Marin San Rafael Hills Comment
  UC1176812  Salix lasiolepis John Thomas Howell 1946-7-4 22180 Marin Dillons Beach Comment
  UC1176817  Barbarea orthoceras John Thomas Howell 1950-3-28 26305 Marin Pt. Reyes Peninsula on road to lighthouse Comment
  UC1176818  Rorippa palustris John Thomas Howell 1947-6-18 23264 Marin Laguna , Laguna (Chileno Valley) Comment
  UC1176878  Hypochaeris glabra John Thomas Howell 1948-6-6 24333 Marin Bolinas Comment
  UC1176880  Xanthium strumarium John Thomas Howell 1946-9-8 Marin near Ignacio Comment
  UC1176882  Madia anomala John Thomas Howell 1941-6-10 16284 Marin Black Point Comment
  UC1176884  Senecio hydrophilus John Thomas Howell 1946-9-20 23014 Marin Laguna in Chileno Valley; Laguna in Chileno Valley Comment
  UC1176886  Grindelia hirsutula John Thomas Howell 1945-7-29 21362 Marin ocean bluff at mouth Rio Honda (n of Bolinas) Comment
  UC1176887  Grindelia hirsutula John Thomas Howell 1939-7-2 14834 Marin Pirates Cove Comment
Read comments
Jun 12 2012
  UC1176888  Lasthenia californica subsp. macrantha John Thomas Howell 1939-6-4 Marin Point Reyes lighthouse Point Reyes Comment
  UC1176890  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1939-5-28 7395 Marin Pt. Reyes Lighthouse Comment
  UC1176891  Grindelia hirsutula John Thomas Howell 1939-7-16 14854 Marin between Mt. Theater and Bootjack; Mt. Tamalpais Comment
  UC1176892  Grindelia hirsutula John Thomas Howell 1944-9-10 20739 Marin Inverness Comment
  UC1176894  Grindelia hirsutula John Thomas Howell 1939-11-5 15387 Marin Sausalito Comment
  UC1176896  Grindelia hirsutula John Thomas Howell 1939-9-3 15330 Marin Corte Madera salt marsh Comment
  UC1176897  Grindelia hirsutula John Thomas Howell 1945-7-15 21292 Marin Ridgecrest Blvd at Fairfax City limits Comment
  UC1176898  Grindelia hirsutula John Thomas Howell 1946-5-16 21882 Marin w side Angel Island Comment
  UC1176903  Helianthus annuus John Thomas Howell 1946-9-20 23011 Marin Novato Comment
  UC1176905  Chorizanthe cuspidata John Thomas Howell 1946-7-4 22176 Marin Dillons Beach Comment
  UC1176909  Eriogonum luteolum var. caninum John Thomas Howell 1945-9-2 Marin Black Canyon San rafael Hills Comment
  UC1176910  Eriogonum luteolum var. luteolum John Thomas Howell 1945-8-12 21375 Marin near Mt. Theater; Mt. tamalpais Comment
  UC1176911  Eriogonum latifolium John Thomas Howell 1939-7-2 14825 Marin ridge between Tennessee Cove and Pirates Cove Comment
  UC1176912  Eriogonum nudum var. auriculatum John Thomas Howell 1939-7-2 14841 Marin between Big Lagoon and Muir Woods Comment
  UC1176916  Polygonum aviculare subsp. depressum John Thomas Howell 1939-7-2 14813 Marin Almonte Salt Marsh; border Comment
  UC1176917  Polygonum ramosissimum John Thomas Howell 1945-7-8 21284 Marin San Antonio Station Comment
  UC1176918  Microseris paludosa John Thomas Howell 1944-5-27 19501 Marin Summit Ave Mt. Tamalpais (Mt. Tamalpais) Comment
  UC1176923  Eriophyllum confertiflorum var. confertiflorum John Thomas Howell 1950-6-11 26628 Marin Throckmorton Ridge Mt. Tamalpais, Throckmorton Ridge Comment
  UC1176925  Chorizanthe cuspidata var. villosa John Thomas Howell 1946-6-9 21999 Marin Abbotts Lagoon Comment
  UC1176990  Rumex John Thomas Howell 1953-7-3 Marin Tamalpais Valley Comment
  UC1177009  Bromus tectorum John Thomas Howell 1943-5-9 17940 Marin San Rafael Comment
  UC1177010  Bromus madritensis subsp. rubens John Thomas Howell 1944-5-28 19515 Marin between Manzanita and Almonte Comment
  UC1177011  Bromus diandrus John Thomas Howell 1949-6-7 25343 Marin Aurora School, northern Marin County Aurora School Comment
  UC1177012  Bromus racemosus John Thomas Howell 1945-5-27 20885 Marin ne of Mountain Theater (Mount Tamalpais); Mount Tamalpais Comment
  UC1177014  Bromus carinatus var. carinatus John Thomas Howell 1948-5-31 24326 Marin Devils Gulch near Camp Taylor; Devils Gulch Comment
  UC1177016  Bromus laevipes John Thomas Howell 1944-6-18 19629 Marin Mount Tamalpais, Fish Grade, Phoenix to Lake Lagunitas Fish Grade; Mount Tamalpais, Fish Grade Comment
  UC1177018  Bromus carinatus var. carinatus John Thomas Howell 1947-5-8 23141 Marin Sausalito Comment
  UC1177023  Andropogon glomeratus var. pumilus John Thomas Howell 1939-10-15 Marin near Liberty Camp; near Liberty Camp Comment
  UC1177029  Agrostis exarata John Thomas Howell 1943-6-6 Marin railroad grade above Muir Woods Comment
  UC1177033  Agrostis pallens John Thomas Howell 1945-9-13 21465 Marin Pt. Reyes Peninsula, near radio station Pt. Reyes Peninsula Comment
  UC1177035  Agrostis stolonifera John Thomas Howell 1945-8-5 21363 Marin near Stinson Beach; McKinnans Landing Comment
  UC1177039  Agrostis pallens John Thomas Howell 1943-7-4 18268 Marin near Ledum Swamp; Pt. Reyes Peninsula Comment
  UC1177041  Agrostis alba John Thomas Howell 1943-7-3 18244 Marin Sausalito Comment
  UC1177070  Scribneria bolanderi John Thomas Howell 1952-5-30 28317 Marin along fire road between Mountain theater and Potrero Meadow (Mount Tamalpais); Mount Tamalpais Comment
  UC1177105  Leymus pacificus John Thomas Howell 1948-6-6 24335 Marin Stinson Beach Comment
  UC1177110  Deschampsia elongata John Thomas Howell 1946-5-19 21920 Marin Carson Ridge Comment
  UC1177111  Deschampsia elongata John Thomas Howell 1943-5-22 Marin Deer Park near Fairfax Comment
  UC1177112  Danthonia californica John Thomas Howell 1947-7-6 23326 Marin near Barths Retreat; Mt. Tamalpais Comment
  UC1177116  Digitaria sanguinalis John Thomas Howell 1941-7-6 Marin Ross Comment
  UC1177117  Briza minor John Thomas Howell 1942-6-7 Marin San Anselmo Canyon Comment
  UC1177118  Poa unilateralis John Thomas Howell 1939-6-4 Marin Pt Reyes Lighthouse Comment
  UC1177123  Poa douglasii John Thomas Howell 1946-5-4 21741 Marin Dillon's Beach Comment
  UC1177125  Calamagrostis koelerioides John Thomas Howell 1945-7-15 21309 Marin near Liberty Spring Comment
  UC1177129  Calamagrostis rubescens John Thomas Howell 1943-5-30 18184 Marin above Mill Valley; Mt. Tamalpais, Summit Avenue Ridge Comment
  UC1177174  Lotus grandiflorus John Thomas Howell 1944-4-2 19363 Marin Bolinas Ridge Comment
  UC1177176  Lupinus albifrons var. albifrons John Thomas Howell 1940-5-26 15544 Marin Little Carson Comment
  UC1177177  Lupinus albifrons var. douglasii John Thomas Howell 1947-5-25 23196 Marin Mt. Tamalpais; Mt. Tamalpais, Simmons Trail Comment
  UC1177178  Lupinus albifrons var. douglasii John Thomas Howell 1950-6-4 26622 Marin Mt. Tamalpais; Mt. Tamalpais, Blithedale Canyon Comment
  UC1177181  Lupinus variicolor John Thomas Howell 1939-6-4 14733 D Marin Pt. Reyes Peninsula Comment
  UC1177182  Lupinus arboreus var. eximius John Thomas Howell 1939-5-28 7385 Marin Pt. Reyes lighthouse Comment
  UC1177184  Lotus junceus var. biolettii John Thomas Howell 1944-6-4 19531 Marin Inverness Ridge Comment
  UC1177186  Lotus strigosus John Thomas Howell 1944-5-27 19505 Marin above Cascade Canyon (s side of Mt. Tamalpais); Mt. Tamalpais Comment
  UC1177188  Lotus scoparius John Thomas Howell 1940-9-15 Marin Stinson Beach Comment
  UC1177190  Lotus junceus var. biolettii John Thomas Howell 1939-6-4 14711 Marin Point Reyes lighthouse Point Reyes Comment
  UC1177191  Lotus humistratus John Thomas Howell 1944-5-28 19513 Marin between Manzanita and Almonte Comment
  UC1177194  Trifolium repens John Thomas Howell 1945-7-29 Marin Bolinas Comment
  UC1177196  Lotus stipularis var. stipularis John Thomas Howell 1944-4-2 19360 Marin Bolinas Ridge Comment
  UC1177198  Lotus uliginosus John Thomas Howell 1944-5-28 19525 Marin between Almonte and Mill Valley Comment
  UC1177203  Trifolium fucatum John Thomas Howell 1944-5-14 19473 Marin between Salmon Creek and Chileno Valley Comment
  UC1177205  Trifolium variegatum var. melananthum John Thomas Howell 1947-4-23 23064 Marin w Mt. Vision (Drakes Estero) Comment
  UC1177209  Trifolium willdenovii John Thomas Howell 1944-5-7 Marin Baltimore Park Comment
  UC1177210  Astragalus nuttallii var. virgatus John Thomas Howell 1946-5-16 21868 Marin Angel Island Comment
  UC1177211  Lupinus arboreus John Thomas Howell 1946-5-4 21736 Marin Dillons Beach Comment
  UC1177212  Lupinus variicolor John Thomas Howell 1946-6-13 22051 Marin e Aurora School (at Sonoma Co. line) Comment
  UC1177216  Lupinus formosus John Thomas Howell 1943-6-6 18211 Marin canyon just below Muir Woods; canyon just below Muir Woods Comment
  UC1177217  Lupinus formosus John Thomas Howell 1946-5-25 21934 Marin Greenbrae Hills Comment
  UC1177218  Lupinus formosus John Thomas Howell 1946-5-14 21848 Marin Tamalpais Valley Comment
  UC1177223  Genista monspessulana John Thomas Howell 1939-4-23 Marin Blithedale Canyon Comment
  UC1177225  Medicago lupulina John Thomas Howell 1947-5-8 Marin Sausalito Comment
  UC1177229  Lupinus formosus John Thomas Howell 1940-6-9 15582 Marin Tiburon Peninsula Comment
  UC1177233  Chamaecytisus prolifer John Thomas Howell 1947-5-4 23133 Marin San Rafael Hills Comment
  UC1177239  Amelanchier utahensis John Thomas Howell 1940-5-12 15419 Marin Lagunitas Creek Comment
Read comments
Jun 24 2011
  UC1177240  Heteromeles arbutifolia John Thomas Howell 1949-4-6 25300 Marin Black Point Comment
  UC1177241  Rubus ulmifolius var. inermis John Thomas Howell 1943-9-5 19313 Marin between Tamalpais Valley and Tamalpais High School; between Tamalpais Valley and Tamalpais H.S. Comment
  UC1177244  Oemleria cerasiformis John Thomas Howell 1946-6-16 22078 Marin Olema Marshes Comment
  UC1177247  Rubus ursinus John Thomas Howell 1943-4-11 17894 Marin Black Canyon San Rafael Hills, Black Canyon Comment
  UC1177248  Arabis glabra John Thomas Howell 1941-5-25 Marin Potrero Meadows Mt. Tamalpais Comment
  UC1177253  Cardamine californica var. integrifolia John Thomas Howell 1949-4-6 25297 Marin Ignacio Comment
  UC1177259  Lessingia hololeuca John Thomas Howell 1947-9-6 24178 Marin Chileno Valley Comment
  UC1177263  Solidago spathulata John Thomas Howell 1945-9-13 21463 Marin Drakes Estero Comment
  UC1177269  Eurybia radulina J. Thomas Howell 1946-9-15 23002 Marin near Potrero Meadows (Mt. Tamalpais); Mt. Tamalpais Comment
  UC1177271  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1939-7-2 14831 Marin ridge between Tennessee Cove and Pirates Cove Comment
  UC1177272  Heterotheca oregona var. oregona John Thomas Howell 1943-9-5 19319 Marin s of Mill Valley (along railroad) Comment
  UC1177274  Lessingia hololeuca John Thomas Howell 1946-9-8 22992 Marin near Ignacio Comment
  UC1177276  Stephanomeria elata John Thomas Howell 1945-9-2 21456 Marin San Rafael Hills Comment
  UC1177278  Stephanomeria virgata subsp. pleurocarpa John Thomas Howell 1945-7-15 21295 Marin Fairfax hills Fairfax Comment
  UC1177281  Stephanomeria elata John Thomas Howell 1946-9-22 Marin Phoenix Lake Mt. Tamalpais Comment
  UC1177282  Lactuca serriola John Thomas Howell 1939-11-5 Marin Manzanita Comment
  UC1177284  Corethrogyne filaginifolia John Thomas Howell 1943-7-4 Marin near Ledum Swamp; Point Reyes Comment
  UC1177286  Crepis capillaris John Thomas Howell 1945-7-29 21338 Marin Bolinas Comment
  UC1177287  Hedypnois rhagadioloides John Thomas Howell 1947-6-18 23278 Marin near Dillons Beach Comment
