Search Results — 2000 specimen records retrieved (1425 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/consortium/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC100971  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-BC10180  Delphinium hesperium John Thomas Howell 1946-5-19 21928 Marin Saddle between Big and Little Carson Canyons Comment
  CAS-BOT-BC10183  Delphinium hesperium John Thomas Howell 1940-5-26 15522 Marin San Anselmo Canyon Comment
  CAS-BOT-BC104148  Salix hindsiana John Thomas Howell 1939-9-3 15347 Marin San Antonio Creek Comment
  CAS-BOT-BC104202  Quercus X morehus John Thomas Howell 1939-10-29 s.n. Marin San Geronimo Ridge Comment
  CAS-BOT-BC104415  Quercus X subconvexa John Thomas Howell 1939-10-15 s.n. Marin near Liberty Camp Comment
  CAS-BOT-BC104417  Quercus X subconvexa John Thomas Howell 1941-4-17 s.n. Marin Wind-swept hills above Tiburon 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-BC104881  Quercus wislizeni John Thomas Howell 1927-8-22 3033 Marin on S side of Mt. Tamalpais above Mill Valley 152 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-BC105833  Cirsium andrewsii John Thomas Howell 1933-7-30 11478 Marin Marsh near summit of road from Inverness to Pt. Reyes Comment
  CAS-BOT-BC105835  Cirsium andrewsii John Thomas Howell 1939-6-4 14719 Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC105837  Cirsium andrewsii John Thomas Howell 1946-6-30 22129 Marin Marsh east of Rodeo Lagoon Comment
  CAS-BOT-BC105839  Cirsium andrewsii John Thomas Howell 1939-7-2 14818 Marin Elk Valley, east of Tennessee Cove Comment
  CAS-BOT-BC105841  Cirsium andrewsii John Thomas Howell 1939-7-2 14818 Marin Elk Valley Comment
  CAS-BOT-BC107308  Salix lasiolepis var. bigelovii John Thomas Howell 1946-7-4 22180 Marin Dillons Beach Comment
  CAS-BOT-BC107310  Salix lasiolepis var. bigelovii John Thomas Howell 1946-4-14 21614 Marin Near Tomales Comment
  CAS-BOT-BC107312  Salix lasiolepis var. bigelovii John Thomas Howell 1949-6-7 25344 Marin Dillons Beach Comment
  CAS-BOT-BC107320  Salix lasiolepis var. bigelovii John Thomas Howell 1944-3-26 19347 Marin Pt. Reyes road beyond Ledum Swamp Comment
  CAS-BOT-BC108914  Ribes divaricatum var. pubiflorum John Thomas Howell 1933-7-30 11476 Marin Near Inverness. Comment
  CAS-BOT-BC108916  Ribes divaricatum var. pubiflorum John Thomas Howell 1944-5-14 19468 Marin Salmon Creek Canyon. Comment
  CAS-BOT-BC108924  Ribes divaricatum var. pubiflorum John Thomas Howell 1941-7-6 16357 Marin Kent Trail, Mount Tamalpais. Comment
  CAS-BOT-BC110188  Carex buxbaumii John Thomas Howell 1947-6-4 23213 Marin Swale near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC111244  Schoenoplectus californicus John Thomas Howell 1945-8-19 21439 Marin Salt marsh at head of Drakes Bay. Comment
  CAS-BOT-BC111246  Schoenoplectus californicus John Thomas Howell 1946-8-23 22892 Marin Pierce Pt. road, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC111309  Schoenoplectus acutus var. occidentalis John Thomas Howell 1944-6-25 19658 Marin Salt marsh between Santa Venetia and Chinese Camp Comment
  CAS-BOT-BC111311  Schoenoplectus acutus var. occidentalis John Thomas Howell 1946-9-15 23007 Marin Hidden Lake 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-BC111569  Schoenoplectus americanus John Thomas Howell 1945-7-8 s.n. Marin Burdell Comment
  CAS-BOT-BC111705  Schoenoplectus pungens var. badius John Thomas Howell 1945-5-20 20872 Marin Tiburon 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-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-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-BC115584  Carex tumulicola John Thomas Howell 1944-4-13 19370 Marin Big Rock Ridge west of Hamilton Field. 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-BC116773  Carex subfusca John Thomas Howell 1942-5-2 17936 Marin Warm Spring, Big Carson Canyon Comment
  CAS-BOT-BC116896  Carex subbracteata var. subbracteata John Thomas Howell 1943-5-22 18158 Marin Lagunitas Meadows. Comment
  CAS-BOT-BC116898  Carex subbracteata var. subbracteata John Thomas Howell 1946-5-16 21858 Marin Angel Island, SE side. 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-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-BC118431  Carex praegracilis John Thomas Howell 1945-5-20 20871 Marin Tiburon Comment
  CAS-BOT-BC118434  Carex praegracilis John Thomas Howell 1946-6-13 22043 Marin East of Aurora School at Sonoma Co. line. Comment
  CAS-BOT-BC119036  Carex pellita John Thomas Howell 1939-6-4 14722 Marin Pt. Reyes Peninsula. 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-BC119275  Carex ovalis John Thomas Howell 1946-6-13 22061 Marin Estero School north of Dillons Beach. Comment
  CAS-BOT-BC119390  Carex obnupta John Thomas Howell 1946-7-4 22179 Marin Dillons Beach. Comment
  CAS-BOT-BC119393  Carex obnupta John Thomas Howell 1943-6-13 18228 Marin Sausalito hills Comment
  CAS-BOT-BC121848  Dirca occidentalis John Thomas Howell 1948-5-31 24329 Marin Devils Gulch near Camp Taylor Comment
  CAS-BOT-BC12484  Lepidium nitidum John Thomas Howell 1939-5-28 7406 Marin Point Reyes Peninsula. Comment
  CAS-BOT-BC125941  Salix X rubens John Thomas Howell 1980-9-8 53899 Marin Between Alpine and Bon Tempe lakes Comment
  CAS-BOT-BC125980  Salix scouleriana John Thomas Howell 1952-6-3 28324 Marin Near Ledum Swamp, Pt. Reyes Peninsula 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-BC127184  Agrostis exarata John Thomas Howell 1966-7-20 41992 Marin Area adjacent to the John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC127188  Agrostis exarata John Thomas Howell 1945-7-4 21274 Marin 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-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-BC127201  Agrostis exarata John Thomas Howell 1947-5-30 23208 Marin Ross. Comment
  CAS-BOT-BC127206  Agrostis exarata John Thomas Howell 1946-6-16 22088 Marin Point Reyes Station. Comment
  CAS-BOT-BC127208  Agrostis exarata John Thomas Howell 1942-7-12 s.n. Marin Mount Tamalpais. Potrero Meadow. Comment
  CAS-BOT-BC127210  Agrostis exarata John Thomas Howell 1943-6-8 18219 Marin Tiburon. Comment
  CAS-BOT-BC127213  Agrostis exarata John Thomas Howell 1943-7-11 s.n. Marin Mount Tamalpais. Potrero Meadow. Comment
  CAS-BOT-BC127215  Agrostis exarata John Thomas Howell 1943-5-22 18156 Marin Lagunitas Meadows. Comment
  CAS-BOT-BC127217  Agrostis exarata John Thomas Howell 1966-4-30 41527 Marin 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-BC127220  Agrostis exarata John Thomas Howell 1944-7-7 19676 Marin Lagunitas Creek at Berry Trail. Comment
  CAS-BOT-BC127223  Agrostis exarata John Thomas Howell 1939-3-14 14661 Marin Phoenix Lake. Comment
  CAS-BOT-BC127227  Agrostis exarata John Thomas Howell 1942-6-7 s.n. Marin San Anselmo Canyon. Comment
  CAS-BOT-BC127229  Agrostis exarata John Thomas Howell 1943-6-6 s.n. Marin Mill Valley steps. Comment
  CAS-BOT-BC127428  Agrostis densiflora John Thomas Howell 1945-6-12 20962 Marin Near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC12743  Lepidium oxycarpum John Thomas Howell 1933-4-1 10919 Marin 4.5 miles north of San Rafael. Comment
  CAS-BOT-BC127472  Agrostis densiflora John Thomas Howell 1947-5-14 23156 Marin McClure Beach. Comment
  CAS-BOT-BC127473  Agrostis densiflora John Thomas Howell 1946-5-6 s.n. Marin Point Reyes Lighthouse. Comment
  CAS-BOT-BC127489  Agrostis capillaris John Thomas Howell 1945-6-12 20955 Marin Near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC127490  Agrostis capillaris John Thomas Howell 1942-7-12 s.n. Marin Cascade Canyon, Mill Valley. Comment
  CAS-BOT-BC127492  Agrostis capillaris John Thomas Howell 1947-5-14 23165 Marin McClure Beach. Comment
  CAS-BOT-BC127505  Agrostis blasdalei John Thomas Howell 1947-5-14 23150 Marin Drakes Estero west northwest of Mount Vision. Comment
  CAS-BOT-BC127507  Agrostis blasdalei John Thomas Howell 1946-6-9 22006 Marin North of Abbotts Lagoon. Comment
  CAS-BOT-BC128150  Salix lasiandra var. lasiandra John Thomas Howell 1980-9-8 53897 Marin Between Alpine and Bon Tempe Lakes Comment
  CAS-BOT-BC13122  Agoseris hirsuta John Thomas Howell 1946-5-19 21911 Marin Meadow Club, Fairfax Hills 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-BC13126  Agoseris hirsuta John Thomas Howell 1946-6-16 22071 Marin Inverness Park Comment
  CAS-BOT-BC13131  Agoseris hirsuta John Thomas Howell 1943-6-8 18221 Marin Tiburon Peninsula Comment
  CAS-BOT-BC13132  Agoseris hirsuta John Thomas Howell 1937-6-13 13050 Marin Bolinas Comment
  CAS-BOT-BC132531  Calochortus tiburonensis John Thomas Howell 1972-6-18 48876 Marin Slope above Vista de la Bahia at north end of Tiburon Peninsula Comment
  CAS-BOT-BC132562  Calochortus umbellatus John Thomas Howell 1946-5-12 21812 Marin Carson country Comment
  CAS-BOT-BC132896  Adenostoma fasciculatum John Thomas Howell 1946-5-12 s.n. Marin Carson Ridge Comment
  CAS-BOT-BC133628  Iris longipetala John Thomas Howell 1946-5-4 21709 Marin East of Aurora School at Sonoma Co. line 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-BC136589  Piperia michaelii John Thomas Howell 1941-6-10 16286 Marin Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137769  Anthoxanthum aristatum John Thomas Howell 1945-5-9 20856 Marin Low field between Hamilton Field and Ignacio. Comment
  CAS-BOT-BC137932  Alopecurus saccatus John Thomas Howell 1947-6-18 23254 Marin Laguna, Chileno Valley. Comment
  CAS-BOT-BC138054  Alopecurus aequalis var. sonomensis John Thomas Howell 1945-7-29 21358 Marin Between Bolinas radio station and Rio Honda. Comment
  CAS-BOT-BC138194  Aira praecox John Thomas Howell 1946-5-5 s.n. Marin Point Reyes dunes. 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-BC138833  Agrostis microphylla John Thomas Howell 1943-5-15 18091 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC138837  Agrostis microphylla John Thomas Howell 1945-9-13 s.n. Marin Near radio station, Point Reyes Peninsula. Comment
  CAS-BOT-BC138839  Agrostis microphylla John Thomas Howell 1966-6-9 41564 Marin Tiburon. Just north of John Thomas Howell Botanical Garden. Comment
  CAS-BOT-BC139028  Agrostis pallens John Thomas Howell 1943-7-11 18285 Marin Mount Tamalpais. Near Bootjack. Comment
  CAS-BOT-BC139032  Agrostis pallens John Thomas Howell 1946-6-30 22161 Marin Rodeo Lagoon. Comment
  CAS-BOT-BC139033  Agrostis pallens John Thomas Howell 1943-6-6 18205 Marin Ridge southeast of Muir Woods. Comment
  CAS-BOT-BC139035  Agrostis pallens John Thomas Howell 1939-6-18 14781 Marin Near Mud Lake. Comment
  CAS-BOT-BC139037  Agrostis pallens John Thomas Howell 1946-5-16 21876 Marin Angel Island, south side. Comment
  CAS-BOT-BC139039  Agrostis pallens John Thomas Howell 1943-5-15 18083 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC139479  Agrostis hallii John Thomas Howell 1944-6-4 19560 Marin Near Mount Vision west of Inverness. Comment
  CAS-BOT-BC139485  Agrostis hallii John Thomas Howell 1943-7-3 s.n. Marin Mount Tamalpais. Near Bootjack. Comment
  CAS-BOT-BC139487  Agrostis hallii John Thomas Howell 1946-6-30 22166 Marin Rodeo Lagoon. Comment
  CAS-BOT-BC139490  Agrostis hallii John Thomas Howell 1944-6-4 19560 Marin Near Mount Vision west of 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-BC139664  Agrostis gigantea John Thomas Howell 1944-7-30 s.n. Marin Mill Valley. Near Locust Ave. 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-BC139670  Agrostis gigantea John Thomas Howell 1944-6-25 19644 Marin Santa Ventia. Comment
  CAS-BOT-BC139672  Agrostis gigantea John Thomas Howell 1944-9-10 20720 Marin Marshes north of Olema. Comment
  CAS-BOT-BC139673  Agrostis gigantea John Thomas Howell 1943-7-4 18279 Marin Inverness. 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-BC141322  Phoradendron serotinum subsp. tomentosum John Thomas Howell 1942-2-22 16932 Marin Along old stage road, West Point to Cypress, S side 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-BC141592  Cotoneaster pannosus John Thomas Howell 1959-11-4 35104 Marin Sausalito Comment
  CAS-BOT-BC142512  Amelanchier utahensis John Thomas Howell 1941-6-29 16328 Marin Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC142513  Amelanchier utahensis John Thomas Howell 1946-5-14 21830 Marin Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC142515  Amelanchier utahensis John Thomas Howell 1940-5-12 15419 Marin Lagunitas Creek Comment
  CAS-BOT-BC142517  Amelanchier utahensis John Thomas Howell 1947-4-23 23060 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC143033  Eruca vesicaria subsp. sativa J. T. Howell 1988-7-16 s.n. Marin Terra Linda Community Gardens Comment
  CAS-BOT-BC143093  Potentilla anserina subsp. pacifica John Thomas Howell 1966-4-18 41508 Marin Gully just north of John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC143715  Heteromeles arbutifolia John Thomas Howell 1949-4-6 25300 Marin Black Point Comment
  CAS-BOT-BC144017  Horkelia marinensis John Thomas Howell 1933-10-8 11703 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC144705  Ribes sanguineum var. glutinosum John Thomas Howell 1944-3-26 19341 Marin Inverness Comment
  CAS-BOT-BC145418  Brachypodium distachyon John Thomas Howell 1949-6-7 25340 Marin Chileno Valley. 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-BC145475  Briza maxima John Thomas Howell 1941-5-25 16223 Marin Mount Tamalpais. Potrero Meadows. Comment
  CAS-BOT-BC146514  Horkelia tenuiloba John Thomas Howell 1939-7-16 14847 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC146589  Carex gynodynama John Thomas Howell 1946-5-4 21728 Marin Near Dillons Beach Comment
  CAS-BOT-BC146595  Carex gynodynama John Thomas Howell 1938-6-5 13901 Marin Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC146632  Carex mendocinensis John Thomas Howell 1940-5-26 15535 Marin Little Carson Falls Comment
  CAS-BOT-BC147490  Rosa californica John Thomas Howell 1944-7-2 s.n. Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC147495  Rosa californica John Thomas Howell 1945-5-20 20868 Marin Tiburon Comment
  CAS-BOT-BC147502  Rosa californica John Thomas Howell 1944-6-25 19651 Marin Santa Venetia Comment
  CAS-BOT-BC147507  Rosa californica John Thomas Howell 1954-8-1 30017 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC147509  Rosa californica John Thomas Howell 1939-9-3 15357 Marin San Antonio Creek Comment
  CAS-BOT-BC148227  Rosa spithamea John Thomas Howell 1945-8-12 21376 Marin Chaparral near Azalea Flat, 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-BC148231  Rosa spithamea John Thomas Howell 1946-9-8 23001 Marin Burned area sw. of Lake Lagunitas, Mt. Tamalpais Comment
  CAS-BOT-BC148905  Bromus carinatus var. marginatus John Thomas Howell 1945-7-4 21270 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-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-BC149210  Bromus carinatus var. carinatus John Thomas Howell 1943-5-15 18099 Marin Tiburon Peninsula. Comment
  CAS-BOT-BC149215  Bromus carinatus var. carinatus John Thomas Howell 1958-6-28 33636 Marin Mount Tamalpais. South side of Alpine Lake. Comment
  CAS-BOT-BC149220  Bromus carinatus var. carinatus John Thomas Howell 1945-7-4 21275 Marin Inverness. Comment
  CAS-BOT-BC149225  Bromus carinatus var. carinatus John Thomas Howell 1947-4-27 23079 Marin Bald Mountain west of San Anselmo. Comment
  CAS-BOT-BC149245  Bromus carinatus var. carinatus John Thomas Howell 1943-6-6 18215 Marin Railroad grade above Muir Woods. Comment
  CAS-BOT-BC149247  Bromus carinatus var. carinatus John Thomas Howell 1943-5-22 18129 Marin Deer Park near Fairfax. Comment
  CAS-BOT-BC149249  Bromus carinatus var. carinatus John Thomas Howell 1940-5-12 15442 Marin Fairfax. Comment
  CAS-BOT-BC149250  Bromus carinatus var. carinatus John Thomas Howell 1959-11-4 35114 Marin Shore of Bolinas Lagoon north of Stinson Beach. Comment
  CAS-BOT-BC151167  Prunus subcordata John Thomas Howell 1944-4-13 19369 Marin Big Rock Ridge west of Hamilton Field Comment
  CAS-BOT-BC154379  Phacelia suaveolens John Thomas Howell 1946-5-19 21919 Marin Capon Ridge Comment
  CAS-BOT-BC154382  Phacelia suaveolens John Thomas Howell 1946-6-2 21973 Marin Rocky Ridge Fire Trail, Mt. Tamalpais Comment
  CAS-BOT-BC155011  Bromus hordeaceus John Thomas Howell 1941-5-25 s.n. Marin Mount Tamalpais. West Point. Comment
  CAS-BOT-BC155378  Bromus hordeaceus John Thomas Howell 1945-5-27 20885 Marin Mount Tamalpais. Northeast of Mountain Theater. Comment
  CAS-BOT-BC155830  Bromus catharticus var. elatus John Thomas Howell 1954-7-29 30016 Marin Olema. Comment
  CAS-BOT-BC155935  Bromus commutatus John Thomas Howell 1946-6-9 22016 Marin Near Olema. Comment
  CAS-BOT-BC155937  Bromus commutatus John Thomas Howell 1945-6-24 21245 Marin Mount Tamalpais, Lagunitas Meadow. Comment
  CAS-BOT-BC156101  Bromus diandrus John Thomas Howell 1966-4-6 41474 Marin Tiburon. John Thomas Howell Botanical Garden. Comment
  CAS-BOT-BC157541  Solanum umbelliferum J. T. Howell 1939-4-23 14606 Marin Blythedale Canyon, Mill Valley Comment
  CAS-BOT-BC157715  Drymocallis glandulosa var. glandulosa John Thomas Howell 1925-4-5 901 Marin Pipeline Trail Comment
  CAS-BOT-BC157944  Prunus emarginata John Thomas Howell 1949-4-27 25312 Marin Bluffs s. of Tomales Comment
  CAS-BOT-BC157946  Prunus emarginata John Thomas Howell 1943-5-30 18191 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC158719  Rubus ulmifolius John Thomas Howell 1943-9-5 19313 Marin Between Tamalpais Valley and Tamalpais High School 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-BC158837  Rubus ursinus John Thomas Howell 1938-5-22 13801 Marin San Anselmo Canyon Comment
  CAS-BOT-BC158841  Rubus ursinus John Thomas Howell 1938-6-5 13898 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC158844  Rubus ursinus John Thomas Howell 1938-6-19 13930 Marin Near Trestle, Mt. Tamalpais Comment
  CAS-BOT-BC158846  Rubus ursinus John Thomas Howell 1938-6-5 13893 Marin Near Fern Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC158848  Rubus ursinus John Thomas Howell 1938-6-5 13906 Marin Near West Point, Mt. Tamalpais Comment
  CAS-BOT-BC158851  Rubus ursinus John Thomas Howell 1938-5-22 13801 Marin San Anselmo Canyon Comment
  CAS-BOT-BC158854  Rubus ursinus John Thomas Howell 1938-5-22 13788 Marin San Anselmo Canyon Comment
  CAS-BOT-BC160252  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John Thomas Howell 1946-5-4 21749 Marin Dillons Beach 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-BC161395  Bromus tectorum John Thomas Howell 1941-6-25 s.n. Marin West Point, Mount Tamalpais. Comment
  CAS-BOT-BC161397  Bromus tectorum John Thomas Howell 1943-5-9 17940 Marin San Rafael. Comment
  CAS-BOT-BC161647  Bromus sterilis John Thomas Howell 1955-5-13 30150 Marin Shell Beach. Comment
  CAS-BOT-BC161853  Bromus rubens John Thomas Howell 1944-5-28 19515 Marin Between Manzanita and Almonte. Comment
  CAS-BOT-BC162250  Bromus maritimus John Thomas Howell 1939-6-4 14715 Marin Point Reyes Lighthouse. Comment
  CAS-BOT-BC162327  Bromus madritensis John Thomas Howell 1947-4-27 23096 Marin Bald Mountain west of San Anselmo. Comment
  CAS-BOT-BC162329  Bromus madritensis John Thomas Howell 1947-4-27 23096 Marin Bald Mountain west of San Anselmo. Comment
  CAS-BOT-BC162432  Bromus laevipes John Thomas Howell 1938-6-19 13919 Marin Mount Tamalpais. Bootjack. Comment
  CAS-BOT-BC162433  Bromus laevipes John Thomas Howell 1941-5-25 16206 Marin Mount Tamalpais. Arturo Trail. Comment
  CAS-BOT-BC162435  Bromus laevipes John Thomas Howell 1943-5-9 17954 Marin Black Canyon, San Rafael Hills. Comment
  CAS-BOT-BC16449  Barbarea orthoceras John Thomas Howell 1946-5-12 21794 Marin Carson Ridge. 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-BC164551  Clarkia purpurea subsp. viminea John Thomas Howell 1941-6-10 s.n. Marin Black Point Comment
  CAS-BOT-BC164609  Clarkia gracilis subsp. gracilis John Thomas Howell 1943-5-9 17958 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC164611  Clarkia gracilis subsp. gracilis John Thomas Howell 1946-5-12 21811 Marin Carson Ridge Comment
  CAS-BOT-BC165078  Clarkia rubicunda John Thomas Howell 1946-7-7 22189 Marin Above Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC168741  Ribes victoris John Thomas Howell 1943-3-7 17887 Marin Hills northeast of San Rafael Comment
  CAS-BOT-BC168744  Ribes victoris John Thomas Howell 1941-6-8 16256 Marin Hills ne. of San Rafael Comment
  CAS-BOT-BC168746  Ribes victoris John Thomas Howell 1942-7-12 17033 Marin Above Lake Lagunitas on Northside Trail, Mt. Tamalpais Comment
  CAS-BOT-BC168748  Ribes victoris John Thomas Howell 1943-3-7 17884 Marin Hills northeast of San Rafael Comment
  CAS-BOT-BC169314  Alnus rubra John Thomas Howell 1940-5-20 15485 Marin Inverness Comment
  CAS-BOT-BC170988  Alnus rhombifolia John Thomas Howell 1939-10-15 s.n. Marin Alpine Dam Comment
  CAS-BOT-BC172452  Clarkia purpurea subsp. purpurea John Thomas Howell 1938-5-22 13796 Marin San Anselmo Canyon Comment
  CAS-BOT-BC17350  Arabis eschscholtziana John Thomas Howell 1944-5-14 19463 Marin Salmon Creek Canyon. Comment
  CAS-BOT-BC17515  Athysanus pusillus John Thomas Howell 1946-4-13 21603 Marin Mount Tamalpais. Near Rock Spring. 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-BC175350  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-BC175468  Alopecurus pratensis J. T. Howell 1987-5-12 s.n. Marin Terra Linda: Vellictos School. Baseball Slough, edge of baseball field Comment
  CAS-BOT-BC175916  Avena fatua John Thomas Howell 1985-7-6 s.n. Marin Vallecito School yard, Terra Linda Comment
  CAS-BOT-BC175930  Koeleria macrantha John Thomas Howell 1939-6-18 14786 Marin Near Mud Lake Comment
  CAS-BOT-BC176079  Hesperolinon congestum John Thomas Howell 1967-9-6 43736 Marin West of Old St. Hilary's Church, Tiburon Comment
  CAS-BOT-BC176104  Verbena lasiostachys var. scabrida John Thomas Howell 1947-5-18 23178 Marin South end of Carson Ridge 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-BC177215  Amorpha californica var. napensis John Thomas Howell 1924-8-31 651 Marin Between Phoenix and Lagunitas Lakes Comment
  CAS-BOT-BC17816  Carex amplifolia John Thomas Howell 1946-6-30 22127 Marin Marsh east of Rodeo Lagoon. 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-BC183155  Vulpia microstachys var. ciliata John Thomas Howell 1938-6-9 13909 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC183157  Vulpia microstachys var. ciliata John Thomas Howell 1946-5-14 21840 Marin Between Barth's Retreat and Potrero Meadow, 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-BC183160  Vulpia microstachys var. ciliata John Thomas Howell 1943-5-2 17930 Marin Big Carson Canyon Comment
  CAS-BOT-BC183162  Vulpia microstachys var. ciliata John Thomas Howell 1939-5-14 14682 Marin North side, West Peak, Mt. Tamalpais Comment
  CAS-BOT-BC183163  Vulpia microstachys var. ciliata John Thomas Howell 1941-6-29 16335 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC183995  Vulpia microstachys var. microstachys John Thomas Howell 1943-5-2 s.n. Marin Big Carson 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-BC184339  Vulpia microstachys var. pauciflora John Thomas Howell 1946-5-14 21839 Marin Between Barth's Retreat and Potrero Meadow, 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-BC184351  Vulpia microstachys var. pauciflora John Thomas Howell 1946-5-14 21839 Marin Between Barths Retreat and 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-BC184361  Vulpia microstachys var. pauciflora John Thomas Howell 1941-5-25 16230 Marin Between Potrero Meadow and Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC184364  Vulpia microstachys var. pauciflora John Thomas Howell 1944-5-14 19477 Marin In Chileno Valley Comment
