Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page .
Turn on yellow flags to show possible range discrepancies.
Read more ...
?
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-BC100975
Cirsium hydrophilum var. vaseyi
John Thomas Howell
1942-7-12
17032
Marin
Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC10176
Delphinium hesperium
John Thomas Howell
1945-5-20
20869
Marin
Tiburon
Comment
CAS-BOT-BC10177
Delphinium hesperium
John Thomas Howell
1941-5-25
16234
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC10181
Delphinium hesperium
John Thomas Howell
1946-6-9
21998
Marin
Abbotts Lagoon
Comment
CAS-BOT-BC102017
Bidens laevis
John Thomas Howell
1945-10-14
21546
Marin
Olema Marshes
Comment
CAS-BOT-BC104201
Quercus X morehus
John Thomas Howell
1948-5-16
24297
Marin
In Upper cascade Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC104416
Quercus X subconvexa
John Thomas Howell
1940-5-26
15525
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC104418
Quercus X subconvexa
John Thomas Howell
1941-7-6
16364
Marin
Hidden Lake, Mt. Tamalpais
Comment
CAS-BOT-BC104419
Quercus X subconvexa
John Thomas Howell; John Tucker
1947-8-31
24175
Marin
Ridgecrest Road N of Alpine Lake
Comment
CAS-BOT-BC104882
Quercus wislizeni
John Thomas Howell
1927-8-22
3035
Marin
on S side of Mt. Tamalpais above Mill Valley
213
Comment
CAS-BOT-BC105260
Quercus kelloggii
John Thomas Howell
1940-9-22
s.n.
Marin
Phoenix lake, Mt. Tamalpais
Comment
CAS-BOT-BC105261
Quercus kelloggii
John Thomas Howell
1940-9-22
s.n.
Marin
Phoenix lake, Mt. Tamalpais
Comment
CAS-BOT-BC105832
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-BC105842
Cirsium andrewsii
John Thomas Howell
1947-6-18
23275
Marin
Ocean bluffs, Dillons Beach
Comment
CAS-BOT-BC107308
Salix lasiolepis var. bigelovii
John Thomas Howell
1946-7-4
22180
Marin
Dillons Beach
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-BC110190
Carex buxbaumii
John Thomas Howell
1947-6-4
23213
Marin
Point Reyes Peninsula. Swale near radio station.
Comment
CAS-BOT-BC111242
Schoenoplectus californicus
John Thomas Howell
1944-9-10
20721
Marin
Marshes north of Olema
Comment
CAS-BOT-BC111244
Schoenoplectus californicus
John Thomas Howell
1945-8-19
21439
Marin
Salt marsh at head of Drakes Bay.
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-BC111317
Schoenoplectus acutus var. occidentalis
John Thomas Howell
1946-9-20
23016
Marin
Laguna in Chileno Valley
Comment
CAS-BOT-BC111569
Schoenoplectus americanus
John Thomas Howell
1945-7-8
s.n.
Marin
Burdell
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-BC112467
Isolepis cernua
John Thomas Howell
1936-6-7
12649
Marin
Ledum Swamp on road to Pt. Reyes
Comment
CAS-BOT-BC112867
Eleocharis macrostachya
John Thomas Howell
1944-6-25
19640
Marin
San Rafel
Comment
CAS-BOT-BC113359
Eleocharis engelmannii
John Thomas Howell
1941-7-6
16362
Marin
Hidden Lake, Mt. Tamalpais
Comment
CAS-BOT-BC113677
Eleocharis acicularis var. occidentalis
John Thomas Howell
1946-7-4
22182
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-BC115587
Carex tumulicola
John Thomas Howell
1944-4-13
19370
Marin
Big Rock Ridge W of Hamilton Field.
Comment
CAS-BOT-BC116897
Carex subbracteata var. subbracteata
John Thomas Howell
1937-6-13
13053
Marin
Bolinas
Comment
CAS-BOT-BC116937
Carex subbracteata
John Thomas Howell
1945-5-27
20883
Marin
NE of Mountain Theater, Mt. Tamalpais.
Comment
CAS-BOT-BC118431
Carex praegracilis
John Thomas Howell
1945-5-20
20871
Marin
Tiburon
Comment
CAS-BOT-BC119036
Carex pellita
John Thomas Howell
1939-6-4
14722
Marin
Pt. Reyes Peninsula.
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-BC119391
Carex obnupta
John Thomas Howell
1946-5-4
21714
Marin
East of Aurora School at Sonoma Co. line.
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-BC124346
Salix lasiolepis var. lasiolepis
John Thomas Howell
1966-4-6
41470
Marin
John Thomas Howell Botanical Garden, Tiburon
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-BC126417
Salix sitchensis
John Thomas Howell
1939-3-26
14598
Marin
Cataract Gulch, Mt. Tamalpais
Comment
CAS-BOT-BC126423
Salix sitchensis
John Thomas Howell
1947-3-23
23047
Marin
Cataract Gulch, Mt. Tamalpais
Comment
CAS-BOT-BC126428
Salix sitchensis
John Thomas Howell
1943-7-4
18263
Marin
Ledum Swamp on road to Pt. Reyes
Comment
CAS-BOT-BC126429
Salix sitchensis
John Thomas Howell
1944-3-26
19346
Marin
Point Reyes road beyond Ledum Swamp
Comment
CAS-BOT-BC127184
Agrostis exarata
John Thomas Howell
1966-7-20
41992
Marin
Area adjacent to the John Thomas Howell Botanical Garden, Tiburon.
Comment
CAS-BOT-BC127187
Agrostis exarata
John Thomas Howell
1944-6-4
19542
Marin
Inverness Ridge west of Inverness.
Comment
CAS-BOT-BC127190
Agrostis exarata
John Thomas Howell
1943-6-13
18230
Marin
Sausalito Hills.
Comment
CAS-BOT-BC127191
Agrostis exarata
John Thomas Howell
1943-7-4
s.n.
Marin
Near Ledum Swamp, Point Reyes Peninsula.
Comment
CAS-BOT-BC127196
Agrostis exarata
John Thomas Howell
1945-7-1
21264
Marin
Tiburon.
Comment
CAS-BOT-BC127199
Agrostis exarata
John Thomas Howell
1945-6-3
20922
Marin
Twin Beaches.
Comment
CAS-BOT-BC127204
Agrostis exarata
John Thomas Howell
1947-6-18
23265
Marin
Laguna, Chileno Valley.
Comment
CAS-BOT-BC127207
Agrostis exarata
John Thomas Howell
1945-6-24
21237
Marin
Mount Tamalpais. Willow 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-BC127218
Agrostis exarata
John Thomas Howell
1966-7-20
41993
Marin
Area adjacent to the John Thomas Howell Botanical Garden, Tiburon.
Comment
CAS-BOT-BC127219
Agrostis exarata
John Thomas Howell
1945-6-24
21234
Marin
Mount Tamalpais. Laurel Dell.
Comment
CAS-BOT-BC127224
Agrostis exarata
John Thomas Howell
1944-9-10
20737
Marin
Shell Beach north of Inverness.
Comment
CAS-BOT-BC127227
Agrostis exarata
John Thomas Howell
1942-6-7
s.n.
Marin
San Anselmo Canyon.
Comment
CAS-BOT-BC127428
Agrostis densiflora
John Thomas Howell
1945-6-12
20962
Marin
Near radio station, Point Reyes Peninsula.
Comment
CAS-BOT-BC127429
Agrostis densiflora
John Thomas Howell
1945-7-29
21357
Marin
Between Bolinas radio station and Rio Honda.
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-BC127474
Agrostis densiflora
John Thomas Howell
1946-6-30
22146
Marin
Rodeo Lagoon.
Comment
CAS-BOT-BC127488
Agrostis capillaris
John Thomas Howell
1945-6-12
20955
Marin
Near radio station, Point Reyes Peninsula.
Comment
CAS-BOT-BC127489
Agrostis capillaris
John Thomas Howell
1945-6-12
20955
Marin
Near radio station, Point Reyes Peninsula.
Comment
CAS-BOT-BC127492
Agrostis capillaris
John Thomas Howell
1947-5-14
23165
Marin
McClure Beach.
Comment
CAS-BOT-BC127501
Agrostis blasdalei
John Thomas Howell; Catherine Best
1981-6-11
54067
Marin
North Beach, Point Reyes Peninsula.
Comment
CAS-BOT-BC127505
Agrostis blasdalei
John Thomas Howell
1947-5-14
23150
Marin
Drakes Estero west northwest of Mount Vision.
Comment
CAS-BOT-BC127512
Agrostis blasdalei
John Thomas Howell
1946-6-13
22053
Marin
Rocks east of Dillons Beach.
Comment
CAS-BOT-BC128101
Salix lasiandra var. lasiandra
John Thomas Howell
1965-10-13
s.n.
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC128103
Salix lasiandra var. lasiandra
John Thomas Howell
1949-4-6
25298
Marin
Ignacio
Comment
CAS-BOT-BC128795
Whipplea modesta
John Thomas Howell
1947-5-4
23131
Marin
San Rafael Hills
Comment
CAS-BOT-BC13123
Agoseris hirsuta
John Thomas Howell
1945-8-12
21374
Marin
Near Rock Spring, Mount Tamalpais
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-BC13127
Agoseris hirsuta
John Thomas Howell
1941-6-8
16263
Marin
Hills NE of San Rafael
Comment
CAS-BOT-BC13131
Agoseris hirsuta
John Thomas Howell
1943-6-8
18221
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC131540
Ericameria arborescens
John Thomas Howell
1924-9-14
652
Marin
Pipeline Trail
Comment
CAS-BOT-BC131550
Ericameria arborescens
John Thomas Howell
1930-12-28
5716
Marin
Slopes of Mt. Tamalpais above Mill Valley
Comment
CAS-BOT-BC132532
Calochortus tiburonensis
John Thomas Howell
1972-6-18
48864
Marin
Slope near Ring Hill, Tiburon Peninsula
167
Comment
CAS-BOT-BC132562
Calochortus umbellatus
John Thomas Howell
1946-5-12
21812
Marin
Carson country
Comment
CAS-BOT-BC132900
Adenostoma fasciculatum
John Thomas Howell
1930-12-28
5720
Marin
Slopes of Mt. Tamalpais above Mill Valley
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-BC135518
Cercocarpus betuloides var. betuloides
John Thomas Howell
1947-3-2
23040
Marin
Above Blythedale Canyon, east side of Mt. Tamalpais
Comment
CAS-BOT-BC135519
Cercocarpus betuloides var. betuloides
John Thomas Howell
1939-8-27
15320
Marin
Near Phoenix Lake
Comment
CAS-BOT-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-BC137823
Andropogon glomeratus var. pumilus
John Thomas Howell
1938-1-9
s.n.
Marin
Mount Tamalpais. Near Rock Spring.
Comment
CAS-BOT-BC137929
Alopecurus saccatus
John Thomas Howell
1946-5-4
21702
Marin
East of Aurora School at Sonoma county line.
Comment
CAS-BOT-BC137932
Alopecurus saccatus
John Thomas Howell
1947-6-18
23254
Marin
Laguna, Chileno Valley.
Comment
CAS-BOT-BC138052
Alopecurus aequalis var. sonomensis
John Thomas Howell
1952-6-3
28322
Marin
Near radio station, Point Reyes Peninsula.
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-BC138658
Agrostis stolonifera
John Thomas Howell
1944-7-9
19713
Marin
South end of Tomales Bay.
Comment
CAS-BOT-BC138659
Agrostis stolonifera
John Thomas Howell
1945-8-5
21363
Marin
McKinnan's Landing near Stinson Beach.
Comment
CAS-BOT-BC138833
Agrostis microphylla
John Thomas Howell
1943-5-15
18091
Marin
Tiburon Peninsula.
Comment
CAS-BOT-BC138838
Agrostis microphylla
John Thomas Howell
1944-5-14
19479
Marin
Chileno Valley.
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-BC139027
Agrostis pallens
John Thomas Howell
1943-7-4
18268
Marin
Near Ledum Swamp.
Comment
CAS-BOT-BC139030
Agrostis pallens
John Thomas Howell
1941-6-10
16294
Marin
Black Point.
Comment
CAS-BOT-BC139031
Agrostis pallens
John Thomas Howell
1943-5-30
18183
Marin
Mill Valley. Summit Avenue.
Comment
CAS-BOT-BC139033
Agrostis pallens
John Thomas Howell
1943-6-6
18205
Marin
Ridge southeast of Muir Woods.
Comment
CAS-BOT-BC139036
Agrostis pallens
John Thomas Howell
1939-6-18
14782
Marin
Near Mud Lake.
Comment
CAS-BOT-BC139039
Agrostis pallens
John Thomas Howell
1943-5-15
18083
Marin
Tiburon Peninsula.
Comment
CAS-BOT-BC139040
Agrostis pallens
John Thomas Howell
1943-5-9
17960
Marin
San Rafael Hills. Black Canyon.
Comment
CAS-BOT-BC139048
Agrostis pallens
John Thomas Howell; Catherine Best
1981-6-11
54064
Marin
Point Reyes Peninsula. North Beach.
Comment
CAS-BOT-BC139049
Agrostis pallens
John Thomas Howell
1945-9-13
21465
Marin
Point Reyes Peninsula. Near radio station.
Comment
CAS-BOT-BC139485
Agrostis hallii
John Thomas Howell
1943-7-3
s.n.
Marin
Mount Tamalpais. Near Bootjack.
Comment
CAS-BOT-BC139486
Agrostis hallii
John Thomas Howell
1947-6-18
23284
Marin
North of Dillon Beach.
Comment
CAS-BOT-BC139664
Agrostis gigantea
John Thomas Howell
1944-7-30
s.n.
Marin
Mill Valley. Near Locust Ave.
Comment
CAS-BOT-BC139667
Agrostis gigantea
John Thomas Howell
1953-7-5
29106
Marin
East Peak, Mount Tamalpais.
Comment
CAS-BOT-BC139672
Agrostis gigantea
John Thomas Howell
1944-9-10
20720
Marin
Marshes north of Olema.
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-BC141321
Phoradendron serotinum subsp. tomentosum
John Thomas Howell
1945-2-22
20773
Marin
Near Mountain Theater, 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-BC141591
Cotoneaster pannosus
John Thomas Howell
1959-11-4
35109
Marin
Stinson Beach
Comment
CAS-BOT-BC142227
Oemleria cerasiformis
John Thomas Howell
1946-6-16
22078
Marin
Olema Marshes
Comment
CAS-BOT-BC142250
Physocarpus capitatus
John Thomas Howell
1958-6-28
33638
Marin
Stream bank, Willow Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC142514
Amelanchier utahensis
John Thomas Howell
1944-5-14
19458
Marin
Exposed rock near Salmon Creek School
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-BC143091
Potentilla anserina subsp. pacifica
John Thomas Howell
1947-5-21
23194
Marin
Tiburon
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-BC144016
Horkelia marinensis
John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True
1980-6-19
53719
Marin
Near Abbotts Lagoon, Point Reyes Peninsula
Comment
CAS-BOT-BC144705
Ribes sanguineum var. glutinosum
John Thomas Howell
1944-3-26
19341
Marin
Inverness
Comment
CAS-BOT-BC144708
Ribes sanguineum var. glutinosum
John Thomas Howell
1944-7-9
19696
Marin
Inverness Ridge
Comment
CAS-BOT-BC145419
Brachypodium distachyon
John Thomas Howell
1948-5-31
24327
Marin
Devils Gulch near Camp Taylor.
Comment
CAS-BOT-BC145759
Avena sativa
John Thomas Howell
1946-6-30
22140
Marin
Rodeo Lagoon.
Comment
CAS-BOT-BC145761
Avena sativa
J. T. Howell
1988-7-16
s.n.
Marin
In Terra Linda.
Comment
CAS-BOT-BC145778
Beckmannia syzigachne
John Thomas Howell
1945-5-9
20835
Marin
Between Hamilton Field and Ignacio.
Comment
CAS-BOT-BC145779
Beckmannia syzigachne
John Thomas Howell
1946-6-13
22019
Marin
Hicks Valley.
Comment
CAS-BOT-BC146224
Avena
J. T. Howell
1988-7-13
s.n.
Marin
Terra Linda.
Comment
CAS-BOT-BC146514
Horkelia tenuiloba
John Thomas Howell
1939-7-16
14847
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC146562
Carex gynodynama
John Thomas Howell
1945-6-24
21240
Marin
Willow Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC146589
Carex gynodynama
John Thomas Howell
1946-5-4
21728
Marin
Near Dillons Beach
Comment
CAS-BOT-BC146594
Carex gynodynama
John Thomas Howell; J. W. Stacey
1936-6-7
12640
Marin
Ledum Swamp on road to Point Reyes
Comment
CAS-BOT-BC146620
Carex mendocinensis
John Thomas Howell
1940-5-26
15535
Marin
Little Carson Falls
Comment
CAS-BOT-BC146623
Carex mendocinensis
John Thomas Howell; J. W. Stacey
1936-6-7
12658
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC146629
Carex mendocinensis
John Thomas Howell
1938-6-5
13895
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC146632
Carex mendocinensis
John Thomas Howell
1940-5-26
15535
Marin
Little Carson Falls
Comment
CAS-BOT-BC146894
Rosa rubiginosa
John Thomas Howell
1946-6-13
22057
Marin
Estero School n. of Dillons Beach
Comment
CAS-BOT-BC147261
Rubus parviflorus
John Thomas Howell
1939-6-25
14807
Marin
Mt. Tamalpais
Comment
CAS-BOT-BC147509
Rosa californica
John Thomas Howell
1939-9-3
15357
Marin
San Antonio Creek
Comment
CAS-BOT-BC148226
Rosa spithamea
John Thomas Howell
1942-6-21
17001
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC148228
Rosa spithamea
John Thomas Howell
1946-6-2
21978
Marin
Rocky Ridge Fire Trail, Mt. Tamalpais
Comment
CAS-BOT-BC148229
Rosa spithamea
John Thomas Howell
1946-9-8
23001
Marin
Burned area sw. of Lake Lagunitas, Mt. Tamalpais
Comment
CAS-BOT-BC149176
Bromus carinatus var. carinatus
John Thomas Howell
1943-5-9
17972
Marin
San Rafael Hills.
Comment
CAS-BOT-BC149202
Bromus carinatus var. carinatus
John Thomas Howell
1959-11-4
35114
Marin
Shore of Bolinas Lagoon north of Stinson Beach.
Comment
CAS-BOT-BC149207
Bromus carinatus var. carinatus
John Thomas Howell
1943-6-13
18233
Marin
Sausalito.
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-BC149218
Bromus carinatus var. carinatus
John Thomas Howell
1945-6-3
20920
Marin
Near Inverness.
Comment
CAS-BOT-BC149222
Bromus carinatus var. carinatus
John Thomas Howell
1943-5-22
18120
Marin
Fairfox.
Comment
CAS-BOT-BC149224
Bromus carinatus var. carinatus
John Thomas Howell
1943-5-22
18124
Marin
Deer Park near Fairfax.
Comment
CAS-BOT-BC149245
Bromus carinatus var. carinatus
John Thomas Howell
1943-6-6
18215
Marin
Railroad grade above Muir Woods.
Comment
CAS-BOT-BC149246
Bromus carinatus var. carinatus
John Thomas Howell
1943-6-6
18214
Marin
Railroad grade to Muir Woods.
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-BC151945
Diplacus douglasii
John Thomas Howell
1941-5-18
16193
Marin
Near Rock Spring, Mt. Tamalpais
Comment
CAS-BOT-BC154378
Phacelia suaveolens
John Thomas Howell
1946-5-14
21842
Marin
Potrero Meadow. Mt. Tamalpais
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-BC155017
Bromus hordeaceus
John Thomas Howell
1966-4-18
41482
Marin
John Thomas Howell Botanical Garden. Tiburon.