  UC1177288  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-9-2 21457 Marin San Rafael Hills Comment
  UC1177290  Sonchus oleraceus John Thomas Howell 1945-7-8 21281 Marin Burdell Comment
  UC1177291  Cirsium andrewsii J. Thomas Howell 1947-6-18 23275 Marin Dillons Beach Comment
  UC1177292  Cirsium douglasii var. douglasii J. Thomas Howell 1947-6-18 23286 Marin n of Dillons Beach Comment
  UC1177296  Gamochaeta ustulata John Thomas Howell 1946-5-4 21752 Marin Dillons Beach Comment
  UC1177297  Pseudognaphalium luteoalbum John Thomas Howell 1943-5-9 17948 Marin San Rafael Comment
  UC1177298  Logfia filaginoides John Thomas Howell 1946-5-12 21800 Marin Carson Ridge Comment
  UC1177300  Centaurea calcitrapa J. Thomas Howell 1944-6-25 Marin Santa Venetia Comment
  UC1177301  Centaurea calcitrapa J. Thomas Howell 1938-11-5 Marin Sausalito Comment
  UC1177302  Conyza canadensis John Thomas Howell 1945-10-14 Marin Olema Marshes Comment
  UC1177304  Cirsium occidentale var. venustum John Thomas Howell 1947-7-9 23330 Marin between Phoenix and Lagunitas Lakes; Mt. Tamalpais, Fish Grade Comment
  UC1177306  Cirsium occidentale var. occidentale J. Thomas Howell 1942-5-16 16956 Marin Sausalito Hills Comment
  UC1177307  Carthamus lanatus J. Thomas Howell 1946-9-20 23020 Marin Chileno Valley Comment
  UC1177308  Cirsium arvense J. Thomas Howell 1946-9-20 23022 Marin e of Tomales (Petaluma Road) Comment
  UC1177313  Lasthenia californica subsp. californica John Thomas Howell 1947-4-23 23069 Marin w of Mt. Vision; Drakes Estero Comment
  UC1177315  Calycadenia multiglandulosa J. Thomas Howell 1946-6-20 22109 Marin 4 mi s Olema Comment
  UC1177321  Achyrachaena mollis J. Thomas Howell 1946-4-18 21672 Marin Black Point Comment
  UC1177322  Madia sativa John Thomas Howell 1945-7-15 21293 Marin at Fairfax city limits (Ridgecrest Blvd) Comment
  UC1177324  Quercus X chasei John Thomas Howell 1946-12-22 23035 Marin Greenbrae Hills Comment
  UC1177326  Chrysolepis chrysophylla var. minor John Thomas Howell 1947-7-6 23327 Marin above Phoenix Lake (Eldridge Grade, above Mt. Tamalpais); Mt. Tamalpais Comment
  UC1177327  Potamogeton nodosus John Thomas Howell 1939-8-27 15319 Marin Phoenix Lake Comment
  UC1177328  Brodiaea elegans subsp. elegans John Thomas Howell 1942-6-21 Marin San Anselmo Canyon Comment
  UC1177330  Brodiaea terrestris subsp. terrestris John Thomas Howell 1941-6-10 16296 Marin 9 mi w Novato Comment
  UC1177332  Allium dichlamydeum John Thomas Howell 1947-6-18 23276 Marin Dillons Beach Comment
  UC1177334  Xerophyllum tenax John Thomas Howell 1947-5-25 23201 Marin Kent Trail near Willow Meadow (Mount Tamalpais); Mount Tamalpais Comment
  UC1177385  Spiranthes porrifolia John Thomas Howell 1946-7-7 22212 Marin Potrero Meadow Mt. Tamalpais Comment
  UC1177389  Sparganium erectum subsp. stoloniferum John Thomas Howell 1946-6-30 22165 Marin Rodeo Lagoon Comment
Read comments
Sep 25 2008
  UC1177393  Sagittaria brevirostra John Thomas Howell 1947-6-18 23261 Marin Chileno Valley Comment
  UC1177395  Calochortus amabilis John Thomas Howell 1946-5-25 21944 Marin w of Corte Madera; Mt. Tamalpais Comment
  UC1177400  Juncus effusus subsp. pacificus John Thomas Howell 1942-7-12 17023 Marin Potrero Meadow Mt. Tamalpais Comment
  UC1177401  Juncus effusus subsp. pacificus John Thomas Howell 1943-7-4 18252 Marin on road to Pt. Reyes Ledum Swamp Comment
  UC1177404  Juncus occidentalis John Thomas Howell 1944-6-25 19646 Marin Santa Venetia Comment
  UC1177407  Typha John Thomas Howell 1948-9-19 25289 Marin Mt. Tamalpais; Mt. Tamalpais, Phoenix Lake Comment
  UC1177408  Quercus X subconvexa John Thomas Howell 1941-7-6 16364 Marin Hidden Lake Mt. Tamalpais Comment
  UC1177415  Quercus X subconvexa John Thomas Howell with John Tucker 1947-8-31 24175 Marin n of Alpine Lake (Ridgecrest Road) Comment
  UC1177419  Quercus berberidifolia John Thomas Howell 1947-8-31 24176 Marin sw of (above) Meadows Club (Ridgecrest Road) Comment
  UC1177420  Typha domingensis John Thomas Howell 1948-9-19 25287 Marin Phoenix Lake Mt. Tamalpais; , Phoenix Lake Comment
  UC1177422  Hypericum formosum var. scouleri John Thomas Howell 1947-7-6 23322 Marin between Rock Spring and Laurel Dell (Mt. Tamalpais); Mt. Tamalpais Comment
  UC1177427  Moehringia macrophylla John Thomas Howell 1946-7-7 22210 Marin Potrero Meadow Mt. Tamalpais; , Potrero Meadow Comment
  UC1177432  Rosa spithamea John Thomas Howell 1946-9-8 23001 Marin sw Lake Lagunitas; Mt. Tamalpais Comment
  UC1177434  Rosa eglanteria John Thomas Howell 1946-6-13 22057 Marin n Dillons Beach; Estero School Comment
  UC1177443  Oxalis albicans subsp. pilosa John Thomas Howell 1939-4-23 14607 Marin Blythe Canyon Mill Valley Comment
  UC1177445  Myriophyllum aquaticum John Thomas Howell 1946-6-16 22089 Marin Desiccated pond, Point Reyes Station. Comment
  UC1177449  Ceanothus John Thomas Howell 1947-5-25 23199 Marin Simmons Trail Mt. Tamalpais; , Simmons Trail Comment
  UC1177451  Rhamnus crocea John Thomas Howell 1946-5-16 21884 Marin w side Angel Island Comment
  UC1177452  Cardionema ramosissimum John Thomas Howell 1945-6-3 20915 Marin near Inverness Comment
  UC1177454  Mentzelia laevicaulis var. laevicaulis John Thomas Howell 1945-9-16 21488 Marin n San Rafael (along railroad) Comment
  UC1177458  Lupinus nanus John Thomas Howell 1947-4-23 23072 Marin Drakes Estero w Mt. Vision; Drakes Estero w of Mt. Vision Comment
  UC1177461  Vicia sativa subsp. nigra John Thomas Howell 1946-5-12 21760 Marin near Fairfax Comment
  UC1177462  Vicia hirsuta John Thomas Howell 1943-7-4 18281 Marin near Inverness Comment
  UC1177466  Vicia gigantea John Thomas Howell 1949-6-12 25348 Marin Corte Madera Ridge; Mt. Tamalpais Comment
  UC1177468  Vicia sativa subsp. nigra John Thomas Howell 1945-6-3 20919 Marin near Inverness Comment
  UC1177473  Polygala californica John Thomas Howell 1948-5-29 Marin Fern Canyon Mt. Tamalpais, Fern Canyon Comment
  UC1177479  Lupinus bicolor John Thomas Howell 1946-4-13 21596 Marin Mt. Tamalpais , Summit Meadow to Rock Spring (Summit Meadow to Rock Spring) Comment
  UC1177483  Phalaris minor John Thomas Howell 1944-5-28 19511 Marin between Manzanita and Almonte Comment
  UC1177495  Panicum acuminatum var. acuminatum John Thomas Howell 1945-5-27 Marin Bootjack; Mt. Tamalpais Comment
  UC1177502  Polypodium John Thomas Howell 1947-3-23 23046 Marin Cataract Gulch Mt. Tamalpais Comment
  UC1177506  Equisetum arvense John Thomas Howell 1944-3-26 19340 Marin Inverness Comment
  UC1177507  Polypodium glycyrrhiza John Thomas Howell 1943-5-2 Marin Big Carson Comment
  UC1177513  Pilularia americana John Thomas Howell 1947-7-7 25357 Marin strand of Lake Lagunitas Comment
  UC1177515  Azolla filiculoides John Thomas Howell 1946-6-30 22170 Marin Rodeo Lagoon Comment
  UC1422872  Clarkia amoena subsp. amoena John Thomas Howell 1946-6-9 22012 Marin Pierce Ranch Pt. Reyes Peninsula Comment
  UC1598599  Holocarpha virgata subsp. virgata John Thomas Howell 1956-9-13 31876 Marin near Lake Lagunitas; Lagunitas Meadows Comment
  UC2055636  Stachys pycnantha John Thomas Howell 1937-7-4 13091 Marin Tiburon. Comment
  UC421670  Lomatium dasycarpum subsp. dasycarpum John Thomas Howell 1930-4-20 4718 Marin 1 mi. e. Lagunitas Comment
  UC421701  Limonium californicum John Thomas Howell 1926-9-9 2188 Marin salt marsh near San Rafael Comment
  UC450610  Scribneria bolanderi John Thomas Howell 1945-4-29 20791 Marin w of Camp Handy (Mount Tamalpais); Mount Tamalpais Comment
  UC473460  Monardella villosa subsp. villosa John Thomas Howell 1930-7-20 5382 Marin Slope southeast side Mt. Tamalpais along Wheeler Trail. Comment
  UC518009  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1933-3-19 10868 Marin above Mill Valley (s side of mt.); Mt. Tamalpais Comment
  UC618390  Streptanthus glandulosus subsp. secundus John Thomas Howell 1938-7-3 13945 Marin serpentine slope at head of valley Lucas Valley Comment
  UC618481  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-5-22 13791 Marin San Anselmo Canyon Comment
  UC618502  Navarretia squarrosa John Thomas Howell 1938-6-19 13916 Marin Throckmorton Trail Mt. Tamalpais Comment
  UC702963  Phacelia distans John Thomas Howell 1930-4-20 4741 Marin Pt. Reyes Comment
  UC702993  Phacelia californica John Thomas Howell 1930-7-20 5384 Marin se side Mt. Tamalpais Comment
  UC703117 Image available Sidalcea hickmanii subsp. viridis John Thomas Howell 1942-6-21 16997 Marin Carson Ridge Comment
  UC710413  Streptanthus glandulosus subsp. secundus John Thomas Howell 1943-5-9 17976 Marin San Rafael Hills Comment
  UC710451  Carex harfordii John Thomas Howell 1943-7-4 18266 Marin near Ledum Swamp; Pt. Reyes Peninsula Comment
  UC710506  Carex cusickii John Thomas Howell 1943-7-11 18283 Marin Potrero Meadows Mt. Tamalpais, Potrero Meadows Comment
  UC710607  Cakile maritima John Thomas Howell 1943-10-3 19333 Marin Muir Beach Comment
  UC710609  Lotus uliginosus John Thomas Howell 1944-7-30 19856 Marin between head of salt marshes and Mill Valley 3 Comment
  UC710611  Lactuca saligna John Thomas Howell 1943-9-5 19324 Marin Mill Valley 7 Comment
  UC710621  Senecio minimus John Thomas Howell 1944-7-30 19857 Marin Almonte Comment
  UC710624  Atriplex semibaccata John Thomas Howell 1943-11-21 19338 Marin Salt marshes w San Quentin (near Greenbrae); , w of San Quentin Comment
  UC750549  Lessingia hololeuca John Thomas Howell 1945-9-16 21484 Marin n San Rafael (and e of San Venetia) Comment
  UC750589  Leontodon saxatilis John Thomas Howell 1945-7-29 21333 Marin Bolinas Comment
  UC750591  Carduus pycnocephalus subsp. pycnocephalus J. Thomas Howell 1946-5-4 21754 Marin near Burdell (along Redwood Highway); Redwood Highway Comment
  UC750599  Vicia benghalensis John Thomas Howell 1945-5-20 Marin Tiburon Comment
  UC750601  Lathyrus tingitanus John Thomas Howell 1945-7-1 21260 Marin Tiburon Comment
  UC750607  Quercus garryana John Thomas Howell 1945-7-15 21301 Marin near Camp Lilienthal; Fairfax Hills Comment
  UC750608  Centunculus minimus John Thomas Howell 1945-6-12 20945 Marin Mount Tamalpais, Potrero Meadow Potrero Meadow; Mount Tamalpais, Potrero Meadow Comment
  UC750609  Holozonia filipes John Thomas Howell 1945-8-12 21372 Marin Rock Spring Mt. Tamalpais, Rock Spring Comment
  UC750611  Pleuropogon californicus John Thomas Howell 1945-5-9 20828 Marin between Hamilton Field and Ignacio Comment
  UC750706  Pentachaeta bellidiflora John Thomas Howell 1946-5-25 21933 Marin Greenbrae Hills Comment
  UC851448  Amaranthus californicus John Thomas Howell 1939-9-3 15352 Marin San Antonio Creek Comment
  UC897707  Deinandra corymbosa John Thomas Howell 1939-9-3 15336 Marin near Black Point Comment
  UC904991  Carex densa John Thomas Howell 1944-4-23 19401 Marin hills SE of Kentfield Comment
  UC904998  Carex tumulicola John Thomas Howell 1943-5-2 17929 A Marin Big Carson Canyon Comment
  UC905002  Carex bolanderi John Thomas Howell 1944-6-4 19540 Marin w Inverness; Inverness Ridge Comment
  UC905015  Carex subbracteata John Thomas Howell 1943-5-22 18158 Marin Lagunitas Meadows Comment