  CAS-BOT-BC184810  Vulpia myuros subsp. megalura John Thomas Howell 1943-5-22 18137 Marin Fairfax hills Comment
  CAS-BOT-BC184996  Calamagrostis stricta subsp. inexpansa John Thomas Howell 1947-6-4 23214 Marin Point Reyes Peninsula. Swale near radio station. Comment
  CAS-BOT-BC185026  Calamagrostis rubescens John Thomas Howell 1945-8-12 21377 Marin Mill Valley, Cascade Canyon. Comment
  CAS-BOT-BC185104  Calamagrostis ophitidis John Thomas Howell 1939-5-21 14695 Marin South end of Tiburon Peninsula. 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-BC185110  Calamagrostis ophitidis John Thomas Howell 1947-5-18 23176 Marin At south end of Carson Ridge. Comment
  CAS-BOT-BC185231  Calamagrostis koelerioides John Thomas Howell 1945-7-15 21309 Marin Near Liberty's. Comment
  CAS-BOT-BC185861  Vulpia octoflora var. hirtella John Thomas Howell 1947-5-25 23197 Marin Simmons Trail, Mt. Tamalpais Comment
  CAS-BOT-BC185972  Vulpia octoflora var. octoflora John Thomas Howell 1944-6-4 19534 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-BC187883  Sidalcea calycosa subsp. rhizomata John Thomas Howell 1946-8-23 22884 Marin Pierce Point Road, Point Reyes Peninsula Comment
  CAS-BOT-BC188  Agrostis aristiglumis John Thomas Howell 1947-5-14 23149 Marin Drakes Estero WNW of Mt. Vision 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-BC189715  Danthonia californica John Thomas Howell 1966-4-18 41502 Marin Tiburon. John Thomas Howell Botanical Garden. Comment
  CAS-BOT-BC189719  Danthonia californica John Thomas Howell 1943-5-15 18069 Marin Tiburoun Peninsula. Comment
  CAS-BOT-BC189720  Danthonia californica John Thomas Howell 1950-6-4 26624 Marin Mount Tamalpais. Near Mountain Home. Comment
  CAS-BOT-BC189725  Danthonia californica John Thomas Howell 1941-5-25 16210 Marin Rifle Camp, Mount Tamalpais. Comment
  CAS-BOT-BC189727  Danthonia californica John Thomas Howell 1966-4-30 41525 Marin Tiburon. John Thomas Howell Botanical Garden. Southeast of church. Comment
  CAS-BOT-BC190121  Crypsis schoenoides John Thomas Howell 1980-9-8 53895 Marin Desiccated bottom of 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-BC191537  Chorizanthe cuspidata var. villosa John Thomas Howell 1946-5-4 21747 Marin Dillons Beach Comment
  CAS-BOT-BC191539  Chorizanthe cuspidata var. villosa John Thomas Howell 1939-6-4 14716 Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC191541  Chorizanthe cuspidata var. villosa John Thomas Howell 1946-6-9 21999 Marin Abbotts Lagoon 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-BC19246  Carex barbarae John Thomas Howell 1980-9-8 53900 Marin Between Alpine and Bon Tempe Lakes. Comment
  CAS-BOT-BC192552  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1946-6-16 22085 Marin Pt. Reyes Station 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-BC192557  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1941-5-25 16224 Marin Potrero Meadow, Mt. Tamalpais 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-BC194529  Garrya elliptica John Thomas Howell 1925-2-1 738 Marin North side of Mt. Tamalpais on Lake Lagunitas Trail 609 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-BC195585  Catapodium rigidum John Thomas Howell 1945-8-12 21378 Marin Cascade Canyon, Mill Valley 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-BC196  Agrostis longiligula var. australis John Thomas Howell 1943-7-4 18250 Marin Ledum Swamp on road to Pt. Reyes. Comment
  CAS-BOT-BC196046  Lupinus albifrons var. collinus John Thomas Howell 1940-5-26 15544 Marin Little Carson Comment
  CAS-BOT-BC196169  Lupinus albifrons var. douglasii John Thomas Howell 1941-6-29 16345 A Marin Near West Point, Mt. Tamalpais 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-BC196409  Lupinus arboreus John Thomas Howell 1930-4-20 4740 Marin Pt. Reyes 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-BC197  Agrostis longiligula var. australis John Thomas Howell 1943-7-4 18250 Marin Ledum Swamp 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-BC198487  Deschampsia danthonioides John Thomas Howell 1944-5-21 19498 Marin Lagunitas Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC198490  Deschampsia danthonioides John Thomas Howell 1945-5-9 20834 Marin Between Hamilton Field and Ignacio. Comment
  CAS-BOT-BC198781  Vulpia bromoides John Thomas Howell 1943-5-9 17973 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-BC198791  Vulpia bromoides John Thomas Howell 1939-4-23 14599 Marin Blythedale Canyon, Mill Valley Comment
  CAS-BOT-BC19960  Carex exsiccata John Thomas Howell 1946-6-20 22104 Marin 4 miles north of Bolinas. Comment
  CAS-BOT-BC199635  Trisetum canescens John Thomas Howell 1947-6-4 23211 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC199637  Trisetum canescens John Thomas Howell 1939-5-14 14659 Marin Ross Comment
  CAS-BOT-BC199639  Trisetum canescens John Thomas Howell 1943-5-15 18087 Marin Tiburon Peninsula Comment
  CAS-BOT-BC199641  Trisetum canescens John Thomas Howell 1949-5-15 25313 Marin West of Inverness Comment
  CAS-BOT-BC199644  Trisetum canescens John Thomas Howell 1941-6-29 16344 Marin Between Laurel Dell and Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC199646  Trisetum canescens John Thomas Howell 1943-5-15 18087 Marin Tiburon Peninsula Comment
  CAS-BOT-BC200051  Rhododendron occidentale var. occidentale John Thomas Howell 1943-5-30 18193 Marin Azalea Flat, Mt. Tamalpais Comment
  CAS-BOT-BC200479  Triticum aestivum John Thomas Howell 1945-5-9 s.n. Marin Ignacio Comment
  CAS-BOT-BC201819  Deschampsia elongata John Thomas Howell 1943-5-9 17951 Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC201820  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-BC201825  Deschampsia elongata John Thomas Howell 1942-6-21 s.n. Marin Carson Ridge Comment
  CAS-BOT-BC201827  Deschampsia elongata John Thomas Howell 1945-6-3 209525 Marin Shell Beach Comment
  CAS-BOT-BC202167  Lupinus tidestromii John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True 1980-6-19 53722 Marin Near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC202872  Paxistima myrsinites John Thomas Howell 1941-3-16 16155 Marin About midway between Laurel Dell and Barth's Retreat, Mt. Tamalpais Comment
  CAS-BOT-BC203491  Elymus glaucus subsp. glaucus John Thomas Howell 1941-6-29 16342 Marin Laurel Dell, Mt. Tamalpais 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-BC203508  Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-9 17964 Marin San Rafael hills 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-BC203525  Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-15 18097 Marin Tiburon Peninsula Comment
  CAS-BOT-BC203527  Elymus glaucus subsp. glaucus John Thomas Howell 1944-5-21 19490 Marin West end of Phoenix Lake, Mt. Tamalpais Comment
  CAS-BOT-BC203804  Elymus glaucus subsp. virescens John Thomas Howell 1945-6-24 21242 Marin Willow Meadows, Kent Trail, Mt. Tamalpais Comment
  CAS-BOT-BC203806  Elymus glaucus subsp. virescens John Thomas Howell 1946-6-9 22009 Marin Pierce Ranch, n. Pt. Reyes Peninsula Comment
  CAS-BOT-BC203808  Elymus glaucus subsp. virescens John Thomas Howell 1947-5-14 23161 Marin McClure Beach Comment
  CAS-BOT-BC203810  Elymus glaucus subsp. virescens John Thomas Howell 1946-7-7 22221 Marin West Peak, Mt. Tamalpais 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-BC203850  Elymus X hansenii John Thomas Howell 1939-7-2 14845 Marin Near 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-BC203857  Elymus X hansenii John Thomas Howell 1943-5-15 18074 Marin Tiburon Peninsula 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-BC203862  Elymus X hansenii John Thomas Howell 1948-5-31 24325 Marin Devils Gulch near Camp Taylor 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-BC205538  Sidalcea hickmanii subsp. viridis John Thomas Howell 1942-6-21 16997 Marin Carson Ridge Comment
  CAS-BOT-BC205543  Sidalcea hickmanii subsp. viridis John Thomas Howell 1942-6-21 16997 Marin Carson Ridge Comment
  CAS-BOT-BC205545  Sidalcea hickmanii subsp. viridis John Thomas Howell 1942-6-21 16997 Marin Carson Ridge Comment
  CAS-BOT-BC207287  Pickeringia montana var. montana John Thomas Howell 1924-9-14 656 Marin S slope of Mt. Tamalpais Comment
  CAS-BOT-BC208071  Genista monspessulana John Thomas Howell 1966-4-6 41471 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC20838  Carex garberi John Thomas Howell 1947-5-14 23170 Marin Near Ledum Swamp, Pt. Reyes Peninsula. 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-BC20885  Carex globosa John Thomas Howell 1942-5-3 s.n. Marin Mill Valley, Summit Avenue. Comment
  CAS-BOT-BC20896  Carex globosa John Thomas Howell 1944-5-21 19491 Marin Lagunitas Meadows. Mt. Tamalpais. Comment
  CAS-BOT-BC209004  Digitaria sanguinalis John Thomas Howell 1989-10-16 s.n. Marin Terra Linda, Freitas Park Comment
  CAS-BOT-BC209203  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1941-5-25 16225 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC209254  Ribes menziesii John Thomas Howell 1939-5-21 14699 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC209261  Ribes menziesii John Thomas Howell 1926-2-22 1644 Marin Inverness Comment
  CAS-BOT-BC209266  Ribes menziesii John Thomas Howell 1943-6-13 18232 Marin Sausalito Comment
  CAS-BOT-BC210248  Cornus sericea John Thomas Howell 1939-7-2 14838 Marin Between Big Lagoon and Muir Woods Comment
  CAS-BOT-BC210251  Cornus sericea John Thomas Howell 1946-6-13 22026 Marin Chileno Valley Comment
  CAS-BOT-BC21122  Carex leptalea John Thomas Howell 1943-7-4 18254 Marin Ledum Swamp on road to Pt. Reyes. Comment
  CAS-BOT-BC213152  Sidalcea calycosa subsp. rhizomata John Thomas Howell 1939-6-4 14724 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC21340  Agoseris grandiflora var. grandiflora John Thomas Howell 1947-5-18 23172 Marin Fairfax Hills Comment
  CAS-BOT-BC213561  Eragrostis hypnoides John Thomas Howell 1988-9-15 s.n. Marin Nicasio Reservoir 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-BC215070  Lupinus chamissonis John Thomas Howell 1939-6-4 14729 Marin Point Reyes Peninsula Comment
  CAS-BOT-BC215708  Lepechinia calycina John Thomas Howell 1930-12-28 5723 Marin Slope of Mt. Tamalpais above Mill Valley Comment
  CAS-BOT-BC215710  Lepechinia calycina John Thomas Howell 1946-5-12 21810 Marin Carson Ridge Comment
  CAS-BOT-BC215882  Calystegia purpurata subsp. purpurata John Thomas Howell 1947-5-8 23139 Marin Sausalito Comment
  CAS-BOT-BC215885  Calystegia purpurata subsp. purpurata John Thomas Howell 1944-5-28 19527 Marin Between Almonte and Mill Valley Comment
  CAS-BOT-BC215887  Calystegia purpurata subsp. purpurata John Thomas Howell 1946-5-12 21786 Marin Carson Ridge 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-BC215892  Calystegia purpurata subsp. purpurata John Thomas Howell 1933-4-30 11197 Marin North side of Mt. Tamalpais Comment
  CAS-BOT-BC215893  Calystegia purpurata subsp. purpurata John Thomas Howell 1925-4-5 895 Marin Pipeline Trail 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-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-BC220396  Monardella purpurea John Thomas Howell 1939-6-25 14808 Marin Mt. Tamalpais above Cascade Canyon Comment
  CAS-BOT-BC220403  Monardella purpurea John Thomas Howell 1946-6-23 22115 Marin Carson Ridge Comment
  CAS-BOT-BC220416  Monardella purpurea John Thomas Howell 1930-7-20 5382 Marin Slope of Mt. Tamalpais on south-east side along Wheeler Trail Comment
  CAS-BOT-BC220539  Monardella villosa John Thomas Howell 1944-7-9 19689 Marin Inverness Ridge Comment
  CAS-BOT-BC220541  Monardella villosa John Thomas Howell 1946-5-16 21874 Marin Angel Island, s. side Comment
  CAS-BOT-BC22129  Carex harfordii John Thomas Howell 1944-7-9 19694 Marin Inverness Ridge. Comment
  CAS-BOT-BC22130  Carex harfordii John Thomas Howell 1943-6-13 18226 Marin Sausalito hills. 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-BC221853  Stenotaphrum secundatum John Thomas Howell 1945-7-22 21330 Marin West of Mill Valley on road to Muir Woods Comment
  CAS-BOT-BC221855  Stenotaphrum secundatum John Thomas Howell 1987-7-8 s.n. Marin On New Albion Way near Corte Pacheco, Terra Linda 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-BC222725  Perideridia gairdneri subsp. gairdneri John Thomas Howell 1939-10-1 15367 Marin Near Lake Lagunitas 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-BC223775  Frankenia salina John Thomas Howell 1944-6-25 19657 Marin Between Santa Venetia and Chinese Camp Comment
  CAS-BOT-BC223888  Cistus incanus John Thomas Howell 1939-9-3 15335 Marin At Black Point 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-BC224497  Cuscuta californica John Thomas Howell 1942-7-5 17010 Marin Fern Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC224502  Cuscuta californica John Thomas Howell 1941-7-6 16369 Marin Rocky Ridge Fire Trail, Mt. Tamalpais Comment
  CAS-BOT-BC224503  Cuscuta californica John Thomas Howell 1943-5-15 18073 Marin Tiburon Peninsula Comment
  CAS-BOT-BC224505  Cuscuta californica John Thomas Howell 1946-6-23 22121 Marin Carson Ridge Comment
  CAS-BOT-BC224516  Ribes menziesii John Thomas Howell 1946-4-14 21613 Marin Near Tomales Comment
  CAS-BOT-BC224723  Calystegia purpurata subsp. saxicola John Thomas Howell 1947-6-18 23285 Marin North of Dillons Beach 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-BC225478  Gilia millefoliata John Thomas Howell 1946-6-9 21997 Marin Abbotts Lagoon 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-BC229638  Carpobrotus chilensis John Thomas Howell 1945-6-12 20957 Marin Near radio station, Point Reyes Peninsula Comment
  CAS-BOT-BC231726  Solanum umbelliferum John Thomas Howell 1925-4-5 939 Marin Pipeline Trail Comment
  CAS-BOT-BC232715  Navarretia rosulata John Thomas Howell 1946-6-23 22114 Marin Carson Ridge Comment
  CAS-BOT-BC232717  Navarretia rosulata John Thomas Howell 1941-7-6 16368 Marin Rocky Ridge Fire Trail, Mount Tamalpais 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-BC233239  Polypogon maritimus John Thomas Howell 1945-6-24 21236 Marin Willow Meadows, Mount Tamalpais Comment
  CAS-BOT-BC23351  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-3-26 19356 Marin Pines west of Inverness Comment
  CAS-BOT-BC23352  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-3-26 19343 Marin Inverness Ridge Comment
  CAS-BOT-BC23354  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-4-13 19382 Marin Big Rock Ridge west of Hamilton Field Comment
  CAS-BOT-BC23355  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1946-5-16 21891 Marin Angel Island, N. side Comment
  CAS-BOT-BC23386  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1943-3-7 17883 Marin Hills northeast of San Rafael 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-BC233957  Calandrinia breweri John Thomas Howell 1946-5-12 21801 Marin Carson Ridge Comment
  CAS-BOT-BC23396  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1970-5-17 46525 Marin Throckmorton Ridge, Mt. Tamalpais 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-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-BC234679  Symphoricarpos mollis John Thomas Howell 1939-6-25 14803 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC234680  Symphoricarpos mollis John Thomas Howell 1943-5-15 18088 Marin Tiburon Peninsula Comment
  CAS-BOT-BC236221  Poa secunda subsp. secunda John Thomas Howell 1966-4-6 41462 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC236224  Poa secunda subsp. secunda John Thomas Howell 1943-5-15 18093 Marin Tiburon Peninsula, S end Comment
  CAS-BOT-BC236612  Spartina foliosa John Thomas Howell 1957-9-15 32951 Marin Richardson Bay Comment
  CAS-BOT-BC236613  Spartina foliosa John Thomas Howell 1939-9-3 15331 Marin Corte Madera salt marsh Comment
  CAS-BOT-BC236615  Spartina foliosa John Thomas Howell 1945-8-14 21413 Marin Burdell Marshes Comment
  CAS-BOT-BC236908  Chloropyron maritimum subsp. palustre John Thomas Howell 1945-6-30 21257 Marin Stinson Beach Comment
  CAS-BOT-BC236912  Chloropyron maritimum subsp. palustre John Thomas Howell 1944-5-28 19518 Marin Salt marsh, Almonte Comment
  CAS-BOT-BC237512  Polypogon viridis John Thomas Howell 1945-6-12 20947 Marin Whites Hill Comment
  CAS-BOT-BC237513  Polypogon viridis John Thomas Howell 1943-6-8 s.n. Marin Sausalito Comment
  CAS-BOT-BC238419  Orthocarpus John Thomas Howell 1957-6-27 s.n. Marin Hearts Desire Beach, Tomales Bay State Park Comment
  CAS-BOT-BC238513  Triphysaria floribunda John Thomas Howell 1945-6-3 20914 Marin Near Inverness Comment
  CAS-BOT-BC238523  Triphysaria floribunda John Thomas Howell 1947-4-23 23074 Marin Drakes Estero west of Mt. Vision Comment
  CAS-BOT-BC240005  Scribneria bolanderi John Thomas Howell 1946-4-13 s.n. Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC240007  Scribneria bolanderi John Thomas Howell 1952-5-30 28317 Marin Along fire road between Mountain Theater and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC241295  Castilleja latifolia John Thomas Howell 1940-5-20 15515 Marin Pt. Reyes Comment
  CAS-BOT-BC241297  Castilleja latifolia John Thomas Howell 1941-5-18 16190 Marin Stinson Beach Comment
  CAS-BOT-BC241299  Castilleja latifolia John Thomas Howell 1944-6-4 19536 Marin Inverness Ridge Comment
  CAS-BOT-BC241300  Castilleja latifolia John Thomas Howell 1946-4-14 21617 Marin Near Tomales Comment
  CAS-BOT-BC241302  Castilleja latifolia John Thomas Howell 1933-10-8 11704 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC241303  Castilleja latifolia John Thomas Howell 1947-6-18 23282 Marin North of Dillons Beach Comment
  CAS-BOT-BC241410  Lonicera japonica John Thomas Howell 1947-5-21 23190 Marin Tiburon Comment
  CAS-BOT-BC243491  Scribneria bolanderi John Thomas Howell 1941-5-25 s.n. Marin Between Potrero Meadows and Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC243625  Setaria pumila John Thomas Howell 1954-10-21 30112 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC244212  Poa unilateralis John Thomas Howell 1946-6-9 22008 Marin Pierce Ranch, N Point Reyes Peninsula Comment
  CAS-BOT-BC244213  Poa unilateralis John Thomas Howell 1947-5-14 23160 Marin McClure Beach Comment
  CAS-BOT-BC244215  Poa unilateralis John Thomas Howell 1946-5-26 21953 Marin Point Reyes Lighthouse Comment
  CAS-BOT-BC244526  Poa secunda subsp. secunda John Thomas Howell 1943-5-2 17931 Marin Big Carson Canyon Comment
  CAS-BOT-BC244528  Poa secunda subsp. secunda John Thomas Howell 1941-5-25 16213 Marin Rifle Camp, Mount Tamalpais Comment
  CAS-BOT-BC244530  Poa secunda subsp. secunda John Thomas Howell 1965-4-6 1793 Marin Black Canyon at waterfall at E end of Mountain View Drive, San Rafael Hills Comment
  CAS-BOT-BC24472  Arctostaphylos manzanita John Thomas Howell 1946-6-9 21996 Marin Near Inverness. Comment
  CAS-BOT-BC246655  Poa howellii John Thomas Howell 1943-4-11 17913 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC246663  Poa howellii John Thomas Howell 1933-4-12 10990 Marin Sausilito [Sausalito] Comment
  CAS-BOT-BC246665  Poa howellii John Thomas Howell 1946-5-12 21792 Marin Carson Ridge Comment
  CAS-BOT-BC246667  Poa howellii John Thomas Howell 1941-5-25 16201 Marin West Point to West Peak, Mt. Tamalpais Comment
  CAS-BOT-BC246669  Poa howellii John Thomas Howell 1939-5-14 14674 Marin Berry Trail, Mt. Tamalpais Comment
  CAS-BOT-BC247324  Poa pratensis John Thomas Howell 1943-5-22 18116 Marin Fairfax Comment
  CAS-BOT-BC247328  Poa pratensis John Thomas Howell 1943-5-30 18190 Marin Potrero Meadows, 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-BC24837  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1933-3-19 10868 Marin S. side of Mt. Tamalpais above Mill Valley. Comment
  CAS-BOT-BC24838  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1944-4-13 19383 Marin Big Rock Ridge w od Hamilton Field. Comment
  CAS-BOT-BC250602  Phalaris minor John Thomas Howell 1944-5-7 19425 Marin Greenbrae Comment
  CAS-BOT-BC250603  Phalaris minor John Thomas Howell 1944-5-28 19511 Marin Between Manzanita and Almonte Comment
  CAS-BOT-BC250723  Phalaris paradoxa John Thomas Howell 1943-5-30 18179 Marin Summit Ave., Mill Valley Comment
  CAS-BOT-BC252830  Chorizanthe polygonoides var. polygonoides John Thomas Howell 1945-5-20 20865 Marin Tiburon Comment
  CAS-BOT-BC253836  Panicum dichotomiflorum J. T. Howell 1988-8-10 s.n. Marin SW side of football field, Terra Linda High School Comment
  CAS-BOT-BC253943  Parapholis incurva John Thomas Howell 1945-5-9 20852 Marin Ignacio Comment
  CAS-BOT-BC254416  Piptatherum miliaceum John Thomas Howell 1976-6-2 51806 Marin In park, Corte Madera Comment
  CAS-BOT-BC254661  Poa douglasii John Thomas Howell 1946-5-4 21741 Marin Dillons Beach Comment
  CAS-BOT-BC255036  Poa compressa John Thomas Howell 1954-8-29 30024 Marin West Point, Mount Tamalpais Comment
  CAS-BOT-BC255674  Poa bolanderi John Thomas Howell 1946-5-16 s.n. Marin Angel Island Comment
  CAS-BOT-BC255853  Poa kelloggii John Thomas Howell 1950-5-18 26311 Marin Lagunitas Creek near Camp Taylor Comment
  CAS-BOT-BC258787  Pennisetum clandestinum John Thomas Howell 1965-10-13 41415 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC258976  Phalaris californica John Thomas Howell 1941-5-25 16218 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC259065  Phalaris lemmonii John Thomas Howell 1945-5-6 20810 Marin San Rafael Hills Comment
  CAS-BOT-BC259069  Phalaris lemmonii John Thomas Howell 1947-5-4 23136 Marin San Rafael 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-BC259189  Eriogonum latifolium John Thomas Howell 1939-7-2 14815 Marin Hills sw. of Almonte 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-BC259504  Eriogonum luteolum var. caninum John Thomas Howell 1927-8-22 3037 Marin Rock Spring Trail, west of West Point, Mt. Tamalpais 548 Comment
  CAS-BOT-BC259508  Eriogonum luteolum var. caninum John Thomas Howell 1958-6-28 33634 Marin South side of Alpine Lake, Mt. Tamalpais Comment
  CAS-BOT-BC259510  Eriogonum luteolum var. caninum John Thomas Howell 1945-9-2 s.n. Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC259520  Eriogonum luteolum var. caninum John Thomas Howell 1945-8-12 21375 Marin Near Mt. Theater, Mt. Tamalpais Comment
  CAS-BOT-BC259925  Nassella lepida John Thomas Howell 1944-5-14 19469 Marin Salmon Creek Canyon 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-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-BC259938  Nassella lepida John Thomas Howell 1944-4-23 19406 Marin SE of Kentfield Comment
  CAS-BOT-BC259940  Nassella lepida John Thomas Howell 1945-4-29 20796 Marin Fairfax Hills Comment
  CAS-BOT-BC259942  Nassella lepida John Thomas Howell 1946-5-16 21896 Marin N side of Angel Island Comment
  CAS-BOT-BC260144  Nassella pulchra John Thomas Howell 1947-4-4 s.n. Marin San Raphael Hills Comment
  CAS-BOT-BC260148  Nassella pulchra John Thomas Howell 1941-6-8 16251 Marin Hills NE of San Rafael [San Rafael Hills] Comment
  CAS-BOT-BC260151  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-BC260950  Pleuropogon californicus var. californicus John Thomas Howell 1944-7-9 19691 Marin Mt. Vision, Inverness Ridge Comment
  CAS-BOT-BC260952  Pleuropogon californicus var. californicus John Thomas Howell 1941-6-10 16280 Marin Near Black Point Comment
  CAS-BOT-BC260953  Pleuropogon californicus var. californicus John Thomas Howell 1945-5-9 20828 Marin Between Hamilton Field and Ignacio Comment