Comment
CAS-BOT-BC155020
Bromus hordeaceus
John Thomas Howell
1966-4-18
41520
Marin
John Thomas Howell Botanical Garden. Tiburon.
Comment
CAS-BOT-BC155025
Bromus hordeaceus
John Thomas Howell
1938-6-19
13913
Marin
Mount Tamalpais. Zigzag Fire Trail.
Comment
CAS-BOT-BC155380
Bromus hordeaceus
John Thomas Howell
1943-5-9
s.n.
Marin
San Raphael.
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-BC155936
Bromus commutatus
John Thomas Howell
1944-5-28
19520
Marin
Almonte.
Comment
CAS-BOT-BC156625
Rubus bifrons
John Thomas Howell
1943-8-29
19311
Marin
Summit (Avenue) Ridge, Mill Valley
Comment
CAS-BOT-BC157406
Solanum umbelliferum
J. T. Howell
1940-5-12
s.n.
Marin
Lagunitas Creek Canyon
Comment
CAS-BOT-BC158718
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-BC158836
Rubus ursinus
John Thomas Howell
1938-5-22
13799
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC158838
Rubus ursinus
John Thomas Howell
1938-6-5
13898
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC158839
Rubus ursinus
John Thomas Howell
1938-6-19
13918
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC158840
Rubus ursinus
John Thomas Howell
1938-6-19
13918
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC158841
Rubus ursinus
John Thomas Howell
1938-6-5
13898
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC158843
Rubus ursinus
John Thomas Howell
1938-6-19
13921
Marin
Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC158845
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-BC158849
Rubus ursinus
John Thomas Howell
1938-6-19
13929
Marin
Near Rattlesnake, Mt. Tamalpais
Comment
CAS-BOT-BC158850
Rubus ursinus
John Thomas Howell
1938-6-19
13929
Marin
Near Rattlesnake, Mt. Tamalpais
Comment
CAS-BOT-BC158851
Rubus ursinus
John Thomas Howell
1938-5-22
13801
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC158855
Rubus ursinus
John Thomas Howell
1943-4-11
17894
Marin
Black Canyon, San Rafael Hills
Comment
CAS-BOT-BC158856
Rubus ursinus
John Thomas Howell
1943-4-11
17894
Marin
Black Canyon, San Rafael Hills
Comment
CAS-BOT-BC160263
Camissoniopsis cheiranthifolia subsp. cheiranthifolia
John Thomas Howell
1945-6-30
s.n.
Marin
Stinson Beach
Comment
CAS-BOT-BC160988
Clarkia amoena subsp. amoena
John Thomas Howell
1939-6-4
14714
Marin
Pt. Reyes lighthouse
Comment
CAS-BOT-BC161394
Bromus tectorum
John Thomas Howell
1955-5-29
30255
Marin
Near Mountain Theater, Mount Tamalpais.
Comment
CAS-BOT-BC161397
Bromus tectorum
John Thomas Howell
1943-5-9
17940
Marin
San Rafael.
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-BC162251
Bromus maritimus
John Thomas Howell
1946-6-30
22147
Marin
Rodeo Lagoon.
Comment
CAS-BOT-BC162253
Bromus maritimus
John Thomas Howell
1945-6-12
20958
Marin
Point Reyes Peninsula. Near Radio Station.
Comment
CAS-BOT-BC162330
Bromus madritensis
John Thomas Howell
1969-5-5
45571
Marin
Tiburon Peninsula. Ring Hill.
Comment
CAS-BOT-BC162331
Bromus madritensis
John Thomas Howell
1944-4-16
19390
Marin
Mount Tamalpais. Corte Madera Ridge.
Comment
CAS-BOT-BC162333
Bromus madritensis
John Thomas Howell
1946-5-16
21872
Marin
Angel Island, south side.
Comment
CAS-BOT-BC162432
Bromus laevipes
John Thomas Howell
1938-6-19
13919
Marin
Mount Tamalpais. Bootjack.
Comment
CAS-BOT-BC163742
Clarkia purpurea subsp. quadrivulnera
John Thomas Howell
1943-6-6
18212
Marin
Canyon just below Muir Woods
Comment
CAS-BOT-BC164290
Clarkia davyi
John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True
1980-6-19
53720
Marin
Near Abbotts Lagoon, Point Reyes Peninsula
Comment
CAS-BOT-BC16451
Barbarea orthoceras
John Thomas Howell
1947-5-8
s.n.
Marin
Sausalito.
Comment
CAS-BOT-BC16455
Barbarea orthoceras
John Thomas Howell
1975-6-29
51325
Marin
Kentfield. Roadside, Goodhill and Diablo Roads.
Comment
CAS-BOT-BC164606
Clarkia gracilis subsp. gracilis
John Thomas Howell
1940-5-12
15420
Marin
Lagunitas Creek
Comment
CAS-BOT-BC165077
Clarkia rubicunda
John Thomas Howell
1946-5-16
21875
Marin
Angel Island, s. side
Comment
CAS-BOT-BC168740
Ribes victoris
John Thomas Howell
1943-3-7
17886
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC168741
Ribes victoris
John Thomas Howell
1943-3-7
17887
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC168743
Ribes victoris
John Thomas Howell
1943-3-14
17888
Marin
Northside Trail, Mt. Tamalpais
Comment
CAS-BOT-BC168745
Ribes victoris
John Thomas Howell
1942-9-6
17863
Marin
Northside Trail, Mt. Tamalpais
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-BC168749
Ribes victoris
John Thomas Howell
1943-3-7
17885
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC168750
Ribes victoris
John Thomas Howell
1943-4-11
17915
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC169213
Toxicodendron diversilobum
John Thomas Howell
1933-4-30
11189
Marin
North side of Mt. Tamalpais
Comment
CAS-BOT-BC169315
Alnus rubra
John Thomas Howell
1927-4-23
2352
Marin
Between Muir Woods and Big Lagoon in Franklin Canon [canyon]
30
Comment
CAS-BOT-BC17350
Arabis eschscholtziana
John Thomas Howell
1944-5-14
19463
Marin
Salmon Creek Canyon.
Comment
CAS-BOT-BC17510
Athysanus pusillus
John Thomas Howell
1946-3-24
21581
Marin
Carson Country.
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-BC175529
Parnassia palustris
John Thomas Howell
1957-1-1
32019
Marin
Azalea Flat, Mt. Tamalpais
Comment
CAS-BOT-BC175894
Claytonia rubra subsp. rubra
John Thomas Howell
1946-3-24
21584
Marin
Carson country
Comment
CAS-BOT-BC175942
Agrostis pallens
John Thomas Howell
1945-6-24
s.n.
Marin
Near Bootjack Cypresses, Mt. Tamalpais
Comment
CAS-BOT-BC176067
Hesperolinon congestum
John Thomas Howell
1937-7-4
13089
Marin
Tiburon
Comment
CAS-BOT-BC177034
Acacia dealbata
John Thomas Howell
1943-8-29
19312
Marin
On Summit (Avenue) Ridge above Mill Valley
152
Comment
CAS-BOT-BC181438
Stellaria littoralis
John Thomas Howell
1947-5-14
s.n.
Marin
McClure Beach
Comment
CAS-BOT-BC183153
Vulpia microstachys var. ciliata
John Thomas Howell
1941-5-25
10233
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC183155
Vulpia microstachys var. ciliata
John Thomas Howell
1938-6-9
13909
Marin
Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC183163
Vulpia microstachys var. ciliata
John Thomas Howell
1941-6-29
16335
Marin
Between Rock Spring and Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC183997
Vulpia microstachys var. microstachys
John Thomas Howell
1966-4-6
41458
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-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-BC184340
Vulpia microstachys var. pauciflora
John Thomas Howell
1947-4-13
23055
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC184341
Vulpia microstachys var. pauciflora
John Thomas Howell
1941-4-17
s.n.
Marin
Tiburon
Comment
CAS-BOT-BC184346
Vulpia microstachys var. pauciflora
John Thomas Howell
1938-6-9
13908
Marin
Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC184348
Vulpia microstachys var. pauciflora
John Thomas Howell
1947-5-4
23132
Marin
San Rafael Hills
Comment
CAS-BOT-BC184349
Vulpia microstachys var. pauciflora
John Thomas Howell
1946-5-14
21838
Marin
Between Barths Retreat and Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC184351
Vulpia microstachys var. pauciflora
John Thomas Howell
1946-5-14
21839
Marin
Between Barths Retreat and Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC184353
Vulpia microstachys var. pauciflora
John Thomas Howell
1941-5-25
16222
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC184359
Vulpia microstachys var. pauciflora
John Thomas Howell
1947-4-27
23088
Marin
Bald Mt. west of San Anselmo
Comment
CAS-BOT-BC184360
Vulpia microstachys var. pauciflora
John Thomas Howell
1946-5-14
21838
Marin
Between Barth's Retreat and Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC184361
Vulpia microstachys var. pauciflora
John Thomas Howell
1941-5-25
16230
Marin
Between Potrero Meadow and Mt. Theater, Mt. Tamalpais
Comment
CAS-BOT-BC184365
Vulpia microstachys var. pauciflora
John Thomas Howell
1943-5-22
18140
Marin
Fairfax Hills
Comment
CAS-BOT-BC185020
Calamagrostis rubescens
John Thomas Howell
1945-8-12
21377
Marin
Mill Valley, Cascade Canyon.
Comment
CAS-BOT-BC185021
Calamagrostis rubescens
John Thomas Howell
1946-9-15
23004
Marin
Mount Tamalpais. Near Willow Meadow.
Comment
CAS-BOT-BC185026
Calamagrostis rubescens
John Thomas Howell
1945-8-12
21377
Marin
Mill Valley, Cascade Canyon.
Comment
CAS-BOT-BC185103
Calamagrostis ophitidis
John Thomas Howell
1945-5-27
20878 A
Marin
Mount Tamalpais. Bootjack cypresses.
Comment
CAS-BOT-BC185105
Calamagrostis ophitidis
John Thomas Howell
1942-6-21
16988
Marin
Carson Ridge.
Comment
CAS-BOT-BC185106
Calamagrostis ophitidis
John Thomas Howell
1966-5-25
41535
Marin
John Thomas Howell Botanical Garden, Tiburon. Just north of garden area.
Comment
CAS-BOT-BC185108
Calamagrostis ophitidis
John Thomas Howell
1939-5-14
14680
Marin
Near Collier Spring, Mount Tamalpais.
Comment
CAS-BOT-BC185172
Calamagrostis nutkaensis
John Thomas Howell
1943-7-4
18248
Marin
Ledum Swamp on road to Point Reyes.
Comment
CAS-BOT-BC185174
Calamagrostis nutkaensis
John Thomas Howell
1943-6-13
18229
Marin
Sausalito Hills.
Comment
CAS-BOT-BC185232
Calamagrostis koelerioides
John Thomas Howell
1949-6-26
25352 A
Marin
Mount Tamalpais. Firetrail north of East Peak.
Comment
CAS-BOT-BC185510
Bromus vulgaris
John Thomas Howell
1945-6-30
21249
Marin
Steep Ravine. Mount Tamalpais.
Comment
CAS-BOT-BC185511
Bromus vulgaris
John Thomas Howell
1943-5-30
18189
Marin
Rifle Camp, Mount Tamalpais.
Comment
CAS-BOT-BC185513
Bromus vulgaris
John Thomas Howell
1945-6-24
s.n.
Marin
Mount Tamalpais. Rock Spring to Laurel Dell.
Comment
CAS-BOT-BC185861
Vulpia octoflora var. hirtella
John Thomas Howell
1947-5-25
23197
Marin
Simmons Trail, Mt. Tamalpais
Comment
CAS-BOT-BC185971
Vulpia octoflora var. octoflora
John Thomas Howell
1941-5-25
16200
Marin
West Point to West Peak, Mt. Tamalpais
Comment
CAS-BOT-BC185976
Vulpia myuros var. myuros
John Thomas Howell
1943-5-22
18115
Marin
Fairfax
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-BC189714
Danthonia californica
John Thomas Howell
1947-7-6
23326
Marin
Mount Tamalpais. Near Barths Retreat.
Comment
CAS-BOT-BC189720
Danthonia californica
John Thomas Howell
1950-6-4
26624
Marin
Mount Tamalpais. Near Mountain Home.
Comment
CAS-BOT-BC189721
Danthonia californica
John Thomas Howell
1929-6-2
4286
Marin
Hills near Fort Baker.
Comment
CAS-BOT-BC189725
Danthonia californica
John Thomas Howell
1941-5-25
16210
Marin
Rifle Camp, Mount Tamalpais.
Comment
CAS-BOT-BC189726
Danthonia californica
John Thomas Howell
1943-5-9
17966
Marin
San Rafael Hills.
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-BC190132
Crypsis vaginiflora
John Thomas Howell
1980-9-8
53894
Marin
Alpine Lake near Bon Tempe Lake Dam.
Comment
CAS-BOT-BC190418
Cynosurus echinatus
John Thomas Howell
1942-6-7
s.n.
Marin
San Anselmo Canyon.
Comment
CAS-BOT-BC191537
Chorizanthe cuspidata var. villosa
John Thomas Howell
1946-5-4
21747
Marin
Dillons Beach
Comment
CAS-BOT-BC191542
Chorizanthe cuspidata var. villosa
John Thomas Howell
1946-6-9
21999
Marin
Abbotts Lagoon
Comment
CAS-BOT-BC192192
Garrya fremontii
John Thomas Howell
1942-9-6
17864
Marin
Northside Trail, Mt. Tamalpais
Comment
CAS-BOT-BC19235
Carex barbarae
John Thomas Howell
1938-6-5
13900
Marin
Mount Tamalpais. Near Bootjack.
Comment
CAS-BOT-BC19237
Carex barbarae
John Thomas Howell
1946-5-16
21855
Marin
Angel Island, SE side.
Comment
CAS-BOT-BC192556
Deschampsia cespitosa subsp. holciformis
John Thomas Howell
1965-10-13
41405
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC192558
Deschampsia cespitosa subsp. holciformis
John Thomas Howell
1946-6-30
22153
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC192559
Deschampsia cespitosa subsp. holciformis
J. T. Howell
1943-7-4
18257
Marin
Ledum Swamp on road to Pt. Reyes
Comment
CAS-BOT-BC193114
Astragalus pycnostachyus var. pycnostachyus
John Thomas Howell
1945-8-19
21433
Marin
At head of Drakes Bay
Comment
CAS-BOT-BC193936
Vaccinium ovatum
John Thomas Howell
1947-3-2
23042
Marin
Above Phoenix Lake, Mt. Tamalpais
Comment
CAS-BOT-BC194533
Garrya elliptica
John Thomas Howell
1944-4-13
19380
Marin
Big Rock Ridge west of Hamilton Field
Comment
CAS-BOT-BC195585
Catapodium rigidum
John Thomas Howell
1945-8-12
21378
Marin
Cascade Canyon, Mill Valley
Comment
CAS-BOT-BC195586
Catapodium rigidum
John Thomas Howell
1943-6-13
18225
Marin
Sausalito
Comment
CAS-BOT-BC195632
Distichlis spicata
John Thomas Howell
1945-8-5
s.n.
Marin
Stinson Beach
Comment
CAS-BOT-BC196047
Lupinus albifrons var. collinus
John Thomas Howell
1943-5-22
18133
Marin
Fairfax hills
Comment
CAS-BOT-BC196052
Lupinus albifrons var. collinus
John Thomas Howell
1942-4-19
16944
Marin
Big Carson Canyon
Comment
CAS-BOT-BC196174
Lupinus albifrons var. douglasii
John Thomas Howell
1950-6-4
26622
Marin
Blithedale Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC196411
Lupinus arboreus
John Thomas Howell
1944-7-9
19692
Marin
Mt. Vision, Inverness Ridge
Comment
CAS-BOT-BC19682
Carex athrostachya
John Thomas Howell
1946-6-13
22025
Marin
Chileno Valley.
Comment
CAS-BOT-BC197147
Echinochloa crus-galli
John Thomas Howell
1943-9-5
19320
Marin
Just south of Mill Valley
Comment
CAS-BOT-BC198485
Deschampsia danthonioides
John Thomas Howell
1945-4-29
s.n.
Marin
Lagunitas Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC198486
Deschampsia danthonioides
John Thomas Howell
1946-7-7
22215
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC198488
Deschampsia danthonioides
John Thomas Howell
1939-5-14
14670
Marin
Lake Lagunitas Meadows
Comment
CAS-BOT-BC198489
Deschampsia danthonioides
John Thomas Howell
1967-5-24
42261
Marin
To west of Dakin Lane, just north of Old St. Hilary's Church, Tiburon
Comment
CAS-BOT-BC198492
Deschampsia danthonioides
John Thomas Howell
1943-5-15
18100
Marin
South end, Tiburon Peninsula
Comment
CAS-BOT-BC198780
Vulpia bromoides
John Thomas Howell
1948-5-16
24300
Marin
Fern Canyon, on RR grade, Mt. Tamalpais
Comment
CAS-BOT-BC198781
Vulpia bromoides
John Thomas Howell
1943-5-9
17973
Marin
San Rafael Hills
Comment
CAS-BOT-BC198783
Vulpia bromoides
John Thomas Howell
1937-6-13
13049
Marin
Head of Drakes Bay, Pt. Reyes
Comment
CAS-BOT-BC198786
Vulpia bromoides
John Thomas Howell
1941-5-25
16198
Marin
West Point to West Peak, Mt. Tamalpais
Comment
CAS-BOT-BC198788
Vulpia bromoides
John Thomas Howell
1943-5-15
18080
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC198789
Vulpia bromoides
John Thomas Howell
1930-4-23
s.n.
Marin
Blythedale Canyon, Mill Valley
Comment
CAS-BOT-BC19894
Carex echinata subsp. phyllomanica
John Thomas Howell
1946-6-9
22005
Marin
Abbotts Lagoon.
Comment
CAS-BOT-BC19895
Carex echinata subsp. phyllomanica
John Thomas Howell
1943-7-4
18255
Marin
Ledum Swamp on road to Pt. Reyes.
Comment
CAS-BOT-BC19960
Carex exsiccata
John Thomas Howell
1946-6-20
22104
Marin
4 miles north of Bolinas.
Comment
CAS-BOT-BC199636
Trisetum canescens
John Thomas Howell
1946-5-26
s.n.
Marin
Pt. Reyes Lighthouse
Comment
CAS-BOT-BC199638
Trisetum canescens
John Thomas Howell
1943-5-22
18147
Marin
Fairfax Hills
Comment
CAS-BOT-BC199639
Trisetum canescens
John Thomas Howell
1943-5-15
18087
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC199640
Trisetum canescens
John Thomas Howell
1943-5-9
17952 A
Marin
Black Canyon, San Rafael Hills
Comment
CAS-BOT-BC199641
Trisetum canescens
John Thomas Howell
1949-5-15
25313
Marin
West of Inverness
Comment
CAS-BOT-BC199645
Trisetum canescens
John Thomas Howell
1941-5-25
16226
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC199646
Trisetum canescens
John Thomas Howell
1943-5-15
18087
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC200479
Triticum aestivum
John Thomas Howell
1945-5-9
s.n.
Marin
Ignacio
Comment
CAS-BOT-BC201820
Deschampsia elongata
John Thomas Howell
1943-5-9
17951
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC201821
Deschampsia elongata
John Thomas Howell
1941-7-6
16366
Marin
Camp Hogan, Mt. Tamalpais
Comment
CAS-BOT-BC201825
Deschampsia elongata
John Thomas Howell
1942-6-21
s.n.