  UC905051  Scrophularia californica John Thomas Howell 1948-6-6 24331 Marin Bolinas Bay Sand Spit Comment
  UC905068  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-24 25307 Marin Fort McDowell Angel Island, Fort McDowell Comment
  UC905069  Cypselea humifusa John Thomas Howell 1947-10-19 24184 Marin Alpine Lake Comment
  UC905070  Erodium brachycarpum John Thomas Howell 1947-4-23 23075 Marin e side Drakes Estero; Point Reyes Peninsula Comment
  UC908102  Navarretia viscidula John Thomas Howell 1945-7-15 21303 Marin sw of Fairfax (near Meadow Club) Comment
  UC908798  Navarretia heterodoxa John Thomas Howell 1945-7-15 21308 Marin near Liberty Camp Comment
  UC908874  Navarretia squarrosa J. T. Howell 1945-9-2 Marin Black Canyon San Rafael Hills Comment
  UC909679  Blennosperma nanum var. robustum J. Thomas Howell 1947-5-14 23153 Marin above, along Point Reyes Peninsula McClure Beach; Point Reyes Peninsula Comment
  UCD103483  Pelargonium grossularioides John Thomas Howell 1944-7-23 19842 Marin San Rafael. 60 Comment
  UCD106628  Lupinus arboreus John Thomas Howell 1958-7-6 33642 Marin south side of Mt. Tamalpais above Cascade Canyon. Comment
  UCD106705  Lotus uliginosus John Thomas Howell 1944-7-30 19856 Marin Between Mill Valley and head of salt marshes. 3 Comment
  UCD113765  Rubus armeniacus John Thomas Howell 1943-8-29 19311 Marin Summit Avenue, Mill Valley. Comment
  UCD120690  Phacelia suaveolens John Thomas Howell 1946-5-19 21919 Marin Carson Ridge. Comment
  UCD47295  Quercus X subconvexa John Thomas Howell 1952-5-15 28314 Marin Serpentine at south end of Tiburon Peninsula, Marin Co. Comment
  UCD47323  Quercus X subconvexa John Thomas Howell 1959-8-23 34601 Marin (Q. durata X Q. garryana). Near Barth's Retreat, Mount Tamalpais, Marin County. Comment
  UCD48557  Navarretia rosulata John Thomas Howell 1952-9-7 28854 Marin Barths Retreat, Mt. Tamalpais, Marin County. Comment
  UCD51755  Agrostis hendersonii John Thomas Howell 1947-4-23 23062 Marin Pt. Reyes Peninsula, Drakes Estero, west of Mt. Vision. Comment
Read comments
Nov 29 2010
  UCD51796  Agrostis avenacea John Thomas Howell 1971-6-2 47649 Marin borderin S.F. Bay on road from San Rafael to McNear's. Comment
  UCD51982  Agrostis densiflora John Thomas Howell 1945-7-4 21274 Marin Inverness. Comment
  UCD51986  Agrostis densiflora John Thomas Howell 1945-7-1 21264 Marin Tiburon. Comment
  UCD52363  Agrostis exarata John Thomas Howell 1945-6-24 21234 Marin Laurel Dell, Mt. Tamalpais. Comment
  UCD52386  Agrostis exarata John Thomas Howell 1945-6-24 21235 Marin Barths Retreat, Mt. Tamalpais. Comment
  UCD52516  Agrostis exarata John Thomas Howell 1944-6-25 19661 Marin between Santa Venetia and Chinese Camp. Comment
  UCD59917  Crypsis schoenoides John Thomas Howell 1980-9-8 53895 Marin Alpine Lake near Bon Tempe Lake dam. Comment
  UCD85581  Carduus pycnocephalus John Thomas Howell 1946-5-4 21754 Marin along Redwood Highway near Burdell. Comment
  UCD86231  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-24 25307 Marin Angel Island. Fort McDowell. Comment
  UCD86395  Stenotaphrum secundatum John Thomas Howell 1945-7-22 21330 Marin West of Mill Valley on road to Muir Woods. Comment
  UCD90097  Pleuropogon hooverianus John Thomas Howell 1943-5-22 18155 Marin Lagunitas Meadows. Comment
  UCD90155  Pleuropogon californicus var. californicus John Thomas Howell 1945-5-9 20828 Marin between Hamilton Field and Ignacio. Comment
  UCD90982  Polypogon australis John Thomas Howell 1967-6-8 42547 Marin Inverness. Comment
  UCD96976  Cypselea humifusa John Thomas Howell 1947-10-19 24184 Marin Desiccated strand of Alpine Lake. Comment
  UCD98508  Limonium californicum John Thomas Howell 1945-8-19 21431 Marin Drakes Bay. Comment
  UCD99204  Spergularia media var. media John Thomas Howell 1944-4-23 19397 Marin Escalle. Comment
  UCD99207  Spergularia villosa John Thomas Howell 1944-6-25 19643 Marin Santa Venetia. 7 Comment
  UCR143231  Scrophularia californica J. T. Howell 1948-6-6 24331 Marin Bolinas Bay Sand Spit 2 Comment
  UCR80275  Pelargonium grossularioides J. T. Howell 1944-7-23 19842 Marin San Francisco Bay region, San Rafael 61 Comment
  UCSB2958  Acacia dealbata Howell, John 1943-8-29 Marin Summit (Avenue) ridge above Mill Valley 152 Comment
  CAS-BOT-BC101677  Myrica californica John Thomas Howell 1927-4-23 2351 Marin About 1 mile east of Big Lagoon 30 Comment
  CAS-BOT-BC10182  Delphinium hesperium John Thomas Howell 1946-5-12 21766 Marin Meadows Club, Fairfax Hill Comment
  CAS-BOT-BC111240  Schoenoplectus californicus John Thomas Howell 1969-9-25 46229 Marin Tiburon Comment
  CAS-BOT-BC111247  Schoenoplectus californicus John Thomas Howell 1939-10-1 15368 Marin Phoenix Lake Comment
  CAS-BOT-BC111568  Schoenoplectus americanus John Thomas Howell 1944-9-10 20724 Marin Marshes north of Olema Comment
  CAS-BOT-BC112393  Isolepis carinata John Thomas Howell 1927-5-8 2369 Marin Low place in grassland north of Lake Lagunitas Comment
  CAS-BOT-BC112468  Isolepis cernua John Thomas Howell 1933-7-30 11473 Marin North of Lagunitas Creek Comment
  CAS-BOT-BC112470  Isolepis cernua John Thomas Howell 1941-7-6 s.n. Marin Kent Trail at Willow Mdws., Mt Tamalpais. Comment
  CAS-BOT-BC112862  Eleocharis macrostachya John Thomas Howell 1941-6-10 16298 Marin 9 mi. N of Novato Comment
  CAS-BOT-BC112864  Eleocharis macrostachya John Thomas Howell 1939-8-27 15325 Marin Lake Lagunitas Comment
  CAS-BOT-BC112868  Eleocharis macrostachya John Thomas Howell 1944-4-23 19398 Marin San Rafel Comment
  CAS-BOT-BC114725  Cyperus difformis John Thomas Howell 1945-1-7 20771 Marin CCC Camp above Muir Woods, Mt. Tamalpais. Comment
  CAS-BOT-BC116900  Carex subbracteata var. subbracteata John Thomas Howell; J. W. Stacey 1936-6-7 12633 Marin San Geronimo Comment
  CAS-BOT-BC117699  Carex simulata John Thomas Howell 1946-6-20 22102 Marin East side of Bolinas Lagoon. Comment
  CAS-BOT-BC118430  Carex praegracilis John Thomas Howell 1944-4-23 19404 Marin Edge of salt marsh, hills SE of Kentfield. Comment
  CAS-BOT-BC119395  Carex obnupta John Thomas Howell; J. W. Stacey 1936-6-7 12646 Marin Ledlum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC119525  Carex nudata John Thomas Howell 1947-6-15 s.n. Marin E of Bootjack, Mt. Tamalpais. Comment
  CAS-BOT-BC12794  Lepidium perfoliatum John Thomas Howell 1944-5-28 19512 Marin Between Manzanita and Almonte. Comment
  CAS-BOT-BC12852  Lepidium pinnatifidum John Thomas Howell 1976-6-2 51804 Marin Corte Madera. In park. Comment
  CAS-BOT-BC130022  Fritillaria affinis John Thomas Howell 1950-3-28 26304 Marin Pt. Reyes near the lighthouse Comment
  CAS-BOT-BC136453  Solanum rostratum J. T. Howell 1985-7-6 s.n. Marin Terra Linda. Nazareth House gardens. Comment
  CAS-BOT-BC13729  Ambrosia chamissonis John Thomas Howell 1943-9-5 19316 Marin Between Tamalpais Valley and Tamalpais High School Comment
  CAS-BOT-BC138322  Aira caryophyllea var. caryophyllea John Thomas Howell 1966-5-25 41539 Marin John Thomas Howell Botanical Garden, Tiburon. Gully just north of garden area. Comment
  CAS-BOT-BC146282  Arrhenatherum elatius var. elatius John Thomas Howell 1947-6-4 23224 Marin San Geronimo. Comment
  CAS-BOT-BC146893  Rosa rubiginosa John Thomas Howell 1959-11-4 s.n. Marin East of Tomales Comment
  CAS-BOT-BC151938  Diplacus douglasii John Thomas Howell 1943-4-3 17892 Marin Tiburon Peninsula Comment
  CAS-BOT-BC152295  Diplacus congdonii John Thomas Howell 1946-3-24 21586 Marin Burned area in Carson country. Comment
  CAS-BOT-BC156286  Bromus catharticus John Thomas Howell 1959-11-4 35108 Marin In west part of Frank Valley. Comment
  CAS-BOT-BC157407  Solanum umbelliferum J. T. Howell 1942-6-21 s.n. Marin San Anselmo Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC160264  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John Thomas Howell 1945-6-3 20939 Marin Twin Beaches = Shell Beach Comment
  CAS-BOT-BC164605  Clarkia gracilis subsp. gracilis John Thomas Howell 1946-6-23 22119 Marin Head of Little Carson Canyon Comment
  CAS-BOT-BC165066  Clarkia rubicunda John Thomas Howell 1972-6-18 48869 Marin Near Ring Hill, Tiburon Peninsula 167 Comment
  CAS-BOT-BC172453  Clarkia purpurea subsp. purpurea John Thomas Howell 1947-7-6 23321 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC175354  Stellaria borealis subsp. sitchana John Thomas Howell 1944-6-4 19572 Marin Mt. Vision west of Inverness Comment
  CAS-BOT-BC175946  Plectritis ciliosa subsp. insignis John Thomas Howell 1946-3-17 s.n. Marin Between Bootjack & Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC175951  Solanum aviculare John Thomas Howell 1957-6-27 32778 Marin On roadside Steep Ravine, Mt. Tamalpais Comment
  CAS-BOT-BC175952  Salpichroa origanifolia John Thomas Howell 1943-6-13 18224 Marin Sausalito Comment
  CAS-BOT-BC175955  Solanum lycopersicum John Thomas Howell 1967-9-6 43735 Marin NW. of Old St. Hilary's Church, Tiburon Comment
  CAS-BOT-BC176101  Verbena lasiostachys var. scabrida John Thomas Howell 1939-10-15 15377 Marin Lily Lake Comment
  CAS-BOT-BC178301  Astragalus gambelianus John Thomas Howell 1942-4-19 16942 Marin Big Carson Canyon near Warm Springs Comment
  CAS-BOT-BC178302  Astragalus gambelianus John Thomas Howell 1946-5-12 21807 Marin Carson Ridge Comment
  CAS-BOT-BC184807  Vulpia myuros subsp. megalura John Thomas Howell 1948-5-16 24299 Marin Upper part of Cascade Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC184811  Vulpia myuros subsp. megalura John Thomas Howell 1948-5-16 24299 Marin Upper part of Cascade Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC185022  Calamagrostis rubescens John Thomas Howell 1943-5-30 18184 Marin Mount Tamalpais. Above Summit Avenue. Comment
  CAS-BOT-BC19455  Carex bolanderi John Thomas Howell 1944-7-7 s.n. Marin Mt Tamalpais. Fish Grade. Comment
  CAS-BOT-BC19893  Carex echinata subsp. phyllomanica John Thomas Howell 1949-5-25 25331 Marin Marsh near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC19896  Carex echinata subsp. phyllomanica John Thomas Howell 1949-5-25 25331 Marin Marsh near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC20883  Carex globosa John Thomas Howell 1952-5-30 28318 Marin Potrero Meadow, Mt. Tamalpais. Comment
  CAS-BOT-BC20886  Carex globosa John Thomas Howell 1933-4-30 11193 Marin North side of Mt. Tamalpais. Comment
  CAS-BOT-BC218487  Angelica hendersonii John Thomas Howell 1944-7-9 19704 Marin Inverness Ridge Comment
  CAS-BOT-BC219429  Nemophila parviflora John Thomas Howell 1939-6-4 14709 Marin Lagunitas Comment
  CAS-BOT-BC219430  Nemophila parviflora John Thomas Howell 1939-4-23 14619 Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC220397  Monardella purpurea John Thomas Howell 1943-5-15 s.n. Marin Tiburon Peninsula Comment
  CAS-BOT-BC220400  Monardella purpurea John Thomas Howell 1972-6-18 48867 Marin Near Ring Hill, Tiburon Peninsula 167 Comment
  CAS-BOT-BC220415  Monardella purpurea John Thomas Howell 1943-6-13 s.n. Marin Sausalito Comment
  CAS-BOT-BC220418  Monardella purpurea John Thomas Howell 1939-5-21 14689 Marin West side Tiburon Peninsula Comment