  CAS-BOT-BC262519  Melica torreyana John Thomas Howell 1939-5-21 14694 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC262520  Melica torreyana John Thomas Howell 1941-5-25 16240 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC262529  Melica torreyana John Thomas Howell 1943-5-9 17982 Marin San Rafael hills Comment
  CAS-BOT-BC262542  Melica torreyana John Thomas Howell 1941-5-25 16202 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC263961  Viola adunca John Thomas Howell 1944-3-26 19344 Marin Above Ledum Swamp, Inverness Ridge Comment
  CAS-BOT-BC264158  Melica subulata John Thomas Howell 1946-5-30 21960 Marin Laurel Dell Trail, Mt. Tamalpais Comment
  CAS-BOT-BC264161  Melica subulata John Thomas Howell 1945-6-3 20916 Marin Near Inverness Comment
  CAS-BOT-BC265641  Paspalum distichum John Thomas Howell 1965-10-13 41404 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC265769  Phalaris aquatica John Thomas Howell 1945-7-1 21266 Marin Tiburon Comment
  CAS-BOT-BC265771  Phalaris aquatica John Thomas Howell 1945-8-12 21381 Marin Above salt marsh, Tiburon Comment
  CAS-BOT-BC265858  Phalaris canariensis John Thomas Howell 1943-5-22 18123 Marin Deer Park near Fairfax Comment
  CAS-BOT-BC267191  Potamogeton foliosus John Thomas Howell; Zannichillia 1939-9-3 s.n. Marin San Antonio Creek Comment
  CAS-BOT-BC268924  Eriogonum nudum var. auriculatum John Thomas Howell 1945-7-8 21288 Marin San Antonio Station Comment
  CAS-BOT-BC268932  Eriogonum nudum var. auriculatum John Thomas Howell 1945-7-4 s.n. Marin Inverness Ridge Comment
  CAS-BOT-BC268933  Eriogonum nudum var. auriculatum John Thomas Howell 1939-9-10 15361 Marin Stinson Beach Comment
  CAS-BOT-BC269153  Lolium temulentum John Thomas Howell 1943-5-9 s.n. Marin San Raphael [Rafael] Comment
  CAS-BOT-BC269579  Symphoricarpos albus var. laevigatus John Thomas Howell 1939-5-21 s.n. Marin Shelter Cove, Tiburon Comment
  CAS-BOT-BC270568  Calycadenia multiglandulosa John Thomas Howell 1946-9-15 23009 Marin Rocky Ridge Fire Trail, Mount Tamalpais Comment
  CAS-BOT-BC271764  Melica californica John Thomas Howell 1941-5-25 16214 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC27203  Arctostaphylos cushingiana f. repens John Thomas Howell 1944-6-4 19537 Marin Inverness Ridge Comment
  CAS-BOT-BC272229  Leymus pacificus John Thomas Howell 1948-6-6 24335 Marin Stinson Beach Comment
  CAS-BOT-BC272255  Leymus X multiflorus John Thomas Howell 1946-5-16 s.n. Marin Angel Island Comment
  CAS-BOT-BC274485  Leymus triticoides John Thomas Howell 1944-9-24 20741 Marin Stinson Beach Comment
  CAS-BOT-BC274487  Leymus triticoides John Thomas Howell 1939-5-21 s.n. Marin West side, Tiburon Peninsula Comment
  CAS-BOT-BC274572  Centaurea calcitrapa John Thomas Howell 1944-6-25 19671 Marin Between McNear's Landing and San Rafael Comment
  CAS-BOT-BC278324  Festuca californica subsp. californica John Thomas Howell 1943-4-11 17912 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC278328  Festuca californica subsp. californica John Thomas Howell 1941-5-25 16205 Marin Arturo Trail, Mt. Tamalpais Comment
  CAS-BOT-BC278332  Festuca californica subsp. californica John Thomas Howell 1939-5-14 14675 Marin Berry Trail, Mt. Tamalpais Comment
  CAS-BOT-BC278333  Festuca californica subsp. californica John Thomas Howell 1938-6-19 13920 Marin Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC278440  Festuca idahoensis John Thomas Howell 1941-6-10 16293 Marin Black Point Comment
  CAS-BOT-BC278442  Festuca idahoensis John Thomas Howell 1944-5-21 19492 Marin Lagunitas Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC278443  Festuca idahoensis John Thomas Howell 1941-5-25 16208 Marin Rifle Camp, Mt. Tamalpais Comment
  CAS-BOT-BC27856  Blennosperma nanum var. robustum John Thomas Howell 1947-5-14 23153 Marin Pt. Reyes Peninsula above McClure Beach 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-BC278984  Festuca rubra John Thomas Howell 1944-4-23 19394 Marin Escalle salt marsh Comment
  CAS-BOT-BC278986  Festuca rubra John Thomas Howell 1939-6-18 14780 Marin Near Mud Lake 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-BC278994  Festuca rubra John Thomas Howell 1966-4-18 41489 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC278996  Festuca rubra John Thomas Howell 1944-6-4 19561 Marin Near Mt. Vision west of Inverness Comment
  CAS-BOT-BC278998  Festuca rubra John Thomas Howell 1939-6-4 s.n. Marin Pt. Reyes Lighthouse Comment
  CAS-BOT-BC279965  Cirsium douglasii var. douglasii John Thomas Howell 1947-6-18 23286 Marin North of Dillons Beach Comment
  CAS-BOT-BC280464  Cirsium quercetorum John Thomas Howell 1946-5-16 21885 Marin Angel Island Comment
  CAS-BOT-BC280470  Cirsium quercetorum John Thomas Howell 1943-6-13 18235 A Marin Sausalito Comment
  CAS-BOT-BC280755  Holcus lanatus John Thomas Howell 1945-7-29 21355 Marin Bolinas Comment
  CAS-BOT-BC281330  Melica harfordii John Thomas Howell 1943-5-30 18185 Marin Wheeler 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-BC281718  Carduus pycnocephalus John Thomas Howell 1946-5-4 21754 Marin Along Redwood Highway near Burdell Comment
  CAS-BOT-BC282145  Melica geyeri John Thomas Howell 1947-5-18 23185 Marin Lagunitas Meadows Comment
  CAS-BOT-BC282147  Melica geyeri John Thomas Howell 1942-5-16 s.n. Marin Sausalito Hills Comment
  CAS-BOT-BC282149  Melica geyeri John Thomas Howell 1941-5-25 16227 Marin Potrero Meadow, Mount Tamalpais Comment
  CAS-BOT-BC282503  Festuca elmeri John Thomas Howell 1944-7-7 s.n. Marin Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC282505  Festuca elmeri John Thomas Howell 1943-5-9 17952 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC282509  Festuca elmeri John Thomas Howell 1939-5-14 14665 Marin Between Phoenix Lake and Lake Lagunitas Comment
  CAS-BOT-BC282511  Festuca elmeri John Thomas Howell 1943-5-22 18121 Marin Deer Park near Fairfax Comment
  CAS-BOT-BC282798  Glyceria leptostachya John Thomas Howell 1943-9-5 19321 Marin Just south of Mill Valley Comment
  CAS-BOT-BC282800  Glyceria leptostachya John Thomas Howell 1946-6-16 22077 Marin Olema Marshes Comment
  CAS-BOT-BC282802  Glyceria leptostachya John Thomas Howell 1946-6-13 22039 Marin Chileno Valley Comment
  CAS-BOT-BC282803  Glyceria leptostachya John Thomas Howell 1939-7-2 14823 Marin Elk Valley 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-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-BC284995  Hordeum depressum John Thomas Howell 1944-5-28 s.n. Marin Almonte Comment
  CAS-BOT-BC284997  Hordeum depressum John Thomas Howell 1966-4-18 41491 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC285604  Cirsium occidentale var. occidentale John Thomas Howell 1946-5-16 21879 Marin Angel Island, s. side Comment
  CAS-BOT-BC285606  Cirsium occidentale var. occidentale John Thomas Howell 1946-5-14 21844 Marin Along road between Rock Spring and Summit Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC285608  Cirsium occidentale var. occidentale John Thomas Howell 1947-5-14 23169 Marin McClure Beach Comment
  CAS-BOT-BC286135  Conyza canadensis John Thomas Howell 1939-6-18 14768 Marin Near Mud Lake Comment
  CAS-BOT-BC286375  Cirsium occidentale var. occidentale John Thomas Howell 1939-6-25 14801 Marin Summit Avenue, Mill Valley 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-BC286525  Cirsium occidentale var. venustum John Thomas Howell 1939-6-25 14790 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC286531  Cirsium occidentale var. venustum John Thomas Howell 1939-6-25 14800 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC286534  Cirsium occidentale var. venustum John Thomas Howell 1943-5-30 18188 Marin Northside Trail, Mt. Tamalpais Comment
  CAS-BOT-BC287390  Deinandra corymbosa John Thomas Howell 1941-6-8 16252 Marin Hills NE of San Rafael Comment
  CAS-BOT-BC287397  Deinandra corymbosa John Thomas Howell 1945-9-2 21461 Marin San Rafael Hills Comment
  CAS-BOT-BC288684  Cirsium quercetorum John Thomas Howell 1939-6-4 14718 Marin Point Reyes lighthouse Comment
  CAS-BOT-BC288686  Cirsium quercetorum John Thomas Howell 1939-6-4 14721 Marin Point Reyes lighthouse Comment
  CAS-BOT-BC288735  Cirsium remotifolium John Thomas Howell 1939-6-25 14796 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC288737  Cirsium remotifolium John Thomas Howell 1939-6-25 14795 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC288744  Cirsium remotifolium John Thomas Howell 1943-5-30 18181 Marin Summit Ave, Mill Valley Comment
  CAS-BOT-BC288746  Cirsium remotifolium John Thomas Howell 1939-6-25 14796 Marin Summit Avenue, Mill Valley Comment
  CAS-BOT-BC288751  Cirsium remotifolium John Thomas Howell 1939-6-25 14799 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-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-BC289498  Hordeum brachyantherum subsp. californicum John Thomas Howell 1947-4-23 23068 Marin Drakes Estero west of Mt. Vision 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-BC289504  Hordeum brachyantherum subsp. californicum John Thomas Howell 1942-6-21 s.n. Marin San Anselmo Canyon Comment
  CAS-BOT-BC29523  Agoseris apargioides J. T. Howell 1946-5-4 21753 Marin Dillons Beach Comment
  CAS-BOT-BC29566  Agoseris apargioides var. eastwoodiae John Thomas Howell 1946-5-26 21957 Marin Point Reyes Lighthouse Comment
  CAS-BOT-BC297986  Eriophyllum confertiflorum John Thomas Howell 1950-6-11 26627 Marin Rock Spring Trail near Mt Theater, Mt Tamalpais Comment
  CAS-BOT-BC297988  Eriophyllum confertiflorum John Thomas Howell 1958-6-22 33631 Marin Fern Canyon, Mt Tamalpais Comment
  CAS-BOT-BC29991  Brassica juncea John Thomas Howell 1950-6-4 26619 Marin Mill Valley. Blithedale Canyon. Comment
  CAS-BOT-BC300238  Erigeron reductus var. angustatus John Thomas Howell 1946-7-7 22197 Marin South of Barths Retreat, Mt. Tamalpais Comment
  CAS-BOT-BC301211  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1942-6-21 16985 Marin Carson Ridge Comment
  CAS-BOT-BC302621  Gnaphalium palustre John Thomas Howell 1946-8-23 22894 Marin Pierce Pt. road, Pt. Reyes Peninsula Comment
  CAS-BOT-BC302624  Gnaphalium palustre John Thomas Howell; C. Best; W. Follette; G. H. True 1980-6-19 53727 Marin Near Abbotts Lagoon, Point Reyes Peninsula 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-BC304430  Grindelia hirsutula John Thomas Howell 1933-7-30 11482 Marin At Inverness Comment
  CAS-BOT-BC304432  Grindelia hirsutula John Thomas Howell 1944-9-10 20739 Marin Inverness Comment
  CAS-BOT-BC304433  Grindelia hirsutula John Thomas Howell 1944-7-9 19719 Marin South of Tomales Bay Comment
  CAS-BOT-BC304437  Grindelia hirsutula John Thomas Howell 1939-9-3 15330 Marin Corte Madera Comment
  CAS-BOT-BC304439  Grindelia hirsutula John Thomas Howell 1933-10-8 11710 Marin Pt. Reyes Peninsula 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-BC304461  Grindelia hirsutula John Thomas Howell 1939-7-2 14834 Marin Pirates Cove Comment
  CAS-BOT-BC304470  Grindelia hirsutula John Thomas Howell 1944-6-25 19673 Marin Between McNear's Landing and San Rafael Comment
  CAS-BOT-BC304473  Grindelia hirsutula J. T. Howell 1933-7-23 s.n. Marin Sausalito Hills Comment
  CAS-BOT-BC304479  Grindelia hirsutula John Thomas Howell 1933-7-23 11455 Marin Sausalito Hills Comment
  CAS-BOT-BC304480  Grindelia hirsutula John Thomas Howell 1933-7-30 11463 Marin White's Hills, between Fairfax and Woodacre Comment
  CAS-BOT-BC304487  Grindelia hirsutula John Thomas Howell 1933-7-30 11484 Marin Shores of Bolinas Bay 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-BC304492  Grindelia hirsutula John Thomas Howell 1939-7-2 14830 Marin Ridge between Tennessee Cove and Pirates Cove Comment
  CAS-BOT-BC304493  Grindelia hirsutula John Thomas Howell 1945-7-4 21272 Marin Inverness Ridge Comment
  CAS-BOT-BC304585  Gutierrezia californica John Thomas Howell 1967-9-30 44017 Marin West side of Angel Island Comment
  CAS-BOT-BC305351  Helianthus annuus John Thomas Howell 1946-9-20 23011 Marin Novato Comment
  CAS-BOT-BC306192  Hemizonia congesta subsp. congesta John Thomas Howell 1946-6-13 22046 Marin East of Aurora School at Sonoma Co. line Comment
  CAS-BOT-BC306193  Hemizonia congesta subsp. congesta John Thomas Howell 1945-5-9 20822 Marin Between Hamilton Field and Ignacio Comment
  CAS-BOT-BC306195  Hemizonia congesta subsp. congesta John Thomas Howell 1946-9-8 22989 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-BC309452  Helenium puberulum John Thomas Howell 1945-8-19 21436 Marin Head of Drakes Bay 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-BC310182  Hesperevax sparsiflora var. brevifolia John Thomas Howell 1944-6-4 19566 Marin Near Mt. Vision west of Inverness Comment
  CAS-BOT-BC310218  Hesperevax sparsiflora var. sparsiflora John Thomas Howell 1946-5-12 21775 Marin South end of Carson Ridge Comment
  CAS-BOT-BC310261  Heterotheca grandiflora John Thomas Howell 1946-9-8 22993 Marin Near Ignacio Comment
  CAS-BOT-BC311070  Heterotheca oregona var. rudis John Thomas Howell 1945-9-16 21489 Marin Along railroad north of San Rafael 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-BC314438  Grindelia hirsutula John Thomas Howell 1933-7-30 11488 Marin 7 miles S of Bolinas Bay on road to Sausalito Comment
  CAS-BOT-BC314450  Grindelia hirsutula John Thomas Howell 1945-9-16 21491 Marin Along railroad north of San Rafael Comment
  CAS-BOT-BC314453  Grindelia hirsutula John Thomas Howell 1941-5-18 16189 Marin Stinson Beach Comment
  CAS-BOT-BC314455  Grindelia hirsutula John Thomas Howell 1933-7-23 11457 Marin Sausalito Hills Comment
  CAS-BOT-BC314457  Grindelia hirsutula John Thomas Howell 1946-6-13 22038 Marin Chileno Valley Comment
  CAS-BOT-BC314459  Grindelia hirsutula John Thomas Howell 1944-5-7 19437 Marin Baltimore Park Comment
  CAS-BOT-BC314460  Grindelia hirsutula John Thomas Howell 1939-5-21 14697 Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC314471  Grindelia hirsutula John Thomas Howell 1945-7-15 21292 Marin Ridgecrest Blvd. at Fairfax city limits Comment
  CAS-BOT-BC31496  Carex leptopoda John Thomas Howell 1945-6-3 20924 Marin Shell Beach. Comment
  CAS-BOT-BC31589  Carex luzulina var. luzulina John Thomas Howell 1945-8-19 21422 Marin Near Ledum Swamp. Comment
  CAS-BOT-BC31590  Carex luzulina var. luzulina John Thomas Howell; J. W. Stacey 1936-6-7 12641 Marin Ledum Swamp on road to Point Reyes. Comment
  CAS-BOT-BC31609  Carex luzulina var. ablata John Thomas Howell 1938-6-5 13896 Marin Mt. Tamalpais, Azalea Flat. 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-BC322736  Microseris paludosa John Thomas Howell 1944-5-27 19501 Marin Summit Ave. ridge, Mt. Tamalpais Comment
  CAS-BOT-BC322738  Microseris paludosa John Thomas Howell 1944-5-14 19457 Marin Hills near Salmon Creek School Comment
  CAS-BOT-BC322740  Microseris paludosa John Thomas Howell 1939-6-4 14726 Marin Pt. Reyes Peninsula 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-BC323978  Layia chrysanthemoides John Thomas Howell 1946-4-18 21678 Marin Novato 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-BC324142  Lessingia hololeuca John Thomas Howell 1946-9-8 22992 Marin near Ignacio Comment
  CAS-BOT-BC324149  Lessingia hololeuca John Thomas Howell 1945-9-2 21452 Marin San Rafael Hills Comment
  CAS-BOT-BC324159  Lessingia hololeuca John Thomas Howell 1945-9-16 21484 Marin North of San Rafael & E of Santa Venetia Comment
  CAS-BOT-BC324160  Lessingia hololeuca John Thomas Howell 1947-9-6 24178 Marin Chileno Valley Comment
  CAS-BOT-BC324162  Lessingia hololeuca John Thomas Howell 1946-9-8 22992 Marin Near Ignacio Comment
  CAS-BOT-BC324402  Lasthenia californica subsp. macrantha John Thomas Howell 1930-4-20 4739 Marin Pt. Reyes Comment
  CAS-BOT-BC327984  Pentachaeta alsinoides John Thomas Howell 1947-4-27 23099 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC336653  Acer negundo var. californicum John Thomas Howell 1944-5-7 19443 Marin Larkspur Comment
  CAS-BOT-BC338177  Lasthenia californica John Thomas Howell 1946-4-14 21635 Marin Near Dillons Beach Comment
  CAS-BOT-BC338179  Lasthenia californica John Thomas Howell 1947-4-30 23115 Marin Dillons Beach Comment
  CAS-BOT-BC340181  Jaumea carnosa John Thomas Howell 1945-6-30 21255 Marin Stinson Beach Comment
  CAS-BOT-BC34034  Carex brevicaulis John Thomas Howell 1946-4-21 21683 Marin Near radio station, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC34036  Carex brevicaulis John Thomas Howell 1946-5-16 21850 Marin Angel Island, southeast side. Comment
  CAS-BOT-BC34040  Carex brevicaulis John Thomas Howell 1939-5-28 7380 Marin Pt. Reyes Lighthouse. Comment
  CAS-BOT-BC341498  Lagophylla ramosissima John Thomas Howell 1945-9-2 21453 Marin San Rafael Hills Comment
  CAS-BOT-BC342210  Logfia filaginoides John Thomas Howell 1943-4-11 17899 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC342626  Madia anomala John Thomas Howell 1946-5-25 21932 Marin Greenbrae Hills Comment
  CAS-BOT-BC342630  Madia anomala John Thomas Howell 1946-5-12 21763 Marin Between Fairfax and Country Club Comment
  CAS-BOT-BC342633  Madia anomala John Thomas Howell 1941-6-10 16284 Marin Black Point Comment
  CAS-BOT-BC343084  Madia gracilis John Thomas Howell 1930-7-20 5371 Marin Slopes near Phoenix Lake Comment
  CAS-BOT-BC343086  Madia gracilis John Thomas Howell 1941-6-10 16289 Marin Black Point Comment
  CAS-BOT-BC343088  Madia gracilis John Thomas Howell 1939-6-25 14809 Marin Mt. Tamalpais above Cascade Canyon Comment
  CAS-BOT-BC343606  Madia sativa John Thomas Howell 1946-5-25 21930 Marin Greenbrae Hills Comment
  CAS-BOT-BC343620  Madia sativa John Thomas Howell 1939-7-2 s.n. Marin Elk Valley Comment
  CAS-BOT-BC343716  Madia elegans John Thomas Howell 1944-5-14 19472 Marin Between Salmon Creek and Chileno Valley Comment
  CAS-BOT-BC34391  Carex cusickii John Thomas Howell 1942-7-12 17021 Marin Potrero Meadows, Mt. Tamalpais. Comment
  CAS-BOT-BC34392  Carex cusickii John Thomas Howell 1943-7-11 18283 Marin Potrero Meadows, Mt. Tamalpais. Comment
  CAS-BOT-BC348501  Micropus californicus var. californicus John Thomas Howell 1947-5-4 23134 Marin San Rafael Hills Comment
  CAS-BOT-BC348741  Microseris bigelovii John Thomas Howell 1943-5-22 18150 Marin Fairfax Hills Comment
  CAS-BOT-BC348751  Microseris bigelovii J. T. Howell 1946-5-19 21910 Marin Meadows Club, Fairfax Hills Comment
  CAS-BOT-BC348923  Microseris douglasii subsp. douglasii John Thomas Howell 1945-5-9 20823 Marin Between Hamilton Field and Ignacio Comment
  CAS-BOT-BC348925  Microseris douglasii subsp. douglasii John Thomas Howell 1946-5-12 21785 Marin Carson Ridge Comment
  CAS-BOT-BC348927  Microseris douglasii subsp. douglasii John Thomas Howell 1946-5-12 21825 Marin Carson country Comment
  CAS-BOT-BC348929  Microseris douglasii subsp. douglasii John Thomas Howell 1942-6-21 16979 Marin Carson Ridge Comment
  CAS-BOT-BC348931  Microseris douglasii subsp. douglasii John Thomas Howell 1941-5-25 16221 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC348934  Microseris douglasii subsp. douglasii John Thomas Howell 1945-5-9 20823 Marin Between Hamilton Field and Ignacio Comment
  CAS-BOT-BC348936  Microseris douglasii subsp. douglasii John Thomas Howell 1941-5-25 16221 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC348938  Microseris douglasii subsp. douglasii John Thomas Howell 1946-5-14 21837 Marin Between Barths Retreat and Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC348940  Microseris douglasii subsp. douglasii John Thomas Howell 1942-6-21 16979 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-BC35007  Carex densa John Thomas Howell 1946-5-4 21729 Marin Near Dillon Beach. Comment
  CAS-BOT-BC35008  Carex densa John Thomas Howell 1943-5-2 17935 Marin Big Carson Canyon. Comment
  CAS-BOT-BC35012  Carex densa John Thomas Howell; J. W. Stacey 1936-6-7 12659 Marin Mill Valley. Comment
  CAS-BOT-BC35021  Carex densa John Thomas Howell 1944-4-23 19401 Marin Hills southeast of Kentfield. Comment
  CAS-BOT-BC35022  Carex densa John Thomas Howell 1944-7-2 s.n. Marin Mt. Tamalpais. Potrero Meadow. Comment
  CAS-BOT-BC35024  Carex densa John Thomas Howell 1945-7-1 21263 Marin Tiburon. Comment
  CAS-BOT-BC35025  Carex densa John Thomas Howell 1946-5-4 21715 Marin East of Aurora School at Sonoma County line. Comment
  CAS-BOT-BC35026  Carex densa John Thomas Howell 1946-6-2 s.n. Marin Mt. Tamalpais. Potrero Meadow. Comment
  CAS-BOT-BC35036  Carex densa John Thomas Howell 1938-5-22 13790 Marin San Anselmo Canyon. Comment
  CAS-BOT-BC355185  Lasthenia glaberrima John Thomas Howell 1941-6-10 16305 Marin 9 miles west of Novato Comment
  CAS-BOT-BC355476  Lasthenia glaberrima John Thomas Howell 1946-4-18 21642 Marin Ignacio Comment
  CAS-BOT-BC355478  Lasthenia glaberrima John Thomas Howell 1945-5-9 20827 Marin Between Hamilton Field and Ignacio Comment
  CAS-BOT-BC356726  Pseudognaphalium californicum John Thomas Howell 1939-7-2 14829 Marin Ridge between Tennessee Cove and Pirates Cove Comment
  CAS-BOT-BC356737  Pseudognaphalium californicum John Thomas Howell 1943-5-9 17956 Marin Black Canyon, San Rafael hills Comment
  CAS-BOT-BC356739  Pseudognaphalium californicum John Thomas Howell 1945-7-29 21344 Marin Bolinas Comment
  CAS-BOT-BC357305  Pseudognaphalium microcephalum John Thomas Howell 1945-9-2 21455 Marin San Rafael Hills 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-BC362484  Rafinesquia californica John Thomas Howell 1945-5-6 20808 Marin San Rafael Hills Comment
  CAS-BOT-BC362912  Rigiopappus leptocladus John Thomas Howell 1942-6-21 16989 Marin Carson Ridge Comment
  CAS-BOT-BC362913  Rigiopappus leptocladus John Thomas Howell 1942-7-12 17022 Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC363327  Senecio aronicoides John Thomas Howell 1946-4-21 21685 Marin Down near radio station, Pt. Reyes Peninsula Comment
  CAS-BOT-BC363693  Senecio hydrophilus John Thomas Howell 1946-9-20 23014 Marin Laguna in Chileno Valley Comment
  CAS-BOT-BC363710  Senecio hydrophilus John Thomas Howell 1946-9-20 23014 Marin Laguna in Chileno Valley 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-BC366966  Lasthenia minor John Thomas Howell 1930-4-20 4733 Marin Pt Reyes Comment
  CAS-BOT-BC372296  Layia platyglossa John Thomas Howell 1930-4-20 4735 Marin Pt. Reyes Comment
  CAS-BOT-BC37471  Cardamine californica John Thomas Howell 1949-4-6 25297 Marin Low field, Ingacio. Comment
  CAS-BOT-BC37472  Cardamine californica John Thomas Howell 1939-4-23 14612 Marin Mount Tamalpais. Corte Madera Ridge. Comment
  CAS-BOT-BC374826  Stebbinsoseris heterocarpa John Thomas Howell 1946-5-12 s.n. Marin Fairfax Country Club Comment
  CAS-BOT-BC374828  Stebbinsoseris heterocarpa John Thomas Howell 1947-4-27 23078 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC374830  Stebbinsoseris heterocarpa John Thomas Howell 1939-5-14 14663 Marin Between Phoenix Lake and Lake Lagunitas Comment
  CAS-BOT-BC374832  Stebbinsoseris heterocarpa John Thomas Howell 1944-5-27 19502 Marin Summit Ave. ridge, Mt. Tamalpais Comment
  CAS-BOT-BC375221  Stephanomeria elata John Thomas Howell 1945-7-15 21296 Marin Fairfax Hills Comment
  CAS-BOT-BC375825  Stephanomeria virgata John Thomas Howell 1945-7-15 21295 Marin Fairfax Hills Comment
  CAS-BOT-BC375827  Stephanomeria virgata John Thomas Howell 1939-10-15 15378 Marin Fairfax Comment
  CAS-BOT-BC381915  Uropappus lindleyi John Thomas Howell 1947-4-27 23082 Marin Bald Mt. west of San Anselmo Comment
  CAS-BOT-BC381917  Uropappus lindleyi John Thomas Howell 1943-5-9 17984 Marin San Rafael hills Comment
  CAS-BOT-BC381919  Uropappus lindleyi John Thomas Howell 1944-7-9 19702 Marin Inverness Ridge Comment