Marin
Carson Ridge
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-BC203487
Elymus glaucus subsp. glaucus
John Thomas Howell
1941-6-29
16341
Marin
Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC203490
Elymus glaucus subsp. glaucus
John Thomas Howell
1941-5-25
16215
Marin
Rifle Camp, Mt. Tamalpais
Comment
CAS-BOT-BC203493
Elymus glaucus subsp. glaucus
John Thomas Howell
1943-6-6
18199
Marin
Between Mill Valley and Muir Woods
Comment
CAS-BOT-BC203495
Elymus glaucus subsp. glaucus
John Thomas Howell
1943-6-6
18210
Marin
Canyon below Muir Woods
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-BC203507
Elymus glaucus subsp. glaucus
John Thomas Howell
1944-6-25
19642
Marin
Santa Venetia
Comment
CAS-BOT-BC203510
Elymus glaucus subsp. glaucus
John Thomas Howell
1945-5-9
20819
Marin
Hamilton Field
Comment
CAS-BOT-BC203522
Elymus glaucus subsp. glaucus
John Thomas Howell
1943-5-9
17953
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC203524
Elymus glaucus subsp. glaucus
John Thomas Howell
1943-5-15
18098
Marin
Tiburon Peninsula
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-BC203807
Elymus glaucus subsp. virescens
John Thomas Howell
1943-7-4
18249
Marin
Ledum Swamp on road to Point Reyes
Comment
CAS-BOT-BC203811
Elymus glaucus subsp. virescens
John Thomas Howell
1945-7-15
21306
Marin
Near Liberty's
Comment
CAS-BOT-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-BC203851
Elymus X hansenii
John Thomas Howell
1943-6-6
18206
Marin
Ridge se. of Muir Woods
Comment
CAS-BOT-BC203856
Elymus X hansenii
John Thomas Howell
1948-5-31
24325
Marin
Devils Gulch near Camp Taylor
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-BC203861
Elymus X hansenii
John Thomas Howell
1941-5-25
16236
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC204294
Elymus trachycaulus subsp. trachycaulus
John Thomas Howell
1943-6-8
18218
Marin
Tiburon
Comment
CAS-BOT-BC204587
Eragrostis mexicana subsp. virescens
John Thomas Howell
1986-9-3
s.n.
Marin
Terra Linda Vegetable Garden, Nova Albion & Cermenho Ct, San Rafael
Comment
CAS-BOT-BC205537
Sidalcea hickmanii subsp. viridis
John Thomas Howell; Antonio Krapovickas
1954-6-23
30005
Marin
Carson Ridge
Comment
CAS-BOT-BC208071
Genista monspessulana
John Thomas Howell
1966-4-6
41471
Marin
John Thomas Howell Botanical Garden, Tiburon
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-BC20897
Carex globosa
John Thomas Howell
1945-6-3
20932
Marin
Shell Beach.
Comment
CAS-BOT-BC209203
Dichanthelium acuminatum subsp. acuminatum
John Thomas Howell
1941-5-25
16225
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC209252
Ribes menziesii
John Thomas Howell
1950-10-11
27469
Marin
Bear Valley
Comment
CAS-BOT-BC209254
Ribes menziesii
John Thomas Howell
1939-5-21
14699
Marin
South end of Tiburon Peninsula
Comment
CAS-BOT-BC209264
Ribes menziesii
John Thomas Howell
1943-6-6
18207
Marin
Canyon below Muir Woods
Comment
CAS-BOT-BC209274
Ribes menziesii
John Thomas Howell
1943-6-6
18207
Marin
Canyon below Muir Woods
Comment
CAS-BOT-BC210248
Cornus sericea
John Thomas Howell
1939-7-2
14838
Marin
Between Big Lagoon and Muir Woods
Comment
CAS-BOT-BC210250
Cornus sericea
John Thomas Howell
1940-9-15
s.n.
Marin
Stinson Beach
Comment
CAS-BOT-BC210251
Cornus sericea
John Thomas Howell
1946-6-13
22026
Marin
Chileno Valley
Comment
CAS-BOT-BC21123
Carex leptalea
John Thomas Howell
1943-7-4
18254
Marin
Ledum Swamp on road to Pt. Reyes.
Comment
CAS-BOT-BC213366
Lathyrus jepsonii subsp. californicus
John Thomas Howell
1947-5-18
23174
Marin
Fairfax Hills
Comment
CAS-BOT-BC21338
Agoseris grandiflora var. grandiflora
John Thomas Howell
1945-6-3
20930
Marin
Shell Beach
Comment
CAS-BOT-BC21344
Agoseris grandiflora var. grandiflora
John Thomas Howell
1940-5-20
15470
Marin
Fairfax
Comment
CAS-BOT-BC215001
Lupinus chamissonis
John Thomas Howell; et al
1980-6-19
53724
Marin
Near Abbotts Lagoon, Point Reyes Peninsula
Comment
CAS-BOT-BC215707
Lepechinia calycina
John Thomas Howell
1925-4-5
936
Marin
Pipeline Trail
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-BC215884
Calystegia purpurata subsp. purpurata
John Thomas Howell
1945-5-6
20803
Marin
San Rafael Hills
Comment
CAS-BOT-BC215887
Calystegia purpurata subsp. purpurata
John Thomas Howell
1946-5-12
21786
Marin
Carson Ridge
Comment
CAS-BOT-BC215890
Calystegia purpurata subsp. purpurata
John Thomas Howell
1939-7-2
s.n.
Marin
Near Big Lagoon
Comment
CAS-BOT-BC215893
Calystegia purpurata subsp. purpurata
John Thomas Howell
1925-4-5
895
Marin
Pipeline Trail
Comment
CAS-BOT-BC216090
Eriodictyon californicum
John Thomas Howell
1939-6-18
14770
Marin
Near Mud Lake
Comment
CAS-BOT-BC218436
Glehnia littoralis subsp. leiocarpa
John Thomas Howell
1947-6-18
23279
Marin
Near Dillon's Beach.
Comment
CAS-BOT-BC219428
Nemophila parviflora
John Thomas Howell
1948-5-31
24322
Marin
Devils Gulch near Camp Taylor
Comment
CAS-BOT-BC220171
Monardella sinuata subsp. nigrescens
John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True
1980-6-19
53725
Marin
Near Abbotts Lagoon, Point Reyes Peninsula
Comment
CAS-BOT-BC220396
Monardella purpurea
John Thomas Howell
1939-6-25
14808
Marin
Mt. Tamalpais above Cascade Canyon
Comment
CAS-BOT-BC220399
Monardella purpurea
John Thomas Howell
1946-7-7
22208
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC220412
Monardella purpurea
John Thomas Howell
1939-6-25
14791
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC220420
Monardella purpurea
John Thomas Howell
1939-6-25
14791
Marin
Summit Ave., Mill Valley
Comment
CAS-BOT-BC220534
Monardella villosa
John Thomas Howell
1946-5-19
21903
Marin
Fairfax
Comment
CAS-BOT-BC22126
Carex harfordii
John Thomas Howell; J. W. Stacey
1936-6-7
12643
Marin
Ledum Swamp on road to Point Reyes.
Comment
CAS-BOT-BC22127
Carex harfordii
John Thomas Howell
1944-7-2
s.n.
Marin
Potrero Meadow, Mt. Tamalpais.
Comment
CAS-BOT-BC22129
Carex harfordii
John Thomas Howell
1944-7-9
19694
Marin
Inverness Ridge.
Comment
CAS-BOT-BC22133
Carex harfordii
John Thomas Howell
1946-6-2
21968
Marin
Potrero Meadow. Mt. Tamalpais.
Comment
CAS-BOT-BC22135
Carex harfordii
John Thomas Howell
1944-6-4
19575
Marin
Inverness Ridge, west of Inverness.
Comment
CAS-BOT-BC22137
Carex harfordii
John Thomas Howell
1944-6-4
19575
Marin
Inverness Ridge west of Inverness.
Comment
CAS-BOT-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-BC221856
Stenotaphrum secundatum
John Thomas Howell
1944-10-1
20766
Marin
Fairfax
Comment
CAS-BOT-BC222725
Perideridia gairdneri subsp. gairdneri
John Thomas Howell
1939-10-1
15367
Marin
Near Lake Lagunitas
Comment
CAS-BOT-BC222726
Perideridia gairdneri subsp. gairdneri
John Thomas Howell
1947-6-18
23272
Marin
3 miles east of Tomales
Comment
CAS-BOT-BC22322
Carex harfordii
John Thomas Howell
1944-6-4
19575
Marin
Inverness Ridge west of Inverness.
Comment
CAS-BOT-BC223888
Cistus incanus
John Thomas Howell
1939-9-3
15335
Marin
At Black Point
Comment
CAS-BOT-BC223997
Helianthemum scoparium
John Thomas Howell
1947-5-18
23180
Marin
Carson Ridge
Comment
CAS-BOT-BC224497
Cuscuta californica
John Thomas Howell
1942-7-5
17010
Marin
Fern Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC224501
Cuscuta californica
John Thomas Howell
1946-7-7
22194
Marin
South of Barths Retreat, 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-BC224508
Cuscuta californica
John Thomas Howell
1942-6-21
16986
Marin
Carson Ridge
Comment
CAS-BOT-BC224517
Ribes menziesii
John Thomas Howell
1944-5-14
19462
Marin
Salmon Creek Canyon
Comment
CAS-BOT-BC224723
Calystegia purpurata subsp. saxicola
John Thomas Howell
1947-6-18
23285
Marin
North of Dillons Beach
Comment
CAS-BOT-BC224726
Calystegia purpurata subsp. saxicola
John Thomas Howell
1947-5-14
23168
Marin
McClure Beach
Comment
CAS-BOT-BC225478
Gilia millefoliata
John Thomas Howell
1946-6-9
21997
Marin
Abbotts Lagoon
Comment
CAS-BOT-BC229382
Abronia umbellata
John Thomas Howell
1947-5-14
23157
Marin
McClure Beach
Comment
CAS-BOT-BC22949
Agoseris heterophylla
John Thomas Howell
1947-4-27
23102
Marin
Bald Mt. west of San Anselmo
Comment
CAS-BOT-BC23190
Arctostaphylos glandulosa subsp. glandulosa
John Thomas Howell
1927-8-22
3038
Marin
Rocky slope on Rock Spring Trail, west of West Point, Mt. Tamalpais
548
Comment
CAS-BOT-BC23218
Arctostaphylos glandulosa subsp. glandulosa
John Thomas Howell
1925-2-1
732
Marin
South side of Mt. Tamalpais
457
Comment
CAS-BOT-BC233238
Polypogon maritimus
John Thomas Howell
1958-6-28
33637
Marin
Near Willow Meadow, Mount Tamalpais
Comment
CAS-BOT-BC233239
Polypogon maritimus
John Thomas Howell
1945-6-24
21236
Marin
Willow Meadows, Mount Tamalpais
Comment
CAS-BOT-BC233240
Polypogon maritimus
John Thomas Howell
1980-9-8
53893
Marin
Bottom of Alpine Lake near Bon Tempe Lake Dam
Comment
CAS-BOT-BC23351
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1944-3-26
19356
Marin
Pines west of Inverness
Comment
CAS-BOT-BC23355
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1946-5-16
21891
Marin
Angel Island, N. side
Comment
CAS-BOT-BC23356
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1943-7-4
18272
Marin
West of Inverness
Comment
CAS-BOT-BC23386
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1943-3-7
17883
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC23389
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1930-7-20
5376
Marin
Hills just north of Phoenix Lake
Comment
CAS-BOT-BC23391
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1926-2-22
1642
Marin
Inverness Ridge
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-BC234053
Elymus multisetus
John Thomas Howell
1966-4-18
41519
Marin
Gully just north of John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC234055
Elymus multisetus
John Thomas Howell
1941-6-10
16292
Marin
Black Point
Comment
CAS-BOT-BC234058
Elymus multisetus
John Thomas Howell
1942-6-21
16990
Marin
Carson Ridge
Comment
CAS-BOT-BC234059
Elymus multisetus
John Thomas Howell
1943-5-15
18072
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC234060
Elymus multisetus
John Thomas Howell
1941-5-25
16231
Marin
Between Potrero Meadow & Mountain Theatre, Mt. Tamalpais
Comment
CAS-BOT-BC234677
Symphoricarpos mollis
John Thomas Howell
1939-5-21
s.n.
Marin
Shelter Cove, Tiburon
Comment
CAS-BOT-BC234680
Symphoricarpos mollis
John Thomas Howell
1943-5-15
18088
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC235332
Sorghum halepense
John Thomas Howell
1939-9-3
15344
Marin
San Antonio Creek
Comment
CAS-BOT-BC235896
Keckiella corymbosa
John Thomas Howell
1946-7-7
22187
Marin
Above Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC236222
Poa secunda subsp. secunda
John Thomas Howell
1946-5-16
21895
Marin
Angel Island, N side
Comment
CAS-BOT-BC236224
Poa secunda subsp. secunda
John Thomas Howell
1943-5-15
18093
Marin
Tiburon Peninsula, S end
Comment
CAS-BOT-BC236612
Spartina foliosa
John Thomas Howell
1957-9-15
32951
Marin
Richardson Bay
Comment
CAS-BOT-BC236614
Spartina foliosa
John Thomas Howell
1945-8-14
21413
Marin
Burdell marshes
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-BC237514
Polypogon viridis
John Thomas Howell
1944-6-25
19641
Marin
San Rafael
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-BC238765
Sambucus nigra subsp. caerulea
John Thomas Howell
1949-6-26
25352
Marin
Deer Park, Fairfax hills
Comment
CAS-BOT-BC240004
Scribneria bolanderi
John Thomas Howell
1946-5-12
21776
Marin
South end of Carson Ridge
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-BC240060
Secale cereale
John Thomas Howell
1945-5-9
20844
Marin
Ignacio
Comment
CAS-BOT-BC24028
Arctostaphylos canescens subsp. canescens
John Thomas Howell
1926-2-28
1652
Marin
Mt. Tamalpais, Rock Spring Trail
Comment
CAS-BOT-BC240508
Lonicera hispidula
John Thomas Howell
1946-6-16
22084
Marin
Pt. Reyes Station
Comment
CAS-BOT-BC241292
Castilleja latifolia
John Thomas Howell
1930-4-20
4738
Marin
Pt. Reyes
Comment
CAS-BOT-BC241297
Castilleja latifolia
John Thomas Howell
1941-5-18
16190
Marin
Stinson Beach
Comment
CAS-BOT-BC241300
Castilleja latifolia
John Thomas Howell
1946-4-14
21617
Marin
Near Tomales
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-BC243544
Setaria parviflora
John Thomas Howell
1946-9-8
22997
Marin
Phoenix Lake, Mt. Tamalpais
Comment
CAS-BOT-BC243625
Setaria pumila
John Thomas Howell
1954-10-21
30112
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC244211
Poa unilateralis
John Thomas Howell
1944-6-4
19557
Marin
Inverness Ridge W of Inverness
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-BC244529
Poa secunda subsp. secunda
John Thomas Howell
1941-4-17
s.n.
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC246654
Poa howellii
John Thomas Howell
1941-5-25
16203
Marin
Arturo Trail, Mt. Tamalpais
Comment
CAS-BOT-BC246657
Poa howellii
John Thomas Howell
1944-5-14
19464
Marin
Salmon Creek Canyon
Comment
CAS-BOT-BC246667
Poa howellii
John Thomas Howell
1941-5-25
16201
Marin
West Point to West Peak, Mt. Tamalpais
Comment
CAS-BOT-BC247324
Poa pratensis
John Thomas Howell
1943-5-22
18116
Marin
Fairfax
Comment
CAS-BOT-BC247327
Poa pratensis
John Thomas Howell
1941-5-25
16217
Marin
Rifle Camp, Mt. Tamalpais
Comment
CAS-BOT-BC24829
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1947-1-12
s.n
Marin
Above Muir Woods, south side of Mt. Tamalpais
Comment
CAS-BOT-BC24831
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1954-2-28
29128
Marin
Lower part of Throckmorton Ridge near Matt Davis Trail, Mt. Tamalpais
Comment
CAS-BOT-BC24833
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1944-11-22
20768
Marin
Inverness Ridge
Comment
CAS-BOT-BC24834
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1944-3-26
19354
Marin
Inverness Ridge west of Inverness
Comment
CAS-BOT-BC24835
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1933-3-19
10866 A
Marin
Slopes at head of Muir Woods, Mt. Tamalpais
Comment
CAS-BOT-BC24836
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell
1933-3-19
10866
Marin
At head of Marin Woods.
Comment
CAS-BOT-BC249140
Castilleja affinis
John Thomas Howell
1969-5-5
45567
Marin
Near Paradise Cove, Tiburon Peninsula
Comment
CAS-BOT-BC250600
Phalaris minor
John Thomas Howell
1946-5-16
21856
Marin
Angel Island, se. side
Comment
CAS-BOT-BC250601
Phalaris minor
John Thomas Howell
1939-6-25
14805
Marin
South side of Mt. Tamalpais above Cascade Canyon
Comment
CAS-BOT-BC250603
Phalaris minor
John Thomas Howell
1944-5-28
19511
Marin
Between Manzanita and Almonte
Comment
CAS-BOT-BC250723
Phalaris paradoxa
John Thomas Howell
1943-5-30
18179
Marin
Summit Ave., Mill Valley
Comment
CAS-BOT-BC253552
Phleum alpinum
John Thomas Howell
1946-6-13
22052
Marin
East of Dillons Beach
Comment
CAS-BOT-BC253944
Parapholis incurva
John Thomas Howell
1944-5-28
19508
Marin
Manzanita
Comment
CAS-BOT-BC254662
Poa douglasii
John Thomas Howell
1945-8-5
21369
Marin
Stinson Beach
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-BC258839
Phalaris angusta
John Thomas Howell
1947-6-18
23266
Marin
Laguna, Chileno Valley
Comment
CAS-BOT-BC259065
Phalaris lemmonii
John Thomas Howell
1945-5-6
20810
Marin
San Rafael Hills
Comment
CAS-BOT-BC259066
Phalaris lemmonii
John Thomas Howell
1945-5-9
20833
Marin
Between Hamilton Field and Ignacio
Comment
CAS-BOT-BC259069
Phalaris lemmonii
John Thomas Howell
1947-5-4
23136
Marin
San Rafael
Comment
CAS-BOT-BC259191
Eriogonum latifolium
John Thomas Howell
1939-7-2
14825
Marin
Ridge between Tennessee Cove and Pirates Cove
Comment
CAS-BOT-BC259494
Eriogonum luteolum var. caninum
John Thomas Howell
1944-7-7
19683
Marin
Between Lagunitas Meadows and Fairfax
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-BC259521
Eriogonum luteolum var. caninum
John Thomas Howell
1945-9-2
s.n.
Marin
Black Canyon, San Raphael [Rafael] Hills
Comment
CAS-BOT-BC259925
Nassella lepida
John Thomas Howell
1944-5-14
19469
Marin
Salmon Creek Canyon
Comment
CAS-BOT-BC259926
Nassella lepida
John Thomas Howell
1940-5-12
15427
Marin
Between Little Carson and Carson Ridge
Comment
CAS-BOT-BC259928
Nassella lepida
John Thomas Howell
1945-5-6
20809
Marin
San Rafael Hills
Comment
CAS-BOT-BC259929
Nassella lepida
John Thomas Howell
1943-5-30
18195
Marin
Azalea Flat, Mount Tamalpais
Comment
CAS-BOT-BC259934
Nassella lepida
John Thomas Howell
1946-5-16
21896
Marin
Angel Island, N side
Comment
CAS-BOT-BC259937
Nassella lepida
John Thomas Howell
1946-5-19
21916
Marin
Carson Ridge
Comment
CAS-BOT-BC260146
Nassella pulchra
John Thomas Howell
1946-5-16
21849
Marin
Angel Island, SE side
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-BC260149
Nassella pulchra
John Thomas Howell
1941-5-25
16211
Marin
Rifle Camp, Mount Tamalpais
Comment
CAS-BOT-BC260150
Nassella pulchra
John Thomas Howell
1966-4-18
41487
Marin
Just S of church, John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-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-BC260952
Pleuropogon californicus var. californicus
John Thomas Howell
1941-6-10
16280
Marin
Near Black Point
Comment
CAS-BOT-BC260954
Pleuropogon californicus var. californicus
John Thomas Howell
1945-5-9
20828
Marin
Between Hamilton Field and Ignacio
Comment
CAS-BOT-BC262517
Melica torreyana
John Thomas Howell
1933-4-30
11186
Marin
North side of Mt. Tamalpais
Comment
CAS-BOT-BC262520
Melica torreyana
John Thomas Howell
1941-5-25
16240
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC262528
Melica torreyana
John Thomas Howell
1939-5-14
14658
Marin
Ross
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-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-BC265643
Paspalum distichum
John Thomas Howell
1943-7-4
18280
Marin
Near Inverness
Comment
CAS-BOT-BC265768
Phalaris aquatica
John Thomas Howell
No date on label.
s.n.