  CAS-BOT-BC22145  Carex harfordii John Thomas Howell 1949-5-25 25335 Marin Sandy flats behind dunes, Point Reyes Peninsula. Comment
  CAS-BOT-BC224338  Calystegia subacaulis subsp. subacaulis John Thomas Howell 1939-5-14 14673 Marin Lower end of Berry Trail, Mt. Tamalpais Comment
  CAS-BOT-BC224495  Cuscuta californica John Thomas Howell 1944-9-3 20714 Marin Head of Cascade Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC224498  Cuscuta californica John Thomas Howell 1967-5-24 42257 Marin Dakin Lane, just north of Old St. Hilary's Church, Tiburon Comment
  CAS-BOT-BC224507  Cuscuta californica John Thomas Howell 1946-7-3 18246 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC22901  Agoseris heterophylla John Thomas Howell 1941-6-8 s.n. Marin San Raphael Hills Comment
  CAS-BOT-BC232714  Navarretia rosulata John Thomas Howell 1946-7-7 22191 Marin Mount Tamalpais. Burned area S of Barth's Retreat Comment
  CAS-BOT-BC236910  Chloropyron maritimum subsp. palustre John Thomas Howell 1945-8-19 21430 Marin Salt marsh at hed of Drakes Bay Comment
  CAS-BOT-BC238512  Triphysaria floribunda John Thomas Howell 1930-4-20 4743 Marin 1.5 miles from Pt. Reyes on road to Inverness Comment
  CAS-BOT-BC240011  Scribneria bolanderi John Thomas Howell 1945-4-29 20791 Marin West of Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC240192  Setaria viridis John Thomas Howell 1961-9-14 36707 Marin At head of Bolinas Lagoon Comment
  CAS-BOT-BC240193  Setaria viridis John Thomas Howell 1954-9-23 30110 Marin Milton H. Esberg place, Ross Comment
  CAS-BOT-BC253867  Panicum miliaceum John Thomas Howell 1988-7-14 s.n. Marin In Terra Linda Comment
  CAS-BOT-BC254488  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1941-6-29 16340 Marin Between Rock Spring and Laurel Dell, Mount Tamalpais Comment
  CAS-BOT-BC259194  Eriogonum latifolium John Thomas Howell 1941-6-29 s.n. Marin Rock Spring to Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC259195  Eriogonum latifolium John Thomas Howell 1941-6-10 16306 Marin Summit between Lucas and Gallinas valleys Comment
  CAS-BOT-BC259199  Eriogonum latifolium John Thomas Howell 1966-5-25 41532 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC259664  Paspalum dilatatum John Thomas Howell 1945-8-5 21364 Marin McKinnon's Landing near Stinson Beach Comment
  CAS-BOT-BC264160  Melica subulata John Thomas Howell 1945-8-5 s.n. Marin Dipsea Trail, head of Kent Ravine, Mt. Tamalpais Comment
  CAS-BOT-BC267193  Potamogeton foliosus John Thomas Howell 1946-9-29 s.n. Marin Back of beach, Stinson Beach Comment
  CAS-BOT-BC272083  Centaurea cyanus John Thomas Howell 1929-6-25 s.n. Marin Near Eastwood place, Mill Valley Comment
  CAS-BOT-BC272253  Leymus X multiflorus John Thomas Howell 1946-6-30 22143 Marin Rodeo Lagoon Comment
  CAS-BOT-BC272254  Leymus X multiflorus John Thomas Howell 1946-6-30 22148 Marin Rodeo Lagoon Comment
  CAS-BOT-BC272256  Leymus X multiflorus John Thomas Howell 1943-7-11 18287 Marin Mill Valley Comment
  CAS-BOT-BC273568  Leymus californicus John Thomas Howell 1945-6-12 20948 Marin Lagunitas Comment
  CAS-BOT-BC273569  Leymus californicus John Thomas Howell 1944-7-7 19675 Marin Fish Grade between Phoenix and Lagunitas Lakes Comment
  CAS-BOT-BC273983  Leptochloa fusca subsp. fascicularis John Thomas Howell 1970-9-8 47229 Marin West of Nicasio Dam on road to Point Reyes (town) Comment
  CAS-BOT-BC274568  Centaurea calcitrapa John Thomas Howell; Conrad V. Morton 1956-8-1 31743 Marin Summit ridge of Mt. Tamalpais Comment
  CAS-BOT-BC280753  Holcus lanatus John Thomas Howell 1947-5-14 23171 Marin Near Ledum Swamp, Pt. Reyes Peninsula Comment
  CAS-BOT-BC281331  Melica harfordii John Thomas Howell 1941-6-29 16327 Marin Near Camp Van Wyck, Mt Tamalpais Comment
  CAS-BOT-BC281720  Carduus pycnocephalus John Thomas Howell 1945-6-3 20917 Marin Near Inverness Comment
  CAS-BOT-BC282628  Gastridium phleoides John Thomas Howell 1939-7-16 s.n. Marin Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC282797  Glyceria leptostachya John Thomas Howell 1946-9-8 22999 Marin Lagunitas Creek just below Lake Lagunitas, Mt. Tamalpais Comment
  CAS-BOT-BC283519  Leymus X vancouverensis John Thomas Howell 1944-9-10 20732 Marin Near Inverness Comment
  CAS-BOT-BC283523  Leymus X vancouverensis John Thomas Howell 1945-6-30 21251 Marin Stinson Beach Comment
  CAS-BOT-BC28387  Carex gracilior John Thomas Howell 1945-5-9 20849 Marin Ignacis Comment
  CAS-BOT-BC284136  Eragrostis pectinacea var. pectinacea John Thomas Howell 1959-11-4 35117 Marin Reservoir north of Point Reyes (town) Comment
  CAS-BOT-BC286522  Cirsium occidentale var. venustum John Thomas Howell 1947-7-9 23331 Marin On Fish Grade, Mt. Tamalpais Comment
  CAS-BOT-BC286530  Cirsium occidentale var. venustum John Thomas Howell 1941-7-6 16372 Marin Fish Grade Comment
  CAS-BOT-BC28668  Achillea millefolium John Thomas Howell 1939-9-3 15354 Marin At mouth of San Antonio Creek Comment
  CAS-BOT-BC288731  Cirsium remotifolium John Thomas Howell 1938-7-3 13942 Marin Near W end of Lucas Valley Comment
  CAS-BOT-BC288732  Cirsium remotifolium John Thomas Howell 1943-5-30 18180 Marin Summit Ave, Mill Valley, Mt Tamalpais Comment
  CAS-BOT-BC288733  Cirsium remotifolium John Thomas Howell 1939-6-25 14795 Marin Summit Ave, Mill Valley, Mt Tamalpais Comment
  CAS-BOT-BC288738  Cirsium remotifolium John Thomas Howell 1936-6-7 12631 Marin Whites Hill E of San Geronimo Comment
  CAS-BOT-BC288739  Cirsium remotifolium John Thomas Howell 1936-6-7 12631 Marin White's Hill E of San Geronimo Comment
  CAS-BOT-BC291496  Crepis capillaris John Thomas Howell 1944-7-9 19715 Marin South of Tomales Bay Comment
  CAS-BOT-BC291498  Crepis capillaris John Thomas Howell 1957-7-22 32821 Marin Pt. Reyes Station Comment
  CAS-BOT-BC292098  Delairea odorata John Thomas Howell 1939-9-10 s.n. Marin Stinson Beach Comment
  CAS-BOT-BC29524  Agoseris apargioides J. T. Howell 1930-4-20 4730 Marin On slope overlooking the ocean, Point Reyes Comment
  CAS-BOT-BC295437  Erigeron karvinskianus John Thomas Howell 1947-5-4 23135 Marin San Rafael Comment
  CAS-BOT-BC300241  Erigeron reductus var. angustatus John Thomas Howell 1972-6-18 48875 Marin Above Vista de la Bahia at north end of Tiburon Peninsula Comment
  CAS-BOT-BC301210  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1939-4-23 14602 Marin Blythedale Canyon, Mill Valley Comment
  CAS-BOT-BC30259  Brassica nigra John Thomas Howell 1939-5-21 14691 Marin West side of Tiburon Peninsula. Comment
  CAS-BOT-BC303407  Gamochaeta ustulata John Thomas Howell 1946-5-4 21752 Marin Dillons Beach Comment
  CAS-BOT-BC303648  Glebionis coronaria John Thomas Howell 1944-9-24 20764 Marin Bolinas Comment
  CAS-BOT-BC303715  Glebionis segetum John Thomas Howell 1943-7-4 18277 Marin Inverness Comment
  CAS-BOT-BC304442  Grindelia hirsutula John Thomas Howell 1930-10-5 5524 Marin 2 miles west of Marin--Sonoma Co. line, at n. end of San Pablo Bay Comment
  CAS-BOT-BC304472  Grindelia hirsutula John Thomas Howell 1944-9-3 20717 Marin Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC306358  Helenium amarum John Thomas Howell 1946-9-8 22987 Marin Near Ignacio Comment
  CAS-BOT-BC306651  Helenium bigelovii John Thomas Howell 1946-5-30 21964 Marin West of Little Carson Falls Comment
  CAS-BOT-BC309606  Hemizonia congesta subsp. lutescens John Thomas Howell 1945-9-16 21470 Marin San Rafael Comment
  CAS-BOT-BC309633  Hemizonia congesta subsp. lutescens John Thomas Howell 1966-4-6 41466 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC30978  Bolboschoenus maritimus John Thomas Howell 1930-10-5 5529 Marin 2 miles W of Marin-Sonoma Co. line. On Black Point road. Comment
  CAS-BOT-BC311168  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1933-7-30 11467 Marin 1.5 miles n. of Olema Comment
  CAS-BOT-BC311327  Hypochaeris glabra John Thomas Howell 1948-6-6 24333 Marin Bolinas Bay Sand Spit Comment
  CAS-BOT-BC312217  Eurybia radulina John Thomas Howell 1946-9-15 23003 Marin Near Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC314436  Grindelia hirsutula John Thomas Howell 1946-6-20 22097 Marin Between Marin Beach and Stinson Beach Comment
  CAS-BOT-BC31495  Carex leptopoda John Thomas Howell; J. W. Stacey 1936-6-7 12638 Marin Ledlum Swamp on road to Pt. Reyes. Comment
  CAS-BOT-BC321792  Layia gaillardioides John Thomas Howell 1933-4-30 11192 Marin N side of Mt. Tamalpais above Phoenix Lake Comment
  CAS-BOT-BC323962  Layia chrysanthemoides John Thomas Howell 1970-5-10 46523 Marin Meadow west of Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC324139  Lessingia hololeuca John Thomas Howell 1945-9-16 21485 Marin North of San Rafael Comment
  CAS-BOT-BC324147  Lessingia hololeuca John Thomas Howell 1927-9-10 3095 Marin Baltimore Park 213 Comment
  CAS-BOT-BC324150  Lessingia hololeuca John Thomas Howell 1945-9-16 21484 Marin North of San Rafael, and east of Santa Venetia Comment
  CAS-BOT-BC324157  Lessingia hololeuca John Thomas Howell 1933-10-8 11698 Marin 1.5 miles east of Forest Knolls Comment
  CAS-BOT-BC32620  Castilleja leschkeana John Thomas Howell 1947-6-4 23220 Marin Pt. Reyes Peninsula. Swale near radio station. Comment
  CAS-BOT-BC327981  Pentachaeta alsinoides John Thomas Howell 1946-5-16 21865 Marin Laurel Dells, Mt. Tamalpais Comment
  CAS-BOT-BC327982  Pentachaeta alsinoides John Thomas Howell 1941-6-29 s.n. Marin Angel Island, SE side Comment
  CAS-BOT-BC330490  Pentachaeta bellidiflora John Thomas Howell 1945-5-25 21933 Marin Woodland, Greenbrae Hills Comment
  CAS-BOT-BC337871  Lapsana communis John Thomas Howell 1941-6-29 16325 Marin Mill Valley Comment
  CAS-BOT-BC339141  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-7-29 21334 Marin Bolinas Comment
  CAS-BOT-BC339142  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1946-5-12 21829 Marin Carson country Comment
  CAS-BOT-BC339143  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-7-29 21333 Marin Bolinas Comment
  CAS-BOT-BC339144  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-9-2 21457 Marin San Rafael Hill Comment
  CAS-BOT-BC339145  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-9-16 21480 Marin Near San Rafael Comment
  CAS-BOT-BC339146  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-7-29 21333 Marin Bolinas Comment
  CAS-BOT-BC339976  Stebbinsoseris decipiens John Thomas Howell 1946-6-20 22098 Marin South of Stinson Beach Comment
  CAS-BOT-BC340180  Jaumea carnosa John Thomas Howell 1930-10-5 5527 Marin 2 miles west of Marin--Sonoma Co. line Comment
  CAS-BOT-BC34029  Carex brevicaulis John Thomas Howell 1942-3-29 16936 Marin Summit of Sausolito Hills. Comment
  CAS-BOT-BC34032  Carex brevicaulis John Thomas Howell 1944-6-4 19558 Marin Inverness Ridge west of Inverness. Comment
  CAS-BOT-BC34038  Carex brevicaulis John Thomas Howell 1969-4-20 45515 Marin Point Reyes National Seashore. Higher slopes of Mount Wittenberg. Comment
  CAS-BOT-BC342211  Logfia filaginoides John Thomas Howell 1942-7-5 17012 Marin Matt Davis Trail, Mt. Tamalpais Comment
  CAS-BOT-BC342212  Logfia filaginoides John Thomas Howell 1940-5-12 s.n. Marin Chianti Country e. of Little Carson Comment