  CAS-BOT-BC381922  Uropappus lindleyi John Thomas Howell 1943-5-9 17984 Marin San Rafael Hills Comment
  CAS-BOT-BC381923  Uropappus lindleyi John Thomas Howell 1945-5-6 20802 Marin San Rafael Hills Comment
  CAS-BOT-BC384485  Silene antirrhina John Thomas Howell 1943-5-9 17983 Marin San Rafael hills Comment
  CAS-BOT-BC384487  Silene antirrhina John Thomas Howell 1946-5-12 21795 Marin Carson Ridge Comment
  CAS-BOT-BC384778  Cardionema ramosissimum John Thomas Howell 1945-6-3 20915 Marin Near Inverness Comment
  CAS-BOT-BC38754  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1956-2-26 30917 Marin Along old railroad grade in W. Fk. of Fern Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC38755  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1941-6-8 16265 Marin Hills NE of San Rafael Comment
  CAS-BOT-BC388984  Silene laciniata subsp. californica John Thomas Howell 1946-7-7 22209 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC390345  Spergularia macrotheca var. macrotheca John Thomas Howell 1944-5-28 19506 Marin Manzanita Comment
  CAS-BOT-BC390347  Spergularia macrotheca var. macrotheca John Thomas Howell 1945-6-3 20938 Marin Shell Beach Comment
  CAS-BOT-BC390363  Spergularia macrotheca var. macrotheca John Thomas Howell 1944-6-25 19668 Marin Between McNear's Landing and San Rafael 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-BC390821  Spergularia marina John Thomas Howell 1944-9-24 20757 Marin East side Bolinas Lagoon Comment
  CAS-BOT-BC391878  Anemone grayi John Thomas Howell 1940-5-12 15413 Marin Lagunitas Creek Comment
  CAS-BOT-BC399795  Thalictrum polycarpum John Thomas Howell 1946-7-7 22216 Marin Potrero Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC400506  Asarum caudatum John Thomas Howell 1946-4-14 21611 Marin Near Tomales Comment
  CAS-BOT-BC401396  Hypericum scouleri John Thomas Howell 1942-7-12 17029 Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC40228  Caulanthus lasiophyllus John Thomas Howell 1945-6-3 20934 Marin Shell Beach. 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-BC40230  Caulanthus lasiophyllus John Thomas Howell 1966-5-25 41543 Marin Gully just north of garden area. John Thomas Howell Botanical Garden, Tiburon. 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-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-BC40799  Erysimum capitatum John Thomas Howell 1944-5-14 19461 Marin Salmon Creek Canyon. Comment
  CAS-BOT-BC410140  Arceuthobium occidentale John Thomas Howell 1944-7-9 19686 Marin Inverness Ridge Comment
  CAS-BOT-BC418878  Persicaria hydropiperoides John Thomas Howell 1945-10-14 s.n. Marin Olema Marshes Comment
  CAS-BOT-BC419020  Persicaria lapathifolia John Thomas Howell 1939-9-3 15337 Marin Near Black Point 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-BC422806  Papaver californicum John Thomas Howell 1946-5-30 21962 Marin Little Carson Canyon Comment
  CAS-BOT-BC427999  Dudleya caespitosa John Thomas Howell 1933-7-23 11460 Marin Sausalito Hills Comment
  CAS-BOT-BC428000  Dudleya caespitosa John Thomas Howell 1939-7-2 14824 A Marin Elk Valley Comment
  CAS-BOT-BC428002  Dudleya caespitosa John Thomas Howell 1946-6-30 22151 Marin Rodeo Lagoon Comment
  CAS-BOT-BC428003  Dudleya caespitosa John Thomas Howell 1939-7-2 14833 A Marin Pirates Cove Comment
  CAS-BOT-BC428129  Dudleya cymosa subsp. cymosa John Thomas Howell 1943-5-22 18132 Marin Fairfax hills Comment
  CAS-BOT-BC428301  Dudleya farinosa John Thomas Howell 1939-5-21 14692 A Marin South end of Tiburon Peninsula Comment
  CAS-BOT-BC428814  Micranthes californica John Thomas Howell 1947-3-2 s.n. Marin Bald Mt. on Yolanda Route Comment
  CAS-BOT-BC430615  Lithophragma affine John Thomas Howell 1946-5-14 21831 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC433489  Rumex fueginus John Thomas Howell 1946-8-23 22882 Marin Pierce Pt. road, Pt. Reyes Peninsula Comment
  CAS-BOT-BC433935  Rumex salicifolius John Thomas Howell 1941-6-8 16246 Marin Hills ne. of San Rafael Comment
  CAS-BOT-BC434102  Rumex transitorius John Thomas Howell 1945-7-29 21335 Marin Bolinas Comment
  CAS-BOT-BC434114  Rumex transitorius John Thomas Howell 1939-11-5 15384 Marin Sausalito Comment
  CAS-BOT-BC434121  Rumex transitorius John Thomas Howell 1945-7-1 21262 Marin Tiburon Comment
  CAS-BOT-BC435651  Lithophragma heterophyllum John Thomas Howell 1944-4-13 19372 Marin Big Rock Ridge west of Hamilton Field Comment
  CAS-BOT-BC436405  Calystegia subacaulis John Thomas Howell 1944-4-23 19410 Marin SE of Kentfield Comment
  CAS-BOT-BC436407  Calystegia subacaulis John Thomas Howell 1947-5-21 23193 Marin Tiburon Comment
  CAS-BOT-BC437003  Acaena pinnatifida var. californica John Thomas Howell 1925-4-5 919 Marin Pipeline Trail Comment
  CAS-BOT-BC437680  Asclepias speciosa John Thomas Howell 1945-6-24 21244 Marin Lagunitas Meadows, Mount Tamalpais Comment
  CAS-BOT-BC438424  Calandrinia ciliata John Thomas Howell 1946-4-13 21605 Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC439220  Claytonia exigua subsp. exigua John Thomas Howell 1940-5-12 15432 Marin South end of Carson Ridge Comment
  CAS-BOT-BC439223  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-17 s.n. Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC439229  Claytonia exigua subsp. exigua John Thomas Howell 1939-4-23 14615 Marin Corte Madera Ridge, Mt. Tamalpais 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-BC439352  Claytonia gypsophiloides John Thomas Howell 1945-4-29 20795 Marin Fairfax Hills Comment
  CAS-BOT-BC443589  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1939-4-23 14614 Marin Corte Madera Ridge, Mt. Tamalpais Comment
  CAS-BOT-BC443592  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1946-4-13 21604 Marin Near Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC451609  Lilaea scilloides John Thomas Howell 1946-5-4 21720 Marin East of Aurora School at Sonoma Co. line Comment
  CAS-BOT-BC451611  Lilaea scilloides John Thomas Howell 1944-5-28 19529 Marin Between Almonte and Mill Valley Comment
  CAS-BOT-BC451824  Triglochin maritima John Thomas Howell 1945-8-19 21435 Marin At head of Drakes Bay Comment
  CAS-BOT-BC451832  Triglochin maritima John Thomas Howell 1944-4-23 19393 Marin Escalle salt marsh Comment
  CAS-BOT-BC451835  Triglochin maritima John Thomas Howell 1957-9-15 32960 Marin Larkspur Comment
  CAS-BOT-BC451846  Triglochin maritima John Thomas Howell 1944-5-7 19449 Marin Larkspur salt marsh Comment
  CAS-BOT-BC451851  Triglochin maritima John Thomas Howell 1945-6-30 21256 Marin Stinson Beach Comment
  CAS-BOT-BC451854  Triglochin maritima John Thomas Howell 1944-5-7 19447 Marin Larkspur salt marsh Comment
  CAS-BOT-BC453526  Fragaria chiloensis John Thomas Howell 1926-2-21 1636 Marin Ocean bluffs at Point Reyes Comment
  CAS-BOT-BC45634  Quercus agrifolia John Thomas Howell 1947-3-23 23048 Marin Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC45635  Quercus agrifolia John Thomas Howell 1941-4-17 s.n. Marin windswept hills above Tiburon Comment
  CAS-BOT-BC45869  Limnanthes douglasii var. sulphurea John Thomas Howell 1940-5-20 15493 Marin Point Reyes Comment
  CAS-BOT-BC46782  Arctostaphylos uva-ursi John Thomas Howell 1949-5-15 25319 Marin Inverness Ridge west of Inverness 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-BC46842  Arctostaphylos virgata John Thomas Howell 1944-4-2 19362 Marin Bolinas Ridge Comment
  CAS-BOT-BC46854  Arctostaphylos virgata John Thomas Howell 1930-3-9 4554 Marin Road to Point Reyes Comment
  CAS-BOT-BC47437  Arctostaphylos viscida subsp. viscida John Thomas Howell 1944-12-10 20770 Marin North rim of Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC47772  Ceanothus John Thomas Howell 1930-12-28 5719 Marin Mt. Tamalpais above Mill Valley Comment
  CAS-BOT-BC48439  Ceanothus cuneatus var. ramulosus John Thomas Howell 1940-5-26 15524 Marin San Anselmo Canyon Comment
  CAS-BOT-BC49147  Ceanothus cuneatus var. ramulosus John Thomas Howell 1941-6-29 16345 Marin Rock Spring Trail, Mt. Tamalpais Comment
  CAS-BOT-BC49149  Ceanothus cuneatus var. ramulosus John Thomas Howell 1938-6-19 13926 Marin Rattlesnake, Mt. Tamalpais Comment
  CAS-BOT-BC49150  Ceanothus cuneatus var. ramulosus John Thomas Howell 1938-6-19 13927 Marin Rattlesnake, 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-BC49988  Ceanothus gloriosus var. porrectus John Thomas Howell 1943-7-4 18265 Marin near Ledum Swamp Comment
  CAS-BOT-BC49989  Ceanothus gloriosus var. porrectus John Thomas Howell 1944-6-4 19535 Marin Inverness Ridge 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-BC51418  Ceanothus masonii John Thomas Howell 1944-4-2 19364 Marin Bolinas Ridge Comment
  CAS-BOT-BC52937  Ceanothus thyrsiflorus John Thomas Howell 1930-12-28 5714 Marin Lower slopes of Mt. Tamalpais, Mill Valley Comment
  CAS-BOT-BC55366  Hirschfeldia incana John Thomas Howell 1942-6-21 17002 Marin Fairfax. Comment
  CAS-BOT-BC57333  Equisetum laevigatum John Thomas Howell 1940-5-26 15546 Marin Little Carson 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-BC57906  Equisetum arvense John Thomas Howell 1944-5-28 19516 Marin Between Manzanita and Almonte. Comment
  CAS-BOT-BC58885  Gaultheria shallon John Thomas Howell 1947-5-8 23144 Marin Sausalito Comment
  CAS-BOT-BC59901  Rhamnus crocea John Thomas Howell 1933-4-30 11188 Marin N. side of Mt. Tamalpais. Comment
  CAS-BOT-BC61167  Streptanthus batrachopus John Thomas Howell 1939-5-14 14681 Marin East of Collier Spring, Mount Tamalpais. Comment
  CAS-BOT-BC61169  Streptanthus batrachopus John Thomas Howell 1942-6-21 16994 Marin Carson Ridge. Comment
  CAS-BOT-BC61171  Streptanthus batrachopus John Thomas Howell 1946-6-23 22122 Marin Carson Ridge. Comment
  CAS-BOT-BC61172  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-BC61176  Streptanthus batrachopus John Thomas Howell 1958-6-28 33635 Marin South side of Alpine Lake west of Bon Tempe Dam, Mount Tamalpais. Comment
  CAS-BOT-BC62778  Quercus berberidifolia John Thomas Howell 1944-11-12 20767 Marin Black Canyon, San Rafael 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-BC65856  Aspidotis carlotta-halliae John Thomas Howell 1962-2-5 37076 Marin on Troop 80 Trail just east of Rattlesnake Camp, Mt. Tamalpais Comment
  CAS-BOT-BC65861  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-BC68118  Athyrium filix-femina subsp. cyclosorum John Thomas Howell 1950-10-11 27468 Marin Bear Valley Comment
  CAS-BOT-BC68119  Athyrium filix-femina subsp. cyclosorum John Thomas Howell 1950-10-11 27467 A Marin Bear Valley Comment
  CAS-BOT-BC68354  Azolla filiculoides John Thomas Howell 1946-7-4 22183 Marin East of Aurora School at Sonoma Co. line. Comment
  CAS-BOT-BC68355  Azolla filiculoides John Thomas Howell 1946-6-30 22170 Marin Rodeo Lagoon Comment
  CAS-BOT-BC69179  Pellaea andromedifolia J. T. Howell 1966-4-18 41516 Marin just north of John Thomas Howell Botanical Garden, Tiburon 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-BC73690  Ulmus procera John Thomas Howell 1941-6-8 s.n. Marin San Rafeal Comment
  CAS-BOT-BC7405  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-BC74547  Rorippa curvisiliqua John Thomas Howell 1947-6-18 23267 Marin Laguna, Chileno Valley. Comment
  CAS-BOT-BC7642  Bolboschoenus maritimus John Thomas Howell 1945-8-19 21438 Marin Head of Drakes Bay. Comment
  CAS-BOT-BC7647  Scirpus maritimus John Thomas Howell 1945-5-20 20874 Marin Tiburon. Comment
  CAS-BOT-BC76854  Polypodium calirhiza John Thomas Howell 1966-4-6 41459 Marin Tiburon - John Thomas Howell Botanical Garden 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-BC82453  Arnica discoidea John Thomas Howell 1950-6-4 26621 Marin Blithedale Canyon, Mill Valley Comment
  CAS-BOT-BC83443  Ranunculus lobbii John Thomas Howell 1946-4-18 21640 Marin Ignacio. Comment
  CAS-BOT-BC8365  Lupinus marinensis John Thomas Howell 1938-5-22 13787 Marin San Anselmo Canyon Comment
  CAS-BOT-BC85476  Cupressus sargentii John Thomas Howell 1926-2-28 1656 Marin Mt. Tamalpais Comment
  CAS-BOT-BC86609  Quercus douglasii John Thomas Howell 1941-6-8 16253 Marin Hills NE of San Rafael Comment
  CAS-BOT-BC87243  Streptanthus glandulosus subsp. niger John Thomas Howell 1943-5-15 18096 Marin Tiburon peninsula. Comment
  CAS-BOT-BC87257  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-5-22 13791 Marin San Anselmo Canyon. Comment
  CAS-BOT-BC87258  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-5-22 13791 Marin San Anselmo Canyon. Comment
  CAS-BOT-BC87259  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-6-9 13907 Marin Mount Tamalpais. Near Rock Spring. Comment
  CAS-BOT-BC87260  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-6-9 13907 Marin Mount Tamalpais. Near Rock Spring. Comment
  CAS-BOT-BC87276  Streptanthus glandulosus subsp. secundus John Thomas Howell 1938-7-3 13945 Marin At head of Lucas Valley. Comment
  CAS-BOT-BC87280  Streptanthus glandulosus subsp. secundus John Thomas Howell 1946-6-2 21984 Marin Mount Tamalpais. Rocky Ridge Fire Trail. Comment
  CAS-BOT-BC88483  Thysanocarpus curvipes John Thomas Howell 1946-3-24 21571 Marin Near country club, Fairfax Hills. 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-BC9007  Delphinium decorum John Thomas Howell 1940-5-20 15500 Marin Pt. Reyes Comment
  CAS-BOT-BC9069  Aegilops triuncialis John Thomas Howell 1953-7-5 29107 Marin East Peak, Mt. Tamalpais Comment
  CAS-BOT-BC90878  Artemisia pycnocephala John Thomas Howell 1948-6-6 24332 Marin Bolinas Bay Sand Spit Comment
  CAS-BOT-BC91158  Umbellularia californica John Thomas Howell 1960-2-14 35123 Marin Lower part of Steep Ravine, Mount Tamalpais. Comment
  CAS-BOT-BC91776  Platystemon californicus John Thomas Howell 1946-3-24 21580 Marin Carson County. Comment
  CAS-BOT-BC91780  Platystemon californicus John Thomas Howell 1940-5-20 15498 Marin Point Reyes. Comment
  CAS-BOT-BC92939  Ribes californicum var. californicum John Thomas Howell 1940-5-26 15548 Marin San Anselmo Canyon. Comment
  CAS-BOT-BC94235  Quercus X eplingii John Thomas Howell 1946-5-19 21904 Marin near Camp Lilienthal, Fairfax Hills Comment
  CAS-BOT-BC94352  Quercus garryana John Thomas Howell 1947-5-18 s.n. Marin Fairfax Hills Comment
  CAS-BOT-BC94355  Quercus garryana John Thomas Howell; John Tucker 1947-8-31 24177 Marin Black Canyon, San Rafael Hills Comment
  CAS-BOT-BC94356  Quercus garryana John Thomas Howell 1945-7-15 21301 Marin Fairfax Hills near Camp Lilienthal 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
  CAS-BOT-BC99422  Baccharis pilularis John Thomas Howell 1933-10-8 11702 Marin Pt. Reyes Peninsula Comment
  CDA1728  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin Low field between Hamilton Field and Ignacio. 0 Comment
  CDA2184  Holcus lanatus J. T. Howell 1945-7-29 21355 Marin Bolinas. 0 Comment
  CDA24129  Spergularia macrotheca J. T. Howell 1944-4-23 19397 Marin Pacific coast; Escalle. 0 Comment
  CDA2530  Stenotaphrum secundatum J. T. Howell 1945-7-2 21330 Marin West of Mill Valley on road to Muir Woods. 0 Comment
  CDA3326  Mirabilis jalapa J. T. Howell 1959-11-4 35102 Marin Sausalito . 0 Comment
  CDA3438  Spergularia villosa J. T. Howell 1944-6-25 19643 Marin Santa Venetia . Comment
  CDA4199  Lotus uliginosus J. T. Howell 1944-7-3 19856 Marin Between Mill Valley and head of salt marshes. 0 Comment
  CDA4371  Erodium brachycarpum J. T. Howell 1947-4-23 23075 Marin Point Reyes Peninsula, on east side of Drakes Estero. 0 Comment
  CDA4424  Pelargonium grossularioides J. T. Howell 1944-7-23 19842 Marin San Francisco Bay region; San Rafael. Comment
  CDA5683  Verbena incompta J. T. Howell 1943-9-5 19323 Marin San Francisco Bay Region; Southern part of Mill Valley. Comment
  CDA7510  Lactuca saligna J. T. Howell 1943-9-5 19324 Marin San Francisco Bay Region; Southern part of Mill Valley. Comment
  HSC90928  Agrostis hendersonii Thomas J. Howell 1947-4-23 23062 Marin E side of Drakes Estero W of Mt. Vision, Pt. Reyes Peninsula Comment
  JEPS30760  Cakile maritima John Thomas Howell 1943-10-3 19333 Marin just above high tide line Muir Beach Comment
  JEPS30811  Rubus discolor John Thomas Howell 1943-8-29 19311 Marin Summit (Avenue) Ridge Mill Valley; , Summit (Avenue) Ridge Comment
  JEPS30816  Pelargonium grossularioides John Thomas Howell 1944-7-23 19842 Marin San Rafael 60 Comment
  JEPS37903  Plantago maritima var. juncoides John Thomas Howell 1945-7-8 21285 Marin San Antonio Comment
  JEPS3919  Senecio minimus John Thomas Howell 1944-7-30 19857 Marin Almonte Comment
  JEPS3932  Lactuca saligna John Thomas Howell 1943-9-5 19324 Marin in s part Mill Valley 7 Comment
  JEPS53270  Cakile edentula John Thomas Howell 1926-11-22 2256 Marin on Bolinas Beach just to w of opening into Bolinas Lagoon; Bolinas Beach Comment
  JEPS58882  Plectritis brachystemon John Thomas Howell 1948-5-31 24314 Marin Nicasio Comment
  JEPS58883  Plectritis macrocera John Thomas Howell 1946-4-13 21599 Marin Summit meadow to Rock Spring, Mount Tamalpais Rock Spring; Mount Tamalpais 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
  JEPS58917  Castilleja ambigua subsp. ambigua John Thomas Howell 1944-5-21 19394 Marin Lagunitas Meadow Mt. Tamalpais 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
  JEPS58924  Triphysaria floribunda John Thomas Howell 1947-4-23 23074 Marin Drakes Estero w Mt. Vision; Drakes Estero w of Mt. Vision Comment
  JEPS58925  Triphysaria eriantha subsp. eriantha John Thomas Howell 1946-4-14 21637 Marin near Laguna School (Chileno Valley); Chileno Valley 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
  JEPS58928  Mimulus microphyllus John Thomas Howell 1940-5-12 15435 Marin s end Carson Ridge Comment
  JEPS58932  Mimulus nasutus John Thomas Howell 1947-4-27 23092 Marin w San Anselmo; Bald Mt. Comment
  JEPS58933  Mimulus rattanii John Thomas Howell 1946-7-7 22196 Marin s Barths Retreat; Mt. Tamalpais Comment
  JEPS58937  Cordylanthus pilosus subsp. pilosus John Thomas Howell 1942-9-13 17865 Marin Fairfax Comment
  JEPS58942  Castilleja attenuata John Thomas Howell 1943-4-11 17917 Marin Black Canyon San Rafael Hills Comment
  JEPS58947  Nuttallanthus texanus John Thomas Howell 1943-4-11 17916 Marin San Rafael Hills, Black Canyon Black Canyon; San Rafael Hills, Black Canyon Comment
  JEPS58953  Castilleja minor subsp. spiralis John Thomas Howell 1947-6-15 23249 Marin near Bootjack cypresses; Mt. Tamalpais Comment
  JEPS62610  Castilleja affinis subsp. affinis John Thomas Howell 1969-5-5 45567 Marin near Paradise Cove; Tiburon Peninsula Comment
  LA206697  Navarretia mellita John Thomas Howell; 1930-7-20 5378 Marin near Phoenix Lake Comment
  LA208242  Rubus ursinus John Thomas Howell; 1938-5-22 13788 Marin San Anselmo Canyon Comment
  NY162681  Blennosperma nanum var. robustum J. T. Howell 1947-5-14 23153 Marin Point Reyes Peninsula above McClure Beach Comment
  NY327617  Agrostis aristiglumis J. T. Howell 1947-5-14 1411 Marin Drakes Estero, WNW of Mount Vision Comment
  NY679488  Abronia umbellata J. T. Howell 1947-5-14 23157 Marin McClure Beach. Comment
  POM179706  Cirsium andrewsii J. T. Howell 1930-6-22 5321 Marin Valley above Rodeo Lagoon Comment
  POM180790  Castilleja foliolosa J. T. Howell 1930-7-20 5383 Marin Mt. Tamalpais on se. side along Wheeler Trail. Comment
  POM180791  Arctostaphylos glandulosa var. cushingiana J. T. Howell 1930-7-20 5376 Marin Hills just north of Pheonix Lake. Comment
  POM181001  Madia gracilis J. T. Howell 1930-7-20 5371 Marin Near Phoenix Lake 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
  POM203148  Horkelia marinensis J. T. Howell 1933-10-8 11703 Marin Point Reyes Peninsula Comment
  POM203149  Baccharis pilularis J. T. Howell 1933-10-8 11702 Marin Pt. Reyes Peninsula Comment
  POM203150  Baccharis pilularis J. T. Howell 1933-10-8 11702 Marin Point Reyes Peninsula Comment
  POM203966  Carex globosa J. T. Howell 1933-4-30 11193 Marin North side of Mt. Tamalpais. Comment
  POM203968  Vulpia bromoides J. T. Howell 1933-4-30 11187 Marin North side of Mt. Tamalpais. Comment
  POM203970  Cordylanthus maritimus subsp. palustris J. T. Howell 1933-7-30 11480 Marin Inverness. 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
  POM303729  Rubus discolor J. T. Howell 1943-8-29 19311 Marin extensive brambles, generally in partly shaded draws, summit Ridge Mill Valley, Marin Comment
  RSA101639  Lessingia hololeuca John T. Howell 1945-9-2 21452 Marin San Rafael Hills Comment
  RSA1063  Arctostaphylos hookeri subsp. montana J. T. Howell 1927-8-22 677 / 251 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
  RSA118077  Setaria viridis J. T. Howell 1954-9-23 30110 Marin Ross, Milton H. Esberg place. Comment
  RSA121001  Quercus chrysolepis J. T. Howell 1956-9-23 31878 Marin Near Laurel Dell, Mt. Tamalpais. Comment
  RSA126183  Sanguisorba minor J. T. Howell 1949-6-7 25341 Marin Aurora School, NW Marin. Comment
  RSA126197  Sagina maxima subsp. crassicaulis J. T. Howell 1946-5-4 21751 Marin Dillon's Beach. 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
  RSA126398  Leymus pacificus J. T. Howell 1947-6-4 23222 Marin Dunes beyond radio station, Pt. Reyes Peninsula. Comment
  RSA126399  Andropogon glomeratus J. T. Howell 1939-10-15 s.n. Marin Near Liberty Camp. Comment
  RSA126402  Calamagrostis rubescens J. T. Howell 1943-5-30 18184 Marin Summit Arena, Ridge above Mill Valley, Mt. Tamalpais. Comment
  RSA126407  Poa secunda J. T. Howell 1943-4-11 17897 Marin Black Canyon, San Rafeal Hills Comment
  RSA126461  Agrostis capillaris J. T. Howell 1945-6-12 20955 Marin Near radio station, Pt. Reyes Peninsula. Comment
  RSA126464  Bromus carinatus J. T. Howell 1941-8-25 s.n. Marin Mt. Tamalpais Comment
  RSA126465  Bromus laevipes J. T. Howell 1945-6-12 s.n. Marin White Hill Comment
  RSA126466  Bromus madritensis J. T. Howell 1945-5-27 s.n. Marin Mount Tamalpais Comment
  RSA126469  Bromus vulgaris J. T. Howell 1945-7-4 21268 Marin California Academy of Sciences; Inverness Ridge Comment
  RSA126470  Bromus diandrus J. T. Howell 1945-6-12 s.n. Marin Lagunitas Comment
Read comments May 1 2011
  RSA126471  Agrostis gigantea J. T. Howell 1941-7-6 16371 Marin Lake Lagunitas Meadows Comment
  RSA126474  Deschampsia elongata J. T. Howell 1945-6-3 20925 Marin Shell Beach. Comment
  RSA126475  Beckmannia syzigachne J. T. Howell 1946-6-13 22019 Marin Hicks Valley Comment
  RSA126476  Cynosurus echinatus J. T. Howell 1942-6-7 s.n. Marin San Anselmo Canyon. Comment
  RSA126478  Agrostis hallii J. T. Howell 1944-6-4 19560 Marin Mt. Vision west of Inverness Comment
  RSA126480  Polypogon viridis J. T. Howell 1943-6-6 s.n. Marin Mill Valley steps. Comment
  RSA126481  Agrostis pallens J. T. Howell 1943-7-11 s.n. Marin Potrero Meadow, Mt. Tamalpais Comment
  RSA127049  Polygonum aviculare J. T. Howell 1944-5-7 19428 Marin Greenbrae. 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
  RSA127059  Lithocarpus densiflorus var. densiflorus J. T. Howell 1947-5-25 23206 Marin Berry Trail, Mt. Tamalpais. Comment
  RSA127061  Quercus X subconvexa J. T. Howell, J. M. Tucker 1947-8-31 24175 Marin Ridgecrest road north of AlpineLake. Comment
  RSA127065  Juncus bolanderi J. T. Howell 1943-7-4 18259 Marin Ledum Swamp on road to Point Reyes, Point Reyes Peninsula. Comment
  RSA127066  Luzula comosa J. T. Howell 1949-5-15 25317 Marin Inverness Ridge, west of Inverness. Comment
Read comments Feb 24 2012
  RSA127071  Juncus phaeocephalus var. paniculatus J. T. Howell 1945-6-24 s.n. Marin Lagunitas andeus?, Mt. Tamalpais. Comment
  RSA127074  Eriogonum caninum J. T. Howell 1944-7-7 19680 Marin Serpentine above Camp Handy. Mt. Tamalpais. Comment