Marin
Shore of Bolinas Bay just north of Stinson Beach
Comment
CAS-BOT-BC265769
Phalaris aquatica
John Thomas Howell
1945-7-1
21266
Marin
Tiburon
Comment
CAS-BOT-BC265770
Phalaris aquatica
John Thomas Howell
1946-6-13
22018
Marin
Ignacio
Comment
CAS-BOT-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-BC267190
Potamogeton foliosus
John Thomas Howell
1946-7-4
s.n.
Marin
Back of Dillons Beach
Comment
CAS-BOT-BC268919
Eriogonum nudum var. auriculatum
John Thomas Howell
1941-6-8
16260
Marin
Hills ne. of San Rafael
Comment
CAS-BOT-BC268924
Eriogonum nudum var. auriculatum
John Thomas Howell
1945-7-8
21288
Marin
San Antonio Station
Comment
CAS-BOT-BC268931
Eriogonum nudum var. auriculatum
John Thomas Howell
1926-10-20
2224
Marin
Near Alto
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-BC270540
Calycadenia multiglandulosa
John Thomas Howell
1946-6-20
22109
Marin
4 miles S of Olema
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-BC27201
Arctostaphylos cushingiana f. repens
John Thomas Howell
1944-6-4
19537
Marin
Inverness Ridge
Comment
CAS-BOT-BC27203
Arctostaphylos cushingiana f. repens
John Thomas Howell
1944-6-4
19537
Marin
Inverness Ridge
Comment
CAS-BOT-BC27204
Arctostaphylos cushingiana f. repens
John Thomas Howell
1944-3-26
19353
Marin
Inverness Ridge W of Inverness
Comment
CAS-BOT-BC272228
Leymus pacificus
John Thomas Howell
1947-6-4
23222
Marin
Pt. Reyes Peninsula
Comment
CAS-BOT-BC272229
Leymus pacificus
John Thomas Howell
1948-6-6
24335
Marin
Stinson Beach
Comment
CAS-BOT-BC273524
Hordeum vulgare
John Thomas Howell
1945-6-3
20918
Marin
Near Inverness
Comment
CAS-BOT-BC274487
Leymus triticoides
John Thomas Howell
1939-5-21
s.n.
Marin
West side, Tiburon Peninsula
Comment
CAS-BOT-BC278319
Festuca californica subsp. californica
John Thomas Howell
1939-5-14
14667
Marin
Between Phoenix Lake and Lake Lagunitas
Comment
CAS-BOT-BC278324
Festuca californica subsp. californica
John Thomas Howell
1943-4-11
17912
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC278327
Festuca californica subsp. californica
John Thomas Howell
1946-5-16
21888
Marin
Angel Island
Comment
CAS-BOT-BC278333
Festuca californica subsp. californica
John Thomas Howell
1938-6-19
13920
Marin
Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC278442
Festuca idahoensis
John Thomas Howell
1944-5-21
19492
Marin
Lagunitas Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC278444
Festuca idahoensis
John Thomas Howell
1942-6-21
16996
Marin
Carson Ridge
Comment
CAS-BOT-BC27846
Calamagrostis ophitidis
John Thomas Howell
1941-6-29
16334
Marin
Between Rock Spring and Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC27856
Blennosperma nanum var. robustum
John Thomas Howell
1947-5-14
23153
Marin
Pt. Reyes Peninsula above McClure Beach
Comment
CAS-BOT-BC27857
Blennosperma nanum var. robustum
John Thomas Howell
1947-5-14
23153
Marin
Pt. Reyes Peninsula above McClure Beach
Comment
CAS-BOT-BC278821
Festuca occidentalis
John Thomas Howell
1946-6-2
21989
Marin
Lake Lagunitas, Mt. Tamalpais
Comment
CAS-BOT-BC278823
Festuca occidentalis
John Thomas Howell
1945-5-27
20888
Marin
Railroad grade at Fern Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC278983
Festuca rubra
John Thomas Howell
1943-6-8
18220
Marin
Tiburon
Comment
CAS-BOT-BC278985
Festuca rubra
John Thomas Howell
1941-5-25
16216
Marin
Rifle Camp, Mt. Tamalpais
Comment
CAS-BOT-BC278988
Festuca rubra
John Thomas Howell
1941-6-29
16331
Marin
Between Rock Spring and Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC278989
Festuca rubra
John Thomas Howell
1944-6-4
19561
Marin
Near Mt. Vision west of Inverness
Comment
CAS-BOT-BC278997
Festuca rubra
John Thomas Howell
1944-6-4
19556
Marin
Inverness Ridge west of Inverness
Comment
CAS-BOT-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-BC280467
Cirsium quercetorum
John Thomas Howell
1943-6-6
18200
Marin
Between Mill Valley and Muir Woods
Comment
CAS-BOT-BC280754
Holcus lanatus
John Thomas Howell
1943-6-13
s.n.
Marin
Sausalito
Comment
CAS-BOT-BC281332
Melica harfordii
John Thomas Howell
1938-6-19
13928
Marin
Near Rattlesnake, Mt Tamalpais
Comment
CAS-BOT-BC281334
Melica harfordii
John Thomas Howell
1941-5-25
16204
Marin
Arturo Trail, Mt Tamalpais
Comment
CAS-BOT-BC281718
Carduus pycnocephalus
John Thomas Howell
1946-5-4
21754
Marin
Along Redwood Highway near Burdell
Comment
CAS-BOT-BC282143
Melica geyeri
John Thomas Howell
1946-4-14
21608
Marin
Near Tomales
Comment
CAS-BOT-BC282146
Melica geyeri
John Thomas Howell
1947-5-18
23185
Marin
Lagunitas Meadows at foot of Berry Trail
Comment
CAS-BOT-BC282148
Melica geyeri
John Thomas Howell
1943-5-2
s.n.
Marin
Big Carson Canyon
Comment
CAS-BOT-BC282149
Melica geyeri
John Thomas Howell
1941-5-25
16227
Marin
Potrero Meadow, Mount Tamalpais
Comment
CAS-BOT-BC282151
Melica geyeri
John Thomas Howell
1943-5-22
18118
Marin
Fairfax
Comment
CAS-BOT-BC282503
Festuca elmeri
John Thomas Howell
1944-7-7
s.n.
Marin
Camp Handy, Mt. Tamalpais
Comment
CAS-BOT-BC282506
Festuca elmeri
John Thomas Howell
1947-5-4
23121
Marin
San Rafael Hills
Comment
CAS-BOT-BC282508
Festuca elmeri
John Thomas Howell
1945-5-13
20860
Marin
Fairfax Hills n. of Phoenix Lake
Comment
CAS-BOT-BC282509
Festuca elmeri
John Thomas Howell
1939-5-14
14665
Marin
Between Phoenix Lake and Lake Lagunitas
Comment
CAS-BOT-BC282512
Festuca elmeri
John Thomas Howell
1945-5-27
20878
Marin
Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC282629
Gastridium phleoides
John Thomas Howell
1946-5-16
s.n.
Marin
Angel Island
Comment
CAS-BOT-BC282800
Glyceria leptostachya
John Thomas Howell
1946-6-16
22077
Marin
Olema Marshes
Comment
CAS-BOT-BC282803
Glyceria leptostachya
John Thomas Howell
1939-7-2
14823
Marin
Elk Valley
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-BC283521
Leymus X vancouverensis
John Thomas Howell
1946-7-4
22177
Marin
Dillons Beach
Comment
CAS-BOT-BC283526
Leymus X vancouverensis
John Thomas Howell
1946-7-4
22177
Marin
Dillons Beach
Comment
CAS-BOT-BC28383
Carex gracilior
John Thomas Howell
1946-5-16
21870
Marin
Angel Island, S side.
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-BC284135
Eragrostis pectinacea var. pectinacea
John Thomas Howell
1954-9-23
30109
Marin
Milton H. Esberg place, Ross
Comment
CAS-BOT-BC284997
Hordeum depressum
John Thomas Howell
1966-4-18
41491
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC285599
Cirsium occidentale var. occidentale
John Thomas Howell
1941-5-18
16188
Marin
Stinson Beach
Comment
CAS-BOT-BC285602
Cirsium occidentale var. occidentale
John Thomas Howell
1945-7-4
21273
Marin
Inverness Ridge
Comment
CAS-BOT-BC285604
Cirsium occidentale var. occidentale
John Thomas Howell
1946-5-16
21879
Marin
Angel Island, s. side
Comment
CAS-BOT-BC285607
Cirsium occidentale var. occidentale
John Thomas Howell
1941-5-18
16195
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC285798
Cirsium vulgare
John Thomas Howell
1950-6-18
26629
Marin
Fern Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC286131
Conyza canadensis
John Thomas Howell
1944-3-26
19349
Marin
Pt. Reyes road west of Ledum Swamp
Comment
CAS-BOT-BC286135
Conyza canadensis
John Thomas Howell
1939-6-18
14768
Marin
Near Mud Lake
Comment
CAS-BOT-BC286375
Cirsium occidentale var. occidentale
John Thomas Howell
1939-6-25
14801
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC286376
Cirsium occidentale var. occidentale
John Thomas Howell
1942-5-16
16956
Marin
Sausalito Hills
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-BC286528
Cirsium occidentale var. venustum
John Thomas Howell
1939-6-25
14790
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC286532
Cirsium occidentale var. venustum
John Thomas Howell
1941-6-10
16288
Marin
Black Point
Comment
CAS-BOT-BC286534
Cirsium occidentale var. venustum
John Thomas Howell
1943-5-30
18188
Marin
Northside Trail, Mt. Tamalpais
Comment
CAS-BOT-BC28669
Achillea millefolium
John Thomas Howell
1944-7-23
19850
Marin
Santa Venetia
Comment
CAS-BOT-BC287390
Deinandra corymbosa
John Thomas Howell
1941-6-8
16252
Marin
Hills NE of San Rafael
Comment
CAS-BOT-BC287391
Deinandra corymbosa
John Thomas Howell
1944-6-25
19650
Marin
Santa Venetia
Comment
CAS-BOT-BC287393
Deinandra corymbosa
John Thomas Howell
1939-9-3
15336
Marin
Near Black Point
Comment
CAS-BOT-BC288684
Cirsium quercetorum
John Thomas Howell
1939-6-4
14718
Marin
Point Reyes lighthouse
Comment
CAS-BOT-BC288690
Cirsium quercetorum
John Thomas Howell
1939-6-25
14796
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC288691
Cirsium quercetorum
John Thomas Howell
1946-5-16
21878 A
Marin
Angel Island
Comment
CAS-BOT-BC288736
Cirsium remotifolium
John Thomas Howell
1939-6-25
14799
Marin
Summit Avenue, Mill Valley
Comment
CAS-BOT-BC288740
Cirsium remotifolium
John Thomas Howell
1949-6-12
25349
Marin
Corte Madera Ridge, Mt Tamalpais
Comment
CAS-BOT-BC288743
Cirsium remotifolium
John Thomas Howell
1946-5-16
21878
Marin
Angel Island, S side
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-BC289345
Hordeum murinum subsp. glaucum
John Thomas Howell
1949-4-24
25307
Marin
Fort McDowll, Angel Island
Comment
CAS-BOT-BC289346
Hordeum murinum subsp. glaucum
John Thomas Howell
1949-4-24
25307
Marin
Fort McDowll, Angel Island
Comment
CAS-BOT-BC289348
Hordeum murinum subsp. glaucum
John Thomas Howell
1949-4-6
25294
Marin
Hamilton Field
Comment
CAS-BOT-BC289500
Hordeum brachyantherum subsp. californicum
John Thomas Howell
1943-5-15
18068
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC289503
Hordeum brachyantherum subsp. californicum
John Thomas Howell
1966-6-9
41562
Marin
South of church, John Thomas Howel Botanical Garden, Tiburon
Comment
CAS-BOT-BC292750
Cirsium occidentale var. venustum
John Thomas Howell
1940-5-26
15519
Marin
San Anselmo Canyon
Comment
CAS-BOT-BC292751
Cirsium occidentale var. venustum
John Thomas Howell
1930-7-20
5386
Marin
Wheeler Trail above Mill Valley, Mt. Tamalpais
Comment
CAS-BOT-BC299922
Erechtites minimus
John Thomas Howell
1944-7-30
19857
Marin
Almonte
Comment
CAS-BOT-BC300237
Erigeron reductus var. angustatus
John Thomas Howell
1946-7-7
22197
Marin
South of Barths Retreat, Mt. Tamalpais
Comment
CAS-BOT-BC301193
Eriophyllum lanatum var. arachnoideum
John Thomas Howell
1930-4-20
4737
Marin
Pt. Reyes
Comment
CAS-BOT-BC301211
Eriophyllum lanatum var. arachnoideum
John Thomas Howell
1942-6-21
16985
Marin
Carson Ridge
Comment
CAS-BOT-BC301937
Eriophyllum staechadifolium
John Thomas Howell
1946-5-16
21862
Marin
Angel Island, se. side
Comment
CAS-BOT-BC302622
Gnaphalium palustre
John Thomas Howell
1946-9-20
23024
Marin
Marin-Sonoma county line, east of Aurora School
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-BC30423
Achyrachaena mollis
John Thomas Howell
1945-5-9
20824
Marin
Between Hamilton Field and Ignacio
Comment
CAS-BOT-BC30424
Achyrachaena mollis
John Thomas Howell
1969-5-5
45569
Marin
Ring Hill, Tiburon Peninsula
Comment
CAS-BOT-BC304430
Grindelia hirsutula
John Thomas Howell
1933-7-30
11482
Marin
At Inverness
Comment
CAS-BOT-BC304433
Grindelia hirsutula
John Thomas Howell
1944-7-9
19719
Marin
South of Tomales Bay
Comment
CAS-BOT-BC304439
Grindelia hirsutula
John Thomas Howell
1933-10-8
11710
Marin
Pt. Reyes Peninsula
Comment
CAS-BOT-BC304440
Grindelia hirsutula
John Thomas Howell
1939-6-4
14713
Marin
Pt. Reyes lighthouse
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-BC304463
Grindelia hirsutula
John Thomas Howell
1939-7-16
14854
Marin
Between Mt. Theater and Bootjack, Mt. Tamalpais
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-BC304476
Grindelia hirsutula
John Thomas Howell
1933-4-12
10996
Marin
Sausalito Hills
Comment
CAS-BOT-BC304478
Grindelia hirsutula
John Thomas Howell
1933-7-23
11456
Marin
Sausalito Hills
Comment
CAS-BOT-BC304479
Grindelia hirsutula
John Thomas Howell
1933-7-23
11455
Marin
Sausalito Hills
Comment
CAS-BOT-BC304487
Grindelia hirsutula
John Thomas Howell
1933-7-30
11484
Marin
Shores of Bolinas Bay
Comment
CAS-BOT-BC304490
Grindelia hirsutula
John Thomas Howell
1946-8-23
22889
Marin
Pierce Pt. road, Pt. Reyes Peninsula
Comment
CAS-BOT-BC304493
Grindelia hirsutula
John Thomas Howell
1945-7-4
21272
Marin
Inverness Ridge
Comment
CAS-BOT-BC304498
Grindelia hirsutula
John Thomas Howell
1933-11-19
11721
Marin
Ignacio
Comment
CAS-BOT-BC304815
Grindelia hirsutula
J. T. Howell
1933-10-8
11701
Marin
Pt. Reyes
Comment
CAS-BOT-BC305351
Helianthus annuus
John Thomas Howell
1946-9-20
23011
Marin
Novato
Comment
CAS-BOT-BC306194
Hemizonia congesta subsp. congesta
John Thomas Howell
1945-7-29
21337
Marin
Bolinas
Comment
CAS-BOT-BC306252
Hemizonia congesta subsp. lutescens
John Thomas Howell
1946-9-8
22991
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-BC309607
Hemizonia congesta subsp. lutescens
John Thomas Howell
1946-9-8
22990
Marin
Near Ignacio
Comment
CAS-BOT-BC309636
Hemizonia congesta subsp. lutescens
John Thomas Howell
1944-5-14
19455
Marin
Pt. Reyes Station
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-BC310219
Hesperevax sparsiflora var. brevifolia
John Thomas Howell
1947-4-23
23063
Marin
Drakes Estero west of Mt. Vision
Comment
CAS-BOT-BC311042
Heterotheca oregona var. oregona
John Thomas Howell
1939-9-3
15332
Marin
Corte Madera salt marsh
Comment
CAS-BOT-BC311172
Heterotheca sessiliflora subsp. bolanderi
John Thomas Howell
1939-7-2
14831
Marin
Ridge between Tennessee Cove and Pirates Cove
Comment
CAS-BOT-BC311177
Heterotheca sessiliflora subsp. bolanderi
John Thomas Howell
1946-8-23
22890
Marin
Pierce Pt. road, Pt. Reyes Peninsula
Comment
CAS-BOT-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-BC314421
Grindelia hirsutula
John Thomas Howell
1957-9-15
32961
Marin
Saltmarsh, Larkspur
Comment
CAS-BOT-BC314434
Grindelia hirsutula
John Thomas Howell
1933-7-30
11483
Marin
Head of Tomales Bay
Comment
CAS-BOT-BC314454
Grindelia hirsutula
John Thomas Howell
1966-7-20
41990
Marin
Area adjacent to the John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC314457
Grindelia hirsutula
John Thomas Howell
1946-6-13
22038
Marin
Chileno Valley
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-BC31654
Carex lyngbyei
John Thomas Howell
1949-5-22
25323
Marin
Salt marsh, 1 mi S of Inverness.
Comment
CAS-BOT-BC31655
Carex lyngbyei
John Thomas Howell
1949-5-22
25323
Marin
Salt marsh, 1 mi S of Inverness.
Comment
CAS-BOT-BC31656
Carex lyngbyei
John Thomas Howell
1949-5-22
25323
Marin
Salt marsh, 1 mi S of Inverness.