  CAS-BOT-BC343714  Madia elegans John Thomas Howell 1941-7-16 16377 Marin Near Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC343715  Madia elegans John Thomas Howell 1945-6-24 s.n. Marin S. of Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC34389  Carex cusickii John Thomas Howell 1949-5-25 25330 Marin Marsh near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC344388  Madia exigua John Thomas Howell 1927-5-8 2378 Marin East slope of Mt. Tamalpais Comment
  CAS-BOT-BC348502  Micropus californicus var. californicus John Thomas Howell 1943-5-2 s.n. Marin San Anselmo Creek canyon Comment
  CAS-BOT-BC348743  Microseris bigelovii John Thomas Howell 1946-6-2 s.n. Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC348744  Microseris bigelovii John Thomas Howell 1947-4-23 23070 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC348746  Microseris bigelovii John Thomas Howell 1947-4-23 23061 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC348748  Microseris bigelovii John Thomas Howell 1947-4-23 23070 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC348749  Microseris bigelovii John Thomas Howell 1947-4-23 23061 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC348922  Microseris douglasii subsp. douglasii John Thomas Howell 1967-5-24 42255 Marin Dakin Lake, just north of Old St. Hilary's Church, Tiburon Comment
  CAS-BOT-BC348924  Microseris douglasii subsp. douglasii John Thomas Howell 1939-5-14 14671 Marin Lake Lagunitas Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC348941  Microseris douglasii subsp. douglasii John Thomas Howell 1966-4-6 41463 Marin John Thomas Howell Botanical Garden, Tiburon. Along path west of church Comment
  CAS-BOT-BC348942  Microseris douglasii subsp. douglasii John Thomas Howell 1966-4-30 41526 Marin John Thomas Howell Botanical Garden, Tiburon. S. of church Comment
  CAS-BOT-BC348943  Microseris douglasii subsp. douglasii J. T. Howell 1943-5-22 s.n. Marin Lagunitas Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC35011  Carex densa John Thomas Howell 1966-4-30 41523 Marin John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC35041  Carex densa John Thomas Howell 1945-5-6 s.n. Marin Near Dominican College. San Raphael. Comment
  CAS-BOT-BC357049  Pseudognaphalium luteoalbum John Thomas Howell 1988-9-15 s.n. Marin Nicesio [Nicasio] Reservoir Comment
  CAS-BOT-BC357051  Pseudognaphalium luteoalbum John Thomas Howell 1943-5-9 17948 Marin San Rafael Comment
  CAS-BOT-BC361946  Psilocarphus tenellus John Thomas Howell 1929-6-2 4295 Marin Along road near Fort Barry Comment
  CAS-BOT-BC364232  Senecio sylvaticus John Thomas Howell 1942-4-19 s.n. Marin Carson Ridge Comment
  CAS-BOT-BC365046  Solidago velutina subsp. californica John Thomas Howell 1947-6-18 23253 Marin Chileno Valley Comment
  CAS-BOT-BC365857  Soliva sessilis John Thomas Howell 1969-4-27 45559 Marin Nicassio Comment
  CAS-BOT-BC365861  Soliva sessilis John Thomas Howell 1943-6-13 18231 Marin Sausalito hills Comment
  CAS-BOT-BC365863  Soliva sessilis John Thomas Howell 1967-6-8 s.n. Marin Near school on road to lighthouse, Pt. Reyes Peninsula Comment
  CAS-BOT-BC365865  Soliva sessilis John Thomas Howell 1927-3-20 2289 Marin Near Alto 30 Comment
  CAS-BOT-BC365866  Soliva sessilis John Thomas Howell 1967-6-8 42548 Marin Pt. Reyes Comment
  CAS-BOT-BC372297  Layia platyglossa John Thomas Howell 1930-4-20 4726 Marin Pt. Reyes Peninsula, 5 miles from Iverness Comment
  CAS-BOT-BC374449  Sonchus asper John Thomas Howell 1966-4-6 41473 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC375219  Stephanomeria elata John Thomas Howell 1944-9-3 20718 Marin West of Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC375224  Stephanomeria elata John Thomas Howell 1944-9-3 20715 Marin Matt Davis Trail east of Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC375226  Stephanomeria elata John Thomas Howell 1945-10-28 21552 Marin Along road, s. end of Bolinas Ridge, Mt. Tamalpais Comment
  CAS-BOT-BC375309  Stephanomeria exigua subsp. coronaria John Thomas Howell 1945-7-15 21296 Marin Fairfax hills Comment
  CAS-BOT-BC376781  Tanacetum parthenium John Thomas Howell 1944-5-28 s.n. Marin Mill Valley Comment
  CAS-BOT-BC376942  Taraxacum officinale John Thomas Howell 1947-5-30 23207 Marin Ross Comment
  CAS-BOT-BC376943  Taraxacum officinale John Thomas Howell 1945-10-28 s.n. Marin Bolinas Lagoon Comment
  CAS-BOT-BC383717  Xanthium strumarium John Thomas Howell 1943-9-19 19330 Marin Kentfield Comment
  CAS-BOT-BC383720  Xanthium strumarium John Thomas Howell 1946-9-8 22995 Marin Along Redwood Highway just north of San Rafael Comment
  CAS-BOT-BC384427  Silene coronaria John Thomas Howell 1953-7-26 29125 Marin Old railroad grade above Camp Eastwood, Mt. Tamalpais Comment
  CAS-BOT-BC384571  Silene coniflora John Thomas Howell 1946-5-30 21963 Marin Little Carson Canyon Comment
  CAS-BOT-BC384574  Silene coniflora John Thomas Howell 1946-5-30 21963 Marin Little Carson Canyon Comment
  CAS-BOT-BC384584  Silene coniflora John Thomas Howell 1946-7-7 22193 Marin South of Barths Retreat, Mt. Tamalpais Comment
  CAS-BOT-BC385047  Vitis californica John Thomas Howell 1939-9-3 s.n. Marin At Ignacio Comment
  CAS-BOT-BC388200  Cerastium fontanum subsp. vulgare John Thomas Howell 1946-6-16 22067 Marin San Anselmo Comment
  CAS-BOT-BC388309  Cerastium glomeratum John Thomas Howell 1946-4-13 s.n. Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC389959  Spergula arvensis John Thomas Howell 1944-7-23 19851 Marin Santa Venetia Comment
  CAS-BOT-BC390148  Spergularia bocconi John Thomas Howell 1944-6-18 s.n. Marin Phoenix Lake, Mt. Tamalpais Comment
  CAS-BOT-BC390539  Spergularia media John Thomas Howell 1944-4-23 19397 Marin Escalle Comment
  CAS-BOT-BC390540  Spergularia media John Thomas Howell 1944-4-23 19397 Marin Escalle Comment
  CAS-BOT-BC390621  Spergularia rubra John Thomas Howell 1941-6-10 s.n. Marin Black Point Comment
  CAS-BOT-BC390622  Spergularia rubra John Thomas Howell 1940-5-20 s.n. Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC390623  Spergularia rubra John Thomas Howell 1930-10-5 5522 A Marin 2 miles west of Marin--Sonoma Co. line Comment
  CAS-BOT-BC390815  Spergularia marina John Thomas Howell 1939-5-7 14639 Marin Sausalito Comment
  CAS-BOT-BC391007  Spergularia villosa John Thomas Howell 1944-6-25 19643 Marin Santa Venetia 7 Comment
  CAS-BOT-BC397714  Stellaria nitens John Thomas Howell 1946-3-24 21561 Marin Fairfax Hills Comment
  CAS-BOT-BC397715  Stellaria nitens John Thomas Howell 1945-4-29 20790 Marin above Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC400877  Hypericum anagalloides John Thomas Howell 1939-7-2 14817 Marin Elk Valley Comment
  CAS-BOT-BC403202  Eschscholzia californica John Thomas Howell 1954-4-22 29141 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC413680  Persicaria capitata John Thomas Howell 1969-4-27 45553 Marin Gordon True's garden, San Rafael Comment
  CAS-BOT-BC414007  Polygonum aviculare subsp. aviculare John Thomas Howell 1939-7-2 14814 Marin Border of Almonte salt marsh Comment
  CAS-BOT-BC414011  Polygonum aviculare subsp. aviculare John Thomas Howell 1939-6-25 14812 Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC414200  Polygonum aviculare subsp. depressum John Thomas Howell 1939-7-2 14813 Marin Border of Almonte salt marsh Comment
  CAS-BOT-BC419210  Persicaria maculosa John Thomas Howell 1959-11-4 35112 Marin Stinson Beach Comment
  CAS-BOT-BC419342  Persicaria punctata John Thomas Howell 1942-8-30 s.n. Marin Muir Beach Comment
  CAS-BOT-BC419343  Persicaria punctata John Thomas Howell 1924-8-31 643 Marin Near Ross Comment
  CAS-BOT-BC419845  Polygonum patulum John Thomas Howell 1945-7-8 21284 Marin San Antonio Station Comment
  CAS-BOT-BC420979  Polygonum spergulariiforme John Thomas Howell 1946-9-20 23021 Marin East of Dillons Beach Comment
  CAS-BOT-BC420981  Polygonum spergulariiforme John Thomas Howell 1946-9-20 23021 Marin East of Dillons Beach Comment
  CAS-BOT-BC421529  Rumex crassus John Thomas Howell 1945-10-28 s.n. Marin Bolinas Lagoon Comment
  CAS-BOT-BC421964  Rumex acetosella John Thomas Howell 1966-4-18 41483 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC424194  Heuchera micrantha var. hartwegii John Thomas Howell 1944-6-5 s.n. Marin Inverness Ridge Comment
  CAS-BOT-BC433255  Rumex crispus John Thomas Howell 1953-7-2 s.n. Marin Tamalpais Valley Comment
  CAS-BOT-BC433256  Rumex crispus John Thomas Howell 1959-9-10 34609 Marin Bolinas Comment
  CAS-BOT-BC433664  Rumex obtusifolius John Thomas Howell 1943-7-4 18278 Marin Inverness Comment
  CAS-BOT-BC433665  Rumex obtusifolius John Thomas Howell 1941-6-29 16346 Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC433717  Rumex occidentalis John Thomas Howell 1946-6-30 22126 Marin East of Rodeo Lagoon Comment
  CAS-BOT-BC433933  Rumex salicifolius John Thomas Howell 1947-7-6 23323 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC433936  Rumex salicifolius John Thomas Howell 1945-6-24 21233 Marin Brookside, Rock Spring to Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC434103  Rumex transitorius John Thomas Howell 1939-8-27 15304 Marin Ross Comment
  CAS-BOT-BC434109  Rumex transitorius John Thomas Howell 1939-8-27 15305 Marin Ross Comment
  CAS-BOT-BC434110  Rumex transitorius John Thomas Howell 1946-7-7 22204 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC434117  Rumex transitorius John Thomas Howell 1944-5-14 19470 Marin Between Salmon Creek and Chileno Valley Comment
  CAS-BOT-BC435002  Glinus lotoides John Thomas Howell 1956-9-13 31875 Marin Strand of Bon Tempe Reservoir Comment
  CAS-BOT-BC435027  Mollugo verticillata John Thomas Howell 1939-10-15 15371 Marin Alpine Lake Comment
  CAS-BOT-BC435174  Cypselea humifusa J. T. Howell 1939-10-15 s.n. Marin Alpine Lake. Comment
  CAS-BOT-BC435176  Cypselea humifusa John Thomas Howell 1939-8-27 15327 Marin Lake Lagunitas Comment
  CAS-BOT-BC435652  Lithophragma heterophyllum John Thomas Howell 1946-5-12 21820 Marin Chaparral burn, Carson country Comment
  CAS-BOT-BC436394  Calystegia collina subsp. collina John Thomas Howell 1939-5-14 14679 Marin Mt. Tamalpais, near Rifle Camp Comment
  CAS-BOT-BC436395  Calystegia John Thomas Howell 1947-5-21 23191 Marin Tiburon Comment
  CAS-BOT-BC436396  Calystegia John Thomas Howell 1947-5-21 23192 Marin Tiburon Comment
  CAS-BOT-BC436398  Calystegia occidentalis subsp. occidentalis John Thomas Howell 1946-5-16 21897 Marin Angel Island, east side Comment
  CAS-BOT-BC436401  Calystegia occidentalis subsp. occidentalis John Thomas Howell 1946-6-20 22112 Marin 2 miles S of Olema Comment
  CAS-BOT-BC436402  Calystegia occidentalis subsp. occidentalis John Thomas Howell 1947-5-8 23137 Marin Sausalito Comment
  CAS-BOT-BC436403  Calystegia subacaulis John Thomas Howell 1939-5-21 s.n. Marin W. Tiburon Comment
  CAS-BOT-BC436408  Calystegia subacaulis John Thomas Howell 1946-5-16 s.n. Marin W. Angel Island Comment
  CAS-BOT-BC436500  Ligusticum apiifolium John Thomas Howell 1941-6-8 16262 Marin Hills NE of San Rafael Comment
  CAS-BOT-BC439227  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-24 21578 Marin Carson Ridge Comment