  RSA127088  Grindelia hirsutula J. T. Howell 1946-6-20 22097 Marin Between Muir Beach and Stinson Beach. Comment
  RSA127089  Grindelia hirsutula J. T. Howell 1946-6-13 22038 Marin Chileno Valley. Comment
  RSA127094  Polygonum fowleri J. T. Howell 1945-7-8 21282 Marin Burdell Station Comment
  RSA127116  Grindelia hirsutula var. davyi J. T. Howell 1946-11-3 23033 Marin Hamilton Field. Comment
  RSA127226  Vulpia microstachys var. pauciflora J. T. Howell 1946-5-14 21839 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
  RSA127232  Leymus pacificus J. T. Howell 1946-7-4 22177 Marin Dillon's Beach. Comment
  RSA127233  Elymus X gouldii J. T. Howell 1946-6-30 22143 Marin Rodeo Lagoon Comment
  RSA127237  Vulpia octoflora J. T. Howell 1946-5-12 21778 Marin Carson Ridge. Comment
  RSA127242  Rhynchospora californica J. T. Howell 1945-8-19 s.n. Marin Near Ledum Swamp, Point Reyes Peninsula Comment
  RSA127252  Amaranthus palmeri J. T. Howell 1942-9-13 17868 Marin Fairfax Comment
  RSA127267  Melica harfordii J. T. Howell 1943-5-30 18185 Marin Wheeler Trail, Mt. Tamalpais. Comment
  RSA127272  Glyceria declinata J. T. Howell 1946-6-20 22106 Marin Four miles north of Bolinas. Comment
  RSA127273  Hordeum depressum J. T. Howell 1947-4-13 23057 Marin Tiburon Peninsula Comment
  RSA127277  Setaria parviflora J. T. Howell 1946-9-8 22997 Marin Phoenix Lake, Mt. Tamalpais. Comment
  RSA127382  Nassella lepida J. T. Howell 1943-5-9 17956 -A Marin Black Canyon, San Rafael Hills Comment
  RSA127383  Nassella lepida J. T. Howell 1946-5-16 21896 Marin North side of Angel Island Comment
  RSA127567  Sidalcea hickmanii subsp. viridis J. T. Howell 1954-6-23 s.n. Marin Carson Ridge Comment
  RSA128314  Sagina decumbens subsp. occidentalis J. T. Howell 1946-4-21 21689 Marin Dunes near radio station, Pt. Reyes Peninsula Comment
  RSA128315  Lupinus albifrons var. collinus J. T. Howell 1947-5-25 23196 Marin Simmons Trail, Mt. Tamalppais. Comment
  RSA128316  Lupinus arboreus var. arboreus J. T. Howell 1946-6-9 22014 A Marin Pierce Ranch, north of Point Reyes Peninsula. Comment
  RSA128318  Cytisus proliferus J. T. Howell 1947-5-4 23133 Marin San Rafael Hills. Comment
  RSA128947  Micropus amphibolus J. T. Howell 1943-4-11 17921 Marin Black Canyon, San Rafeal Hills Comment
  RSA147  Chrysolepis chrysophylla J. T. Howell 1927-8-22 673 Marin South side of Mt. Tamalpais. 213 Comment
  RSA168  Quercus parvula var. shrevei J. T. Howell 1927-8-22 672 Marin South side of Mt. Tamalpais. 213 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
  RSA201453  Phacelia californica J. T. Howell 1947-6-18 23252 Marin Salmon Creek - Chileno Valley summit. Comment
  RSA216182  Trifolium bifidum var. decipiens J. T. Howell 45556 Marin San Rafael Hills near McNears Beach. Comment
  RSA216187  Agrostis exarata J. T. Howell 1966-7-20 41992 Marin Area adjacent to the John Thomas Howell Botanical Garden, Tiburon. Comment
  RSA22082  Lupinus tidestromii J. T. Howell 1939-6-4 14729 Marin Point Reyes Peninsula Comment
  RSA22132  Festuca californica var. californica J. T. Howell 1938-6-19 13920 Marin Bootjack. Mt. Tamalpais. Comment
  RSA22161  Phalaris californica J. T. Howell, Alice Eastwood 1938-5-8 5498 Marin Head of Nicasio Creek Comment
  RSA244  Eriogonum luteolum J. T. Howell 1927-8-22 675 Marin Rock Spring Trail, Mt Tamalpais 549 Comment
  RSA26544  Phacelia californica J. T. Howell 1930-7-20 5384 Marin Rocky slope of Mt. Tamalpais on south-east side. Comment
  RSA299145  Horkelia marinensis J. T. Howell, Catherine Best, Wilma Follette, Gordon True 1980-6-19 53719 Marin Near Abbott's Lagoon, Point Reyes Peninsula. Comment
  RSA31382  Epilobium ciliatum subsp. ciliatum J. T. Howell 1939-7-2 14822 Marin Elk Valley 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
  RSA31409  Camissonia strigulosa J. T. Howell 1946-5-4 21742 Marin Dillon Beach. Comment
  RSA31415  Clarkia amoena subsp. amoena J. T. Howell 1946-6-9 22012 Marin Pierce Ranch, northern Point Reyes Peninsula Comment
  RSA32135  Stenotaphrum secundatum J. T. Howell 1945-7-22 21330 Marin Clay slope and flat W of Mill Valley on road to Muir Woods Comment
  RSA32273  Streptanthus glandulosus subsp. pulchellus J. T. Howell 1946-5-12 21815 Marin Carson Country Comment
  RSA32348  Quercus garryana var. garryana J. T. Howell 1945-7-15 21301 Marin Fairfax Hills near Camp Lilienthal. Comment
  RSA32481  Astragalus pycnostachyus var. pycnostachyus J. T. Howell 1945-8-19 21433 Marin Head of Drakes Bay. Comment
  RSA35303  Ribes victoris J. T. Howell 1943-3-7 17886 Marin Hills NE of San Rafeal Comment
  RSA35304  Carex ovalis J. T. Howell 1944-6-4 19567 Marin Mt. Vision west of Inverness Comment
  RSA35306  Ceanothus masonii J. T. Howell 1944-4-2 s.n. Marin Bolinas Ridge Comment
  RSA383649  Ruppia maritima J. T. Howell 1933-7-30 11469 Marin Head of Tomales Bay Comment
  RSA414924  Acacia dealbata J. T. Howell 1943-8-29 19312 Marin Summit ridge above Mill Valley. 152 Comment
  RSA44353  Lathyrus jepsonii subsp. californicus J. T. Howell 1947-5-18 23174 Marin Fairfax Hills. Comment
  RSA46396  Lithocarpus densiflorus var. densiflorus J. T. Howell 1947-1-12 s.n. Marin Above Muir Woods, south side of Mt. Tamalpais. Comment
  RSA46397  Arctostaphylos virgata J. T. Howell 1947-1-12 s.n. Marin Above Muir Woods, south side of Mt. Tamalpais. Comment
  RSA46398  Arctostaphylos canescens subsp. canescens J. T. Howell 1947-1-12 s.n. Marin Above Muir Woods, south side of Mt. Tamalpais. Comment
  RSA51219  Grindelia stricta var. angustifolia J. T. Howell 1949-10-9 26300 Marin San Francisco Bay at N end of Tiburon 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
  RSA51442  Melica geyeri J. T. Howell 1947-5-18 23185 Marin Lagunitas Meadows. Comment
  RSA52011  Carex brevicaulis J. T. Howell 1944-3-26 19345 Marin Above Ledum Swamp, Inverness Ridge. 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
  RSA52170  Carex praegracilis J. T. Howell 1946-6-13 22043 Marin East of Aurora School at Sonoma County line. Comment
  RSA52267  Carex buxbaumii J. T. Howell 1947-6-4 s.n. Marin Near radio station, Point Reyes Peninsula Comment
  RSA52333  Carex obnupta J. T. Howell 1946-7-4 s.n. Marin Dillon's Beach. Comment
  RSA550627  Carex globosa J. T. Howell 1944-4-2 19368 A Marin Southeast of Laurel Del, Mount Tamalpais Comment
Read comments May 31 2010
  RSA70406  Arctostaphylos glandulosa var. cushingiana J. T. Howell 1933-3-19 10868 Marin South side of Mt. Tamalpais above Mill Valley. Comment
  RSA70837  Arctostaphylos hookeri subsp. montana J. T. Howell 1926-2-28 1655 Marin Mt. Tamalpais on south side. Comment
  RSA82046  Cordylanthus mollis subsp. mollis J. T. Howell 1945-7-8 21277 Marin Burdell Station Comment
  RSA8513  Lepidium oxycarpum J. T. Howell 1933-4-1 10919 Marin 4.5 miles N of San Rafael. Comment
  RSA86719  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin Low field between Hamilton Field and Ignacio Comment
  RSA88694  Carex leptopoda J. T. Howell, J. W. Stacey 1936-6-7 12638 Marin Ledum Swamp on road to Point Reyes. Comment
  SBBG27393  Rubus ursinus J. T. Howell 1938-6-19 Marin Bootjack, Mt Tamalpais Comment
  SBBG27976  Clarkia amoena J. T. Howell 1946-6-9 Marin Pierce Ranch, N of Point Reyes peninsula 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
  SBBG28973  Rhamnus crocea J. T. Howell 1933-4-30 11188 Marin N side of 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
  SBBG41211  Phacelia californica J. T. Howell 1930-4-20 Marin Point Reyes Comment
  SBBG41384  Arctostaphylos glandulosa subsp. cushingiana J. T. Howell 1943-3-7 17881 Marin hills NE of San Rafael 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
  SBBG47373  Clarkia rubicunda J. T. Howell 1972-6-18 Marin near Ring Hill, Tiburon Peninsula 167 Comment
  SBBG64997  Phacelia insularis var. continentis J. T. Howell 1930-4-20 4732 Marin Point Reyes Comment
  SD71221  Phacelia imbricata John Thomas Howell 1947-6-18 23252 Marin Salmon Creek, Chileno Valley summit. Comment
  SD71226  Eryngium aristulatum John Thomas Howell 1946-9-15 23006 Marin Hidden Lake, Mt. Tamalpais. Comment
  SD71292  Plantago elongata John Howell 1946-4-14 21634 Marin Near Dillons Beach, Marin County 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
  SD71339  Sequoia sempervirens John Thomas Howell 1957-2-3 32020 Marin Fern Canyon, Mount Tamalpais Comment
  SD71372  Stipa lepida John Thomas Howell 1966-5-25 41538 Marin Gully just north of garden area, John Thomas Howell Botanical Garden, Tiburon Comment
  SEINET195299 Image available Phalaris aquatica John Thomas Howell 1945-8-12 21381 Marin Tiburon Comment
  SEINET195359 Image available Parapholis incurva John Thomas Howell 1945-5-6 20816 Marin San Rafael, CA Comment
  SEINET195364  Papaver californicum John Thomas Howell 1946-5-30 21962 Marin Little Carson Canyon. Comment
  SEINET195365 Image available Stenotaphrum secundatum J. T. Howell 1945-6-22 Marin West of Mill Valley on road to Muir Woods Comment
  SEINET196564 Image available Poa kelloggii John Thomas Howell 1950-5-18 26311 Marin Lagunitas Creek near Camp Taylor. Comment
  SEINET196565 Image available Melica geyeri var. aristulata John Thomas Howell 1947-5-18 23185 Marin unspecified Comment
  SEINET196686 Image available Bromus rubens John Thomas Howell 1947-4-27 23096 Marin Bald Mt. west of San Anselmo. Comment
  SEINET199903  Agrostis densiflora John Thomas Howell 1946-6-30 22146 Marin Rodeo Lagoon Comment
  SEINET199904  Agrostis hallii John Howell 1943-7-3 Marin Near Bootjack, Mt. Tamalpais Comment
  SEINET199909 Image available Elymus glaucus subsp. glaucus John Thomas Howell 1943-5-15 18097 Marin Tiburon Peninsula Comment
  SEINET199910 Image available Elymus triticoides John Thomas Howell 1943-5-9 19314 Marin Between Jamalpais Valley and Jamalpais High School Comment
  SEINET199912 Image available Scribneria bolanderi John Thomas Howell 1945-5-27 20879 Marin Area above Bootjack, Mt. Tamalpais Comment
  SEINET199914  Nassella pulchra John Thomas Howell 1941-6-8 16251 Marin San Rafael Hills Comment
  SEINET199917 Image available Glyceria leptostachya J. T. Howell 1943-6-6 18198 Marin Between Mill Valley and Muir Woods Comment
  SEINET199931 Image available Vulpia microstachys var. pauciflora John Thomas Howell 20801 Marin San Rafael Hills. Comment
  SEINET199936 Image available Pleuropogon hooverianus J. T. Howell 1947-4-27 23107 Marin Ross. Comment
  SEINET208612  Sequoia sempervirens John Thomas Howell 1957-2-3 32020 Marin Fern Canyon Mt.Tamalpais. Comment
  SEINET7893532  Cypselea humifusa John Thomas Howell 1947-1 24184 Marin Alpine Lake 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
  SEINET943641  Bromus carinatus var. carinatus John Thomas Howell 1958-1 33636 Marin S. side of Alpine Lake, Mt. Tamalpais Comment
  UC1042536  Campanula angustiflora John Thomas Howell 1946-5-12 21818 Marin Carson country Comment
  UC1100001  Najas guadalupensis John Thomas Howell 1946-9-29 23030 Marin Stinson Beach 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
  UC1106075  Isolepis carinata John Thomas Howell 1943-5-22 18154 Marin Lagunitas Meadows , Lagunitas Meadows (Mt. Tamalpais) Comment
  UC1106076  Scirpus acutus var. occidentalis John Thomas Howell 1946-9-15 23007 Marin Hidden Lake Mt. Tamalpais, Hidden Lake Comment
  UC1106079  Scirpus americanus John Thomas Howell 1944-9-10 20724 Marin marshes n Olema; n of Olema Comment
  UC1106080  Scirpus californicus John Thomas Howell 1944-9-10 20721 Marin n Olema; n of Olema Comment
  UC1106081  Eleocharis macrostachya John Thomas Howell 1944-6-25 19640 Marin San Rafael Comment
  UC1106085  Scirpus tabernaemontani John Thomas Howell 1944-7-9 19720 Marin s Tomales Bay; s of Tomales Bay Comment
  UC1106086  Eleocharis macrostachya John Thomas Howell 1939-5-14 Marin Phoenix Lake Mount Tamalpais Comment
  UC1106088  Elymus glaucus John Thomas Howell 1941-6-29 16341 Marin Laurel Dell Mt. Tamalpais Comment
  UC1106089  Elymus glaucus John Thomas Howell 1944-6-25 19642 Marin Santa Venetia Comment
  UC1106090  Elymus glaucus John Thomas Howell 1941-5-25 16215 Marin Rifle Camp Mt. Tamalpais Comment
  UC1106094  Festuca roemeri John Thomas Howell 1943-5-15 18084 Marin Tiburon Peninsula Comment
  UC1106095  Festuca elmeri John Thomas Howell 1943-5-22 18121 Marin near Fairfax; Deer Park Comment
  UC1106096  Festuca californica John Thomas Howell 1945-6-12 20952 Marin Point Reyes Peninsula, near radio station Point Reyes Peninsula Comment
  UC1106099  Vulpia microstachys var. pauciflora John Thomas Howell 1939-4-23 14617 Marin Upper Throckmorton Trail; Mt. Tamalpais Comment
  UC1106102  Elymus X hansenii John Thomas Howell 1948-5-31 24325 Marin near Camp Taylor; Devils Gulch 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
  UC1106114  Lolium multiflorum John Thomas Howell 1939-5-21 Marin W. Tiburon Comment
  UC1106115  Lolium perenne John Thomas Howell 1943-5-9 Marin San Raphael 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
  UC1106119  Hainardia cylindrica John Thomas Howell 1945-5-27 20880 Marin above Bootjack (Mount Tamalpais); Mount Tamalpais Comment
  UC1106122  Trisetum canescens John Thomas Howell 1949-5-15 25313 Marin w of Inverness; Mt. Tamalpais Comment
Read comments Feb 24 2012
  UC1106123  Trisetum canescens John Thomas Howell 1946-7-7 Marin Potrero Meadows; Mt. Tamalpais Comment
  UC1106127  Hordeum brachyantherum subsp. californicum John Thomas Howell 1948-5-31 24328 Marin near Camp Taylor (Devils Gulch) Comment
  UC1106130  Hordeum murinum subsp. leporinum John Thomas Howell 1939-5-28 Marin Almonte Comment
  UC1106131  Hordeum depressum John Thomas Howell 1944-5-28 Marin Almonte Comment
  UC1106136  Gastridium ventricosum John Thomas Howell 1940-5-26 Marin San Anselmo Canyon Comment
  UC1106138  Melica harfordii John Thomas Howell 1941-5-25 16204 Marin Mt. Tamalpais; Arturo Trail Comment
  UC1106141  Melica geyeri John Thomas Howell 1941-5-25 16227 Marin Potrero Meadow; Mt. Tamalpais Comment
  UC1106144  Atriplex californica John Thomas Howell 1944-9-10 20734 Marin n Inverness (Shell Beach); n of Inverness, Shell Beach Comment
  UC1106145  Mollugo verticillata John Thomas Howell 1946-11-24 Marin Alpine Lake, Mount Tamalpais Comment
  UC1106146  Cypselea humifusa John Thomas Howell 1939-8-27 15327 Marin Lake Lagunitas 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
  UC1106149  Chenopodium macrospermum var. halophilum John Thomas Howell 1947-10-26 24194 Marin Rodeo Lagoon Comment
  UC1106150  Rumex pulcher John Thomas Howell 1939-5-14 Marin Ross Comment
  UC1106151  Thysanocarpus curvipes John Thomas Howell 1944-4-13 19376 Marin Big Rock Ridge w Hamilton Field; Big Rock Ridge w of Hamilton Field Comment
  UC1106185  Rigiopappus leptocladus John Thomas Howell 1942-7-12 17022 Marin Tamalpais, Potrero Meadows Comment
  UC1106186  Lasthenia glaberrima John Thomas Howell 1945-5-9 20827 Marin between Hamilton Field and Ignacio Comment
  UC1106189  Microseris bigelovii John Thomas Howell 1947-4-23 23070 Marin w of Mt. Vision; Drakes Estero 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
  UC1106194  Polygonum marinense John Thomas Howell 1945-7-8 21282 Marin Burdell; salt marshes Comment
  UC1106195  Pterostegia drymarioides John Thomas Howell 1945-5-6 20806 Marin San Rafael Hills Comment
  UC1106208  Aira caryophyllea John Thomas Howell 1943-6-13 Marin Sausalito Comment
  UC1106209  Aira elegantissima John Thomas Howell 1945-5-9 20831 Marin between Hamilton Field and Ignacio Comment
  UC1106212  Agrostis microphylla John Thomas Howell 1946-6-9 22007 Marin n Abbotts Lagoon Comment
  UC1106213  Agrostis blasdalei John Thomas Howell 1947-5-14 23150 Marin wnw Mount Vision; Drakes Estero Comment
  UC1106242  Trifolium oliganthum John Thomas Howell 1947-4-27 23080 Marin w San Anselmo; Bald Mtn Comment
  UC1106247  Trifolium variegatum var. melananthum John Thomas Howell 1945-5-9 20805 Marin Between Hamilton Field and Ignacio Comment
  UC1106253  Medicago polymorpha John Thomas Howell 1947-7-6 Marin Laurel Dell Mt. Tamalpais Comment
  UC1106257  Guillenia lasiophylla John Thomas Howell 1943-4-11 17904 Marin Black Canyon, San Rafael hills San Rafael Comment
  UC1106262  Rorippa curvisiliqua John Thomas Howell 1939-10-15 15372 Marin Alpine Lake Comment
  UC1106263  Pentachaeta alsinoides John Thomas Howell 1946-5-16 21865 Marin se side Angel Island Comment
  UC1106267  Agoseris heterophylla var. heterophylla J. Thomas Howell 1944-5-14 19480 Marin on serpentine Chileno Valley Comment
  UC1106272  Micropus amphibolus John Thomas Howell 1944-4-13 19387 Marin w Hamilton Field; Big Rock Ridge Comment
  UC1106273  Micropus californicus var. californicus John Thomas Howell 1947-5-4 23134 Marin San Rafael Hills Comment
  UC1106277  Allium triquetrum John Thomas Howell 1950-4-23 26309 Marin along Summit Ave. Mill Valley, Summit Ave. Comment
  UC1106282  Zannichellia palustris John Thomas Howell 1947-4-30 23113 Marin near Dillons Beach; near Dillons Beach Comment
  UC1106283  Ruppia cirrhosa John Thomas Howell 1943-10-3 19334 Marin Muir Beach Comment
  UC1106292  Juncus phaeocephalus var. phaeocephalus John Thomas Howell 1945-9-13 21464 Marin Pt. Reyes Peninsula, near radio station Pt. Reyes Peninsula Comment
  UC1106293  Juncus phaeocephalus var. paniculatus John Thomas Howell 1944-7-9 Marin Mt. Vision Comment
  UC1106297  Maianthemum dilatatum John Thomas Howell 1946-5-5 21757 Marin swale near radio station Pt. Reyes Peninsula Comment
  UC1106300  Juncus kelloggii John Thomas Howell 1946-6-2 21980 Marin Rocky Ridge Fire Trail Mt. Tamalpais Comment
  UC1106301  Minuartia californica John Thomas Howell 1946-4-14 21632 Marin near Dillons Beach Comment
  UC1106304  Sagina decumbens subsp. occidentalis John Thomas Howell 1946-4-21 21691 Marin downs near radio station Pt. Reyes Peninsula Comment
  UC1106308  Hesperolinon congestum John Thomas Howell 1943-5-15 18094 Marin Tiburon Peninsula Comment
  UC1106309  Limnanthes douglasii John Thomas Howell 1946-4-18 21677 Marin Novato Comment
  UC1106312  Vulpia microstachys var. ciliata John Thomas Howell 1943-6-8 18223 Marin Bootjack; Mt. Tamalpais Comment
  UC1106313  Vulpia microstachys var. ciliata John Thomas Howell 1939-5-14 14682 Marin n side Mt. Tamalpais, West Peak; Mt. Tamalpais Comment
  UC1114154  Zigadenus micranthus var. fontanus John Thomas Howell 1936-6-7 12656 Marin near Bootjack (Mount Tamalpais); Mount Tamalpais Comment
  UC1176732  Dudleya farinosa John Thomas Howell 1939-7-2 14824 A Marin Elk Valley Comment
  UC1176733  Heuchera pilosissima John Thomas Howell 1949-6-7 25346 Marin Dillons Beach Comment
  UC1176737  Saxifraga californica John Thomas Howell 1947-3-2 Marin Bald Mountain, on Yolanda Route Bald Mountain Comment
  UC1176742  Aquilegia eximia John Thomas Howell 1944-7-7 19681 Marin Camp Handy Mt. Tamalpais Comment
  UC1176743  Thalictrum fendleri var. polycarpum John Thomas Howell 1939-6-18 Marin Mud Lake Pt. Reyes Peninsula Comment
  UC1176747  Ranunculus pusillus John Thomas Howell 1946-6-16 22082 Marin Olema Marshes Comment
  UC1176752  Ranunculus repens John Thomas Howell 1946-6-9 22014 Marin Pierce Ranch Point Reyes Peninsula Comment
  UC1176753  Delphinium John Thomas Howell 1945-5-20 20869 Marin Tiburon Comment
  UC1176757  Urtica dioica subsp. gracilis John Thomas Howell 1946-6-16 22074 Marin Inverness Park Comment
  UC1176762  Ribes menziesii John Thomas Howell 1944-7-9 19695 Marin Inverness Comment
  UC1176763  Ribes divaricatum var. pubiflorum John Thomas Howell 1941-7-6 16357 Marin Kent Trail Mt. Tamalpais Comment
  UC1176772  Asarum caudatum John Thomas Howell 1946-4-14 21611 Marin near Tomales Comment
  UC1176773  Aristolochia californica John Thomas Howell 1945-5-13 20864 Marin Deer Park near Fairfax Comment
  UC1176782  Amaranthus watsonii John Thomas Howell 1945-9-16 21473 Marin near San Rafael Comment
  UC1176783  Amaranthus powellii John Thomas Howell 1943-9-5 Marin Mill Valley Comment
  UC1176793  Spartina foliosa John Thomas Howell 1944-7-30 Marin Almonte Comment
  UC1176797  Chenopodium ambrosioides John Thomas Howell 1945-5-9 Marin Ignacio Comment
  UC1176800  Salix laevigata John Thomas Howell 1939-9-3 Marin San Antonio Creek Comment
  UC1176801  Salix lasiandra subsp. lasiandra John Thomas Howell 1939-4-23 Marin Blythedale Canyon Comment
  UC1176806  Chenopodium ambrosioides var. suffruticosum John Thomas Howell 1940-9-15 Marin Stinson Beach Comment
  UC1176808  Rumex salicifolius var. crassus John Thomas Howell 1946-7-4 22173 Marin Dillons Beach Comment
  UC1176809  Rumex salicifolius var. salicifolius John Thomas Howell 1946-7-7 22204 Marin Potrero Meadow Mt. Tamalpais Comment
  UC1176812  Salix lasiolepis John Thomas Howell 1946-7-4 22180 Marin Dillons Beach Comment
  UC1176813  Salix exigua var. hindsiana John Thomas Howell 1945-5-9 20841 Marin Ignacio Comment
  UC1176887  Grindelia hirsutula John Thomas Howell 1939-7-2 14834 Marin Pirates Cove Comment
Read comments Jun 12 2012
  UC1176892  Grindelia hirsutula John Thomas Howell 1944-9-10 20739 Marin Inverness Comment
  UC1176893  Grindelia hirsutula John Thomas Howell 1946-5-16 21860 Marin se side Angel Island; se side Angel Island Comment
  UC1176900  Artemisia douglasiana John Thomas Howell 1939-10-15 Marin Fairfax Comment
  UC1176901  Achillea millefolium J. Thomas Howell 1947-5-14 23163 Marin MaClure Beach Comment
  UC1176906  Polygonum punctatum John Thomas Howell 1946-6-30 22167 Marin Rodeo Lagoon Comment
  UC1176908  Chorizanthe cuspidata var. villosa John Thomas Howell 1945-6-12 Marin Pt. Reyes Comment
  UC1176912  Eriogonum nudum var. auriculatum John Thomas Howell 1939-7-2 14841 Marin between Big Lagoon and Muir Woods Comment
  UC1176913  Polygonum marinense John Thomas Howell 1949-5-22 25326 Marin Drakes Estero; salt marsh at head Comment
  UC1176917  Polygonum ramosissimum John Thomas Howell 1945-7-8 21284 Marin San Antonio Station Comment
  UC1176920  Stebbinsoseris heterocarpa John Thomas Howell 1946-5-12 Marin Fairfax Country Club Comment
  UC1176921  Microseris douglasii subsp. douglasii John Thomas Howell 1946-5-12 21785 Marin Carson Ridge Comment
  UC1176924  Chorizanthe polygonoides var. polygonoides John Thomas Howell 1941-5-25 16229 Marin between Potrero Meadow and Mount Theater (Mount Tamalpais); Mt. Tamalpais, btwn Potrero Meadow and Mt. Theater Comment
  UC1176925  Chorizanthe cuspidata var. villosa John Thomas Howell 1946-6-9 21999 Marin Abbotts Lagoon Comment
  UC1177011  Bromus diandrus John Thomas Howell 1949-6-7 25343 Marin Aurora School, northern Marin County Aurora School Comment
  UC1177014  Bromus carinatus var. carinatus John Thomas Howell 1948-5-31 24326 Marin Devils Gulch near Camp Taylor; Devils Gulch Comment
  UC1177015  Bromus carinatus var. carinatus John Thomas Howell 1946-5-4 21748 Marin Dillons Beach 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
  UC1177019  Bromus carinatus var. carinatus John Thomas Howell 1947-4-27 23079 Marin w of San Anselmo (Bald Mountain); Bald Mountain Comment
  UC1177022  Anthoxanthum odoratum John Thomas Howell 1943-6-6 18197 Marin between Mill Valley and Muir Woods Comment
  UC1177023  Andropogon glomeratus var. pumilus John Thomas Howell 1939-10-15 Marin near Liberty Camp; near Liberty Camp Comment
  UC1177030  Agrostis densiflora John Thomas Howell 1946-6-30 22146 Marin Rodeo Lagoon Comment
  UC1177031  Agrostis hallii John Thomas Howell 1943-7-11 Marin Mt. Tamalpais Comment
  UC1177034 Image available Agrostis exarata John Thomas Howell 1943-7-4 18250 Marin on road to Point Reyes; Ledum Swamp Comment
  UC1177035  Agrostis stolonifera John Thomas Howell 1945-8-5 21363 Marin near Stinson Beach; McKinnans Landing Comment