Comment
CAS-BOT-BC321791
Layia gaillardioides
John Thomas Howell
1947-4-27
23091
Marin
Bald Mt. west of San Anselmo
Comment
CAS-BOT-BC322601
Micropus amphibolus
John Thomas Howell
1946-5-16
21871
Marin
S. side, Angel Island
Comment
CAS-BOT-BC322603
Micropus amphibolus
John Thomas Howell
1944-4-13
19387
Marin
Big Rock Ridge west of Hamilton Field
Comment
CAS-BOT-BC322606
Micropus amphibolus
John Thomas Howell
1943-5-22
18148
Marin
Fairfax Hills
Comment
CAS-BOT-BC322608
Micropus amphibolus
John Thomas Howell
1943-4-11
17921
Marin
Black Canyon, San Rafael Hills
Comment
CAS-BOT-BC322732
Microseris paludosa
John Thomas Howell
1947-4-30
23112
Marin
Dillons Beach
Comment
CAS-BOT-BC322737
Microseris paludosa
John Thomas Howell
1944-5-27
19501
Marin
Summit Avenue ridge, Mt. Tamalpais
Comment
CAS-BOT-BC322742
Microseris paludosa
John Thomas Howell
1946-6-13
22054
Marin
East of Dillons Beach
Comment
CAS-BOT-BC323977
Layia chrysanthemoides
John Thomas Howell
1944-5-14
19474
Marin
Chileno Valley
Comment
CAS-BOT-BC324138
Lessingia hololeuca
John Thomas Howell
1926-9-9
2192
Marin
Baltimore Park
Comment
CAS-BOT-BC324140
Lessingia hololeuca
John Thomas Howell
1926-10-20
2223
Marin
Corte Madera
Comment
CAS-BOT-BC324141
Lessingia hololeuca
John Thomas Howell
1945-9-2
21452
Marin
San Rafael Hills
Comment
CAS-BOT-BC324149
Lessingia hololeuca
John Thomas Howell
1945-9-2
21452
Marin
San Rafael Hills
Comment
CAS-BOT-BC324151
Lessingia hololeuca
John Thomas Howell
1946-9-8
22992
Marin
Near Ignacio
Comment
CAS-BOT-BC324153
Lessingia hololeuca
John Thomas Howell
1926-10-20
2222
Marin
On ridge between Alto and Chapman
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-BC327983
Pentachaeta alsinoides
John Thomas Howell
1947-4-27
23099
Marin
Bald Mt. west of San Anselmo
Comment
CAS-BOT-BC327985
Pentachaeta alsinoides
John Thomas Howell
1947-5-4
23118
Marin
San Rafael Hills
Comment
CAS-BOT-BC338177
Lasthenia californica
John Thomas Howell
1946-4-14
21635
Marin
Near Dillons Beach
Comment
CAS-BOT-BC34028
Carex brevicaulis
John Thomas Howell
1944-4-2
19359
Marin
Bolinas Ridge.
Comment
CAS-BOT-BC34074
Carex brevicaulis
John Thomas Howell
1938-6-19
13925
Marin
Head of Steep Ravine, Mt. Tamalpais.
Comment
CAS-BOT-BC341498
Lagophylla ramosissima
John Thomas Howell
1945-9-2
21453
Marin
San Rafael Hills
Comment
CAS-BOT-BC341499
Lagophylla ramosissima
John Thomas Howell
1944-6-25
19656
Marin
Santa Venetia
Comment
CAS-BOT-BC342210
Logfia filaginoides
John Thomas Howell
1943-4-11
17899
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC342629
Madia anomala
John Thomas Howell
1947-4-27
23097
Marin
Bald Mt. west of San Anselmo
Comment
CAS-BOT-BC342632
Madia anomala
John Thomas Howell
1943-5-22
18136
Marin
Fairfax hills
Comment
CAS-BOT-BC343084
Madia gracilis
John Thomas Howell
1930-7-20
5371
Marin
Slopes near Phoenix Lake
Comment
CAS-BOT-BC343087
Madia gracilis
John Thomas Howell
1946-5-25
21931
Marin
Greenbrae Hills
Comment
CAS-BOT-BC343090
Madia gracilis
John Thomas Howell
1939-6-18
14777
Marin
Near Mud Lake
Comment
CAS-BOT-BC343605
Madia sativa
John Thomas Howell
1945-7-15
21293
Marin
Ridgecrest Blvd. at Fairfax city limits
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-BC34391
Carex cusickii
John Thomas Howell
1942-7-12
17021
Marin
Potrero Meadows, Mt. Tamalpais.
Comment
CAS-BOT-BC34393
Carex cusickii
John Thomas Howell
1938-6-5
13902
Marin
Rock Spring, Mt. Tamalpais.
Comment
CAS-BOT-BC348741
Microseris bigelovii
John Thomas Howell
1943-5-22
18150
Marin
Fairfax Hills
Comment
CAS-BOT-BC348745
Microseris bigelovii
John Thomas Howell
1946-5-16
21859
Marin
Angel Island, se. side
Comment
CAS-BOT-BC348751
Microseris bigelovii
J. T. Howell
1946-5-19
21910
Marin
Meadows Club, Fairfax Hills
Comment
CAS-BOT-BC348927
Microseris douglasii subsp. douglasii
John Thomas Howell
1946-5-12
21825
Marin
Carson country
Comment
CAS-BOT-BC348930
Microseris douglasii subsp. douglasii
John Thomas Howell
1946-5-14
21837
Marin
Between Barth's Retreat and Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC348931
Microseris douglasii subsp. douglasii
John Thomas Howell
1941-5-25
16221
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC348933
Microseris douglasii subsp. douglasii
John Thomas Howell
1939-5-14
14671
Marin
Lake Lagunitas Meadows
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-BC348939
Microseris douglasii subsp. douglasii
John Thomas Howell
1947-5-18
23175
Marin
Fairfax hills
Comment
CAS-BOT-BC348940
Microseris douglasii subsp. douglasii
John Thomas Howell
1942-6-21
16979
Marin
Carson Ridge
Comment
CAS-BOT-BC35002
Carex densa
John Thomas Howell
1937-6-13
13054
Marin
Bolinas.
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-BC35018
Carex densa
John Thomas Howell
1943-5-15
18077
Marin
Tiburon Peninsula.
Comment
CAS-BOT-BC35020
Carex densa
John Thomas Howell
1944-4-23
19402
Marin
Hills SE of Kentfield.
Comment
CAS-BOT-BC35022
Carex densa
John Thomas Howell
1944-7-2
s.n.
Marin
Mt. Tamalpais. Potrero Meadow.
Comment
CAS-BOT-BC35028
Carex densa
John Thomas Howell
1946-6-13
22055
Marin
Esters School north of Dillon Beach.
Comment
CAS-BOT-BC355185
Lasthenia glaberrima
John Thomas Howell
1941-6-10
16305
Marin
9 miles west of Novato
Comment
CAS-BOT-BC355188
Lasthenia glaberrima
John Thomas Howell
1944-5-21
19495
Marin
Lagunitas Meadows, Mt. Tamalpais
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-BC355479
Lasthenia glaberrima
John Thomas Howell
1941-6-10
16305
Marin
9 mi. W of Novato
Comment
CAS-BOT-BC356726
Pseudognaphalium californicum
John Thomas Howell
1939-7-2
14829
Marin
Ridge between Tennessee Cove and Pirates Cove
Comment
CAS-BOT-BC356729
Pseudognaphalium californicum
John Thomas Howell
1941-5-18
s.n.
Marin
Stinson Beach
Comment
CAS-BOT-BC356737
Pseudognaphalium californicum
John Thomas Howell
1943-5-9
17956
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC36111
Lithocarpus densiflorus var. densiflorus
John Thomas Howell
1927-8-22
3036
Marin
near West Point, Mt. Tamalpais
518
Comment
CAS-BOT-BC36114
Lithocarpus densiflorus var. densiflorus
John Thomas Howell
1947-5-25
23206
Marin
Berry Trail, Mt. Tamalpais
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-BC362485
Rafinesquia californica
John Thomas Howell
1945-6-3
20937
Marin
Shell Beach
Comment
CAS-BOT-BC362912
Rigiopappus leptocladus
John Thomas Howell
1942-6-21
16989
Marin
Carson Ridge
Comment
CAS-BOT-BC363327
Senecio aronicoides
John Thomas Howell
1946-4-21
21685
Marin
Down near radio station, Pt. Reyes Peninsula
Comment
CAS-BOT-BC363709
Senecio hydrophilus
John Thomas Howell
1946-6-13
22029
Marin
Chileno Valley
Comment
CAS-BOT-BC364231
Senecio sylvaticus
John Thomas Howell
1947-10-19
24192
Marin
Strand of Alpine Lake
Comment
CAS-BOT-BC36466
Chrysolepis chrysophylla var. minor
John Thomas Howell
1947-7-6
23327
Marin
Eldridge Grade above Phoenix Lake, Mt. Tamalpais
Comment
CAS-BOT-BC365042
Solidago velutina subsp. californica
John Thomas Howell
1945-9-2
21458
Marin
San Rafael Hills
Comment
CAS-BOT-BC365047
Solidago velutina subsp. californica
John Thomas Howell
1946-8-23
22886
Marin
Pierce Pt. road, Pt. Reyes Peninsula
Comment
CAS-BOT-BC365450
Solidago elongata
John Thomas Howell
1946-6-30
22155
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC366967
Lasthenia minor
John Thomas Howell
1930-4-20
4733
Marin
Pt Reyes
Comment
CAS-BOT-BC37472
Cardamine californica
John Thomas Howell
1939-4-23
14612
Marin
Mount Tamalpais. Corte Madera Ridge.
Comment
CAS-BOT-BC374827
Stebbinsoseris heterocarpa
John Thomas Howell
1944-5-27
19502
Marin
Summit Ave. ridge, Mt. Tamalpais
Comment
CAS-BOT-BC374831
Stebbinsoseris heterocarpa
John Thomas Howell
1946-5-19
21908
Marin
Meadows Club, Fairfax Hills
Comment
CAS-BOT-BC375825
Stephanomeria virgata
John Thomas Howell
1945-7-15
21295
Marin
Fairfax Hills
Comment
CAS-BOT-BC37915
Cardamine oligosperma
John Thomas Howell
1946-5-4
21733
Marin
Dillons Beach.
Comment
CAS-BOT-BC381915
Uropappus lindleyi
John Thomas Howell
1947-4-27
23082
Marin
Bald Mt. west of San Anselmo
Comment
CAS-BOT-BC381918
Uropappus lindleyi
John Thomas Howell
1945-5-6
20802
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-BC384485
Silene antirrhina
John Thomas Howell
1943-5-9
17983
Marin
San Rafael hills
Comment
CAS-BOT-BC384486
Silene antirrhina
John Thomas Howell
1943-4-11
17900
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC38521
Arctostaphylos montana subsp. montana
John Thomas Howell
1926-2-28
1655
Marin
Mt. Tamalpais on south side.
Comment
CAS-BOT-BC38540
Arctostaphylos montana subsp. montana
John Thomas Howell
1930-7-20
5380
Marin
Near Phoenix Lake.
Comment
CAS-BOT-BC38753
Arctostaphylos manzanita subsp. manzanita
John Thomas Howell
1943-3-7
17880
Marin
Hills northeast of San Rafael
Comment
CAS-BOT-BC38755
Arctostaphylos manzanita subsp. manzanita
John Thomas Howell
1941-6-8
16265
Marin
Hills NE of San Rafael
Comment
CAS-BOT-BC388682
Minuartia douglasii
John Thomas Howell
1946-5-12
21782
Marin
Carson Ridge
Comment
CAS-BOT-BC388984
Silene laciniata subsp. californica
John Thomas Howell
1946-7-7
22209
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC390344
Spergularia macrotheca var. macrotheca
John Thomas Howell
1945-6-3
20938
Marin
Shell Beach
Comment
CAS-BOT-BC390347
Spergularia macrotheca var. macrotheca
John Thomas Howell
1945-6-3
20938
Marin
Shell Beach
Comment
CAS-BOT-BC390816
Spergularia marina
John Thomas Howell
1944-6-25
19649
Marin
Santa Venetia
Comment
CAS-BOT-BC390818
Spergularia marina
John Thomas Howell
1939-4-23
14608
Marin
Blythedale Canyon, Mill Valley
Comment
CAS-BOT-BC390819
Spergularia marina
John Thomas Howell
1944-9-10
20735
Marin
Shell Beach north of Inverness
Comment
CAS-BOT-BC392044
Aquilegia eximia
John Thomas Howell
1944-7-7
19681
Marin
Camp Handy, Mt. Tamalpais
Comment
CAS-BOT-BC397713
Stellaria nitens
John Thomas Howell
1947-4-27
23084
Marin
Bald Mt. W of San Anselmo
Comment
CAS-BOT-BC400438
Aristolochia californica
John Thomas Howell
1945-5-13
20864
Marin
Deer Park near Fairfax
Comment
CAS-BOT-BC401396
Hypericum scouleri
John Thomas Howell
1942-7-12
17029
Marin
Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC40223
Caulanthus lasiophyllus
John Thomas Howell
1940-5-12
15429
Marin
Between Little Carson and Carson Ridge.
Comment
CAS-BOT-BC40226
Caulanthus lasiophyllus
John Thomas Howell
1943-4-11
17904
Marin
Black Canyon, San Rafael hills.
Comment
CAS-BOT-BC40227
Caulanthus lasiophyllus
John Thomas Howell
1943-4-11
17904 A
Marin
Black Canyon, San Rafael Hills.
Comment
CAS-BOT-BC40229
Caulanthus lasiophyllus
John Thomas Howell
1966-4-18
41510
Marin
Gully just north of John Thomas Howell Botanical Garden, Tiburon.
Comment
CAS-BOT-BC40231
Caulanthus lasiophyllus
John Thomas Howell
1969-5-5
45573
Marin
Ring Hill, Tiburon Peninsula.
Comment
CAS-BOT-BC403201
Eschscholzia californica
John Thomas Howell
1944-6-4
19554
Marin
Inverness Ridge west of Inverness
Comment
CAS-BOT-BC403845
Hesperocnide tenella
John Thomas Howell
1944-7-9
19698
Marin
Inverness Ridge
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-BC418879
Persicaria hydropiperoides
John Thomas Howell
1946-9-20
s.n.
Marin
Laguna in Chileno Valley
Comment
CAS-BOT-BC419022
Persicaria lapathifolia
John Thomas Howell
1941-6-10
16278
Marin
Near Black Point
Comment
CAS-BOT-BC419345
Persicaria punctata
John Thomas Howell
1946-6-30
22167
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC421527
Rumex crassus
John Thomas Howell
1944-9-24
20751
Marin
East side Bolinas Lagoon
Comment
CAS-BOT-BC421531
Rumex crassus
John Thomas Howell
1946-6-30
22138
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC422806
Papaver californicum
John Thomas Howell
1946-5-30
21962
Marin
Little Carson Canyon
Comment
CAS-BOT-BC424400
Heuchera pilosissima
John Thomas Howell
1949-6-7
25346
Marin
Dillons Beach
Comment
CAS-BOT-BC427586
Crassula aquatica
John Thomas Howell
1944-5-21
19499
Marin
Lagunitas Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC427588
Crassula aquatica
John Thomas Howell
1946-9-18
s.n.
Marin
Lake Lagunitas, Mt. Tamalpais
Comment
CAS-BOT-BC428001
Dudleya caespitosa
John Thomas Howell
1945-8-19
21446
Marin
At head of Drakes Bay
Comment
CAS-BOT-BC428003
Dudleya caespitosa
John Thomas Howell
1939-7-2
14833 A
Marin
Pirates Cove
Comment
CAS-BOT-BC428128
Dudleya cymosa subsp. cymosa
John Thomas Howell
1946-7-7
22188
Marin
Above Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC428129
Dudleya cymosa subsp. cymosa
John Thomas Howell
1943-5-22
18132
Marin
Fairfax hills
Comment
CAS-BOT-BC428813
Micranthes californica
John Thomas Howell
1946-3-24
21570
Marin
Near country club, Fairfax Hills
Comment
CAS-BOT-BC433489
Rumex fueginus
John Thomas Howell
1946-8-23
22882
Marin
Pierce Pt. road, Pt. Reyes Peninsula
Comment
CAS-BOT-BC433720
Rumex occidentalis
John Thomas Howell
1944-5-28
19517
Marin
Almonte
Comment
CAS-BOT-BC433934
Rumex salicifolius
John Thomas Howell
1946-7-7
22204
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC434102
Rumex transitorius
John Thomas Howell
1945-7-29
21335
Marin
Bolinas
Comment
CAS-BOT-BC434104
Rumex transitorius
John Thomas Howell
1946-6-30
22139
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC434119
Rumex transitorius
John Thomas Howell
1926-10-20
2225
Marin
Near Alto
Comment
CAS-BOT-BC434122
Rumex transitorius
John Thomas Howell
1945-7-1
21261
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-BC435653
Lithophragma heterophyllum
John Thomas Howell
1943-4-11
17907
Marin
Black Canyon, San Rafael hills
Comment
CAS-BOT-BC436390
Calystegia collina subsp. collina
John Thomas Howell
1940-5-12
15433
Marin
South end of Carson Ridge
Comment
CAS-BOT-BC436399
Calystegia occidentalis subsp. occidentalis
John Thomas Howell
1946-6-20
22092
Marin
Muir Beach
Comment
CAS-BOT-BC436406
Calystegia subacaulis
John Thomas Howell
1946-5-25
21935
Marin
Greenbrae HIlls
Comment
CAS-BOT-BC436501
Ligusticum apiifolium
John Thomas Howell
1933-7-23
11459
Marin
Sausalito Hills
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-BC438427
Calandrinia ciliata
John Thomas Howell
1940-5-20
15503
Marin
Pt. Reyes
Comment
CAS-BOT-BC439231
Claytonia exigua subsp. exigua
John Thomas Howell
1946-5-19
21917
Marin
Carson Ridge
Comment
CAS-BOT-BC443589
Claytonia perfoliata subsp. perfoliata
John Thomas Howell
1939-4-23
14614
Marin
Corte Madera Ridge, Mt. Tamalpais
Comment
CAS-BOT-BC44695
Arctostaphylos sensitiva
John Thomas Howell
1926-2-28
1657
Marin
South side of Mt. Tamalpais
Comment
CAS-BOT-BC44697
Arctostaphylos sensitiva
John Thomas Howell
1930-12-28
5724
Marin
Mt. Tamalpais above Mill Valley
Comment
CAS-BOT-BC45152
Anaphalis margaritacea
John Thomas Howell
1939-7-2
14835
Marin
Pirates Cove
Comment
CAS-BOT-BC451611
Lilaea scilloides
John Thomas Howell
1944-5-28
19529
Marin
Between Almonte and Mill Valley
Comment
CAS-BOT-BC451824
Triglochin maritima
John Thomas Howell
1945-8-19
21435
Marin
At head of Drakes Bay
Comment
CAS-BOT-BC451831
Triglochin maritima
John Thomas Howell
1944-6-25
19659
Marin
Between Santa Venetia and Chinese Camp
Comment
CAS-BOT-BC451835
Triglochin maritima
John Thomas Howell
1957-9-15
32960
Marin
Larkspur
Comment
CAS-BOT-BC451836
Triglochin maritima
John Thomas Howell
1944-5-7
19448
Marin
Larkspur salt marsh
Comment
CAS-BOT-BC451845
Triglochin maritima
John Thomas Howell
1944-5-28
19519
Marin
Almonte
Comment
CAS-BOT-BC451846
Triglochin maritima
John Thomas Howell
1944-5-7
19449
Marin
Larkspur salt marsh
Comment
CAS-BOT-BC451853
Triglochin maritima
John Thomas Howell
1944-5-28
19509
Marin
Manzanita
Comment
CAS-BOT-BC451965
Triglochin striata
John Thomas Howell
1946-7-4
22178
Marin
Dillons Beach
Comment
CAS-BOT-BC453526
Fragaria chiloensis
John Thomas Howell
1926-2-21
1636
Marin
Ocean bluffs at Point Reyes
Comment
CAS-BOT-BC45641
Quercus agrifolia
John Thomas Howell
1959-8-23
34600
Marin
Rock Spring and Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC46787
Arctostaphylos uva-ursi
John Thomas Howell
1944-3-26
19350
Marin
west of Ledum Swamp, Pt. Reyes
Comment
CAS-BOT-BC46804
Arctostaphylos virgata
John Thomas Howell
1926-2-22
1640
Marin
Inverness Ridge
Comment
CAS-BOT-BC46805
Arctostaphylos virgata
John Thomas Howell
1933-3-19
10867
Marin
head of Muir Woods, Mt. Tamalpais
Comment
CAS-BOT-BC46824
Arctostaphylos virgata
John Thomas Howell
1944-3-26
19342
Marin
Inverness Ridge
Comment
CAS-BOT-BC46842
Arctostaphylos virgata
John Thomas Howell
1944-4-2
19362
Marin
Bolinas Ridge
Comment
CAS-BOT-BC47436
Arctostaphylos viscida subsp. viscida
John Thomas Howell
1945-1-21
20772
Marin
San Rafael Hills
Comment
CAS-BOT-BC47772
Ceanothus
John Thomas Howell
1930-12-28
5719
Marin
Mt. Tamalpais above Mill Valley
Comment
CAS-BOT-BC49146
Ceanothus cuneatus var. ramulosus
John Thomas Howell
1939-6-25
s.n.