  CAS-BOT-BC439232  Claytonia exigua subsp. exigua John Thomas Howell 1946-5-14 s.n. Marin Near Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC439233  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-17 s.n. Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC439235  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-24 21579 Marin Carson Ridge Comment
  CAS-BOT-BC439353  Claytonia gypsophiloides John Thomas Howell 1946-3-24 21563 Marin Fairfax Hills Comment
  CAS-BOT-BC441149  Tellima grandiflora John Thomas Howell 1927-4-23 2348 Marin In a small canon just to the east of Muir Woods 121 Comment
  CAS-BOT-BC443587  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1966-4-18 41495 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC443593  Claytonia perfoliata subsp. perfoliata J. T. Howell 1971-5-20 47605 Marin SW. of Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC443945  Claytonia sibirica John Thomas Howell 1946-4-21 21680 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC444988  Montia fontana John Thomas Howell 1949-4-6 25295 Marin Hamilton Field Comment
  CAS-BOT-BC445387  Alisma plantago-aquatica John Thomas Howell 1944-6-25 19652 Marin Santa Venetia Comment
  CAS-BOT-BC445440  Alisma triviale John Thomas Howell 1980-9-8 53890 Marin Between Lake Lagunitas picnic area and Bon Tempe Lake Comment
  CAS-BOT-BC445631  Sagittaria brevirostra John Thomas Howell 1946-6-13 22030 Marin Chileno Valley Comment
  CAS-BOT-BC445632  Sagittaria brevirostra John Thomas Howell 1947-6-18 23261 Marin Laguna, Chileno Valley Comment
  CAS-BOT-BC45020  Ambrosia psilostachya John Thomas Howell 1926-9-9 2189 Marin San Rafael Comment
  CAS-BOT-BC451167  Aphanes John Thomas Howell 1946-3-24 21583 Marin Burned area, Carson country Comment
  CAS-BOT-BC451837  Triglochin maritima John Thomas Howell 1941-6-8 16272 Marin McNear's Landing Comment
  CAS-BOT-BC451848  Triglochin maritima John Thomas Howell 1939-5-21 s.n. Marin On west side of Tiburon Peninsula Comment
  CAS-BOT-BC451852  Triglochin maritima John Thomas Howell 1945-6-30 21256 Marin Marsh bordering Bolinas Lagoon, Stinson Beach Comment
  CAS-BOT-BC451855  Triglochin maritima John Thomas Howell 1944-7-9 19711 Marin South end of Tomales Bay Comment
  CAS-BOT-BC451856  Triglochin maritima John Thomas Howell 1957-9-15 32950 Marin Marsh bordering Richardson Bay Comment
  CAS-BOT-BC453858  Potamogeton nodosus John Thomas Howell 1946-7-4 22185 Marin East of Aurora School at Sonoma Co. line Comment
  CAS-BOT-BC453859  Potamogeton nodosus John Thomas Howell 1947-6-18 23256 Marin Chileno Valley Comment
  CAS-BOT-BC453860  Potamogeton nodosus John Thomas Howell 1946-5-4 21745 Marin Dillons Beach Comment
  CAS-BOT-BC457933  Fragaria vesca subsp. californica John Thomas Howell 1925-4-5 899 Marin Pipeline Trail Comment
  CAS-BOT-BC460761  Allium amplectens John Thomas Howell 1946-5-12 21816 Marin Carson Country Comment
  CAS-BOT-BC484229  Brodiaea elegans subsp. elegans John Thomas Howell 1966-6-9 s.n. Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC484617  Brodiaea terrestris subsp. terrestris John Thomas Howell 1941-6-10 16296 Marin 9 mi. w. of Novato Comment
  CAS-BOT-BC497690  Chlorogalum pomeridianum John Thomas Howell 1966-7-20 41985 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC499178  Kopsiopsis hookeri John Thomas Howell 1958-5-18 s.n. Marin At West Point, Mt. Tamalpais Comment
  CAS-BOT-BC499675  Orobanche californica subsp. californica John Thomas Howell 1939-7-2 s.n. Marin Big Lagoon (Muir Beach) Comment
  CAS-BOT-BC499916  Orobanche fasciculata John Thomas Howell 1939-5-21 s.n. Marin Tiburon Peninsula (south end) Comment
  CAS-BOT-BC499918  Orobanche fasciculata John Thomas Howell 1927-5-8 2377 Marin East slope of Mt. Tamalpais Comment
  CAS-BOT-BC500277  Orobanche uniflora subsp. occidentalis John Thomas Howell 1943-4-11 17909 Marin San Rafael HIlls: Bkack Canyon Comment
  CAS-BOT-BC511478  Maianthemum racemosum subsp. amplexicaule John Thomas Howell 1927-9-9 3090 Marin Redwood, Mill Valley 45 Comment
  CAS-BOT-BC515556  Muilla maritima John Thomas Howell 1946-5-5 21756 Marin Point Reyes Peninsula Comment
  CAS-BOT-BC517526  Prosartes smithii John Thomas Howell 1941-5-18 16185 Marin Steep ravine, Mount Tamalpais Comment
  CAS-BOT-BC527088  Xerophyllum tenax John Thomas Howell 1947-7-9 23329 Marin Above Lagunitas Lake, Mt. Tamalpais Comment
  CAS-BOT-BC527090  Xerophyllum tenax John Thomas Howell 1947-5-25 23201 Marin Kent Trail near Willow Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC527405  Triteleia peduncularis John Thomas Howell 1937-7-4 13090 Marin Tiburon Comment
  CAS-BOT-BC530477  Zigadenus fontanus John Thomas Howell 1940-5-26 15532 Marin Little Carson Falls Comment
  CAS-BOT-BC531914  Zigadenus fremontii John Thomas Howell 1945-7-8 s. n. Marin Upper part of salt marsh near San Antonio station Comment
  CAS-BOT-BC531918  Zigadenus fremontii John Thomas Howell 1925-4-5 933 Marin Pipevine Trail Comment
  CAS-BOT-BC534878  Lemna valdiviana John Thomas Howell 1939-7-16 s.n. Marin Azalea Flat, Matt Davis Trail, Mt. Tamalpais Comment
  CAS-BOT-BC534921  Lemna turionifera John Thomas Howell 1944-10-10 20714 Marin Marshes north of Olema Comment
  CAS-BOT-BC536642  Horkelia californica John Thomas Howell 1945-7-29 21346 Marin Bolinas Comment
  CAS-BOT-BC537076  Lemna minor John Thomas Howell 1945-10-28 21551 Marin Stinson Beach Comment
  CAS-BOT-BC537078  Lemna minor John Thomas Howell 1946-8-23 22900 Marin Olema Marshes Comment
  CAS-BOT-BC537079  Lemna minor John Thomas Howell 1946-6-9 22004 Marin Abbotts Lagoon Comment
  CAS-BOT-BC55364  Hirschfeldia incana John Thomas Howell 1939-7-2 14846 Marin Mill Valley station. Comment
  CAS-BOT-BC55365  Hirschfeldia incana John Thomas Howell 1939-5-14 14687 Marin Mill Valley station. Comment
  CAS-BOT-BC57904  Equisetum arvense John Thomas Howell 1949-4-27 25310 Marin S. of Tomales. Comment
  CAS-BOT-BC57907  Equisetum arvense John Thomas Howell 1944-9-24 20759 Marin N. end Bolinas Lagoon. Comment
  CAS-BOT-BC57910  Equisetum arvense John Thomas Howell 1957-7-22 32818 Marin Pt. reyes Peninsula, near Drake's Bay. Comment
  CAS-BOT-BC57913  Equisetum arvense John Thomas Howell 1940-5-12 15415 Marin Lagunitas Creek. Comment
  CAS-BOT-BC60261  Lunaria annua John Thomas Howell 1926-2-21 1638 Marin Inverness. Comment
  CAS-BOT-BC60416  Nasturtium officinale John Thomas Howell 1946-6-30 22130 Marin Marsh east of Rodeo Lagoon. Comment
  CAS-BOT-BC61492  Sedum album John Thomas Howell 1959-9-10 s.n. Marin Garden of Mrs. James Jenkins, Bolinas. Comment
  CAS-BOT-BC63780  Sedum radiatum subsp. radiatum John Thomas Howell 1946-7-7 22220 Marin Arturo trail at Potrero Meadow, Mt. Tamalpais. Comment
  CAS-BOT-BC65795  Aspidotis californica John Thomas Howell 1943-1-1 17875 Marin Mt. Tamalpais Comment
  CAS-BOT-BC66349  Cheilanthes covillei John Thomas Howell 1970-5-10 46522 Marin in crevice of Fern Rock, on Old Stage Road above Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC67585  Pellaea mucronata John Thomas Howell 1926-12-8 2259 Marin Near Phoenix Lake Comment
  CAS-BOT-BC68120  Athyrium filix-femina subsp. cyclosorum John Thomas Howell 1944-7-9 19693 Marin Sunny open bog, Inverness Ridge Comment
  CAS-BOT-BC68168  Cheilanthes intertexta J. T. Howell 1970-2-8 s.n. Marin Pohli Rock at Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC68716  Athyrium filix-femina var. californicum John Thomas Howell 1966-4-18 41507 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC69877  Isoetes nuttallii John Thomas Howell 1946-3-24 21588 Marin S. of Little Carson. Comment
  CAS-BOT-BC69878  Isoetes nuttallii John Thomas Howell 1947-5-25 23203 Marin Mt. Tamalpais. Comment
  CAS-BOT-BC70905  Dryopteris arguta John Thomas Howell 1939-5-14 s.n. Marin near Ross, Mt. Tamalpais Comment
  CAS-BOT-BC72190  Polystichum dudleyi John Thomas Howell 1948-5-22 24308 Marin Camp Tucker, Mt. Tamalpais Comment
  CAS-BOT-BC72582  Pteridium aquilinum John Thomas Howell 1966-4-18 41511 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC74378  Rorippa curvipes John Thomas Howell 1946-9-8 s.n. Marin Mount Tamalpais. Strand of Lake Lagunitas. Comment
  CAS-BOT-BC74543  Rorippa curvisiliqua John Thomas Howell 1946-6-16 22090 Marin Point Reyes Station. Comment
  CAS-BOT-BC74834  Rorippa palustris var. palustris John Thomas Howell 1947-6-18 23264 Marin Laguna, Chileno Valley. Comment
  CAS-BOT-BC75033  Sisymbrium altissimum John Thomas Howell 1945-5-9 20846 Marin Ignacio. Comment
  CAS-BOT-BC75320  Sisymbrium officinale John Thomas Howell 1967-5-5 42164 Marin Johnt Thomas Howell Botanical Garden, Tiburon. Parking area. Comment
  CAS-BOT-BC76853  Polypodium calirhiza John Thomas Howell 1947-3-23 23046 Marin Mt. Tamalpais - Cataract Gulch Comment
  CAS-BOT-BC88482  Thysanocarpus curvipes John Thomas Howell 1944-4-13 19376 Marin Big Rock Ridge west of Hamilton Field. Comment
  CAS-BOT-BC88485  Thysanocarpus curvipes John Thomas Howell 1946-5-19 12913 Marin Meadows Club, Fairfax Hills. Comment
  CAS-BOT-BC88647  Isatis tinctoria John Thomas Howell 1974-5-2 50328 Marin Stinson Beach. In yard of Barbara Menzies. Comment
  CAS-BOT-BC89086  Lepidium didymum John Thomas Howell 1940-5-20 s.n. Marin Point Reyes Lighthouse. Comment
  CAS-BOT-BC89171  Lepidium draba John Thomas Howell 1945-9-16 21487 Marin Along road north of San Rafael. Comment
  CAS-BOT-BC89528  Lepidium lasiocarpum John Thomas Howell 1949-5-25 25339 Marin Point Reyes Peninsula. Comment
  CAS-BOT-BC91778  Platystemon californicus John Thomas Howell 1930-4-20 4734 Marin Overlooking the ocean, Point Reyes. Comment
  CAS-BOT-BC99133  Symphyotrichum chilense John Thomas Howell 1933-10-8 11700 Marin 1 mile east of Forest Knolls Comment
  CAS-BOT-BC99136  Symphyotrichum chilense John Thomas Howell 1945-9-2 21451 Marin San Rafael Comment
  CAS-BOT-BC99139  Symphyotrichum chilense John Thomas Howell 1947-5-18 23179 Marin Springy slope on serpentine, south end of Carson Ridge Comment
  CDA22859  Polygonum ramosissimum J. T. Howell 1974-10-24 51013 Marin Salt marsh bordering San Francisco Bay east of Corte Madera. 0 Comment
  CDA3817  Lepidium pinnatifidum J. T. Howell 1976-6-2 51804 Marin Corte Madera. 0 Comment
  CDA4361  Erodium botrys J. T. Howell 1947-4-13 23058 Marin Tiburon Peninsula. 0 Comment
  CDA4653  Geranium potentilloides J. T. Howell 1969-4-2 45514 Marin Point Reyes National Seashore, Meadow Trail to Mt. Wittenberg. 0 Comment
  CDA5388  Torilis arvensis subsp. purpurea J. T. Howell 1976-6-2 51808 Marin Larkspur. 0 Comment
  CDA62  Cakile maritima J. T. Howell 1943-10-3 19333 Marin Muir Beach. Comment
  CDA7530  Leontodon taraxacoides subsp. taraxacoides J. T. Howell 1945-7-29 21333 Marin Bolinas. 0 Comment
  CDA8132  Layia chrysanthemoides J. T. Howell 1970-5-1 46523 Marin West of Rock Spring, Mt. Tamalpais. 0 Comment
  JEPS58951  Castilleja affinis subsp. affinis John Thomas Howell 1942-4-19 16947 Marin Carson Ridge Comment
  LA208414  Galium californicum subsp. californicum John Thomas Howell; 1930-7-20 5385 Marin Mt. Tamalpais on SE side. Comment
  LA25808  Camissoniopsis cheiranthifolia John Thomas Howell; 1946-5-4 1 Marin Dillions Beach Comment