  UC1177036  Agrostis viridis John Thomas Howell 1944-6-25 19641 Marin San Rafael Comment
  UC1177039  Agrostis pallens John Thomas Howell 1943-7-4 18268 Marin near Ledum Swamp; Pt. Reyes Peninsula Comment
  UC1177040  Agrostis pallens John Thomas Howell 1943-6-6 18205 Marin ridge se Muir Woods 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
  UC1177107  Brachypodium distachyon John Thomas Howell 1949-6-7 25340 Marin Chileno Valley 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
  UC1177116  Digitaria sanguinalis John Thomas Howell 1941-7-6 Marin Ross 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
  UC1177127  Calamagrostis nutkaensis John Thomas Howell 1943-7-4 18248 Marin Ledum Swamp; on road to Pt. Reyes Comment
  UC1177174  Lotus grandiflorus John Thomas Howell 1944-4-2 19363 Marin Bolinas Ridge Comment
  UC1177175  Lupinus formosus John Thomas Howell 1944-5-7 19432 Marin Baltimore Park Comment
  UC1177178  Lupinus albifrons var. douglasii John Thomas Howell 1950-6-4 26622 Marin Mt. Tamalpais; Mt. Tamalpais, Blithedale Canyon Comment
  UC1177179  Lupinus formosus John Thomas Howell 1940-5-26 15521 Marin San Anselmo Canyon Comment
  UC1177181  Lupinus variicolor John Thomas Howell 1939-6-4 14733 D Marin Pt. Reyes Peninsula 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
  UC1177189  Lotus scoparius John Thomas Howell 1942-7-12 17035 Marin Northside Trail Mt. Tamalpais 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
  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
  UC1177200  Trifolium obtusiflorum John Thomas Howell 1942-6-7 16972 Marin above Fairfax (San Anselmo Canyon) Comment
  UC1177201  Trifolium bifidum var. decipiens John Thomas Howell 1943-5-9 17968 Marin San Rafael Hills Comment
  UC1177204  Trifolium depauperatum var. amplectens John Thomas Howell 1946-4-18 21646 Marin Ignacio Comment
  UC1177205  Trifolium variegatum var. melananthum John Thomas Howell 1947-4-23 23064 Marin w Mt. Vision (Drakes Estero) Comment
  UC1177206  Trifolium albopurpureum var. dichotomum John Thomas Howell 1947-4-27 23104 Marin w side San Anselmo (type region); Bald Mtn Comment
  UC1177209  Trifolium willdenovii John Thomas Howell 1944-5-7 Marin Baltimore Park Comment
  UC1177212  Lupinus variicolor John Thomas Howell 1946-6-13 22051 Marin e Aurora School (at Sonoma Co. line) Comment
  UC1177213  Lupinus formosus John Thomas Howell 1946-6-13 22064 Marin Estero Americano Comment
  UC1177217  Lupinus formosus John Thomas Howell 1946-5-25 21934 Marin Greenbrae Hills Comment
  UC1177220  Astragalus pycnostachyus var. pycnostachyus John Thomas Howell 1939-6-4 Marin on road to Pt. Reyes head of Drake's Bay on road to Pt. Reyes, head of Drake's Bay Comment
  UC1177221  Vicia gigantea John Thomas Howell 1947-4-13 Marin Tiburon Comment
Read comments Mar 26 2009
  UC1177224  Medicago polymorpha John Thomas Howell 1939-4-23 Marin Blithedale Canyon Mt. Tamalpais Comment
  UC1177225  Medicago lupulina John Thomas Howell 1947-5-8 Marin Sausalito Comment
  UC1177228  Lupinus formosus John Thomas Howell 1939-5-21 14703 Marin e side Tiburon Peninsula; e side of Tiburon Peninsula 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
  UC1177237  Amelanchier utahensis John Thomas Howell 1941-6-29 16328 Marin Rock Spring; Mt. Tamalpais Comment
  UC1177242  Horkelia californica John Thomas Howell 1945-7-29 21346 Marin Bolinas Comment
  UC1177243  Holodiscus discolor John Thomas Howell 1946-6-30 22157 Marin Rodeo Lagoon Comment
  UC1177252  Lepidium lasiocarpum var. lasiocarpum John Thomas Howell 1947-6-18 23277 Marin Dillons Beach Comment
  UC1177253  Cardamine californica var. integrifolia John Thomas Howell 1949-4-6 25297 Marin Ignacio Comment
  UC1177257  Hirschfeldia incana John Thomas Howell 1942-6-21 17002 Marin Fairfax Comment
  UC1177262  Solidago elongata John Thomas Howell 1945-8-19 21426 Marin near Ledum Swamp (Point Reyes Peninsula); Point Reyes Peninsula Comment
  UC1177263  Solidago spathulata John Thomas Howell 1945-9-13 21463 Marin Drakes Estero Comment
  UC1177272  Heterotheca oregona var. oregona John Thomas Howell 1943-9-5 19319 Marin s of Mill Valley (along railroad) Comment
  UC1177273  Symphyotrichum chilense J. Thomas Howell 1943-9-5 19318 Marin Mill Valley Comment
  UC1177282  Lactuca serriola John Thomas Howell 1939-11-5 Marin Manzanita Comment
  UC1177287  Hedypnois rhagadioloides John Thomas Howell 1947-6-18 23278 Marin near Dillons Beach Comment
  UC1177292  Cirsium douglasii var. douglasii J. Thomas Howell 1947-6-18 23286 Marin n of Dillons Beach Comment
  UC1177293  Cirsium quercetorum John Thomas Howell 1943-6-6 18200 Marin between Mill Valley Muir Woods Comment
  UC1177297  Pseudognaphalium luteoalbum John Thomas Howell 1943-5-9 17948 Marin San Rafael 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
  UC1177305  Cirsium occidentale var. venustum J. Thomas Howell 1946-5-14 21845 Marin along road between Rock Spring and Summit Meadow; Mt. Tamalpais Comment
  UC1177306  Cirsium occidentale var. occidentale J. Thomas Howell 1942-5-16 16956 Marin Sausalito Hills Comment
  UC1177308  Cirsium arvense J. Thomas Howell 1946-9-20 23022 Marin e of Tomales (Petaluma Road) Comment
  UC1177309  Ambrosia psilostachya J. Thomas Howell 1944-9-24 20756 Marin e side of Bolinas Lagoon Comment
  UC1177312  Helenium puberulum John Thomas Howell 1939-7-2 14833 Marin Pirates Cove Comment
  UC1177313  Lasthenia californica subsp. californica John Thomas Howell 1947-4-23 23069 Marin w of Mt. Vision; Drakes Estero Comment
  UC1177321  Achyrachaena mollis J. Thomas Howell 1946-4-18 21672 Marin Black Point Comment
  UC1177324  Quercus X chasei John Thomas Howell 1946-12-22 23035 Marin Greenbrae Hills Comment
  UC1177325  Quercus agrifolia var. frutescens John Thomas Howell 1947-3-23 23048 Marin Bootjack Mt. Tamalpais 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
  UC1177328  Brodiaea elegans subsp. elegans John Thomas Howell 1942-6-21 Marin San Anselmo Canyon Comment
  UC1177332  Allium dichlamydeum John Thomas Howell 1947-6-18 23276 Marin Dillons Beach Comment
  UC1177387  Platanthera leucostachys John Thomas Howell 1946-7-7 22218 Marin Potrero Meadow Mt. Tamalpais Comment
  UC1177392  Alisma plantago-aquatica John Thomas Howell 1944-6-25 19652 Marin Santa Venetia Comment
  UC1177393  Sagittaria brevirostra John Thomas Howell 1947-6-18 23261 Marin Chileno Valley 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
  UC1177405  Juncus mexicanus John Thomas Howell 1947-5-18 23183 Marin Lagunitas Meadows Comment
  UC1177406  Typha angustifolia John Thomas Howell 1948-9-19 25288 Marin Phoenix Lake Mt. Tamalpais; , Phoenix Lake Comment
  UC1177408  Quercus X subconvexa John Thomas Howell 1941-7-6 16364 Marin Hidden Lake Mt. Tamalpais Comment
  UC1177409  Quercus X subconvexa John Thomas Howell 1940-5-26 15525 Marin San Anselmo Canyon Comment
  UC1177413  Lithocarpus densiflorus John Thomas Howell 1947-5-25 23206 Marin Mt. Tamalpais; Berry Trail Comment
  UC1177417  Quercus berberidifolia John Thomas Howell 1944-11-12 20767 Marin Black Canyon San Rafael Hills Comment
  UC1177420  Typha domingensis John Thomas Howell 1948-9-19 25287 Marin Phoenix Lake Mt. Tamalpais; , Phoenix Lake Comment
  UC1177421  Typha angustifolia John Thomas Howell 1944-5-28 19521 Marin between Almonte and Mill Valley; between Almonte and Mill Valley Comment
  UC1177426  Minuartia douglasii John Thomas Howell 1946-5-12 21782 Marin Carson Ridge Comment
  UC1177428  Paronychia franciscana John Thomas Howell 1941-6-8 16259 Marin hills ne San Rafael Comment
  UC1177432  Rosa spithamea John Thomas Howell 1946-9-8 23001 Marin sw Lake Lagunitas; Mt. Tamalpais Comment
  UC1177433  Rosa spithamea John Thomas Howell 1942-6-21 17001 Marin San Anselmo Canyon Comment
  UC1177447  Linum bienne John Thomas Howell 1946-6-9 22015 Marin near Olema Comment
  UC1177453  Ceanothus foliosus John Thomas Howell 1946-5-25 21942 Marin hills w of Corte Madera Comment
  UC1177462  Vicia hirsuta John Thomas Howell 1943-7-4 18281 Marin near Inverness Comment
  UC1177463  Vicia hassei John Thomas Howell 1946-4-18 21658 Marin Black Point Comment
  UC1177473  Polygala californica John Thomas Howell 1948-5-29 Marin Fern Canyon Mt. Tamalpais, Fern Canyon Comment
  UC1177477  Lupinus microcarpus var. microcarpus John Thomas Howell 1946-5-4 21726 Marin between Tomales and Dillons Beach; between Tomales and Dillons Beach 106 Comment
  UC1177482  Phalaris paradoxa John Thomas Howell 1943-5-30 18179 Marin Mill Valley; Summit Ave. Comment
  UC1177483  Phalaris minor John Thomas Howell 1944-5-28 19511 Marin between Manzanita and Almonte Comment
  UC1177493  Paspalum dilatatum John Thomas Howell 1945-8-5 21364 Marin Stinson Beach near Stinson Beach, McKinnan's Landing (McKinnan's Landing) Comment
  UC1177505  Dryopteris arguta John Thomas Howell 1940-5-12 Marin Lagunitas Creek Canyon; Mt. Tamalpais Comment
  UC1177506  Equisetum arvense John Thomas Howell 1944-3-26 19340 Marin Inverness Comment
  UC1177509  Pellaea mucronata var. mucronata John Thomas Howell 1950-4-30 26310 Marin East Peak Mt Tamalpais Comment
  UC1177512  Equisetum telmateia subsp. braunii John Thomas Howell 1940-5-12 15416 Marin Lagunitas Creek Comment
  UC1177513  Pilularia americana John Thomas Howell 1947-7-7 25357 Marin strand of Lake Lagunitas Comment
  UC1177517  Equisetum arvense John Thomas Howell 1947-6-4 23218 Marin swale near radio station Pt. Reyes Peninsula 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
  UC1601609  Streptanthus glandulosus subsp. pulchellus John Thomas Howell 1938-5-22 13791 Marin San Anselmo Canyon Comment
  UC1607406  Zigadenus micranthus var. fontanus John Thomas Howell 1936-6-7 12656 Marin near Bootjack (Mount Tamalpais); Mount Tamalpais Comment
  UC421611  Layia platyglossa John Thomas Howell 1930-4-20 4735 Marin Pt. Reyes Comment
  UC421667  Sanicula crassicaulis John Thomas Howell 1930-4-20 4744 Marin head of Drake's Bay, on road to Inverness Drake's Bay Comment
  UC421671  Lasthenia minor John Thomas Howell 1930-4-20 4733 Marin Pt. Reyes Comment
  UC517473  Lepidium oxycarpum John Thomas Howell 1933-4-1 10919 Marin 4.5 mi n San Rafael Comment
  UC518009  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1933-3-19 10868 Marin above Mill Valley (s side of mt.); Mt. Tamalpais Comment
  UC518016  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1933-3-19 10866 A Marin slopes at head Muir Woods Comment
  UC583255  Carex mendocinensis John Thomas Howell, J. W. Stacey 1936-6-7 Marin Near Bootjack, Mount 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
  UC648309  Cuscuta subinclusa John Thomas Howell 1939-9-3 15355 Marin mouth of San Antonio Creek San Antonio Creek 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
  UC710443  Carex leptalea John Thomas Howell 1943-7-4 18254 Marin on road to Point Reyes; Ledum Swamp Comment
  UC710451  Carex harfordii John Thomas Howell 1943-7-4 18266 Marin near Ledum Swamp; Pt. Reyes Peninsula Comment
  UC710455  Ribes victoris John Thomas Howell 1943-4-11 17915 Marin hills ne San Rafael Comment
  UC710603  Desmazeria rigida John Thomas Howell 1943-6-13 18225 Marin Sausalito 60 Comment
  UC710605  Plantago truncata subsp. firma John Thomas Howell 1944-5-21 19500 Marin n side Mt. Tamalpais; , Lagunitas Meadows 243 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
  UC710617  Amaranthus deflexus John Thomas Howell 1944-7-23 19852 Marin San Rafael 15 Comment
  UC710620  Verbena incompta John Thomas Howell 1943-9-5 19323 Marin southern part Mill Valley 7 Comment
  UC710622  Acacia dealbata John Thomas Howell 1943-8-29 19312 Marin Summit [Arenme] Ridge above Mill Valley 152 Comment
  UC750549  Lessingia hololeuca John Thomas Howell 1945-9-16 21484 Marin n San Rafael (and e of San Venetia) Comment
  UC750600  Parapholis incurva John Thomas Howell 1945-5-6 20816 Marin San Rafael Comment
  UC750706  Pentachaeta bellidiflora John Thomas Howell 1946-5-25 21933 Marin Greenbrae Hills Comment
  UC750707  Papaver californicum John Thomas Howell 1946-5-30 21962 Marin Little Carson Canyon Comment
  UC750708  Silene multinervia John Thomas Howell 1946-5-30 21963 Marin Little Carson Canyon Comment
  UC750711  Triglochin maritima John Thomas Howell 1944-5-28 19509 Marin Manzanita Comment
  UC750717  Madia anomala John Thomas Howell 1946-5-25 21932 Marin Greenbrae Hills Comment
  UC817987  Vulpia microstachys var. ciliata John Thomas Howell 1938-6-9 13909 Marin Laurel Dell; Mt. Tamalpais Comment
  UC856885  Navarretia squarrosa John Thomas Howell 1938-6-19 13916 Marin Throckmorton Trail Mt. Tamalpais Comment
  UC879570  Cuscuta salina var. major John Thomas Howell 1939-11-5 15386 Marin Sausalito Comment
  UC884322  Stachys pycnantha John Thomas Howell 1937-7-4 13091 Marin Tiburon Comment
  UC904941  Carex garberi John Thomas Howell 1945-8-19 21423 Marin near Ledum Swamp Comment
  UC904992  Carex densa John Thomas Howell 1945-5-6 Marin San Rafael, near Dominican College Comment
  UC905000  Carex praegracilis John Thomas Howell 1946-6-13 22043 Marin e Aurora School (at Sonoma Co. line) Comment
  UC905002  Carex bolanderi John Thomas Howell 1944-6-4 19540 Marin w Inverness; Inverness Ridge Comment
  UC905025  Carex buxbaumii John Thomas Howell 1947-6-4 23213 Marin swale near radio station Pt. Reyes Peninsula Comment
  UC905029  Carex vesicaria var. major John Thomas Howell 1946-6-13 22032 Marin Chileno Valley Comment
  UC905051  Scrophularia californica John Thomas Howell 1948-6-6 24331 Marin Bolinas Bay Sand Spit Comment
  UC905053  Torreya californica John Thomas Howell 1948-5-16 24304 Marin near top of Eldridge Grade Mt. Tamalpais, Eldridge Grade Comment
  UC905070  Erodium brachycarpum John Thomas Howell 1947-4-23 23075 Marin e side Drakes Estero; Point Reyes Peninsula Comment
  UC908798  Navarretia heterodoxa John Thomas Howell 1945-7-15 21308 Marin near Liberty Camp Comment
  UC927238  Calamagrostis stricta subsp. inexpansa John Thomas Howell 1947-6-4 1412 Marin swale near radio station; Point Reyes Peninsula Comment
  UC927239  Agrostis microphylla John Thomas Howell 1947-5-14 1411 Marin wnw Mount Vision; Drakes Estero Comment
  UCD103126  Erodium brachycarpum John Thomas Howell 1947-4-23 23075 Marin East side of Drakes Estero, Point Reyes Peninsula. Comment
  UCD106628  Lupinus arboreus John Thomas Howell 1958-7-6 33642 Marin south side of Mt. Tamalpais above Cascade Canyon. Comment
  UCD106704  Lotus uliginosus John Thomas Howell 1944-7-30 19856 Marin Between Mill Valley and head of salt marshes. 3 Comment
  UCD106705  Lotus uliginosus John Thomas Howell 1944-7-30 19856 Marin Between Mill Valley and head of salt marshes. 3 Comment
  UCD110732  Salix babylonica John Thomas Howell 1980-9-8 53899 Marin Between Alpine and Bon Tempe Lakes. Comment
  UCD113764  Rubus armeniacus John Thomas Howell 1943-8-29 19311 Marin Summit Avenue Ridge, Mill Valley. Comment
  UCD113765  Rubus armeniacus John Thomas Howell 1943-8-29 19311 Marin Summit Avenue, Mill Valley. Comment
  UCD116500  Cistus incanus John Thomas Howell 1941-6-10 16287 Marin Black Point. Comment
  UCD127496  Eryngium racemosum John Thomas Howell 1946-9-15 23006 Marin Hidden Lake, Mount Tamalpais. Comment
  UCD135596  Senecio minimus John Thomas Howell 1944-7-30 19857 Marin Almonte. Comment
  UCD51566  Aegilops triuncialis John Thomas Howell 1953-7-5 29107 Marin East Peak, Mt. Tamalpais. Comment
Read comments Aug 10 2011
  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
  UCD51985  Agrostis densiflora John Thomas Howell 1945-7-4 21271 Marin Inverness Ridge. 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
  UCD52394  Agrostis exarata John Thomas Howell 1945-6-24 21237 Marin Willow Meadow, Kent Trail, Mt. Tamalpais. Comment
  UCD52516  Agrostis exarata John Thomas Howell 1944-6-25 19661 Marin between Santa Venetia and Chinese Camp. Comment
  UCD56160  Anthoxanthum aristatum John Thomas Howell 1945-5-9 20856 Marin Low field between Hamilton Field and Ignacio. Comment
  UCD63892  Desmazeria rigida John Thomas Howell 1943-6-13 18225 Marin Sausalito. 60 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
  UCD86394  Stenotaphrum secundatum John Thomas Howell 1945-7-22 21330 Marin West of Mill Valley on road to Muir Woods. Comment
  UCD86395  Stenotaphrum secundatum John Thomas Howell 1945-7-22 21330 Marin West of Mill Valley on road to Muir Woods. Comment
  UCD88139  Phalaris aquatica John Thomas Howell 1945-8-12 21381 Marin Tiburon. Comment
  UCD88655  Parapholis incurva John Thomas Howell 1945-5-6 20816 Marin San Rafael. Comment
  UCD92719  Setaria pumila John Thomas Howell 1954-10-21 30112 Marin Mt. Tamalpais, near Bootjack. Comment
  UCD96976  Cypselea humifusa John Thomas Howell 1947-10-19 24184 Marin Desiccated strand of Alpine Lake. Comment
  UCR139460  Verbena incompta J. T. Howell 1943-9-5 19323 Marin San Francisco Bay Region, southern part of Mill Valley 8 Comment
  UCR244518  Digitaria sanguinalis J. T. Howell 1989-10-16 s.n. Marin Terra Linda, Freitas Park 29 Comment
  UCR66440  Lactuca saligna J. T. Howell 1943-9-25 19324 Marin Mill Valley, southern part of valley 8 Comment
  UCR70885  Desmazeria rigida J. T. Howell 1943-6-13 18225 Marin Sausalito 61 Comment
  UCR88851  Lepidium sativum J. T. Howell 1987-1-21 s.n. Marin Terra Linda Vegetable Garden at Nova Albion and Cermenho Court, Tera Linda, San Rafael. 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-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-BC112861  Eleocharis macrostachya John Thomas Howell 1939-8-27 15315 Marin Phoenix Lake, Mt. Tamalpais Comment
  CAS-BOT-BC112864  Eleocharis macrostachya John Thomas Howell 1939-8-27 15325 Marin Lake Lagunitas Comment
  CAS-BOT-BC113200  Eleocharis parishii John Thomas Howell 1965-10-13 41409 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC114757  Cyperus alternifolius John Thomas Howell 1988-8-22 s.n. Marin Escaping from cultivated plants on Nova Albion St. Terra Sinda, San Rafael. Comment
  CAS-BOT-BC116894  Carex subbracteata var. subbracteata John Thomas Howell 1949-5-25 25336 Marin Sandy flats behind dunes, Pt. Reyes Peninsula. Comment
  CAS-BOT-BC116901  Carex subbracteata var. subbracteata John Thomas Howell; J. W. Stacey 1936-6-7 12654 Marin Sandy mesa of Point Reyes Peninsula. 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-BC119527  Carex nudata John Thomas Howell 1945-8-29 20788 Marin Rocky bed of Lagunitas Creek. Comment
  CAS-BOT-BC12853  Lepidium pinnatifidum John Thomas Howell 1976-6-2 51804 Marin Corte Madera. In park. Comment
  CAS-BOT-BC130017  Fritillaria affinis John Thomas Howell 1930-3-9 4551 Marin Point Reyes 152 Comment
  CAS-BOT-BC130020  Fritillaria affinis John Thomas Howell 1940-5-20 15496 Marin Pt. Reyes lighthouse Comment
  CAS-BOT-BC130022  Fritillaria affinis John Thomas Howell 1950-3-28 26304 Marin Pt. Reyes near the lighthouse Comment
  CAS-BOT-BC136570  Piperia elegans John Thomas Howell 1946-8-23 22887 Marin Field redacted by CAS, contact the data manager for more information 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-BC138398  Aira caryophyllea var. capillaris John Thomas Howell 1947-4-27 23085 Marin Bald Mountain, west of San Anselmo. Comment
  CAS-BOT-BC143092  Potentilla anserina subsp. pacifica John Thomas Howell 1947-10-26 24198 Marin Rodeo Lagoon Comment
  CAS-BOT-BC146564  Carex gynodynama John Thomas Howell 1947-5-25 23202 Marin Willow Meadow, Mt. Tamalpais Comment
  CAS-BOT-BC146633  Carex mendocinensis John Thomas Howell 1945-4-29 20789 Marin Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC146893  Rosa rubiginosa John Thomas Howell 1959-11-4 s.n. Marin East of Tomales Comment
  CAS-BOT-BC151946  Diplacus douglasii John Thomas Howell 1946-3-24 21587 Marin Carson country Comment
  CAS-BOT-BC152295  Diplacus congdonii John Thomas Howell 1946-3-24 21586 Marin Burned area in Carson country. Comment
  CAS-BOT-BC155828  Bromus catharticus var. elatus John Thomas Howell 1954-12-7 30144 Marin Stinson Beach. Comment
  CAS-BOT-BC156286  Bromus catharticus John Thomas Howell 1959-11-4 35108 Marin In west part of Frank Valley. Comment
  CAS-BOT-BC157464  Solanum umbelliferum J. T. Howell 1941-3-30 s.n. Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC161852  Bromus rubens John Thomas Howell 1944-4-13 19386 Marin Big Rock Ridge west of Hamilton Field. Comment
  CAS-BOT-BC164605  Clarkia gracilis subsp. gracilis John Thomas Howell 1946-6-23 22119 Marin Head of Little Carson Canyon Comment
  CAS-BOT-BC165076  Clarkia rubicunda John Thomas Howell 1946-6-23 s.n. Marin Near Fairfax Country Club (Meadow Club) Comment
  CAS-BOT-BC165086  Clarkia rubicunda John Thomas Howell 1946-6-30 22131 Marin Valley east of Rodeo Lagoon Comment
  CAS-BOT-BC172453  Clarkia purpurea subsp. purpurea John Thomas Howell 1947-7-6 23321 Marin Near Bootjack, Mt. Tamalpais 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-BC175954  Salpichroa origanifolia John Thomas Howell 1944-9-16 20740 Marin Cascade Drive, Mill Valley Comment
  CAS-BOT-BC176095  Valerianella locusta John Thomas Howell 1967-5-21 42252 Marin In garden of Malcolm & Laura Smith, Larkspur Comment
  CAS-BOT-BC176097  Verbena bonariensis John Thomas Howell 1943-9-5 19323 Marin In southern part of Mill Valley 7 Comment
  CAS-BOT-BC176099  Verbena lasiostachys John Thomas Howell 1946-7-4 22172 Marin Salmon Creek 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-BC184797  Vulpia myuros subsp. megalura John Thomas Howell 1947-5-25 23198 Marin Simmons Trail, Mt. Tamalpais Comment
  CAS-BOT-BC184801  Vulpia myuros subsp. megalura John Thomas Howell 1943-5-9 17961 A Marin San Rafael Hills Comment
  CAS-BOT-BC19456  Carex bolanderi John Thomas Howell 1944-7-2 s.n. Marin Mt Tamalpais. Nothside trail near Collier Springs. 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-BC20886  Carex globosa John Thomas Howell 1933-4-30 11193 Marin North side of Mt. Tamalpais. Comment
  CAS-BOT-BC20901  Carex globosa John Thomas Howell 1933-4-30 11193 Marin North side of Mt. Tamalpais. (above Phoenix Lake) Comment
  CAS-BOT-BC218487  Angelica hendersonii John Thomas Howell 1944-7-9 19704 Marin Inverness Ridge Comment
  CAS-BOT-BC219430  Nemophila parviflora John Thomas Howell 1939-4-23 14619 Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC220398  Monardella purpurea John Thomas Howell 1940-6-9 s.n. Marin Tiburon Comment
  CAS-BOT-BC220400  Monardella purpurea John Thomas Howell 1972-6-18 48867 Marin Near Ring Hill, Tiburon Peninsula 167 Comment
  CAS-BOT-BC220402  Monardella purpurea John Thomas Howell 1946-8-11 22847 Marin Between Mt. Theater & Barths Retreat, Mt. Tamalpais Comment
  CAS-BOT-BC220418  Monardella purpurea John Thomas Howell 1939-5-21 14689 Marin West side Tiburon Peninsula Comment
  CAS-BOT-BC220544  Monardella villosa John Thomas Howell 1939-7-2 14836 Marin Between Pirates Cove and Big Lagoon Comment
  CAS-BOT-BC22128  Carex harfordii John Thomas Howell 1937-6-13 13048 Marin Head of Drakes Bay, Point Reyes. 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-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-BC22902  Agoseris heterophylla John Thomas Howell 1946-6-2 s.n. Marin Potrero Meadows, Mt. Tamalpais Comment
  CAS-BOT-BC237994  Chloropyron molle subsp. molle John Thomas Howell 1945-7-8 21277 Marin At Burdell Station Comment
  CAS-BOT-BC237998  Chloropyron molle subsp. molle John Thomas Howell 1945-7-8 21283 Marin Bordering San Antonio Creek near San Antonio station 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-BC250722  Phalaris paradoxa John Thomas Howell 1945-7-15 21311 Marin Near Liberty's Comment