Marin
Summit Ave. above Mill Valley
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-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-BC50661
Ceanothus jepsonii
John Thomas Howell
1940-5-12
15434
Marin
South end of Carson Ridge
Comment
CAS-BOT-BC50663
Ceanothus jepsonii
John Thomas Howell
1926-2-28
1654
Marin
Mt. Tamalpais - Rock Spring Trail
Comment
CAS-BOT-BC50669
Ceanothus jepsonii
John Thomas Howell
1942-6-21
16992
Marin
Carson Ridge
Comment
CAS-BOT-BC50949
Ceanothus foliosus var. foliosus
John Thomas Howell
1946-5-25
21942
Marin
Hills w. of Corte Madera
Comment
CAS-BOT-BC51419
Ceanothus masonii
John Thomas Howell
1944-4-2
19365
Marin
Bolinas Ridge
Comment
CAS-BOT-BC52936
Ceanothus thyrsiflorus
John Thomas Howell
1949-5-15
25315
Marin
Inverness Ridge w. of Inverness
Comment
CAS-BOT-BC52937
Ceanothus thyrsiflorus
John Thomas Howell
1930-12-28
5714
Marin
Lower slopes of Mt. Tamalpais, Mill Valley
Comment
CAS-BOT-BC54750
Erysimum concinnum
John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True
1980-6-19
53726
Marin
Near Abbotts Lagoon, Point Reyes Peninsula.
Comment
CAS-BOT-BC58884
Gaultheria shallon
John Thomas Howell
1949-5-15
25318
Marin
Inverness Ridge west of Inverness
Comment
CAS-BOT-BC58885
Gaultheria shallon
John Thomas Howell
1947-5-8
23144
Marin
Sausalito
Comment
CAS-BOT-BC59949
Rhamnus crocea
John Thomas Howell
1946-5-16
21884
Marin
Angel Island.
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-BC61173
Streptanthus batrachopus
John Thomas Howell
1946-6-23
22122
Marin
Carson Ridge.
Comment
CAS-BOT-BC61174
Streptanthus batrachopus
John Thomas Howell
1945-6-10
20943
Marin
South of Barths Retreat. Mount Tamalpais.
Comment
CAS-BOT-BC61175
Streptanthus batrachopus
John Thomas Howell
1941-7-6
16348
Marin
Between Camp Zeische and Barth's Retreat, Mount Tamalpais.
Comment Read comments Mar 22 2019
CAS-BOT-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-BC62707
Quercus X chasei
John Thomas Howell
1946-12-22
23035
Marin
Green Brae Hills
Comment
CAS-BOT-BC62778
Quercus berberidifolia
John Thomas Howell
1944-11-12
20767
Marin
Black Canyon, San Rafael Hills
Comment
CAS-BOT-BC64423
Ceanothus foliosus
John Thomas Howell
1948-5-16
24298
Marin
Upper part of Cascade Canyon, Mt. Tamalpais.
Comment
CAS-BOT-BC65853
Aspidotis carlotta-halliae
John Thomas Howell; Hans Leschke
1943-3-21
s.n.
Marin
near south end of Tiburon
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-BC65857
Aspidotis carlotta-halliae
John Thomas Howell
1967-3-5
42037
Marin
Near Rattlesnake Camp, Mt. Tamalpais
Comment
CAS-BOT-BC65859
Aspidotis carlotta-halliae
John Thomas Howell
1967-3-5
42037
Marin
near 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-BC66952
Thysanocarpus laciniatus
John Thomas Howell
1943-4-11
17911
Marin
Black Canyon, San Rafael Hills.
Comment
CAS-BOT-BC68122
Athyrium filix-femina subsp. cyclosorum
John Thomas Howell
1926-9-26
2194
Marin
Near head of Muir Woods
Comment
CAS-BOT-BC69455
Athyrium filix-femina subsp. cyclosorum
John Thomas Howell
1943-7-4
18258
Marin
Ledum Swamp on road to Pt. Reyes.
Comment
CAS-BOT-BC69749
Selaginella wallacei
John Thomas Howell
1926-9-26
2193
Marin
Near head of Muir Woods.
Comment
CAS-BOT-BC72189
Polystichum dudleyi
John Thomas Howell
1939-5-14
14664
Marin
Between Phoenix Lake and Lake Lagunitas
Comment
CAS-BOT-BC72424
Polystichum munitum
John Thomas Howell
1942-4-19
16938
Marin
Near Big Carson Falls
Comment
CAS-BOT-BC73690
Ulmus procera
John Thomas Howell
1941-6-8
s.n.
Marin
San Rafeal
Comment
CAS-BOT-BC74544
Rorippa curvisiliqua
John Thomas Howell
1946-6-16
22090
Marin
Point Reyes Station.
Comment
CAS-BOT-BC74546
Rorippa curvisiliqua
John Thomas Howell
1946-9-20
s.n.
Marin
East of Aurora School.
Comment
CAS-BOT-BC75035
Sisymbrium altissimum
John Thomas Howell
1947-4-23
23076
Marin
Point Reyes Road west of Ledum Swamp.
Comment
CAS-BOT-BC75820
Berberis pinnata
John Thomas Howell
1926-2-21
1632
Marin
Point Reyes.
Comment
CAS-BOT-BC76854
Polypodium calirhiza
John Thomas Howell
1966-4-6
41459
Marin
Tiburon - John Thomas Howell Botanical Garden
Comment
CAS-BOT-BC79765
Quercus durata
John Thomas Howell
1945-4-17
s.n.
Marin
Windswept Hill above Tiburon
Comment
CAS-BOT-BC81404
Torreya californica
John Thomas Howell
1927-8-22
3034
Marin
s. side of Mt. Tamalpais above Mill Valley
152
Comment
CAS-BOT-BC81406
Torreya californica
John Thomas Howell
1948-5-16
24303
Marin
Near top of Eldridge Grade, Mt. Tamalpais
Comment
CAS-BOT-BC81411
Torreya californica
John Thomas Howell
1948-5-16
24304
Marin
Near top of Eldridge Grade, Mt. Tamalpais
Comment
CAS-BOT-BC84931
Artemisia californica
John Thomas Howell
1936-7-26
12661
Marin
Dillon's Beach
Comment
CAS-BOT-BC84933
Artemisia californica
John Thomas Howell
1946-12-22
23034
Marin
Steep southern slopes, Greenbrae Hills
Comment
CAS-BOT-BC85187
Torreya californica
John Thomas Howell
1967-4-16
42063
Marin
Wooded canyon on Matt Davis Trail just east of Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC85189
Torreya californica
John Thomas Howell
1948-5-16
24303
Marin
Mt. Tamalpais - near top of Eldridge Grade
Comment
CAS-BOT-BC85478
Cupressus sargentii
John Thomas Howell
1927-8-22
3040
Marin
On rocky slope on Rock Spring Trail west of West Point, Mt. Tamalpais
548
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-BC87244
Streptanthus glandulosus subsp. niger
John Thomas Howell
1950-4-16
26308
Marin
Tiburon.
Comment
CAS-BOT-BC87257
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-BC87261
Streptanthus glandulosus subsp. pulchellus
John Thomas Howell
1938-6-19
13922
Marin
Mount Tamalpais. Head of Steep Ravine.
Comment
CAS-BOT-BC87263
Streptanthus glandulosus subsp. pulchellus
John Thomas Howell
1946-5-12
21815
Marin
Carson Country.
Comment
CAS-BOT-BC87276
Streptanthus glandulosus subsp. secundus
John Thomas Howell
1938-7-3
13945
Marin
At head of Lucas Valley.
Comment
CAS-BOT-BC87277
Streptanthus glandulosus subsp. secundus
John Thomas Howell
1943-5-9
17976
Marin
San Rafael Hills.
Comment
CAS-BOT-BC87281
Streptanthus glandulosus subsp. secundus
John Thomas Howell
1942-6-21
s.n.
Marin
Carson Ridge.
Comment
CAS-BOT-BC88480
Thysanocarpus curvipes
John Thomas Howell
1942-4-19
16943
Marin
Big Carson Canyon.
Comment
CAS-BOT-BC89085
Lepidium didymum
John Thomas Howell
1939-11-5
s.n.
Marin
Sausalito.
Comment
CAS-BOT-BC89774
Lepidium latipes
John Thomas Howell
1946-4-18
21654
Marin
Ignacio.
Comment
CAS-BOT-BC91158
Umbellularia californica
John Thomas Howell
1960-2-14
35123
Marin
Lower part of Steep Ravine, Mount Tamalpais.
Comment
CAS-BOT-BC91779
Platystemon californicus
John Thomas Howell
1940-5-20
15497
Marin
Point Reyes.
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-BC94357
Quercus garryana
John Thomas Howell
1945-7-15
21301
Marin
Fairfax Hills near Camp Lilienthal
Comment
CAS-BOT-BC94697
Quercus X howellii
John Thomas Howell
1947-8-31
24176
Marin
Ridgecrest Road above (SW of) Meadows Club
Comment
CAS-BOT-BC94699
Quercus X howellii
John Thomas Howell
1945-9-23
21495
Marin
N side of Fish grade between Phoenix Lake and Lake Lagunitas
Comment
CAS-BOT-BC94700
Quercus X howellii
John Thomas Howell
1946-9-8
s.n.
Marin
on Fish grade between Phoenix Lake and Lake Lagunitas
Comment
CAS-BOT-BC95308
Bowlesia incana
John Thomas Howell
1944-5-14
19465
Marin
Salmon Creek Canyon
Comment
CAS-BOT-BC98064
Symphyotrichum lentum
John Thomas Howell
1925-4-5
953
Marin
Mill Valley
Comment
CAS-BOT-BC98071
Symphyotrichum lentum
John Thomas Howell
1946-9-20
23017
Marin
Laguna in Chileno Valley
Comment
CAS-BOT-BC99132
Symphyotrichum chilense
John Thomas Howell
1933-10-8
11708
Marin
Pt. Reyes Peninsula
Comment
CDA1678
Agrostis avenacea
J. T. Howell
1971-6-2
47649
Marin
On road from San Rafael to McNear s. Bordering San Francisco Bay.
0
Comment
CDA1831
Bromus madritensis
J. T. Howell
1947-4-27
23096
Marin
Bald Mt. west of San Anselmo.
0
Comment
CDA1964
Desmazeria rigida
J. T. Howell
1943-6-13
18225
Marin
Sausalito
Comment
CDA2280
Phalaris aquatica
J. T. Howell
1945-8-12
21381
Marin
Tiburon.
0
Comment
CDA2530
Stenotaphrum secundatum
J. T. Howell
1945-7-2
21330
Marin
West of Mill Valley on road to Muir Woods.
0
Comment
CDA3337
Cypselea humifusa
J. T. Howell
1947-10-19
24184
Marin
0
Comment
CDA3989
Acacia dealbata
J. T. Howell
1943-8-29
19312
Marin
Summit (Avenue) Ridge above Mill Valley.
Comment
CDA5683
Verbena incompta
J. T. Howell
1943-9-5
19323
Marin
San Francisco Bay Region; Southern part of Mill Valley.
Comment
CDA6884
Carduus pycnocephalus
J. T. Howell
1946-5-4
21754
Marin
Along Redwood Highway near Burdell.
0
Comment
CDA7508
Lactuca saligna
J. T. Howell
1943-9-5
19324
Marin
San Francisco Bay Region; Southern part of Mill Valley.
Comment
HSC24634
Cordylanthus mollis
J. T. Howell
1945-7-8
21277
Marin
Burdell Station
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
JEPS20603
Lessingia micradenia var. micradenia
John Thomas Howell
1926-9-9
2191
Marin
Phoenix Lake
Comment
JEPS30761
Desmazeria rigida
John Thomas Howell
1943-6-13
18225
Marin
Sausalito
60
Comment
JEPS30793
Amaranthus deflexus
John Thomas Howell
1944-7-23
19852
Marin
San Rafael
15
Comment
JEPS30811
Rubus discolor
John Thomas Howell
1943-8-29
19311
Marin
Summit (Avenue) Ridge Mill Valley; , Summit (Avenue) Ridge
Comment
JEPS37903
Plantago maritima var. juncoides
John Thomas Howell
1945-7-8
21285
Marin
San Antonio
Comment
JEPS37904
Plantago coronopus
John Thomas Howell
1945-5-6
20815
Marin
San Rafael
Comment
JEPS37906
Plantago elongata
John Thomas Howell
1947-4-30
23109
Marin
Dillons Beach
Comment
JEPS37913
Plantago truncata subsp. firma
John Thomas Howell
1940-5-26
15520 A
Marin
San Anselmo Canyon
Comment
JEPS58876
Lonicera japonica
John Thomas Howell
1947-5-21
23190
Marin
Tiburon
Comment
JEPS58881
Plectritis brachystemon
John Thomas Howell
1947-4-27
23090
Marin
w of San Anselmo (Bald Mountain); Bald Mountain
Comment
JEPS58882
Plectritis brachystemon
John Thomas Howell
1948-5-31
24314
Marin
Nicasio
Comment
JEPS58885
Plectritis brachystemon
John Thomas Howell
1946-6-2
21967
Marin
Mount Tamalpais, Potrero Meadow Potrero Meadow; Mount Tamalpais, Potrero Meadow
Comment
JEPS58887
Galium trifidum var. pacificum
John Thomas Howell
1945-8-5
21366
Marin
near Stinson Beach
Comment
JEPS58888
Galium murale
John Thomas Howell
1947-7-6
23324
Marin
Laurel Dell Mt. Tamalpais
Comment
JEPS58889
Galium parisiense
John Thomas Howell
1942-6-7
16973
Marin
above Fairfax; San Anselmo Canyon
Comment
JEPS58891
Galium aparine
John Thomas Howell
1945-6-3
20942
Marin
near Shell Beach; near Shell Beach
Comment
JEPS58892
Symphoricarpos mollis
John Thomas Howell
1939-6-25
14803
Marin
Summit Avenue Summit Avenue, Mill Valley; Mill Valley
Comment
JEPS58913
Veronica serpyllifolia subsp. humifusa
John Thomas Howell
1947-5-4
23116
Marin
San Rafael
Comment
JEPS58914
Veronica persica
John Thomas Howell
1943-2-20
Marin
Mill Valley
Comment
JEPS58916
Castilleja ambigua subsp. ambigua
John Thomas Howell
1946-5-25
21940
Marin
Greenbrae Marshes
Comment
JEPS58922
Castilleja ambigua subsp. ambigua
John Thomas Howell
1944-4-23
19405
Marin
hills se Kentfield
Comment
JEPS58925
Triphysaria eriantha subsp. eriantha
John Thomas Howell
1946-4-14
21637
Marin
near Laguna School (Chileno Valley); Chileno Valley
Comment
JEPS58927
Triphysaria eriantha subsp. eriantha
John Thomas Howell
1946-4-14
21627
Marin
near Dillons Beach; near Dillons Beach
Comment
JEPS58928
Mimulus microphyllus
John Thomas Howell
1940-5-12
15435
Marin
s end Carson Ridge
Comment
JEPS58929
Mimulus microphyllus
John Thomas Howell
1942-7-12
17019
Marin
Potrero Meadows Mt. Tamalpais
Comment
JEPS58932
Mimulus nasutus
John Thomas Howell
1947-4-27
23092
Marin
w San Anselmo; Bald Mt.
Comment
JEPS58937
Cordylanthus pilosus subsp. pilosus
John Thomas Howell
1942-9-13
17865
Marin
Fairfax
Comment
JEPS58938
Cordylanthus maritimus subsp. palustris
John Thomas Howell
1944-5-28
19518
Marin
salt marsh Almonte
Comment
JEPS58940
Cordylanthus maritimus subsp. palustris
John Thomas Howell
1945-8-19
21430
Marin
salt marsh at head of Drakes Bay
Comment
JEPS58943
Gratiola ebracteata
John Thomas Howell
1945-6-24
Marin
Mt. Tamalpais , Lagunitas Meadows (Lagunitas Meadows)
Comment
JEPS58944
Gratiola ebracteata
John Thomas Howell
1941-6-10
16297
Marin
9 mi w Novato
Comment
JEPS58946
Linaria vulgaris
John Thomas Howell
1946-6-13
22062
Marin
Estero School n of Dillons Beach; Estero School
Comment
JEPS58955
Castilleja wightii
John Thomas Howell
1944-6-4
19536
Marin
Inverness Ridge
Comment
JEPS62610
Castilleja affinis subsp. affinis
John Thomas Howell
1969-5-5
45567
Marin
near Paradise Cove; Tiburon Peninsula
Comment
JEPS62637
Plantago maritima var. juncoides
John Thomas Howell
1957-9-15
32952
Marin
bordering Richardson Bay Richardson Bay
Comment
JEPS86290
Castilleja chrymactis
John Thomas Howell
1947-6-4
23220
Marin
Pt. Reyes Peninsula, near radio station Pt. Reyes Peninsula
Comment
LA206697
Navarretia mellita
John Thomas Howell;
1930-7-20
5378
Marin
near Phoenix Lake
Comment
LA42170
Arctostaphylos glandulosa subsp. cushingiana
John Thomas Howell;
1933-3-19
10868
Marin
Mount Tamalpais, S side of mountain, above Mill Valley
Comment
NY64516
Sequoia sempervirens
J. T. Howell
1957-2-3
32020
Marin
Fern Canyon, Mt. Tamalpais
Comment
POM179706
Cirsium andrewsii
J. T. Howell
1930-6-22
5321
Marin
Valley above Rodeo Lagoon
Comment
POM193914
Cupressus sargentii
J. T. Howell
1927-8-22
3040
Marin
Rock Spring Trail, west of West Point, Mt. Tamalpais
549
Comment
POM196465
Lepechinia calycina
J. T. Howell
1925-4-5
936
Marin
Pipeline Trail.
Comment
POM202457
Arctostaphylos glandulosa subsp. cushingiana
J. T. Howell
1933-3-19
10866 A
Marin
Slopes at head of Muir Woods.
Comment
POM203148
Horkelia marinensis
J. T. Howell
1933-10-8
11703
Marin
Point Reyes Peninsula
Comment
POM203150
Baccharis pilularis
J. T. Howell
1933-10-8
11702
Marin
Point Reyes Peninsula
Comment
POM203455
Grindelia camporum
J. T. Howell
1933-7-30
11462
Marin
San Anselmo.
Comment
POM203913
Melica torreyana
J. T. Howell
1933-4-30
11186
Marin
North side of Mt. Tamalpais.
Comment
POM203968
Vulpia bromoides
J. T. Howell
1933-4-30
11187
Marin
North side of Mt. Tamalpais.
Comment
POM248593
Carex densa
J. T. Howell
1938-5-22
13790
Marin
San Anselmo Canyon.
Comment
POM261290
Cirsium andrewsii
J. T. Howell
1939-6-4
14721
Marin
Point Reyes Lighthouse
Comment
POM261516
Rubus vitifolius
J. T. Howell
1938-5-22
13799
Marin
San Anselmo Canyon.
Comment
POM261522
Rubus vitifolius var. eastwoodianus
J. T. Howell
1938-6-19
13921
Marin
Bootjack. Mt. Tamalpais.
Comment
POM273095
Arctostaphylos virgata
J. T. Howell
1947-1-12
s.n.
Marin
Above Muir Woods, south side of Mt. Tamalpais.