  LA39963  Cuscuta subinclusa John Thomas Howell; 1939-9-3 15355 Marin at mouth of San Antonio Creek Comment
  POM179719  Jaumea carnosa J. T. Howell 1930-10-5 5527 Marin 2 miles W of Marin Sonoma County line. Comment
  POM180640  Navarretia squarrosa J. T. Howell 1930-7-20 5379 Marin Hills just north of Pheonix Lake. Comment
  POM193916  Orthocarpus erianthus var. roseus J. T. Howell 1930-4-20 4736 Marin Pt. Reyes. Comment
  POM193918  Platystemon californicus var. californicus J. T. Howell 1930-4-20 4734 Marin Pt. Reyes. Comment
  POM193969  Lasthenia minor J. T. Howell 1930-4-20 4733 Marin Pt. Reyes. Comment
  POM196463  Lathyrus vestitus subsp. vestitus J. T. Howell 1925-1-18 730 Marin Near San Rafael. Comment
  POM203151  Lessingia hololeuca John T. Howell 1933-10-8 11698 Marin 1.5 miles east of Forest Knolls Comment
  POM203152  Hydrocotyle verticillata J. T. Howell 1933-10-8 11712 Marin Pt. Reyes Peninsula Comment
  POM203164  Eryngium armatum J. T. Howell 1933-10-8 11709 Marin Pt. Reyes Peninsula Comment
  POM203914  Vulpia microstachys var. pauciflora J. T. Howell 1933-4-30 11194 Marin North side of Mt. Tamalpais. Comment
  POM203969  Cicuta bolanderi J. T. Howell 1933-7-30 11470 Marin Head of Tomales Bay Comment
  POM203971  Eryngium armatum J. T. Howell 1933-7-30 11466 Marin 1.5 miles north of Olema Comment
  POM273074  Triglochin maritima J. T. Howell 1945-6-30 21256 Marin Salt marsh bordering Bolinas Lagoon, Stinson Beach Comment
  POM273078  Papaver argemone J. T. Howell 1946-5-30 21962 Marin Little Carson Canyon. Comment
Read comments
Mar 26 2009
  POM273088  Oxalis laxa J. T. Howell 1946-6-20 22099 Marin Stinson Beach. Comment
  POM273112  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin between Hamilton Field and Ignacio, Marin County Comment
  POM303725  Amaranthus deflexus J. T. Howell 1944-7-23 19852 Marin Along sidewalks, San Rafael. 15 Comment
  POM304547  Erigeron petrophilus J. T. Howell 1942-7-12 17034 Marin Northside Trail, Mt. Tamalpais Comment
  RSA0000972  Blennosperma nanum var. robustum J. T. Howell 1947-5-14 23153 Marin Point Reyes Peninsula above McClure Beach. Comment
  RSA0014199  Carex mendocinensis J. T. Howell 1945-4-29 20789 Marin Camp Handy. Comment
  RSA0014200  Carex mendocinensis J. T. Howell 1938-6-5 13895 Marin Azalea Flat, Mt. Tamalpais. Comment
  RSA0021756  Ribes menziesii var. leptosmum J. T. Howell 1943-6-13 18232 Marin Sausalito. Comment
  RSA0021775  Ribes menziesii J. T. Howell 1940-5-20 15487 Marin Inverness. Comment
  RSA0022773  Monardella villosa subsp. subserrata J. T. Howell 1930-7-20 5374 Marin Near Phoenix Lake. Comment
  RSA0059442  Orobanche fasciculata John Thomas Howell 1927-5-8 2377 Marin East slope of Mt. Tamalpais. Comment
  RSA0070568  Cirsium andrewsii J. T. Howell 1933-7-30 11478 Marin Near summit of road from Inverness to Point Reyes. Comment
  RSA0070869  Cirsium remotifolium J. T. Howell 1940-5-26 15520 Marin San Anselmo Canyon. Comment
  RSA0097836  Spergularia macrotheca J. T. Howell 1944-5-28 19506 Marin Manzanita. Comment
  RSA0097867  Spergularia bocconi J. T. Howell 1946-5-16 21880 Marin Angel Island, S side. Comment
  RSA0098124  Spergularia rubra J. T. Howell 1933-4-1 10920 Marin 4.5 miles N of San Rafael. Comment
  RSA114320  Ludwigia hexapetala J. T. Howell 1945-5-20 s.n. Marin Tiburon. Comment
  RSA114321  Clarkia purpurea subsp. purpurea J. T. Howell 1947-5-21 23187 Marin Tiburon. Comment
  RSA114322  Clarkia davyi J. T. Howell 1946-5-5 s.n. Marin Pt. Reyes Radio Station Comment
  RSA121026  Holocarpha virgata subsp. virgata J. T. Howell 1956-9-13 31876 Marin Lagunitas Meadows near Lake Lagunitas. Comment
  RSA121031  Glinus lotoides J. T. Howell 1956-9-13 31875 Marin Strand of Bon Tempe Reservoir. Comment
  RSA126182  Rorippa curvipes var. truncata J. T. Howell 1946-9-8 s.n. Marin Strand of Lake Lagunitas, Tamalpais Mts Comment
Read comments
Feb 17 2009
  RSA126187  Cypselea humifusa J. T. Howell 1939-8-27 15327 Marin Lake Lagunitas Comment
  RSA126191  Chenopodium macrospermum var. farinosum J. T. Howell 1947-10-26 24194 Marin Rodeo Lagoon. Comment
  RSA126196  Atriplex californica J. T. Howell 1945-6-30 s.n. Marin Stinson Beach. Comment
  RSA126209  Vicia sativa J. T. Howell 1946-5-26 21948 Marin Inverness. Comment
  RSA126210  Vicia lutea J. T. Howell 1944-5-14 19466 Marin Salmon Creek Canyon Comment
  RSA126460  Elodea canadensis J. T. Howell 1943-9-5 19322 -A Marin Just south of Mill Valley Comment
  RSA126468  Bromus maritimus J. T. Howell 1946-6-30 22147 Marin Rodeo Lagoon Comment
  RSA126479  Agrostis exarata J. T. Howell 1944-9-10 20737 Marin Shell Beach, north of Inverners Comment
  RSA126549  Madia anomala J. T. Howell 1941-6-10 16284 Marin Black Point Comment
  RSA127052  Sparganium erectum subsp. stoloniferum J. T. Howell 1946-6-13 22028 Marin The laguna, Chileno Valley. Comment
  RSA127056  Potamogeton foliosus J. T. Howell 1946-8-23 22893 Marin Pierce Point Road, Point Reyes Peninsula. Comment
  RSA127057  Zannichellia palustris J. T. Howell 1947-4-30 23113 Marin Near Dillons Beach. Comment
  RSA127058  Ruppia maritima J. T. Howell 1943-10-3 19334 Marin Muir Beach. Comment
  RSA127064  Juncus covillei J. T. Howell 1946-7-7 s.n. Marin Potrero Meadow, Mt. Tamalpais. Comment
  RSA127067  Juncus kelloggii J. T. Howell 1949-5-25 25337 Marin Point Reyes Peninsula. Comment
  RSA127093  Polygonum fowleri J. T. Howell 1949-5-22 25326 Marin Salt marsh at head of Drakes Esters. Comment
  RSA127213  Lithophragma heterophyllum John T. Howell 1946-5-12 21820 Marin Carson Country Comment
  RSA127256  Athyrium filix-femina subsp. cyclosorum J. T. Howell 1950-10-11 27467 Marin Bear Valley Comment
  RSA127258  Eleocharis palustris J. T. Howell 1944-6-4 19568 Marin Mt. Vision west of Inverness Comment
  RSA127363  Amaranthus deflexus J. T. Howell 1939-10-1 s.n. Marin Ross Comment
  RSA127377  Schoenoplectus californicus J. T. Howell 1944-7-9 19721 Marin South of Tomales Bay Comment
  RSA127378  Schoenoplectus maritimus J. T. Howell 1945-5-20 20874 Marin Tiburon. Comment
  RSA128319  Trifolium albopurpureum J. T. Howell 1945-5-6 20807 Marin San Rafael Hill Comment
  RSA128320  Thermopsis californica var. californica J. T. Howell s.n. Marin E. Tiburon Comment
  RSA128473  Trifolium microcephalum J. T. Howell 1943-5-9 s.n. Marin San Raphael Hills Comment
  RSA128532  Cirsium occidentale var. occidentale J. T. Howell 1941-5-18 16188 Marin Stinson Beach Comment
  RSA128924  Stephanomeria virgata J. T. Howell 1945-9-2 21456 Marin San Rafael Hills Comment
  RSA128926  Trifolium barbigerum J. T. Howell 1940-5-20 15504 Marin Point Reyes Comment
  RSA128937  Trifolium willdenovii J. T. Howell 1947-5-4 23130 Marin San Rafael Hills. Comment
  RSA128943  Centaurea calcitrapa J. T. Howell 1939-9-3 15342 Marin Near Novato Comment
  RSA128945  Erigeron reductus var. angustatus J. T. Howell 1946-7-7 22197 Marin South of Barths Retreat, Mt. Tamalpais. Comment
  RSA128949  Leontodon taraxacoides subsp. taraxacoides J. T. Howell 1945-9-16 21480 Marin San Rafael. Comment
  RSA128950  Heterotheca sessiliflora subsp. echioides J. T. Howell 1939-6-25 14802 Marin Summit Avenue, Mill Valley Comment
  RSA128951  Agoseris heterophylla J. T. Howell 1947-5-4 23125 Marin San Rafael Hills. Comment
  RSA201404  Cuscuta campestris J. T. Howell 1946-9-20 23013 Marin Chileno Valley Comment
  RSA201419  Lathyrus tingitanus J. T. Howell 1959-5-21 34595 A Marin Inverness Comment
  RSA201488A  Lomatium vaginatum J. T. Howell 1947-5-8 23145 Marin Sausalito Comment
  RSA216164  Lilium pardalinum J. T. Howell 1966-7-20 41994 Marin Area adjacent to the John Thomas Howell Botanical Garden, Tiburon. Comment
  RSA216167  Carex densa J. T. Howell 1966-4-30 41523 Marin John Thomas Howell Botanical Garden, Tiburon. Comment
  RSA220018  Orthocarpus faucibarbatus J. T. Howell 1969-5-5 45572 Marin Ring Hill, Tiburon Peninsula. Comment
  RSA220025  Atriplex rosea J. T. Howell 1969-6-30 45864 Marin Waste ground bordering estuary of San Rafael Creek at Irwin Street bridge, San Rafael. Comment
  RSA22025  Cuscuta ceanothi J. T. Howell 1939-9-3 15355 Marin San Antonio Creek Comment
  RSA22084  Hemizonia corymbosa subsp. corymbosa J. T. Howell 1939-9-3 15336 Marin Near Black Point. Comment
  RSA244741  Cuscuta occidentalis J. T. Howell 1972-6-18 48868 Marin near Ring Hill, Tiburon Peninsula 168 Comment
  RSA299144  Clarkia davyi J. T. Howell, Catherine Best, Wilma Follette, Gordon H. True 1980-6-19 53720 Marin Near Abbott s Lagoon, Point Reyes Peninsula. Comment
  RSA31293  Boisduvalia densiflora var. densiflora J. T. Howell 1946-6-30 22134 Marin Valley east of Rodeo Lagoon. Comment
  RSA31375  Epilobium brachycarpum J. T. Howell 1945-9-16 21477 Marin San Rafael. Comment
  RSA31376  Epilobium brachycarpum J. T. Howell 1945-9-16 21478 Marin San Rafael. Comment
  RSA31381  Epilobium foliosum J. T. Howell 1944-5-21 19486 Marin Canyon below Phoenix Lake, Mt. Tamalpais Comment
  RSA31384  Epilobium ciliatum subsp. watsonii J. T. Howell 1945-8-5 21368 Marin Stinson Beach Comment
  RSA31411  Oenothera elata subsp. hookeri J. T. Howell 1945-6-30 21254 Marin Stinson Beach. Comment
  RSA31417  Epilobium ciliatum subsp. watsonii J. T. Howell 1946-5-4 21738 Marin Dillon Beach. Comment
  RSA31418  Epilobium ciliatum subsp. watsonii J. T. Howell 1946-5-4 31737 Marin Dillon Beach. Comment
  RSA31419  Epilobium hallianum J. T. Howell 1946-6-2 21966 Marin Potrero Meadow, Mt. Tamalpais. Comment
  RSA31421  Epilobium brachycarpum J. T. Howell 1946-9-20 23018 Marin Chileno Valley Comment
  RSA32116  Madia anomala J. T. Howell 1946-5-25 21932 Marin Greenbrae HillsGreenhorn Mountain Range: North Rim of Kern Canyon. Comment
  RSA32120  Triglochin maritima J. T. Howell 1944-4-23 19393 Marin Escalle Salt marsh. Comment
  RSA32267  Vicia hassei J. T. Howell 1946-4-18 21658 Marin Novato. Comment
  RSA32497  Trifolium ciliolatum J. T. Howell 1946-4-18 21663 Marin Novato. Comment
  RSA40152  Amaranthus deflexus J. T. Howell 1944-7-23 19852 Marin Along sidewalks, San Rafael. 15 Comment
  RSA40162  Cakile maritima var. maritima J. T. Howell 1943-10-3 19333 Marin Muir Beach. Comment
  RSA44351  Lathyrus littoralis J. T. Howell 1947-6-4 23221 Marin Dunes beyond radio station, Pt. Reyes Peninsula. Comment
  RSA44357  Lathyrus tingitanus J. T. Howell 1944-6-25 44357 Marin San Rafael Comment
  RSA44361  Lathyrus vestitus subsp. bolanderi J. T. Howell 1940-5-20 15516 Marin Point Reyes Comment
  RSA44495  Selaginella wallacei John Thomas Howell 1947-3-2 s.n. Marin Above Blythedale canyon, east side of Mt. Tamalpais Comment
  RSA478405  Atriplex semibaccata J. T. Howell 1943-11-21 19338 Marin Salt marshes west of San Quentin near Greenbrae. Comment
  RSA51276  Erodium botrys J. T. Howell 1947-4-13 23058 Marin Tiburon Peninsula. Comment
  RSA51937  Carex amplifolia J. T. Howell 1946-6-30 22127 Marin East of Rodeo Lagoon. Comment
  RSA51939  Carex gynodynama J. T. Howell 1947-5-25 23202 Marin Willow Meadow, Mt. Tamalpais. Comment
  RSA51944  Carex subbracteata J. T. Howell 1945-5-27 20883 Marin Northeast of Mountain Theater, Mt. Tamalpais. Comment