  CAS-BOT-BC253867  Panicum miliaceum John Thomas Howell 1988-7-14 s.n. Marin In Terra Linda Comment
  CAS-BOT-BC253869  Panicum miliaceum John Thomas Howell 1989-8-31 s.n. Marin In the Community Garden at Nova Albion and Cermenho Court, Terra Linda, San Rafael Comment
  CAS-BOT-BC254480  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1945-6-24 21238 Marin Mount Tamalpais, Willow Meadows, Kent Trail Comment
  CAS-BOT-BC254489  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1943-7-3 18247 Marin Near Bootjack, Mount Tamalpais Comment
  CAS-BOT-BC255116  Poa confinis John Thomas Howell; et al. 1980-6-19 s.n. Marin Back of the dunes, near Abbotts Lagoon, Point Reyes Peninsula Comment
  CAS-BOT-BC257625  Juncus J. T. Howell 1987-10-14 s.n. Marin Terra Linda Community Gardens Comment
  CAS-BOT-BC258974  Phalaris californica John Thomas Howell 1945-6-3 20941 Marin Near and between Twin Beaches (=Shell Beach) and Inverness Comment
  CAS-BOT-BC259185  Eriogonum latifolium John Thomas Howell 1966-5-25 41531 Marin John Thomas Howell Botanical Garden, Tiburon 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-BC265774  Phalaris aquatica John Thomas Howell 1939-7-18 s.n. Marin East side Bolinas Bay Comment
  CAS-BOT-BC269152  Lolium temulentum John Thomas Howell 1941-5-25 16232 Marin Near Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC270541  Calycadenia multiglandulosa John Thomas Howell 1926-8-15 2181 Marin Corte Madera Ridge, Mount Tamalpais 152 Comment
  CAS-BOT-BC272083  Centaurea cyanus John Thomas Howell 1929-6-25 s.n. Marin Near Eastwood place, Mill Valley Comment
  CAS-BOT-BC272227  Leymus pacificus John Thomas Howell 1945-6-12 20960 Marin Pt. Reyes Peninsula Comment
  CAS-BOT-BC272253  Leymus X multiflorus John Thomas Howell 1946-6-30 22143 Marin Rodeo Lagoon Comment
  CAS-BOT-BC272257  Leymus X multiflorus John Thomas Howell 1943-9-5 19314 Marin Between Tamalpais Valley and Tamalpais High School Comment
  CAS-BOT-BC272312  Lachnagrostis filiformis John Thomas Howell 1987-7-7 s.n. Marin Terra Linda Vegetable Garden, New Albion Way opposite Cermenho Court Comment
  CAS-BOT-BC272313  Lachnagrostis filiformis John Thomas Howell 1971-6-2 47649 Marin Bordering S.F. Bay on road from San Rafael to McNear's Comment
  CAS-BOT-BC273285  Calycadenia fremontii John Thomas Howell 1952-9-11 s.n. Marin Between Bootjack Camp and swampy slope just to the east, Mt. Tamalpais Comment
  CAS-BOT-BC273569  Leymus californicus John Thomas Howell 1944-7-7 19675 Marin Fish Grade between Phoenix and Lagunitas Lakes Comment
  CAS-BOT-BC273574  Leymus californicus John Thomas Howell 1946-6-2 21982 Marin Rocky Ridge Fire Trail, Mt. Tamalpais Comment
  CAS-BOT-BC273576  Leymus californicus John Thomas Howell 1939-7-2 14844 Marin Near Muir Woods Comment
  CAS-BOT-BC273586  Leymus californicus John Thomas Howell 1941-7-6 16356 Marin Kent Trail, Mt. Tamalpais 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-BC281721  Carduus pycnocephalus John Thomas Howell 1966-5-25 41542 Marin John Thomas Howell Botanical Garden, Tiburon. Gully just N of garden area Comment
  CAS-BOT-BC281812  Carduus tenuiflorus John Thomas Howell 1939-6-18 14783 Marin Near Mud Lake Comment
  CAS-BOT-BC282150  Melica geyeri John Thomas Howell 1947-5-25 23195 Marin Berenstein Trail near Mount Theater, Mount Tamalpais Comment
  CAS-BOT-BC282628  Gastridium phleoides John Thomas Howell 1939-7-16 s.n. Marin Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC283202  Lolium multiflorum John Thomas Howell 1939-4-23 s.n. Marin Blythedale Canyon, Mount Tamalpais Comment
  CAS-BOT-BC283519  Leymus X vancouverensis John Thomas Howell 1944-9-10 20732 Marin Near Inverness Comment
  CAS-BOT-BC283520  Leymus X vancouverensis John Thomas Howell 1945-8-19 21445 Marin Head of Drakes Bay Comment
  CAS-BOT-BC283527  Leymus X vancouverensis John Thomas Howell 1945-6-3 20926 Marin Shell Beach Comment
  CAS-BOT-BC28386  Carex gracilior John Thomas Howell 1944-4-23 19403 Marin Edge of salt marsh, hills of Kentfield 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-BC284386  Cirsium arvense John Thomas Howell 1946-9-20 23022 Marin Petaluma Road east of Tomales Comment
  CAS-BOT-BC285801  Cirsium vulgare John Thomas Howell 1959-11-4 35113 Marin Stinson Beach Comment
  CAS-BOT-BC285808  Cirsium vulgare John Thomas Howell 1959-11-4 35105 Marin Frank Valley Comment
  CAS-BOT-BC285925  Conyza bonariensis John Thomas Howell 1939-11-5 s.n. Marin Sausalito Comment
  CAS-BOT-BC286522  Cirsium occidentale var. venustum John Thomas Howell 1947-7-9 23331 Marin On Fish Grade, Mt. Tamalpais Comment
  CAS-BOT-BC286527  Cirsium occidentale var. venustum John Thomas Howell 1946-6-23 22118 Marin Head of Little Carson Canyon Comment
  CAS-BOT-BC288730  Cirsium remotifolium John Thomas Howell 1940-5-26 15520 Marin San Anselmo 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-BC288739  Cirsium remotifolium John Thomas Howell 1936-6-7 12631 Marin White's Hill E of San Geronimo Comment
  CAS-BOT-BC288748  Cirsium remotifolium John Thomas Howell 1938-7-3 13942 Marin Near W end of Lucas Valley Comment
  CAS-BOT-BC291182  Erechtites glomeratus John Thomas Howell 1930-12-28 5713 Marin Lower slopes of Mt. Tamalpais, Mill Valley Comment
  CAS-BOT-BC291183  Erechtites glomeratus John Thomas Howell 1929-6-2 4296 Marin Between Fort Baker and Fort Barry Comment
  CAS-BOT-BC291496  Crepis capillaris John Thomas Howell 1944-7-9 19715 Marin South of Tomales Bay Comment
  CAS-BOT-BC292099  Delairea odorata John Thomas Howell 1939-6-25 s.n. Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC29333  Ageratina adenophora J. T. Howell 1929-6-2 4293 Marin Hills above Lime Point Comment
  CAS-BOT-BC298300  Ericameria nauseosa var. speciosa John Thomas Howell 1946-9-8 22994 Marin Along Redwood Highway at St Vincent's Comment
  CAS-BOT-BC301199  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1927-5-8 2373 Marin North side of Mt. Tamalpais Comment
  CAS-BOT-BC30258  Brassica nigra John Thomas Howell 1943-6-6 18196 Marin Between Mill Valley and Muir Woods. Comment
  CAS-BOT-BC30259  Brassica nigra John Thomas Howell 1939-5-21 14691 Marin West side of Tiburon Peninsula. Comment
  CAS-BOT-BC30260  Brassica nigra John Thomas Howell 1944-7-9 19723 Marin South of Tomales Bay. Comment
  CAS-BOT-BC304334  Galinsoga quadriradiata John Thomas Howell 1965-6-29 41369 Marin Garden of Malcolm and Laura Smith, Larkspur Comment
  CAS-BOT-BC304472  Grindelia hirsutula John Thomas Howell 1944-9-3 20717 Marin Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC305886  Helminthotheca echioides John Thomas Howell 1930-6-22 5319 Marin Fort Baker Comment
  CAS-BOT-BC306251  Hemizonia congesta subsp. lutescens John Thomas Howell 1945-9-16 21469 Marin San Rafael Comment
  CAS-BOT-BC306273  Hedypnois cretica John Thomas Howell 1942-5-3 16955 Marin South side of Mt. Tamalpais above Summit Ave. ridge Comment
  CAS-BOT-BC306358  Helenium amarum John Thomas Howell 1946-9-8 22987 Marin Near Ignacio Comment
  CAS-BOT-BC306650  Helenium bigelovii John Thomas Howell 1966-7-20 41988 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC309606  Hemizonia congesta subsp. lutescens John Thomas Howell 1945-9-16 21470 Marin San Rafael Comment
  CAS-BOT-BC309608  Hemizonia congesta subsp. lutescens John Thomas Howell 1946-7-4 22171 Marin Hicks Valley 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-BC311325  Hypochaeris glabra John Thomas Howell 1946-5-12 21806 Marin Carson Ridge Comment
  CAS-BOT-BC311327  Hypochaeris glabra John Thomas Howell 1948-6-6 24333 Marin Bolinas Bay Sand Spit Comment
  CAS-BOT-BC312216  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-BC314440  Grindelia hirsutula John Thomas Howell 1945-7-29 21362 Marin Mouth of Rio Honda north of Bolinas Comment
  CAS-BOT-BC314449  Grindelia hirsutula John Thomas Howell 1930-6-22 5320 Marin Hillsides at Fort Baker Comment
  CAS-BOT-BC321789  Layia gaillardioides John Thomas Howell 1939-6-18 s.n. Marin Mud Lake 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-BC321793  Layia gaillardioides John Thomas Howell 1942-5-17 16960 Marin Ridge above the cascades of San Anselmo Creek Comment
  CAS-BOT-BC322605  Micropus amphibolus John Thomas Howell 1943-5-2 17938 Marin Canyon of San Anselmo Creek above Fairfax Comment
  CAS-BOT-BC322731  Microseris paludosa John Thomas Howell 1944-5-14 19457 Marin Hills near Salmon Creek School Comment
  CAS-BOT-BC323962  Layia chrysanthemoides John Thomas Howell 1970-5-10 46523 Marin Meadow west of Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC323976  Layia chrysanthemoides John Thomas Howell 1946-4-14 21638 Marin Chileno Valley 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-BC32421  Cirsium callilepis John Thomas Howell 1946-5-19 21906 Marin Fairfax Hills, Meadows Club Comment
  CAS-BOT-BC327981  Pentachaeta alsinoides John Thomas Howell 1946-5-16 21865 Marin Laurel Dells, Mt. Tamalpais 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-BC338175  Lasthenia californica John Thomas Howell 1946-5-12 s.n. Marin Carson Ridge west of Meadows Club Comment
  CAS-BOT-BC339141  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-7-29 21334 Marin Bolinas Comment
  CAS-BOT-BC339144  Leontodon saxatilis subsp. saxatilis John Thomas Howell 1945-9-2 21457 Marin San Rafael Hill 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-BC340451  Lactuca saligna John Thomas Howell 1943-9-25 19324 Marin In southern part of Mill Valley 7 Comment
  CAS-BOT-BC340454  Lactuca saligna John Thomas Howell 1943-9-25 19324 Marin In southern part of Mill Valley 7 Comment
  CAS-BOT-BC341991  Lessingia ramulosa John Thomas Howell 1946-9-8 22992 Marin Near Ignacio Comment
  CAS-BOT-BC342070  Leucanthemum maximum John Thomas Howell 1944-9-24 20763 Marin West side of Bolinas Lagoon Comment
  CAS-BOT-BC342400  Logfia gallica John Thomas Howell 1940-5-24 s.n. Marin Little Carson, Chianti country Comment
  CAS-BOT-BC342403  Logfia gallica John Thomas Howell 1929-6-2 4284 Marin Hills at Fort Baker Comment
  CAS-BOT-BC342628  Madia anomala John Thomas Howell 1955-5-29 30256 Marin Near Rock Spring on Laurel Dell Trail, Mt. Tamalpais Comment
  CAS-BOT-BC343619  Madia sativa John Thomas Howell 1939-6-25 s.n. Marin Mill Valley to Eastwood Comment
  CAS-BOT-BC343714  Madia elegans John Thomas Howell 1941-7-16 16377 Marin Near Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC344388  Madia exigua John Thomas Howell 1927-5-8 2378 Marin East slope of 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-BC348748  Microseris bigelovii John Thomas Howell 1947-4-23 23070 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-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-BC349098  Microseris douglasii subsp. tenella John Thomas Howell 1943-5-15 18078 Marin Tiburon Peninsula. [S. end of peninula] Comment
  CAS-BOT-BC35011  Carex densa John Thomas Howell 1966-4-30 41523 Marin John Thomas Howell Botanical Garden, Tiburon. Comment
  CAS-BOT-BC356735  Pseudognaphalium californicum John Thomas Howell 1966-6-9 s.n. Marin John Thomas Howell Botanical Garden, Tiburon. Along road se. of church Comment
  CAS-BOT-BC357049  Pseudognaphalium luteoalbum John Thomas Howell 1988-9-15 s.n. Marin Nicesio [Nicasio] Reservoir Comment
  CAS-BOT-BC357050  Pseudognaphalium luteoalbum John Thomas Howell 1945-5-9 20817 Marin Hamilton Field Comment
  CAS-BOT-BC357449  Pseudognaphalium ramosissimum John Thomas Howell 1945-8-19 21421 Marin Inverness Ridge on Pt. Reyes Road 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-BC365854  Soliva sessilis John Thomas Howell 1947-4-13 s.n. Marin Tiburon Peninsula Comment
  CAS-BOT-BC365858  Soliva sessilis John Thomas Howell 1946-4-18 21653 Marin Ignacio Comment
  CAS-BOT-BC365861  Soliva sessilis John Thomas Howell 1943-6-13 18231 Marin Sausalito hills Comment
  CAS-BOT-BC365866  Soliva sessilis John Thomas Howell 1967-6-8 42548 Marin Pt. Reyes Comment
  CAS-BOT-BC36653  Brassica oleracea John Thomas Howell 1950-5-4 s.n. Marin Mill Valley. Near Tamalpais High School. Comment
  CAS-BOT-BC36924  Cakile maritima var. maritima John Thomas Howell 1943-10-3 19333 Marin Muir Beach. Comment
  CAS-BOT-BC36925  Cakile maritima var. maritima John Thomas Howell 1943-10-3 19333 Marin Muir Beach. Comment
  CAS-BOT-BC372298  Layia platyglossa John Thomas Howell 1966-4-18 41490 Marin Tiburon Comment
  CAS-BOT-BC374632  Sonchus oleraceus John Thomas Howell 1945-9-16 21471 Marin San Rafael Comment
  CAS-BOT-BC374639  Sonchus oleraceus J. T. Howell 1990-9-28 s.n. Marin Terra Linda - in weedy Northgate planter 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-BC376943  Taraxacum officinale John Thomas Howell 1945-10-28 s.n. Marin Bolinas Lagoon Comment
  CAS-BOT-BC379006  Ranunculus aquatilis var. diffusus John Thomas Howell 1947-6-18 23257 Marin Laguna, Chileno Valley Comment
  CAS-BOT-BC384005  Mirabilis jalapa John Thomas Howell 1969-6-30 45865 Marin Bordering estuary of San Rafael Creek at Irwin St. bridge, San Rafael Comment
  CAS-BOT-BC384489  Silene antirrhina John Thomas Howell 1942-7-5 17011 Marin Matt Davis Trail, Mt. Tamalpais Comment
  CAS-BOT-BC384572  Silene coniflora John Thomas Howell 1946-5-12 21798 Marin Carson Ridge Comment
  CAS-BOT-BC384585  Silene coniflora John Thomas Howell 1942-7-5 17013 Marin Matt Davis Trail, 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-BC388311  Cerastium glomeratum John Thomas Howell 1946-4-18 s.n. Marin Ignacio Comment
  CAS-BOT-BC388314  Cerastium glomeratum John Thomas Howell 1975-3-20 51015 Marin Bear Valley, National Seashore, Pt. Reyes Peninsula Comment
  CAS-BOT-BC389959  Spergula arvensis John Thomas Howell 1944-7-23 19851 Marin Santa Venetia Comment
  CAS-BOT-BC390149  Spergularia bocconi John Thomas Howell 1946-5-16 21880 Marin Angel Island, s. side Comment
  CAS-BOT-BC390150  Spergularia bocconi John Thomas Howell 1944-9-24 20744 Marin Stinson Beach Comment
  CAS-BOT-BC390537  Spergularia media John Thomas Howell 1945-8-19 21429 Marin At head of Drakes Bay Comment
  CAS-BOT-BC390539  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-BC390624  Spergularia rubra John Thomas Howell 1933-4-1 10920 Marin 4.5 miles n. of San Rafael Comment
  CAS-BOT-BC391006  Spergularia villosa John Thomas Howell 1944-6-25 19643 Marin Santa Venetia 7 Comment
  CAS-BOT-BC391008  Spergularia villosa John Thomas Howell 1946-5-16 21894 Marin Angel Island, n. side Comment
  CAS-BOT-BC391010  Spergularia villosa John Thomas Howell 1941-6-10 16276 Marin Near Black Point Comment
  CAS-BOT-BC397714  Stellaria nitens John Thomas Howell 1946-3-24 21561 Marin Fairfax Hills Comment
  CAS-BOT-BC401243  Hypericum perforatum John Thomas Howell 1939-7-2 14843 Marin Just south of Muir Woods Comment
  CAS-BOT-BC401394  Hypericum scouleri John Thomas Howell 1947-7-6 23322 Marin Between Rock Spring and Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC413681  Persicaria capitata J. T. Howell 1987-7-30 s.n. Marin Community vegetable garden, Nova Albion St. across from Cermenho Ct. Comment
  CAS-BOT-BC414005  Polygonum aviculare subsp. aviculare John Thomas Howell 1943-10-3 19332 Marin Muir Beach Comment
  CAS-BOT-BC414007  Polygonum aviculare subsp. aviculare John Thomas Howell 1939-7-2 14814 Marin Border of Almonte salt marsh Comment
  CAS-BOT-BC414009  Polygonum aviculare subsp. aviculare John Thomas Howell 1945-7-15 21291 Marin Fairfax Comment
  CAS-BOT-BC414011  Polygonum aviculare subsp. aviculare John Thomas Howell 1939-6-25 14812 Marin Cascade Canyon, Mill Valley Comment
  CAS-BOT-BC418823  Fagopyrum esculentum J. T. Howell 1987-11-7 s.n. Marin Community Vegetable Garden, Nova Albion St. across from Cermenho Ct., San Rafael Comment
  CAS-BOT-BC419019  Persicaria lapathifolia John Thomas Howell 1959-11-4 s.n. Marin Stinson Beach Comment
  CAS-BOT-BC419801  Polygonum marinense John Thomas Howell 1949-5-22 25326 Marin At head of Drakes Estero Comment
  CAS-BOT-BC419804  Polygonum marinense John Thomas Howell 1945-7-8 21282 Marin Burdell Comment
  CAS-BOT-BC419845  Polygonum patulum John Thomas Howell 1945-7-8 21284 Marin San Antonio Station Comment
  CAS-BOT-BC420285  Boykinia occidentalis John Thomas Howell 1947-6-15 s.n. Marin Side canyon to Bootjack Canyon, Mt. Tamalpais Comment
  CAS-BOT-BC420981  Polygonum spergulariiforme John Thomas Howell 1946-9-20 23021 Marin East of Dillons Beach Comment
  CAS-BOT-BC421767  Rumex conglomeratus John Thomas Howell 1939-5-14 s.n. Marin Ross Comment
  CAS-BOT-BC421964  Rumex acetosella John Thomas Howell 1966-4-18 41483 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC422282  Rumex californicus John Thomas Howell 1943-9-19 19328 Marin Escalle Comment
  CAS-BOT-BC427587  Crassula aquatica John Thomas Howell 1945-5-9 20857 Marin Near Hamilton Field Comment
  CAS-BOT-BC428127  Dudleya cymosa subsp. cymosa John Thomas Howell 1939-8-27 15323 Marin Fish Grade between Phoenix Lake and Lake Lagunitas Comment
  CAS-BOT-BC433255  Rumex crispus John Thomas Howell 1953-7-2 s.n. Marin Tamalpais Valley Comment
  CAS-BOT-BC433456  Rumex crispus John Thomas Howell 1945-5-20 20875 Marin Tiburon Comment
  CAS-BOT-BC433664  Rumex obtusifolius John Thomas Howell 1943-7-4 18278 Marin Inverness Comment
  CAS-BOT-BC433666  Rumex obtusifolius John Thomas Howell 1943-7-4 18278 Marin Inverness Comment
  CAS-BOT-BC433717  Rumex occidentalis John Thomas Howell 1946-6-30 22126 Marin East of Rodeo Lagoon Comment
  CAS-BOT-BC433722  Rumex occidentalis John Thomas Howell 1945-10-28 s.n. Marin Head of Bolinas Lagoon Comment
  CAS-BOT-BC433723  Rumex occidentalis John Thomas Howell 1939-6-5 s.n. Marin Pt. Reyes Dunes Comment
  CAS-BOT-BC433745  Rumex persicarioides John Thomas Howell 1959-9-10 34608 Marin Bolinas Comment
  CAS-BOT-BC433784  Rumex pulcher John Thomas Howell 1949-6-26 25351 Marin Deer Park, Fairfax hills Comment
  CAS-BOT-BC433932  Rumex salicifolius John Thomas Howell 1944-6-28 19635 Marin San Rafael Comment
  CAS-BOT-BC433933  Rumex salicifolius John Thomas Howell 1947-7-6 23323 Marin Laurel Dell, Mt. Tamalpais Comment
  CAS-BOT-BC434103  Rumex transitorius John Thomas Howell 1939-8-27 15304 Marin Ross Comment
  CAS-BOT-BC434105  Rumex transitorius John Thomas Howell 1943-5-30 18178 Marin Summit Ave., Mill Valley Comment
  CAS-BOT-BC434107  Rumex transitorius John Thomas Howell 1941-6-10 16303 Marin 9 mi. w. of Novato Comment
  CAS-BOT-BC434109  Rumex transitorius John Thomas Howell 1939-8-27 15305 Marin Ross Comment
  CAS-BOT-BC434116  Rumex transitorius John Thomas Howell 1946-6-13 22021 Marin Chileno Valley Comment
  CAS-BOT-BC435002  Glinus lotoides John Thomas Howell 1956-9-13 31875 Marin Strand of Bon Tempe Reservoir 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-BC436394  Calystegia collina subsp. collina John Thomas Howell 1939-5-14 14679 Marin Mt. Tamalpais, near Rifle Camp 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-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-BC436500  Ligusticum apiifolium John Thomas Howell 1941-6-8 16262 Marin Hills NE of San Rafael Comment
  CAS-BOT-BC436502  Ligusticum californicum John Thomas Howell 1946-6-30 22160 Marin Rodeo Lagoon Comment
  CAS-BOT-BC439219  Claytonia exigua subsp. exigua John Thomas Howell 1945-4-29 s.n. Marin Above Camp Handy, Mt. Tamalpais Comment
  CAS-BOT-BC439225  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-24 21559 Marin Fairfax Hills Comment
  CAS-BOT-BC439227  Claytonia exigua subsp. exigua John Thomas Howell 1946-3-24 21578 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-BC441317  Luzula subsessilis John Thomas Howell 1969-4-27 45557 Marin Near west end of Lucas Valley 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-BC444904  Montia fontana John Thomas Howell 1944-3-26 s.n. Marin Sedum Swamp, Mt. Reyes Peninsula Comment
  CAS-BOT-BC444988  Montia fontana John Thomas Howell 1949-4-6 25295 Marin Hamilton Field Comment
  CAS-BOT-BC445386  Alisma plantago-aquatica John Thomas Howell 1944-7-9 19718 Marin South of Tomales Bay Comment
  CAS-BOT-BC445388  Alisma plantago-aquatica John Thomas Howell 1945-5-9 20836 Marin Between Hamilton Field and Ignacio Comment
  CAS-BOT-BC445632  Sagittaria brevirostra John Thomas Howell 1947-6-18 23261 Marin Laguna, Chileno Valley Comment
  CAS-BOT-BC45019  Ambrosia psilostachya John Thomas Howell 1945-9-2 21449 Marin San Rafael 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-BC451833  Triglochin maritima John Thomas Howell 1944-7-9 19710 Marin South end of Tomales Bay 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-BC452038  Phyllospadix torreyi John Thomas Howell 1943-10-3 19331 Marin On Muir Beach 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-BC453861  Potamogeton nodosus John Thomas Howell 1939-8-27 15319 Marin Phoenix Lake Comment
  CAS-BOT-BC454105  Ruppia cirrhosa John Thomas Howell 1943-10-3 19334 Marin Muir Beach Comment
  CAS-BOT-BC457535  Aphanes occidentalis John Thomas Howell 1966-4-6 41461 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC460616  Pyrola aphylla John Thomas Howell 1940-5-12 15410 Marin Woods south of Lagunitas Comment
  CAS-BOT-BC460759  Allium amplectens John Thomas Howell 1943-5-30 18186 Marin Northside Trail, Mt. Tamalpais Comment
  CAS-BOT-BC460760  Allium amplectens John Thomas Howell 1945-5-27 20884 Marin Northside of Mountain Theater, Mount Tamalpais Comment
  CAS-BOT-BC468976  Allium dichlamydeum John Thomas Howell 1946-5-16 21881 Marin Angel Island, on west side Comment
  CAS-BOT-BC472707  Allium lacunosum var. lacunosum John Thomas Howell 1972-6-18 48865 Marin Near Ring Hill, Tiburon Peninsula 167 Comment
  CAS-BOT-BC472779  Allium neapolitanum John Thomas Howell 1958-4-11 33015 Marin San Rafael Comment
  CAS-BOT-BC476633  Allium unifolium John Thomas Howell 1945-6-24 21239 Marin Willow Meadow. Mt. Tamalpais. Comment
  CAS-BOT-BC483568  Calochortus tolmiei John Thomas Howell 1946-4-21 21697 Marin Near Ledram Swamp, Pt. Reyes Peninsula Comment
  CAS-BOT-BC484617  Brodiaea terrestris subsp. terrestris John Thomas Howell 1941-6-10 16296 Marin 9 mi. w. of Novato Comment
  CAS-BOT-BC497595  Camassia quamash subsp. linearis John Thomas Howell 1946-4-21 21679 Marin Swale near radio station, Pt. Reyes Peninsula Comment
  CAS-BOT-BC497690  Chlorogalum pomeridianum John Thomas Howell 1966-7-20 41985 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC497695  Chlorogalum pomeridianum John Thomas Howell 1944-7-23 19845 Marin Santa Venetia Comment
  CAS-BOT-BC499304  Chlorogalum pomeridianum var. divaricatum John Thomas Howell 1942-7-12 17016 Marin Azalea Flat, Matt Davis Trail. 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-BC502765  Orobanche bulbosa John Thomas Howell 1945-5-27 20887 Marin Mt. Tamalpais: Rock Spring Trail Comment
  CAS-BOT-BC515556  Muilla maritima John Thomas Howell 1946-5-5 21756 Marin Point Reyes Peninsula Comment
  CAS-BOT-BC516212  Calystegia purpurata subsp. purpurata John Thomas Howell 1947-5-8 23140 Marin Sausalito Comment
  CAS-BOT-BC516325  Prosartes hookeri John Thomas Howell 1925-4-5 952 Marin Pipeline Trail 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-BC527395  Zigadenus fontanus John Thomas Howell 1966-7-20 41983 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC530473  Zigadenus fontanus John Thomas Howell 1966-7-20 41984 Marin John Thomas Howell Botanical Garden, Tiburon Comment
  CAS-BOT-BC534921  Lemna turionifera John Thomas Howell 1944-10-10 20714 Marin Marshes north of Olema Comment
  CAS-BOT-BC536634  Horkelia californica John Thomas Howell 1939-7-2 14824 Marin Elk Valley Comment