Comment
POM273120
Hesperostipa comata subsp. comata
J. T. Howell
1945-7-22
21330
Marin
Clay slope and flat W of Mill Valley on road to Muir Woods
Comment
POM273123
Pentachaeta bellidiflora
J. T. Howell
1946-5-25
21933
Marin
Greenbrae HillsGreenhorn Mountain Range: North Rim of Kern Canyon.
Comment
POM273149
Pleuropogon californicus var. californicus
J. T. Howell
1945-5-9
20828
Marin
between Hamilton Field and Ignacio, Marin County
Comment
POM273150
Scribneria bolanderi
J. T. Howell
1945-4-29
20791
Marin
Serpentine ridge W of Camp Handy, Mt. Tamalpais
Comment Read comments Mar 26 2010
POM273975
Artemisia californica
J. T. Howell
1946-12-22
23034
Marin
Greenbrea Hills.
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
POM303727
Erechtites minimus
J. T. Howell
1944-7-30
19857
Marin
Almonte.
Comment
POM303728
Acacia dealbata
J. T. Howell
1943-8-29
19312
Marin
Summit ridge above Mill Valley.
152
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
POM304545
Sidalcea hickmanii subsp. viridis
J. T. Howell
1942-6-21
s.n.
Marin
Carson Ridge
Comment
POM356839
Erechtites minimus
J. T. Howell
1944-7-30
19857
Marin
Almonte.
Comment
RSA1036
Ceanothus jepsonii
J. T. Howell
1927-8-22
679
Marin
Rock Spring Trail, Mt Tamalpais
549
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
RSA126189
Salix sitchensis
J. T. Howell
1947-3-23
23047
Marin
Cataract Gulch. Mt. Tamalpais.
Comment
RSA126197
Sagina maxima subsp. crassicaulis
J. T. Howell
1946-5-4
21751
Marin
Dillon's Beach.
Comment
RSA126199
Spergularia salina
J. T. Howell
1944-6-25
19649
Marin
Santa Venetia.
Comment
RSA126240
Rosa californica
J. T. Howell
1939-9-3
15349
Marin
San Antonio Creek
Comment
RSA126396
Brachypodium distachyon
J. T. Howell
1948-5-31
24327
Marin
Devil's Gulch, near Camp Taylor
Comment
RSA126400
Alopecurus saccatus
J. T. Howell
1946-5-4
21702
Marin
East of Aurora School at Sonoma Co. Line, Marine Co.
Comment
RSA126404
Calamagrostis ophitidis
J. T. Howell
1945-5-27
20878 a
Marin
Mount Tamalpais
Comment
RSA126406
Poa howellii
J. T. Howell
1947-4-27
23086
Marin
Bald Mt. west of San Anselmo
Comment
RSA126457
Agrostis blasdalei
J. T. Howell
1947-5-14
23150
Marin
Monterey Series, Drakes Estero, west-northwest of Mt. Vision.
Comment
RSA126458
Agrostis exarata
J. T. Howell
1946-6-13
22048
Marin
East of Aurora School at Sonoma County line.
Comment
RSA126461
Agrostis capillaris
J. T. Howell
1945-6-12
20955
Marin
Near radio station, Pt. Reyes Peninsula.
Comment
RSA126462
Agrostis exarata
J. T. Howell
1943-6-13
18230
Marin
Sausalito hills
Comment
RSA126465
Bromus laevipes
J. T. Howell
1945-6-12
s.n.
Marin
White Hill
Comment
RSA126467
Bromus marginatus
J. T. Howell
1945-5-4
s.n.
Marin
Inverness
Comment
RSA126469
Bromus vulgaris
J. T. Howell
1945-7-4
21268
Marin
California Academy of Sciences; Inverness Ridge
Comment
RSA126477
Poa unilateralis
J. T. Howell
1946-5-26
21953
Marin
Ocean bluff, Point Reyes Lighthouse
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
RSA127051
Chorizanthe cuspidata var. villosa
J. T. Howell
1946-6-9
s.n.
Marin
Abbott's Lagoon
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
RSA127072
Juncus phaeocephalus var. phaeocephalus
J. T. Howell
1945-6-12
20963
Marin
Near radio station, Pt. Reyes Peninsula.
Comment
RSA127116
Grindelia hirsutula var. davyi
J. T. Howell
1946-11-3
23033
Marin
Hamilton Field.
Comment
RSA127202
Festuca occidentalis
J. T. Howell
1943-6-6
18216
Marin
Tenderfoot Trail above Mill Valley.
Comment
RSA127226
Vulpia microstachys var. pauciflora
J. T. Howell
1946-5-14
21839
Marin
Between Barths Retreat and Potrero Meadow, Mt. Tamalpais.
Comment
RSA127230
Elymus glaucus subsp. virescens
J. T. Howell
1947-5-14
23161
Marin
McClure Beach
Comment
RSA127233
Elymus X gouldii
J. T. Howell
1946-6-30
22143
Marin
Rodeo Lagoon
Comment
RSA127234
Elymus glaucus
J. T. Howell
1942-6-21
s.n.
Marin
Carson Ridge
Comment
RSA127236
Vulpia microstachys var. pauciflora
J. T. Howell
1946-5-14
21838
Marin
Between Barths Retreat and Potrero Meadow, Mt. Tamalpais.
Comment
RSA127242
Rhynchospora californica
J. T. Howell
1945-8-19
s.n.
Marin
Near Ledum Swamp, Point Reyes Peninsula
Comment
RSA127245
Polypogon monspeliensis
J. T. Howell
1939-7-2
s.n.
Marin
Pirates Cove.
Comment
RSA127254
Equisetum arvense
J. T. Howell
1941-6-29
16338
Marin
Between Rock Spring and Laurel Dell, Mt. Tamalpais.
Comment
RSA127266
Melica torreyana
J. T. Howell
1942-6-21
s.n.
Marin
Carson Ridge
Comment
RSA127273
Hordeum depressum
J. T. Howell
1947-4-13
23057
Marin
Tiburon Peninsula
Comment
RSA127274
Hordeum marinum subsp. gussoneanum
J. T. Howell
1940-5-26
15526
Marin
Little Carson Falls
Comment
RSA127276
Trisetum canescens
J. T. Howell
1943-6-10
s.n.
Marin
Barth's [?] Retreat, Mt. Tamalpais.
Comment
RSA127366
Claytonia exigua subsp. exigua
J. T. Howell
1939-4-23
14615
Marin
Corte Madera Ridge, Mt. Tamalpais.
Comment
RSA127376
Ribes victoris
J. T. Howell
1941-6-8
s.n.
Marin
NE of San Rafael
Comment
RSA127381
Festuca idahoensis
J. T. Howell
1941-5-25
16208
Marin
Rifle camp, Mt. Tamalpais.
Comment
RSA127382
Nassella lepida
J. T. Howell
1943-5-9
17956 -A
Marin
Black Canyon, San Rafael Hills
Comment
RSA127385
Spartina foliosa
J. T. Howell
1945-8-14
21413
Marin
Burdell Marshes
Comment
RSA127391
Elymus multisetus
J. T. Howell
1941-5-25
16239
Marin
Near Bootjack, Mt. Tamalpais
Comment
RSA128314
Sagina decumbens subsp. occidentalis
J. T. Howell
1946-4-21
21689
Marin
Dunes near radio station, Pt. Reyes Peninsula
Comment
RSA128316
Lupinus arboreus var. arboreus
J. T. Howell
1946-6-9
22014 A
Marin
Pierce Ranch, north of Point Reyes Peninsula.
Comment
RSA128337
Alopecurus aequalis var. sonomensis
J. T. Howell
1952-7-3
28322
Marin
near the radio station, Pt. Reyes Peninsula.
Comment
RSA128528
Lessingia hololeuca
John T. Howell
1946-9-8
s.n.
Marin
Near Ignacio
Comment
RSA128928
Aster chilensis
J. T. Howell
1947-5-18
23179
Marin
South end of Carson Ridge
Comment
RSA128938
Trifolium variegatum
J. T. Howell
1945-5-9
20825
Marin
between Hamilton Field and Ignacio.
Comment
RSA128946
Corethrogyne filaginifolia var. californica
J. T. Howell
1939-6-18
14767
Marin
Near Mud Lake
Comment
RSA146
Lithocarpus densiflorus var. densiflorus
J. T. Howell
1927-8-22
674
Marin
Mt. Tamalpais, south side.
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
RSA201418
Calamagrostis ophitidis
J. T. Howell
1966-5-25
s.n.
Marin
Just north of John Thomas Howell Botanical Garden, Tiburon
Comment
RSA201436
Eryngium aristulatum var. aristulatum
J. T. Howell
1946-9-20
23026
Marin
Sonoma County line east of Aurora School
Comment
RSA201453
Phacelia californica
J. T. Howell
1947-6-18
23252
Marin
Salmon Creek - Chileno Valley summit.
Comment
RSA201454
Sequoia sempervirens
J. T. Howell
1957-2-3
32020
Marin
Fern Canyon, Mt. Tamalpais
Comment
RSA201495
Phacelia suaveolens subsp. suaveolens
J. T. Howell
1946-5-14
21842
Marin
Potrero Meadow, Mt. Tamalpais.
Comment
RSA216194
Brachypodium distachyon
J. T. Howell
1966-6-9
41563
Marin
Chert outcrop, just north of 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
RSA26238
Rubus ursinus
J. T. Howell
1938-5-22
13799
Marin
San Anselmo Canyon.
Comment
RSA26239
Rubus vitifolius
J. T. Howell
1938-6-5
13893
Marin
Near Fern Canyon. Mt. Tamalpais.
Comment
RSA299143
Monardella undulata
J. T. Howell, C. Best, W. Follette, G. True
1980-6-19
53725
Marin
Near Abbotts Lagoon, Point Reyes Peninsula.
Comment
RSA31366
Boisduvalia stricta
J. T. Howell
1942-6-12
16984
Marin
Carson Ridge
Comment
RSA31367
Boisduvalia densiflora var. densiflora
J. T. Howell
1944-6-25
19654
Marin
Santa Venetia.
Comment
RSA31382
Epilobium ciliatum subsp. ciliatum
J. T. Howell
1939-7-2
14822
Marin
Elk Valley
Comment
RSA31410
Oenothera elata subsp. hookeri
J. T. Howell
1946-9-20
23027
Marin
Sonoma County line east of Aurora School
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
RSA32491
Umbellularia californica
J. T. Howell
1947-3-2
23043
Marin
Above Phoenix Lake, Mt. Tamalpais.
Comment
RSA35289
Ceanothus jepsonii
J. T. Howell
1940-5-12
15434
Marin
Mt. Tamalpais.
Comment
RSA35304
Carex ovalis
J. T. Howell
1944-6-4
19567
Marin
Mt. Vision west of Inverness
Comment
RSA383649
Ruppia maritima
J. T. Howell
1933-7-30
11469
Marin
Head of Tomales Bay
Comment
RSA40160
Lotus uliginosus
J. T. Howell
1944-7-30
19856
Marin
Between Mill Valley and head of salt marshes.
3
Comment
RSA40161
Spergularia maritima
J. T. Howell
1944-4-23
19397
Marin
Escalle Salt marsh.
Comment
RSA414924
Acacia dealbata
J. T. Howell
1943-8-29
19312
Marin
Summit ridge above Mill Valley.
152
Comment
RSA43327
Torreya californica
J. T. Howell
1948-5-16
24303
Marin
Near top of Eldridge Grade, Mount Tamalpais
Comment
RSA44352
Lathyrus littoralis
J. T. Howell
1946-4-21
21688
Marin
Dunes near radio station, Pt. Reyes Peninsula
Comment
RSA44353
Lathyrus jepsonii subsp. californicus
J. T. Howell
1947-5-18
23174
Marin
Fairfax Hills.
Comment
RSA44355
Lathyrus vestitus subsp. bolanderi
J. T. Howell
1944-4-2
19366
Marin
Bolinas Ridge
Comment
RSA46392
Arctostaphylos nummularia var. sensitiva
J. T. Howell
1947-1-12
s.n.
Marin
Above Muir Woods, south side of Mt. Tamalpais.
Comment
RSA46396
Lithocarpus densiflorus var. densiflorus
J. T. Howell
1947-1-12
s.n.
Marin
Above Muir Woods, south side of Mt. Tamalpais.
Comment
RSA51267
Arctostaphylos glandulosa subsp. glandulosa
J. T. Howell
1950-4-2
26307
Marin
Inverness Ridge east of Mt. Vision, Pt. Reyes Peninsula.
Comment
RSA51442
Melica geyeri
J. T. Howell
1947-5-18
23185
Marin
Lagunitas Meadows.
Comment
RSA51446
Calamagrostis ophitidis
J. T. Howell
1947-5-18
s.n.
Marin
South end of Carson 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
RSA52104
Carex obnupta
J. T. Howell
1946-5-4
s.n.
Marin
East of Aurora at Sonoma County Line.
Comment
RSA52111
Carex densa
J. T. Howell
1943-5-2
17935
Marin
Big Carson Canyon.
Comment
RSA52173
Carex tumulicola
J. T. Howell
1944-4-13
19370
Marin
Big Rock Ridge west of Hamilton Field.
Comment
RSA52333
Carex obnupta
J. T. Howell
1946-7-4
s.n.
Marin
Dillon's Beach.
Comment
RSA53844
Scribneria bolanderi
J. T. Howell
1945-4-29
20791
Marin
Serpentine ridge W of Camp Handy, Mt. Tamalpais
Comment Read comments Mar 26 2010
RSA550627
Carex globosa
J. T. Howell
1944-4-2
19368 A
Marin
Southeast of Laurel Del, Mount Tamalpais
Comment Read comments May 31 2010
RSA66706
Streptanthus batrachopus
J. T. Howell
1946-6-23
22122
Marin
Carson Ridge
Comment
RSA70837
Arctostaphylos hookeri subsp. montana
J. T. Howell
1926-2-28
1655
Marin
Mt. Tamalpais on south side.
Comment
RSA78557
Carex leptalea
J. T. Howell
1943-7-4
18254
Marin
Ledum Swamp on road to Point Reyes, Point Reyes Peninsula.
Comment
RSA78560
Carex echinata subsp. phyllomanica
J. T. Howell
1943-7-4
18255
Marin
Ledum Swamp on road to Point Reyes, Point Reyes Peninsula.
Comment
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
RSA88783
Carex gynodynama
J. T. Howell, J. W. Stacey
1936-6-7
12640
Marin
Ledum Swamp on road to Point Reyes.
Comment
SBBG27393
Rubus ursinus
J. T. Howell
1938-6-19
Marin
Bootjack, Mt Tamalpais
Comment
SBBG27539
Ribes victoris
J. T. Howell
1942-7-12
Marin
above Lake Lagunitas, Northside Trail, Mt Tamalpais
Comment
SBBG27977
Lessingia hololeuca
J. T. Howell
1945-9-16
Marin
N of San Rafael and E of Santa Venetia
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
SBBG29936
Atriplex semibaccata
J. T. Howell
1943-11-21
19338
Marin
W of San Quentin near Greenbrae
Comment
SBBG39551
Sequoia sempervirens
J. T. Howell
1957-2-3
Marin
Fern Cyn, Mt Tamalpais
Comment
SBBG41054
Lomatium utriculatum
J. T. Howell
1947-5-8
23145
Marin
Sausalito
Comment
SBBG41056
Calystegia occidentalis subsp. occidentalis
J. T. Howell
1947-5-8
23137
Marin
Sausalito
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
SBBG47374
Gilia capitata subsp. capitata
J. T. Howell
1972-6-18
Marin
near Ring Hill, Tiburon Peninsula
167
Comment
SBBG54421
Anthoxanthum aristatum
J. T. Howell
1945-5-9
20856
Marin
between Hamilton Field and Ignacio
Comment
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
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
SD71392
Amsinckia intermedia
John Thomas Howell
1933-4-30
11199
Marin
Phoenix Lake
Comment
SEINET195361
Pleuropogon californicus
J. T. Howell
1945-5-9
20828
Marin
Between Hamilton Field and Ignacio.
Comment
SEINET195364
Papaver californicum
John Thomas Howell
1946-5-30
21962
Marin
Little Carson Canyon.
Comment
SEINET196569
Hordeum murinum subsp. leporinum
J. T. Howell
1949-4-24
25307
Marin
Fort McDowell Angel Island
Comment
SEINET199894
Bromus carinatus var. carinatus
John Thomas Howell
1943-5-15
18099
Marin
Tiburon Peninsula
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
SEINET199906
Deschampsia elongata
J. T. Howell
1942-6-21
16982
Marin
Carson Ridge
Comment
SEINET199908
Calamagrostis rubescens
John Thomas Howell
1949-6-26
25352 A
Marin
Fire trail north of East Peak. Mt. Tamalpais.
Comment
SEINET199917
Glyceria leptostachya
J. T. Howell
1943-6-6
18198
Marin
Between Mill Valley and Muir Woods
Comment
SEINET199930
Elymus glaucus subsp. glaucus
J. T. Howell
1943-6-6
18209
Marin
Camp below Muir Woods
Comment
SEINET199937
Dichanthelium acuminatum subsp. fasciculatum
John Thomas Howell
1941-6-29
16340
Marin
Between rock Srping and Laurel Dell. Mt. Tamalpais
Comment
SEINET208611
Plantago coronopus
John Thomas Howell
1945-5-6
20815
Marin
Edge of salt marsh, San Rafael.
Comment
SEINET208612
Sequoia sempervirens
John Thomas Howell
1957-2-3
32020
Marin
Fern Canyon Mt.Tamalpais.
Comment
SEINET236413
Poa douglasii
John Thomas Howell
1946-4-21
21687
Marin
Near the radio station Pt. Reyes Peninsula.