  RSA52003  Carex bolanderi J. T. Howell 1944-6-4 19540 Marin Inverness Ridge west of Inverness. Comment
  RSA52012  Carex globosa J. T. Howell 1945-6-3 20932 Marin Shell Beach. Comment
  RSA52166  Carex echinata subsp. phyllomanica J. T. Howell 1949-5-25 25331 Marin Marsh near radio station, Point Reyes Peninsula. Comment
  RSA52310  Carex simulata J. T. Howell 1946-6-20 22102 Marin East side of Bolinas Lagoon. Comment
  RSA52331  Carex exsiccata J. T. Howell 1946-6-20 22104 Marin Four miles north of Bolinas. Comment
  RSA67157  Galium californicum subsp. californicum J. T. Howell 1930-7-20 5381 Marin Just S of Phoenix Lake. Comment
  RSA69810  Centaurium muehlenbergii J. T. Howell 1938-7-3 13944 Marin At head of Lucas Valley. Comment
  RSA78566  Carex harfordii J. T. Howell 1944-6-4 19575 Marin Inverness Ridge west of Inverness. Comment
  RSA90937  Trifolium fucatum var. fucatum J. T. Howell 1946-4-18 21647 Marin Ignacio. Comment
  RSA91547  Trifolium amoenum J. T. Howell 1933-4-30 11200 Marin Phoenix Lake. Comment
  RSA91611  Carex cusickii J. T. Howell 1938-6-5 13902 Marin Rock Springs, Mt. Tamalpais. Comment
  RSA91663  Carex obnupta J. T. Howell, J. W. Stacey 1936-6-7 s.n. Marin On road to Point Reyes. Comment
  RSA93384  Arrhenatherum elatius J. T. Howell 1947-6-4 23224 Marin San Geronimo. Comment
  RSA95263  Sidalcea hickmanii subsp. viridis J. T. Howell 1942-6-21 16997 Marin Carson Ridge Comment
Read comments
Jan 8 2009
  RSA98572  Iris douglasiana J. T. Howell 1952-6-3 28322 Marin Near the radio station, Point Reyes Peninsula Comment
  RSA98706  Salix hookeriana J. T. Howell 1952-6-3 28324 Marin Near Ledum Swamp. Pt. Reyes Peninsula. Comment
  RSA99633  Setaria pumila J. T. Howell 1954-10-21 30112 Marin Roadside hollow near Bootjack, Mt. Tamalpais Comment
  SBBG41057  Centaurium tenuiflorum J. T. Howell 1945-9-16 Marin near San Rafael Comment
  SD72057  Carex cusickii John Thomas Howell 1958-6-28 33641 Marin Mount Tamalpais; wet part of Willow Meadow. Comment
  SEINET10460711  Heterocodon rariflorum Howell Howell 16330 Marin MT. TAMAULPAIS, ROCK SPRING Comment
  SEINET10511142  Alopecurus howellii John Thomas Howell 1946-5-4 Howell 21702 Marin East of Auora School, at Sonoma County line, Comment
  SEINET10517821  Brachypodium distachyon John Thomas Howell 1948-5-31 Howell 24327 Marin Common Devil's Gulch near Camp Taylor. Comment
  SEINET10520183  Bromus carinatus John Thomas Howell 1945-6-24 Howell s.n. Marin Mt. Tamalpais, Marin County. Comment
  SEINET10560627  Elymus virescens John Thomas Howell 1945-6-24 Howell 21242 Marin Willon Meadow, Mt. Tamaplais, Marin County. Comment
  SEINET10563839  Panicum huachucae var. fasciculatum John Thomas Howell 1943-7-3 Howell 18247 Marin Near Bootjack, Mount Tamalpais. Comment
  SEINET10591423  Holcus lanatus John Thomas Howell 1945-7-29 Howell 21355 Marin Bolinas. Viviparous form, normal plants abundant, only two viviparous plants seen. Comment
  SEINET10599404  Melica geyeri var. aristulata John Thomas Howell 1947-5-18 Howell 23185 Marin Shade of deep woods, Lagunitas Measdows, Comment
  SEINET10599674  Melica torreyana John Thomas Howell 1939-5-14 Howell 14678 Marin Serpentine area near Collier Spring, Mt. Tamalpais. Comment
  SEINET10604454  Vulpia microstachys var. pauciflora John Thomas Howell 1943-5-15 Howell 18092 Marin Tiburon Peninsula. Comment
  SEINET10604659  Vulpia octoflora var. glauca John Thomas Howell 1946-5-12 Howell s.n. Marin Chaparral burn, Carson Ridge Comment
  SEINET10605489  Glyceria leptostachya John Thomas Howell 1946-6-16 Howell 22077 Marin Olema Marshes. Comment
  SEINET10605490  Glyceria leptostachya John Thomas Howell 1946-6-16 Howell 22077 Marin Olerna Marshes. Comment
  SEINET10660063  Phalaris aquatica John Thomas Howell 1945-8-12 Howell 21381 Marin Subsaline flat above salt marsh, Tiburon Comment
  SEINET10775829  Astragalus pycnostachyus John Thomas Howell 1945-6-30 Howell 21253 Marin Stinson Beach. Comment
  SEINET10789844  Agrostis blasdalei John Thomas Howell 1947-5-14 Howell 23150 Marin Restricted to gravelly slope on outcrop of diatomaceous shale of Monterey Series, Drakes Estero, WNW of Mt Vision,/ Comment
  SEINET10789992  Agrostis exarata John Thomas Howell 1945-7-1 Howell 21264 Marin Tiburon. Comment
  SEINET10793102  Torreyochloa pallida var. pauciflora John Thomas Howell 1946-6-13 Howell 22027 Marin Chileno Valley Comment
  SEINET10828049  Hordeum californicum John Thomas Howell 1947-4-23 Howell 23068 Marin Drakes Estero west of Mt. Vision. Comment
  SEINET10832001  Festuca rubra John Thomas Howell 1941-5-25 Howell 16216 Marin Rifle Camp, Mt. Tamalpais, Comment
  SEINET10892983  Hordeum murinum subsp. glaucum John Thomas Howell 1949-4-24 Howell 25307 Marin Dooryard weed, Fort McDowell, Angel Island. Comment
  SEINET10893344  Vulpia microstachys var. pauciflora John Thomas Howell 1943-5-22 Howell 18140 Marin Fairfax hills. Comment
  SEINET10900463  Deschampsia danthonioides John Thomas Howell 1943-5-15 Howell 18100 Marin Tiburon Peninsula. Comment
  SEINET10920988  Poa kelloggii John Thomas Howell 1950-5-18 Howell 26311 Marin Lagunitas Creek near Camp Taylor, Marin County. Comment
  SEINET10925826  Leymus vancouverensis John Thomas Howell 1945-6-30 Howell 21251 Marin Stinson Beach. Comment
  SEINET10959759  Scribneria bolanderi John Thomas Howell 1945-5-27 Howell 20879 Marin Serpentine area above Bootjack, Mt. Tamalpais, . Comment
  SEINET11071685 Image available Lotus pedunculatus John Thomas Howell 1944-9-30 19856 Marin between Mill Valley and head of salt marshes, el. ca. 10 feet, Marin Co. Comment
  SEINET12118789  Lomatium dasycarpum J. T. Howell 1930-1 4718 Marin 1 i E of Lagunitas Comment
  SEINET12403814  Carex globosa J. T. Howell 1946-5-14 21843 Marin Portrero Meadow, Mt. Tamalpais. Comment
  SEINET13948214 Image available Trichostema lanceolatum John Thomas Howell 1945-1 21459 Marin San Rafael Hills Comment
  SEINET13948730 Image available Monardella villosa John Thomas Howell 1943-1 s.n. Marin Sausalito Comment
  SEINET199895 Image available Trisetum canescens John Thomas Howell 1949-6-25 Marin Camp Taylor. Comment
  SEINET199905  Agrostis diegoensis John Thomas Howell 1943-7-11 18286 Marin Near Bootjack Mt. Tamalpais. Comment
  SEINET3347214 Image available Oxalis ebracteata John Thomas Howell 1946-6-20 Marin Stinson Beach Comment
  SEINET4183201  Chorizanthe valida J. T. Howell, C. Best, W. Follette, G. True 1980-1 Marin Comment
  SEINET5507014 Image available Cirsium andrewsii John Thomas Howell 1933-7-30 11478 Marin near summit of road from Inverness to Pt. Reyes Comment
  SEINET7559870 Image available Carex globosa John Thomas Howell 1942-4-19 16946 Marin Carson Ridge, Mt Tamalpais. Comment
  SEINET7559872 Image available Carex globosa John Thomas Howell 1952-5-30 28318 Marin Potrero Meadow, Mt. Tamalpais. Comment
  SEINET7559896 Image available Carex globosa John Thomas Howell 1933-4-30 11193 Marin North side of Mt. Tamalpais. Comment
  SEINET7614631 Image available Anthoxanthum occidentale John Thomas Howell 1945-1 20781 Marin Fish Grade, Mt. Tamalpais Comment
  SEINET7847007 Image available Carex globosa J. T. Howell 1944-4-2 19368 A Marin SE of Laurel Del. Mount Tamalpais Comment
  SEINET883236 Image available Agrostis aristiglumis J. T. Howell 1947-1 23149 Marin Drakes Estero WNW of Mt. Vision. Comment
  SEINET956245  Lathyrus tingitanus John Thomas Howell 1945-1 21260 Marin Tiburon. Comment
  UC1008735  Navarretia heterodoxa John Thomas Howell 1942-9-13 17866 Marin above San Anselmo Canyon (trail to Carson Ridge) Comment
  UC1106078  Bolboschoenus maritimus John Thomas Howell 1945-8-19 21438 Marin At head of Drakes Bay. Comment
  UC1106210  Alopecurus aequalis var. sonomensis John Thomas Howell 21358 Marin Between Bolinas radio station and Rio Honda Comment
  UC1176731  Sedum radiatum John Thomas Howell 1946-7-7 22220 Marin Arturo Trail at Potrero Meadow (Mt. Tamalpais); , Potrero Meadow Comment
  UC1176745  Delphinium patens John Thomas Howell 1940-5-12 15436 Marin San Anselmo Creek Canyon Comment
  UC1176766  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-24 21578 Marin Carson Ridge Comment
  UC1176805  Atriplex triangularis John Thomas Howell 1945-8-19 21415 Marin Inverness Inverness (Salt marsh) Comment
  UC1176914  Polygonum hydropiperoides John Thomas Howell 1945-10-14 Marin Olema Meadows Comment
  UC1177265  Erigeron foliosus var. franciscensis John Thomas Howell 1944-6-25 19663 Marin near Chinese Camp Comment
  UC1177508  Polystichum John Thomas Howell 1948-5-22 24308 Marin Camp Tucker Mt. Tamalpais Comment
  UC672106  Fritillaria affinis John Thomas Howell 1930-3-9 4551 Marin Point Reyes 152 Comment
  UC905016  Carex subbracteata John Thomas Howell 1949-5-25 Marin Pt. Reyes Peninsula Comment
  UCD103280  Geranium bicknellii John Thomas Howell 1946-5-30 21961 Marin Little Carson Canyon. Comment
  UCD107083  Ludwigia hexapetala John Thomas Howell 1945-7-1 21259 Marin Tiburon. Comment
  UCD108781  Vicia benghalensis John Thomas Howell 1945-5-20 s.n. Marin Tiburon. Comment
  UCD108782  Vicia benghalensis John Thomas Howell 1945-5-20 s.n. Marin Tiburon. Comment
  UCD119882  Cryptantha micromeres John Thomas Howell 1946-5-12 21791 Marin Carson Ridge. Comment
  UCD121466  Zeltnera davyi John Thomas Howell 1945-8-19 21420 Marin East side of Inverness Ridge along Point Reyes Road. Comment
  UCD125196  Monardella purpurea John Thomas Howell 1946-6-23 22115 Marin Carson Ridge on burn. Comment
  UCD126149  Calystegia occidentalis John Thomas Howell 1947-5-8 23137 Marin Sausalito. Comment
  UCD126371  Dichondra donelliana John Thomas Howell 1947-5-8 23147 Marin Sausalito. Comment
  UCD126376  Calystegia occidentalis John Thomas Howell 1947-5-8 23140 Marin Sausalito. Comment
  UCD127579  Lilaeopsis masonii John Thomas Howell 1946-6-30 22164 Marin Rodeo Lagoon. Comment
  UCD132358  Galinsoga parviflora John Thomas Howell 1965-6-29 41369 Marin Lakespur. Comment
  UCD133981  Leontodon saxatilis John Thomas Howell 1945-7-29 21333 Marin Bolinas. Comment
  UCD135626  Senecio minimus John Thomas Howell 1944-6-25 s.n. Marin near Chinese Camp. Comment
  UCD135753  Senecio sylvaticus John Thomas Howell 1942-4-19 s.n. Marin Carson Ridge. Comment
  UCD137362  Lonicera japonica John Thomas Howell 1947-5-21 23190 Marin Tiburon. Comment
  UCD137543  Plectritis congesta subsp. brachystemon John Thomas Howell 1947-5-18 23184 Marin Lagunitas Meadows. Comment
  UCD140239  Carex cusickii John Thomas Howell 1958-6-28 33641 Marin Mt. Tamalpais. Comment
  UCD142416  Euphorbia oblongata John Thomas Howell 1974-4-25 50327 Marin Ross. Along Lagunitas Road. Comment
  UCD142684  Euphorbia prostrata John Thomas Howell 1942-7-6 23328 Marin Mill Valley. Comment
  UCD142809  Euphorbia serpillifolia John Thomas Howell 1946-6-16 22065 Marin San Anselmo. Comment
  UCD48713  Navarretia viscidula John Thomas Howell 1945-7-15 21303 Marin Near Meadow Club SW of Fairfax. Comment
  UCD98217  Chenopodium macrospermum John Thomas Howell 1951-10-11 28296 Marin Drake Memorial, Pt. Reyes Peninsula. Comment



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