  CAS-BOT-BC536640  Horkelia californica John Thomas Howell 1930-6-22 5323 Marin Rodeo Lagoon 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-BC540140  Malus pumila John Thomas Howell 1950-11-4 35106 Marin Single roadside seedling, Frank Valley 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-BC57545  Equisetum telmateia John Thomas Howell 1945-4-29 20779 Marin Phoenix Lake Comment
  CAS-BOT-BC57879  Equisetum X ferrissii John Thomas Howell 1944-9-24 20760 Marin W. side Bolinas Lagoon. Comment
  CAS-BOT-BC57904  Equisetum arvense John Thomas Howell 1949-4-27 25310 Marin S. of Tomales. Comment
  CAS-BOT-BC57913  Equisetum arvense John Thomas Howell 1940-5-12 15415 Marin Lagunitas Creek. Comment
  CAS-BOT-BC60415  Nasturtium officinale John Thomas Howell 1945-10-28 21549 Marin Marsh bordering Bolinas Lagoon. Comment
  CAS-BOT-BC60416  Nasturtium officinale John Thomas Howell 1946-6-30 22130 Marin Marsh east of Rodeo Lagoon. Comment
  CAS-BOT-BC63781  Sedum radiatum subsp. radiatum John Thomas Howell 1941-6-10 16309 Marin Summit between Lucas and Gallinas Valleys 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-BC66350  Cheilanthes covillei John Thomas Howell 1959-8-23 34598 Marin nw. of Bootjack, Mt. Tamalpais Comment
  CAS-BOT-BC66359  Cheilanthes covillei John Thomas Howell 1958-6-15 33629 Marin nw. of Bootjack and s. of Rock Spring, Mt. Tamalpais Comment
  CAS-BOT-BC67585  Pellaea mucronata John Thomas Howell 1926-12-8 2259 Marin Near Phoenix Lake Comment
  CAS-BOT-BC68173  Cheilanthes intertexta John Thomas Howell 1943-1-17 17877 Marin Mt. Tamalpais - Collier springs and Rifle Camp Comment
  CAS-BOT-BC69878  Isoetes nuttallii John Thomas Howell 1947-5-25 23203 Marin Mt. Tamalpais. Comment
  CAS-BOT-BC69913  Isoetes howellii John Thomas Howell 1947-5-25 23204 Marin Willow Meadow, Mt. Tamalpais. Comment
  CAS-BOT-BC72190  Polystichum dudleyi John Thomas Howell 1948-5-22 24308 Marin Camp Tucker, Mt. Tamalpais Comment
  CAS-BOT-BC74284  Raphanus sativus John Thomas Howell 1966-5-25 41541 Marin Tiburon. John Thomas Howell Botanical Garden. Just north of garden area. Comment
  CAS-BOT-BC74285  Raphanus sativus John Thomas Howell 1966-4-18 41517 Marin Tiburon. Just north of John Thomas Howell Botanical Garden. 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-BC83517  Carex densa John Thomas Howell 1986-4-23 s.n. Marin San Rafael. Nova Albion Way near Golden Hinde Blvd.. Above Sears. Comment
  CAS-BOT-BC89528  Lepidium lasiocarpum John Thomas Howell 1949-5-25 25339 Marin Point Reyes Peninsula. Comment
  CAS-BOT-BC99133  Symphyotrichum chilense John Thomas Howell 1933-10-8 11700 Marin 1 mile east of Forest Knolls Comment
  CAS-BOT-BC99137  Symphyotrichum chilense John Thomas Howell 1943-9-5 19318 Marin Mill Valley salt marshes Comment
  CAS-BOT-BC99138  Symphyotrichum chilense John Thomas Howell 1965-10-13 41411 Marin John Thomas Howell Botanical Garden, Tiburon, only in eastern seepages 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
  CDA3327  Mirabilis jalapa J. T. Howell 1969-6-3 45865 Marin Irwin Street bridge, San Rafael . 0 Comment
  CDA3627  Barbarea verna J. T. Howell 1975-6-29 51325 Marin Goodhill Road at Diablo, Kentfield. 0 Comment
  CDA3817  Lepidium pinnatifidum J. T. Howell 1976-6-2 51804 Marin Corte Madera. 0 Comment
  CDA40347  Phacelia californica J. T. Howell 1938-6-5 13894 Marin Mt. Tamalpais, between Fern Canyon and Azalea Flat. 0 Comment
  CDA4653  Geranium potentilloides J. T. Howell 1969-4-2 45514 Marin Point Reyes National Seashore, Meadow Trail to Mt. Wittenberg. 0 Comment
  CDA4704  Oxalis micrantha J. T. Howell 1946-6-2 22099 Marin Stinson Beach. 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
  JEPS58877  Heterocodon rariflorum John Thomas Howell 1946-6-2 21974 Marin Rocky Ridge Fire Trail Mt. Tamalpais (Mt. Tamalpais) Comment
  LA208414  Galium californicum subsp. californicum John Thomas Howell; 1930-7-20 5385 Marin Mt. Tamalpais on SE side. Comment
  LA210112  Cuscuta subinclusa John Thomas Howell; 1930-10-5 5525 Marin 2 mi W of Marin-Sonoma Co. line Comment
  NY20768  Torreya californica J. T. Howell 1948-5-16 24303 Marin This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM193918  Platystemon californicus var. californicus J. T. Howell 1930-4-20 4734 Marin Pt. Reyes. Comment
  POM193961  Maianthemum racemosum subsp. amplexicaule J. T. Howell 1927-9-9 3090 Marin Mill Valley Comment
  POM193966  Hesperevax sparsiflora var. sparsiflora J. T. Howell 1930-4-20 4720 Marin 1 mile east of Lagunitas Comment
  POM193968  Lomatium dasycarpum subsp. dasycarpum J. T. Howell 1930-4-20 4718 Marin 1 mile east of Lagunitas Comment
  POM194215  Sanicula laciniata J. T. Howell 1927-3-20 2290 Marin Cote Madera Ridge 305 Comment
  POM196443  Luzula comosa J. T. Howell 1927-3-13 2285 Marin Point San Quentin. Comment
  POM196452  Madia exigua J. T. Howell 1927-5-8 2378 Marin East slope of Mt. Tamalpais Comment
  POM196463  Lathyrus vestitus subsp. vestitus J. T. Howell 1925-1-18 730 Marin Near San Rafael. Comment
  POM203146  Aster chilensis J. T. Howell 1933-10-8 11708 Marin Pt. Reyes Peninsula Comment
  POM203151  Lessingia hololeuca John T. Howell 1933-10-8 11698 Marin 1.5 miles east of Forest Knolls 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
  POM230565  Leptosiphon androsaceus J. T. Howell 1937-6-13 13052 Marin Bolinas Comment
  POM259272  Plantago truncata subsp. firma J. T. Howell 1940-4-14 15396 Marin San Anselmo Creek Canyon. Comment
  POM261377  Cirsium quercetorum J. T. Howell 1939-6-18 14774 Marin Near Mud Lake Comment
  POM273083  Carduus pycnocephalus J. T. Howell 1946-5-4 21754 Marin Along Redwood Highway near Burdell Comment
  POM273112  Anthoxanthum aristatum J. T. Howell 1945-5-9 20856 Marin between Hamilton Field and Ignacio, Marin County Comment
  POM273137  Heterotheca oregona var. rudis J. T. Howell 1945-9-16 21498 Marin North of San Rafael and east of Santa Venetia Comment
  POM273143  Trifolium gracilentum J. T. Howell 1946-4-18 21662 Marin Novato. Comment
  POM303725  Amaranthus deflexus J. T. Howell 1944-7-23 19852 Marin Along sidewalks, San Rafael. 15 Comment
  POM303726  Verbena incompta J. T. Howell 1943-9-5 19323 Marin In southern part of Mill Valley. 8 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
  RSA0014501  Carex mendocinensis J. T. Howell, J. W. Stacey 1936-6-7 12658 Marin Serpentine area near Bootjack, Mt. Tamalpais Comment
  RSA0014514  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
  RSA0029461  Geranium solanderi J. T. Howell 1944-7-9 19714 Marin South of Tomales Bay Comment
  RSA0034598  Parapholis incurva J. T. Howell 1945-5-6 20816 Marin San Rafael. Comment
  RSA0059442  Orobanche fasciculata John Thomas Howell 1927-5-8 2377 Marin East slope of Mt. Tamalpais. Comment
  RSA0059502  Claytonia gypsophiloides J. T. Howell 1945-4-29 20795 Marin Serpentine ridge W of Camp Handy, Mt. Tamalpais Comment
  RSA0059931  Clarkia rubicunda J. T. Howell 1946-6-30 22131 Marin Valley east of Rodeo Lagoon. Comment
  RSA0070566  Cirsium andrewsii J. T. Howell 1939-7-2 14818 Marin Elk Valley, east of Tennessee Cove. 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
  RSA0079898  Carex brevicaulis John Thomas Howell 1946-4-21 21683 Marin Sandy down near radio station, Pt. Reyes Peninsula. Comment
  RSA0089643  Amsinckia intermedia J. T. Howell 1933-4-30 11199 Marin Phoenix Lake. 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
  RSA0109096  Stachys pycnantha J. T. Howell 1937-7-4 13091 Marin Tiburon. Comment
  RSA0121905  Streptanthus glandulosus subsp. pulchellus J. T. Howell 1946-5-12 21815 Marin Carson Country Comment
  RSA102193  Castilleja ambigua subsp. ambigua J. T. Howell, G. Thomas Robbins 1945-5-9 1899 Marin 0.5 mile north of Hamilton Field Air Base. Ca. sea level. 0 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
  RSA118072  Madia anomala J. T. Howell 1955-5-29 30256 Marin Near Rock Spring on Laurel Dell Trail, Mt. Tamalpais 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
  RSA126207  Vicia angustifolia J. T. Howell s.n. Marin Stinson Beach Comment
  RSA126459  Agrostis densiflora J. T. Howell 1946-6-30 22146 Marin Rodeo Lagoon 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
  RSA126546  Microseris douglasii subsp. douglasii J. T. Howell 1941-5-25 16221 Marin Potrero Meadow, Mt. Tamalpais Comment
  RSA126548  Layia chrysanthemoides J. T. Howell 1946-4-18 21678 Marin Novato. Comment
  RSA126549  Madia anomala J. T. Howell 1941-6-10 16284 Marin Black Point Comment
  RSA127056  Potamogeton foliosus J. T. Howell 1946-8-23 22893 Marin Pierce Point Road, Point Reyes Peninsula. Comment
  RSA127064  Juncus covillei J. T. Howell 1946-7-7 s.n. Marin Potrero Meadow, Mt. Tamalpais. Comment
  RSA127068  Juncus mexicanus J. T. Howell 1947-5-18 23183 Marin Lagunitas Meadows. Comment
  RSA127069  Juncus xiphioides J. T. Howell 1939-10-1 15365 Marin Lake Lagunitas. Comment
  RSA127090  Achillea millefolium John T. Howell 1945-7-29 s.n. Marin Bolinas. Comment
  RSA127091  Polygonum patulum J. T. Howell 1945-7-8 21284 Marin San Antonio Staion Comment
  RSA127096  Lasthenia californica J. T. Howell 1947-4-30 23115 Marin Dillon's Beach. Comment
  RSA127209  Ranunculus orthorhynchus var. bloomeri J. T. Howell 1946-2-16 21556 Marin Kentfield Hills, bordering salt marshes Comment
  RSA127213  Lithophragma heterophyllum John T. Howell 1946-5-12 21820 Marin Carson Country Comment
  RSA127247  Paspalum dilatatum J. T. Howell 1945-8-5 21364 Marin McKinnan's Landing near Stinson Beach Comment
  RSA127363  Amaranthus deflexus J. T. Howell 1939-10-1 s.n. Marin Ross Comment
  RSA128310  Lotus humistratus J. T. Howell 1940-5-12 s.n. Marin San Anselmo Canyon, Mt. Tamalpais. Comment
  RSA128311  Myriophyllum hippuroides J. T. Howell 1946-6-20 s.n. Marin 2 miles south of Olema. Comment
Read comments Aug 2 2010
  RSA128319  Trifolium albopurpureum J. T. Howell 1945-5-6 20807 Marin San Rafael Hill Comment
  RSA128809  Gnaphalium palustre J. T. Howell 1946-8-23 22894 Marin Pierce Point Road, Point Reyes Peninsula. Comment
  RSA128882  Filago californica J. T. Howell 1939-5-14 s.n. Marin West Point, Mt. Tamalpais Comment
  RSA128924  Stephanomeria virgata J. T. Howell 1945-9-2 21456 Marin San Rafael Hills Comment
  RSA128925  Trifolium oliganthum J. T. Howell 1947-4-27 23080 Marin Bald Mt. west of San Anselmo Comment
  RSA128926  Trifolium barbigerum J. T. Howell 1940-5-20 15504 Marin Point Reyes Comment
  RSA128929  Medicago polymorpha J. T. Howell 1948-9-5 s.n. Marin Mill Valley Comment
  RSA128943  Centaurea calcitrapa J. T. Howell 1939-9-3 15342 Marin Near Novato Comment
  RSA201404  Cuscuta campestris J. T. Howell 1946-9-20 23013 Marin Chileno Valley Comment
  RSA201505  Juncus kelloggii J. T. Howell 1967-6-8 42549 Marin northern Nat l Seashore beach area, Pont Reyes Peninsula Comment
Read comments Feb 27 2013
  RSA216172  Triglochin maritima J. T. Howell 1957-9-15 32960 Marin Larkspur Comment
  RSA216197  Trifolium microdon J. T. Howell 1966-4-18 41500 Marin John Thomas Howell Botanical Garden, Tiburon. Comment
  RSA220018  Orthocarpus faucibarbatus J. T. Howell 1969-5-5 45572 Marin Ring Hill, Tiburon Peninsula. 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
  RSA31411  Oenothera elata subsp. hookeri J. T. Howell 1945-6-30 21254 Marin Stinson Beach. Comment
  RSA31416  Clarkia rubicunda J. T. Howell 1946-6-30 22131 Marin Valley east of Rodeo Lagoon. 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
  RSA31420  Epilobium brachycarpum J. T. Howell 1946-9-20 23019 Marin Chileno Valley Comment
  RSA32127  Leontodon taraxacoides subsp. taraxacoides J. T. Howell 1945-7-29 21333 Marin Bolinas. Comment
  RSA32136  Ludwigia hexapetala J. T. Howell 1945-7-1 21259 Marin Tiburon. Comment
  RSA32266  Trifolium bifidum var. decipiens J. T. Howell 1946-4-18 21661 Marin Novato. Comment
  RSA32267  Vicia hassei J. T. Howell 1946-4-18 21658 Marin Novato. Comment
  RSA32279  Silene multinervia J. T. Howell 1946-5-30 21963 Marin Little Carson Canyon. Comment
  RSA32479  Lagophylla ramosissima J. T. Howell 1945-9-2 21453 Marin San Rafael Hills. Comment
  RSA32496  Gnaphalium beneolens J. T. Howell 1945-9-2 21455 Marin San Rafael Hills 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
  RSA40164  Plantago truncata subsp. firma J. T. Howell 1944-5-21 19500 Marin Lagunitas Meadows north side of Mount Tamalpais. 244 Comment
  RSA43306  Scrophularia californica J. T. Howell 1948-6-6 24331 Marin Bolinas Bay Sand Spit. Comment
  RSA44356  Lathyrus torreyi J. T. Howell 1940-5-12 15424 Marin Between Little Carson and Carson Ridge. Comment
  RSA44357  Lathyrus tingitanus J. T. Howell 1944-6-25 44357 Marin San Rafael 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
  RSA51279  Erodium brachycarpum J. T. Howell 1947-4-23 23075 Marin East side of Drakes Estero, Point Reyes Peninsula. Comment
  RSA51937  Carex amplifolia J. T. Howell 1946-6-30 22127 Marin East of Rodeo Lagoon. Comment
  RSA51944  Carex subbracteata J. T. Howell 1945-5-27 20883 Marin Northeast of Mountain Theater, Mt. Tamalpais. Comment
  RSA51945  Carex subbracteata J. T. Howell 1943-5-22 18158 Marin Lagunitas Meadows. Comment
  RSA51946  Carex harfordii J. T. Howell 1946-6-2 21968 Marin Potrero Meadow, Mt. Tamalpais. Comment
  RSA52003  Carex bolanderi J. T. Howell 1944-6-4 19540 Marin Inverness Ridge west of Inverness. 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
  RSA55726  Geranium retrorsum J. T. Howell 1944-5-7 19440 Marin Baltimore Park. Comment
  RSA584266  Lepidium sativum J. T. Howell 1986-10-29 s.n. Marin Growing in the Terra Linda Vegetable Garden at Nova Albion and Cermenho Ct., Terra Linda, San Rafael. Comment
  RSA67157  Galium californicum subsp. californicum J. T. Howell 1930-7-20 5381 Marin Just S of Phoenix Lake. Comment
  RSA70481  Oxalis laxa J. T. Howell 1946-6-20 22099 Marin Stinson Beach. Comment
  RSA7692  Calystegia purpurata J. T. Howell 1933-4-30 11197 Marin North side of Mt. Tamalpais. Comment
  RSA78616  Streptanthus glandulosus J. T. Howell 1944-5-21 19488 Marin South side of Phoenix Lake, Mt Tamalpais. Comment
  RSA80296  Orthocarpus faucibarbatus J. T. Howell 1930-4-20 4719 Marin 1 mile east of Lagunitas. Comment
  RSA88330  Campanula angustiflora J. T. Howell 1946-6-2 21975 Marin Rocky Ridge Fire Trail, Mt. tamalpais. Comment
  RSA88332  Campanula griffinii J. T. Howell 1946-7-7 22198 Marin South of Barths Retreat, Mt. Tamalpais. Comment
  RSA90937  Trifolium fucatum var. fucatum J. T. Howell 1946-4-18 21647 Marin Ignacio. Comment
  RSA91164  Lessingia hololeuca John T. Howell 1945-9-2 s.n. Marin San Rafael Hills Comment
  RSA91166  Lessingia hololeuca John T. Howell 1926-9-9 2192 Marin Baltimore Park 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
  RSA91904  Phalaris aquatica J. T. Howell 1945-8-12 21381 Marin Tiburon. Comment
  RSA91914  Parapholis incurva J. T. Howell 1945-5-6 20816 Marin San Rafael. Comment
  RSA92244  Layia gaillardioides J. T. Howell 1933-4-30 11192 Marin North side of Mt. Tamalpais. Comment
  RSA92968  Chorizanthe cuspidata var. villosa J. T. Howell 1946-6-9 21999 Marin Abbott's Lagoon Comment
  RSA93382  Calamagrostis rubescens J. T. Howell 1945-8-12 21377 Marin Cascade Canyon, Mill Valley Comment
  RSA95263  Sidalcea hickmanii subsp. viridis J. T. Howell 1942-6-21 16997 Marin Carson Ridge Comment
Read comments Jan 8 2009
  RSA98048  Bromus stamineus J. T. Howell 1953-7-5 29105 Marin East Peak, Mt. Tamalpias Comment
  RSA98049  Aegilops triuncialis J. T. Howell 1953-7-5 29107 Marin East Peak, Mt. Tamalpais. Comment
  RSA99633  Setaria pumila J. T. Howell 1954-10-21 30112 Marin Roadside hollow near Bootjack, Mt. Tamalpais Comment
  SBBG40154  Hydrocotyle ranunculoides J. T. Howell 1946-6-20 Marin near Stinson Beach 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
  SEINET1007908  Verbena incompta John Thomas Howell 1943-1 19323 Marin Waste places in southern part of Mill Valley. 8 Comment
  SEINET10460709  Heterocodon rariflorum Howell Howell 21974 Marin MT TAMALPAIS, ROCKY RIDGE FIRE TRAIL Comment
  SEINET10460711  Heterocodon rariflorum Howell Howell 16330 Marin MT. TAMAULPAIS, ROCK SPRING Comment
  SEINET10506825  Agrostis John Thomas Howell 1947-5-14 Howell 23149 Marin Drakes Estero, WNW of Mount Vision. Restricted to gravelly slope on outcrop of diatomaceous shale of Monterey Series. Type collection. Comment
  SEINET10515270  Calamagrostis purpurascens John Thomas Howell 1947-5-18 Howell 23176 Marin On serpentine at south end of Carson Ridge. Comment
  SEINET10520183  Bromus carinatus John Thomas Howell 1945-6-24 Howell s.n. Marin Mt. Tamalpais, Marin County. Comment
  SEINET10521058  Calamagrostis koelerioides John Thomas Howell 1949-6-26 Howell 25352 A Marin First rail north of East Peak. Mt. Tamalpais. Comment
  SEINET10524296  Deschampsia elongata John Thomas Howell 1944-6-25 Howell 19660 Marin Salt marsh between Santa Venetia and Chinese Camp. 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
  SEINET10603877  Stipa lepida var. andersonii John Thomas Howell 1944-5-14 Howell 19469 Marin Salmon Creek Canyon. Comment
  SEINET10604441  Vulpia microstachys var. ciliata John Thomas Howell 1945-5-27 Howell 20882 Marin Northeast of Mountain Theater, Mt. Tamalpais. Comment
  SEINET10604454  Vulpia microstachys var. pauciflora John Thomas Howell 1943-5-15 Howell 18092 Marin Tiburon Peninsula. Comment
  SEINET10605892  Sitanion hansenii John Thomas Howell 1946-5-16 Howell 21887 Marin Angel Island Comment
  SEINET10610160  Leymus X multiflorus John Thomas Howell 1943-9-5 Howell 19314 Marin Between Tamalpais Valley and Tamalpais Hig School. Comment
  SEINET10612355  Sequoia sempervirens John Thomas Howell Howell 32020 Marin Fern Canyon, Mt. Tamalpais. Short-leaved branchlets from 15-foot individual on exposed slope in the chaparral, the longer-leaved branchlets from hundred-foot trees in moist protected canyon. From California Academy of Sciences. Comment
  SEINET10660063  Phalaris aquatica John Thomas Howell 1945-8-12 Howell 21381 Marin Subsaline flat above salt marsh, Tiburon 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
  SEINET10789851  Agrostis californica John Thomas Howell 1946-6-30 Howell 22146 Marin Rodeo Lagoon. Comment
  SEINET10789992  Agrostis exarata John Thomas Howell 1945-7-1 Howell 21264 Marin Tiburon. Comment
  SEINET10828049  Hordeum californicum John Thomas Howell 1947-4-23 Howell 23068 Marin Drakes Estero west of Mt. Vision. Comment
  SEINET10864621  Elymus glaucus John Thomas Howell 1943-5-9 Howell 17943 Marin San Rafael. Comment
  SEINET10893288  Stipa pulchra John Thomas Howell 1944-5-21 Howell s.n. Marin Phoenix Lake, Mt. Tamalpais 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
  SEINET10926504  Polypogon interruptus John Thomas Howell 1939-5-21 Howell s.n. Marin W. Tburan, Mt. Tamalpais. Comment
  SEINET10968036  Agrostis hallii John Thomas Howell 1947-6-18 Howell 23284 Marin North of Dillons Beach. 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
  SEINET12896494 Image available Lupinus tidestromii var. layneae J. T. Howell 1939-1 14729 Marin Point Reyes Peninsula Comment
  SEINET13942634 Image available Ribes menziesii John Thomas Howell 1946-1 21613 Marin Near Tomales Comment
  SEINET13945881 Image available Ceanothus foliosus John Thomas Howell 1948-1 24298 Marin Upper part of Cascade Canyon, Mt. Tamalpais Comment
  SEINET13948728 Image available Monardella villosa John Thomas Howell 1942-1 17009 Marin Fern Canyon, Mt. Tamalpais 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
  SEINET3404071 Image available Polygonum spergulariiforme John Thomas Howell 1946-9-20 23021 Marin East of Wilkins Beach Comment
  SEINET3560013 Image available Lotus strigosus John Thomas Howell 1949-5-16 21869 Marin Angel Island, south side Comment
  SEINET3901320  Carex globosa John Thomas Howell 1945-6-3 20932 Marin Shell Beach, CA.; 0 Comment
  SEINET4183201  Chorizanthe valida J. T. Howell, C. Best, W. Follette, G. True 1980-1 Marin Comment
  SEINET7546835  Agrostis aristiglumis J. T. Howell 1947-1 AGNH 1411 Marin Drakes Estero, WNW of Mt. Vision Comment
  SEINET7559871 Image available Carex globosa John Thomas Howell 1946-5-14 21843 Marin Portrero 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
  UC1106078  Bolboschoenus maritimus John Thomas Howell 1945-8-19 21438 Marin At head of Drakes Bay. Comment
  UC1106305  Myriophyllum hippuroides John Thomas Howell 1946-6-20 22111 Marin Pond 2 mi S of Olema. Comment
  UC1176767  Claytonia exigua subsp. exigua John Thomas Howell 1943-5-2 17937 Marin Carson Ridge Comment
  UC1176805  Atriplex triangularis John Thomas Howell 1945-8-19 21415 Marin Inverness Inverness (Salt marsh) Comment
  UC1177185  Lotus wrangelianus John Thomas Howell 1940-5-12 Marin San Anselmo Canyon Comment
  UC1177267  Erigeron reductus var. angustatus John Thomas Howell 1946-7-7 22197 Marin burned area s Barths Retreat; Mt. Tamalpais Comment
  UC1177508  Polystichum John Thomas Howell 1948-5-22 24308 Marin Camp Tucker Mt. Tamalpais Comment
  UCD103280  Geranium bicknellii John Thomas Howell 1946-5-30 21961 Marin Little Carson Canyon. Comment
  UCD103469  Geranium potentilloides John Thomas Howell 1946-6-16 s.n. Marin Inverness Park. Comment
  UCD106692  Lathyrus tingitanus John Thomas Howell 1959-5-21 34595 A Marin Inverness. Comment
  UCD108782  Vicia benghalensis John Thomas Howell 1945-5-20 s.n. Marin Tiburon. Comment
  UCD115860  Lepidium pinnatifidum John Thomas Howell 1976-6-2 51804 Marin Corte Madera. Comment
  UCD115861  Lepidium pinnatifidum John Thomas Howell 1976-6-2 51804 Marin Corte Madera. Comment
  UCD119679  Amsinckia intermedia John Thomas Howell 1933-4-30 11199 Marin Phoenix Lake. Comment
  UCD120595  Phacelia imbricata John Thomas Howell 1943-5-22 18134 Marin Fairfax Hills. Comment
  UCD121879  Galium parisiense John Thomas Howell 1942-6-7 16973 Marin San Anselmo Canyon above Fairfax. Comment
  UCD124384  Plantago truncata subsp. firma John Thomas Howell 1944-5-21 19500 Marin Lagunitas Meadows, Mount Tamalpais. Comment
  UCD124411  Plantago elongata John Thomas Howell 1947-4-30 23109 Marin Dillons Beach. Comment
  UCD125110  Mentha X rotundifolia John Thomas Howell 1944-7-30 19853 Marin Mill Valley. 3 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
  UCD127471  Eryngium armatum John Thomas Howell 1946-6-30 22163 Marin Rodeo Lagoon. Comment
  UCD127579  Lilaeopsis masonii John Thomas Howell 1946-6-30 22164 Marin Rodeo Lagoon. Comment
  UCD135498  Senecio glomeratus 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
  UCD137542  Plectritis congesta subsp. brachystemon John Thomas Howell 1947-4-27 23090 Marin Bald Mt. west of San Anselmo. Comment
  UCD137543  Plectritis congesta subsp. brachystemon John Thomas Howell 1947-5-18 23184 Marin Lagunitas Meadows. Comment
  UCD137640  Sambucus nigra subsp. caerulea John Thomas Howell 1949-6-26 25352 Marin Deer Park, Fairfax hills. 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
  UCD142600  Euphorbia maculata John Thomas Howell 1954-9-23 s.n. Marin Ross, M. H. Esberg Garden. Comment
  UCD142809  Euphorbia serpillifolia John Thomas Howell 1946-6-16 22065 Marin San Anselmo. Comment
  UCD51983  Agrostis densiflora John Thomas Howell 1945-6-3 20922 Marin Twin Beaches. Comment
  UCD97701  Atriplex semibaccata John Thomas Howell 1943-11-21 19338 Marin west of San Quentin, near Greenbrae. Comment
  UCD98217  Chenopodium macrospermum John Thomas Howell 1951-10-11 28296 Marin Drake Memorial, Pt. Reyes Peninsula. Comment
  UCD98222  Lychnis coronaria John Thomas Howell 1953-7-26 29125 Marin above Camp Eastwood, Mt. Tamalpais. Comment



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