Comment
SEINET4675796
Cordylanthus maritimus
John Thomas Howell
1933-1
Marin
Comment
SEINET7893532
Cypselea humifusa
John Thomas Howell
1947-1
24184
Marin
Alpine Lake
Comment
UC1008727
Navarretia viscidula
John Thomas Howell
1944-7-7
19682
Marin
Lagunitas Meadows
Comment
UC1008729
Navarretia intertexta subsp. intertexta
John Thomas Howell
1942-7-12
17030
Marin
Potrero Meadows Mt. Tamalpais
Comment
UC1023052
Navarretia intertexta
John Thomas Howell
1941-7-6
16351
Marin
Kent Trail Mt. Tamalpais
Comment
UC1100001
Najas guadalupensis
John Thomas Howell
1946-9-29
23030
Marin
Stinson Beach
Comment
UC1106071
Ranunculus flammula
John Thomas Howell
1946-6-20
22103
Marin
four mi n Bolinas (on Olema Rd)
Comment
UC1106072
Claytonia exigua subsp. exigua
John Thomas Howell
1940-5-12
15432
Marin
s end Carson Ridge
Comment
UC1106075
Isolepis carinata
John Thomas Howell
1943-5-22
18154
Marin
Lagunitas Meadows , Lagunitas Meadows (Mt. Tamalpais)
Comment
UC1106077
Schoenoplectus acutus var. occidentalis
John Thomas Howell
1945-8-5
21367
Marin
Stinson Beach
Comment
UC1106079
Scirpus americanus
John Thomas Howell
1944-9-10
20724
Marin
marshes n Olema; n of Olema
Comment
UC1106083
Eleocharis suksdorfiana
John Thomas Howell
1947-6-4
23210
Marin
swale near Radio Station Point Reyes Peninsula ([in another hand on sheet]: On sea bluffs between Drakes Estero and Pacific Ocean)
Comment
UC1106086
Eleocharis macrostachya
John Thomas Howell
1939-5-14
Marin
Phoenix Lake Mount Tamalpais
Comment
UC1106093
Festuca rubra
John Thomas Howell
1943-6-8
18220
Marin
Tiburon
Comment
UC1106094
Festuca roemeri
John Thomas Howell
1943-5-15
18084
Marin
Tiburon Peninsula
Comment
UC1106096
Festuca californica
John Thomas Howell
1945-6-12
20952
Marin
Point Reyes Peninsula, near radio station Point Reyes Peninsula
Comment
UC1106100
Nassella pulchra
John Thomas Howell
1946-5-16
21849
Marin
se side Angel Island
Comment
UC1106110
Leymus mollis subsp. mollis
John Thomas Howell
1945-6-30
21250
Marin
Stinson Beach
Comment
UC1106121
Elymus californicus
John Thomas Howell
1941-7-6
16356
Marin
Mount Tamalpais, Kent Trail Mount Tamalpais; , Kent Trail
Comment
UC1106122
Trisetum canescens
John Thomas Howell
1949-5-15
25313
Marin
w of Inverness; Mt. Tamalpais
Comment Read comments Feb 24 2012
UC1106125
Nassella cernua
John Thomas Howell
1945-4-29
20796
Marin
Fairfax Hills
Comment
UC1106127
Hordeum brachyantherum subsp. californicum
John Thomas Howell
1948-5-31
24328
Marin
near Camp Taylor (Devils Gulch)
Comment
UC1106128
Hordeum brachyantherum subsp. brachyantherum
John Thomas Howell
1944-5-28
Marin
Mill Valley
Comment
UC1106129
Hordeum marinum subsp. gussoneanum
John Thomas Howell
1946-4-14
Marin
Chileno Valley
Comment
UC1106131
Hordeum depressum
John Thomas Howell
1944-5-28
Marin
Almonte
Comment
UC1106132
Hordeum vulgare
John Thomas Howell
1945-6-3
20918
Marin
near Inverness
Comment
UC1106137
Melica californica
John Thomas Howell
1941-5-25
16214
Marin
Mt. Tamalpais; Rifle Camp
Comment
UC1106138
Melica harfordii
John Thomas Howell
1941-5-25
16204
Marin
Mt. Tamalpais; Arturo Trail
Comment
UC1106139
Melica geyeri
John Thomas Howell
1947-5-25
23195
Marin
Mt. Tamalpais; Bernstein Trail, near the Mt. Theatre
Comment
UC1106140
Melica geyeri
John Thomas Howell
1943-4-11
17906
Marin
Black Canyon; San Rafael Hills
Comment
UC1106143
Atriplex patula
John Thomas Howell
1945-8-12
21380
Marin
Tiburon
Comment
UC1106144
Atriplex californica
John Thomas Howell
1944-9-10
20734
Marin
n Inverness (Shell Beach); n of Inverness, Shell Beach
Comment
UC1106146
Cypselea humifusa
John Thomas Howell
1939-8-27
15327
Marin
Lake Lagunitas
Comment
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
UC1106186
Lasthenia glaberrima
John Thomas Howell
1945-5-9
20827
Marin
between Hamilton Field and Ignacio
Comment
UC1106190
Microseris bigelovii
John Thomas Howell
1946-5-19
21910
Marin
Meadows Club, Fairfax hills Fairfax
Comment
UC1106193
Polygonum aviculare subsp. aviculare
John Thomas Howell
1945-7-15
21291
Marin
Fairfax
Comment
UC1106194
Polygonum marinense
John Thomas Howell
1945-7-8
21282
Marin
Burdell; salt marshes
Comment
UC1106196
Microseris paludosa
John Thomas Howell
1944-5-14
19457
Marin
hills near Salmon Creek School
Comment
UC1106207
Bromus madritensis subsp. madritensis
John Thomas Howell
1944-4-16
19390
Marin
Mount Tamalpais, Corte Madera Ridge Corte Madera Ridge; Mount Tamalpais, Corte Madera Ridge
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
UC1106211
Agrostis capillaris
John Thomas Howell
1945-6-12
20955
Marin
near radio station; Point Reyes Peninsula
Comment
UC1106212
Agrostis microphylla
John Thomas Howell
1946-6-9
22007
Marin
n Abbotts Lagoon
Comment
UC1106215
Agrostis densiflora
John Thomas Howell
1947-9-6
24180
Marin
Dillons Beach
Comment
UC1106241
Trifolium barbigerum
John Thomas Howell
1946-4-14
21620
Marin
near Tomales
0
Comment
UC1106242
Trifolium oliganthum
John Thomas Howell
1947-4-27
23080
Marin
w San Anselmo; Bald Mtn
Comment
UC1106245
Trifolium dubium
John Thomas Howell
1946-5-26
21949
Marin
Inverness
Comment
UC1106248
Trifolium oliganthum
John Thomas Howell
1947-5-4
23130
Marin
San Rafael Hills
Comment
UC1106249
Trifolium albopurpureum var. dichotomum
John Thomas Howell
1943-5-2
17934
Marin
Big Carson Canyon
Comment
UC1106250
Trifolium variegatum var. melananthum
John Thomas Howell
1945-5-9
20332
Marin
between Hamilton Field and Ignacio
Comment
UC1106253
Medicago polymorpha
John Thomas Howell
1947-7-6
Marin
Laurel Dell Mt. Tamalpais
Comment
UC1106254
Astragalus gambelianus
John Thomas Howell
1942-4-12
16942
Marin
Big Carson Canyon near Warm Springs; Big Carson Canyon near Warm Springs
Comment
UC1106256
Cardamine oligosperma
John Thomas Howell
1939-5-28
Marin
road to Inverness (near head Drake's Bay); near head Drake's Bay
Comment
UC1106260
Streptanthus batrachopus
John Thomas Howell
1941-7-6
16348
Marin
between Camp Zeische and Barth's Retreat; Mt. Tamalpais
Comment
UC1106263
Pentachaeta alsinoides
John Thomas Howell
1946-5-16
21865
Marin
se side Angel Island
Comment
UC1106264
Pentachaeta alsinoides
John Thomas Howell
1947-5-4
23118
Marin
San Rafael Hills
Comment
UC1106266
Agoseris heterophylla var. heterophylla
J. Thomas Howell
1947-5-4
23125
Marin
San Rafael Hills
Comment
UC1106270
Taraxacum officinale
John Thomas Howell
1947-5-30
23207
Marin
Ross
Comment
UC1106273
Micropus californicus var. californicus
John Thomas Howell
1947-5-4
23134
Marin
San Rafael Hills
Comment
UC1106274
Gnaphalium palustre
John Thomas Howell
1946-9-20
23024
Marin
e of Aurora School (Marin-Sonoma County line)
Comment
UC1106276
Hemizonia congesta subsp. lutescens
John Thomas Howell
1940-6-9
Marin
Tiburon
Comment
UC1106281
Potamogeton foliosus
John Thomas Howell
1946-8-23
22893
Marin
Pierce Point Road; Point Reyes Peninsula
Comment
UC1106282
Zannichellia palustris
John Thomas Howell
1947-4-30
23113
Marin
near Dillons Beach; near Dillons Beach
Comment
UC1106291
Juncus phaeocephalus
John Thomas Howell
1939-10-1
15362
Marin
Lake Lagunitas
Comment
UC1106292
Juncus phaeocephalus var. phaeocephalus
John Thomas Howell
1945-9-13
21464
Marin
Pt. Reyes Peninsula, near radio station Pt. Reyes Peninsula
Comment
UC1106297
Maianthemum dilatatum
John Thomas Howell
1946-5-5
21757
Marin
swale near radio station Pt. Reyes Peninsula
Comment
UC1106302
Sagina decumbens subsp. occidentalis
John Thomas Howell
1944-7-9
19700
Marin
Inverness Ridge
Comment
UC1106307
Stellaria nitens
John Thomas Howell
1982-4-27
23084
Marin
w of San Anselmo (Bald Mt); Bald Mt.
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
UC1106315
Phalaris lemmonii
John Thomas Howell
1944-5-7
19426
Marin
Greenbrae
Comment
UC1176730
Ribes victoris
John Thomas Howell
1941-6-8
16256
Marin
hills ne San Rafael
Comment
UC1176733
Heuchera pilosissima
John Thomas Howell
1949-6-7
25346
Marin
Dillons Beach
Comment
UC1176734
Ribes menziesii
John Thomas Howell
1950-10-11
27469
Marin
Bear Valley
Comment
UC1176736
Whipplea modesta
John Thomas Howell
1947-5-4
23131
Marin
San Rafael Hills
Comment
UC1176742
Aquilegia eximia
John Thomas Howell
1944-7-7
19681
Marin
Camp Handy Mt. Tamalpais
Comment
UC1176747
Ranunculus pusillus
John Thomas Howell
1946-6-16
22082
Marin
Olema Marshes
Comment
UC1176748
Ranunculus pusillus
John Thomas Howell
1946-4-18
21641
Marin
Ignacio
Comment
UC1176750
Ranunculus orthorhynchus var. bloomeri
John Thomas Howell
1948-5-31
24320
Marin
Nicasio
Comment
UC1176753
Delphinium
John Thomas Howell
1945-5-20
20869
Marin
Tiburon
Comment
UC1176756
Hesperocnide tenella
John Thomas Howell
1945-6-30
Marin
Mt. Tamalpais
Comment
UC1176764
Phoradendron villosum
John Thomas Howell
1940-1-14
Marin
Mt. Tamalpais, Lake Lagunitas
Comment
UC1176773
Aristolochia californica
John Thomas Howell
1945-5-13
20864
Marin
Deer Park near Fairfax
Comment
UC1176774
Calandrinia ciliata
John Thomas Howell
1940-5-20
15503
Marin
Pt. Reyes
Comment
UC1176781
Alnus rubra
John Thomas Howell
1940-5-20
15485
Marin
Inverness
Comment
UC1176782
Amaranthus watsonii
John Thomas Howell
1945-9-16
21473
Marin
near San Rafael
Comment
UC1176785
Amaranthus retroflexus
John Thomas Howell
1945-9-16
1475
Marin
near San Rafael
Comment
UC1176787
Amaranthus blitoides
John Thomas Howell
1939-9-3
15339
Marin
near Novato
Comment
UC1176788
Amaranthus californicus
John Thomas Howell
1947-10-10
24188
Marin
Alpine Lake
Comment
UC1176789
Scirpus pungens
John Thomas Howell
1945-5-20
20872
Marin
Tiburon
Comment
UC1176791
Scirpus microcarpus
John Thomas Howell
1946-7-7
Marin
Potrero Meadow Mt. Tamalpais, Potrero Meadow
Comment
UC1176792
Bolboschoenus maritimus
John Thomas Howell
1945-9-16
21493
Marin
Near San Rafael.
Comment
UC1176795
Chenopodium californicum
John Thomas Howell
1947-5-14
23166
Marin
McClure Beach
Comment
UC1176797
Chenopodium ambrosioides
John Thomas Howell
1945-5-9
Marin
Ignacio
Comment
UC1176798
Chenopodium murale
John Thomas Howell
1939-9-3
Marin
Corte Madera
Comment
UC1176799
Salix lasiolepis
John Thomas Howell
1939-9-3
Marin
Ignatio
Comment
UC1176800
Salix laevigata
John Thomas Howell
1939-9-3
Marin
San Antonio Creek
Comment
UC1176803
Salix sitchensis
John Thomas Howell
1943-7-4
18263
Marin
Ledum Swamp on rd. to Pt. Reyes; Ledum Swamp
Comment Read comments Dec 6 2007
UC1176804
Atriplex semibaccata
John Thomas Howell
1944-6-25
19667
Marin
between McNear's Landing and San Rafael; between McNear's Landing and San Rafael
Comment
UC1176806
Chenopodium ambrosioides var. suffruticosum
John Thomas Howell
1940-9-15
Marin
Stinson Beach
Comment
UC1176810
Rumex salicifolius var. salicifolius
John Thomas Howell
1946-6-30
22138
Marin
Rodeo Lagoon
Comment
UC1176813
Salix exigua var. hindsiana
John Thomas Howell
1945-5-9
20841
Marin
Ignacio
Comment
UC1176858
Typha latifolia
John Thomas Howell
1958-6-28
33639
Marin
Willow Meadow Mt. Tamalpais; , Willow Meadow
Comment
UC1176878
Hypochaeris glabra
John Thomas Howell
1948-6-6
24333
Marin
Bolinas
Comment
UC1176880
Xanthium strumarium
John Thomas Howell
1946-9-8
Marin
near Ignacio
Comment
UC1176890
Eriophyllum lanatum var. arachnoideum
John Thomas Howell
1939-5-28
7395
Marin
Pt. Reyes Lighthouse
Comment
UC1176901
Achillea millefolium
J. Thomas Howell
1947-5-14
23163
Marin
MaClure Beach
Comment
UC1176902
Wyethia angustifolia
John Thomas Howell
1946-6-2
21970
Marin
Mt. Tamalpais , Potrero Meadow (Potrero Meaodw)
Comment
UC1176905
Chorizanthe cuspidata
John Thomas Howell
1946-7-4
22176
Marin
Dillons Beach
Comment
UC1176908
Chorizanthe cuspidata var. villosa
John Thomas Howell
1945-6-12
Marin
Pt. Reyes
Comment
UC1176909
Eriogonum luteolum var. caninum
John Thomas Howell
1945-9-2
Marin
Black Canyon San rafael Hills
Comment
UC1176911
Eriogonum latifolium
John Thomas Howell
1939-7-2
14825
Marin
ridge between Tennessee Cove and Pirates Cove
Comment
UC1176912
Eriogonum nudum var. auriculatum
John Thomas Howell
1939-7-2
14841
Marin
between Big Lagoon and Muir Woods
Comment
UC1176918
Microseris paludosa
John Thomas Howell
1944-5-27
19501
Marin
Summit Ave Mt. Tamalpais (Mt. Tamalpais)
Comment
UC1176919
Uropappus lindleyi
John Thomas Howell
1945-5-6
20802
Marin
SAn Rafael Hills
Comment
UC1176920
Stebbinsoseris heterocarpa
John Thomas Howell
1946-5-12
Marin
Fairfax Country Club
Comment
UC1176923
Eriophyllum confertiflorum var. confertiflorum
John Thomas Howell
1950-6-11
26628
Marin
Throckmorton Ridge Mt. Tamalpais, Throckmorton 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
UC1177009
Bromus tectorum
John Thomas Howell
1943-5-9
17940
Marin
San Rafael
Comment
UC1177011
Bromus diandrus
John Thomas Howell
1949-6-7
25343
Marin
Aurora School, northern Marin County Aurora School
Comment
UC1177012
Bromus racemosus
John Thomas Howell
1945-5-27
20885
Marin
ne of Mountain Theater (Mount Tamalpais); Mount Tamalpais
Comment
UC1177015
Bromus carinatus var. carinatus
John Thomas Howell
1946-5-4
21748
Marin
Dillons Beach
Comment
UC1177017
Bromus secalinus
John Thomas Howell
1945-6-24
21245
Marin
Mount Tamalpais, Lagunitas Meadows Lagunitas Meadows; Mount Tamalpais, Lagunitas Meadows
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
UC1177020
Bromus carinatus var. carinatus
John Thomas Howell
1943-6-6
18201
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
UC1177026
Agrostis exarata
John Thomas Howell
1945-7-4
21271
Marin
Inverness Ridge
Comment
UC1177030
Agrostis densiflora
John Thomas Howell
1946-6-30
22146
Marin
Rodeo Lagoon
Comment
UC1177034
Agrostis exarata
John Thomas Howell
1943-7-4
18250
Marin
on road to Point Reyes; Ledum Swamp
Comment
UC1177041
Agrostis alba
John Thomas Howell
1943-7-3
18244
Marin
Sausalito
Comment
UC1177070
Scribneria bolanderi
John Thomas Howell
1952-5-30
28317
Marin
along fire road between Mountain theater and Potrero Meadow (Mount Tamalpais); Mount Tamalpais
Comment
UC1177105
Leymus pacificus
John Thomas Howell
1948-6-6
24335
Marin
Stinson Beach
Comment
UC1177108
Deschampsia cespitosa subsp. holciformis
John Thomas Howell
1946-6-30
22153
Marin
Rodeo Lagoon
Comment
UC1177111
Deschampsia elongata
John Thomas Howell
1943-5-22
Marin
Deer Park near Fairfax
Comment
UC1177115
Cynosurus echinatus
John Thomas Howell
1943-5-22
18157
Marin
Lagunitas Meadows Mt. Tamalpais; , Lagunitas Meadows
Comment
UC1177118
Poa unilateralis
John Thomas Howell
1939-6-4
Marin
Pt Reyes Lighthouse
Comment
UC1177120
Poa secunda subsp. secunda
John Thomas Howell
1943-5-2
17931
Marin
Big Carson Canyon
Comment
UC1177123
Poa douglasii
John Thomas Howell
1946-5-4
21741
Marin
Dillon's Beach
Comment
UC1177124
Calamagrostis rubescens
John Thomas Howell
1944-6-26
25352 A
Marin
Firetrail n East Peak; Mt. Tamalpais
Comment
UC1177126
Calamagrostis ophitidis
John Thomas Howell
1940-5-15
18070
Marin
Tiburon Peninsula
Comment
UC1177174
Lotus grandiflorus
John Thomas Howell
1944-4-2
19363
Marin
Bolinas Ridge
Comment
UC1177182
Lupinus arboreus var. eximius
John Thomas Howell
1939-5-28
7385
Marin
Pt. Reyes lighthouse
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
UC1177195
Trifolium hybridum
John Thomas Howell
1945-7-29
21347
Marin
Bolinsa
Comment
UC1177198
Lotus uliginosus
John Thomas Howell
1944-5-28
19525
Marin
between Almonte and Mill Valley
Comment
UC1177199
Trifolium wormskioldii
John Thomas Howell
1940-5-20
15505
Marin
Point Reyes
Comment
UC1177200
Trifolium obtusiflorum
John Thomas Howell
1942-6-7
16972
Marin
above Fairfax (San Anselmo Canyon)
Comment
UC1177203
Trifolium fucatum
John Thomas Howell
1944-5-14
19473
Marin
between Salmon Creek and Chileno Valley
Comment
UC1177204
Trifolium depauperatum var. amplectens
John Thomas Howell
1946-4-18
21646
Marin
Ignacio
Comment
UC1177206
Trifolium albopurpureum var. dichotomum
John Thomas Howell
1947-4-27
23104
Marin
w side San Anselmo (type region); Bald Mtn
Comment
UC1177210
Astragalus nuttallii var. virgatus
John Thomas Howell
1946-5-16
21868
Marin
Angel Island
Comment
UC1177213
Lupinus formosus
John Thomas Howell
1946-6-13
22064
Marin
Estero Americano
Comment
UC1177214
Lupinus formosus
John Thomas Howell
1944-7-9
19688
Marin
Inverness Ridge
Comment
UC1177216
Lupinus formosus
John Thomas Howell
1943-6-6
18211
Marin
canyon just below Muir Woods; canyon just below Muir Woods
Comment
UC1177221
Vicia gigantea
John Thomas Howell
1947-4-13
Marin
Tiburon
Comment Read comments Mar 26 2009
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
UC1177231
Hoita macrostachya
John Thomas Howell
1944-9-3
20716
Marin
near Bootjack; Mt. Tamalpais
Comment
UC1177235
Astragalus nuttallii var. virgatus
John Thomas Howell
1947-5-14
23159
Marin
McClure Beach
Comment
UC1177237
Amelanchier utahensis
John Thomas Howell
1941-6-29
16328
Marin
Rock Spring; Mt. Tamalpais
Comment
UC1177238
Sanguisorba minor subsp. muricata
John Thomas Howell
1949-6-7
25341
Marin
Aurora School; nw Marin Co.
Comment
UC1177239
Amelanchier utahensis
John Thomas Howell
1940-5-12
15419
Marin
Lagunitas Creek
Comment Read comments Jun 24 2011
UC1177240
Heteromeles arbutifolia
John Thomas Howell
1949-4-6
25300
Marin
Black Point
Comment
UC1177244
Oemleria cerasiformis
John Thomas Howell
1946-6-16
22078
Marin
Olema Marshes
Comment
UC1177251
Erysimum concinnum
John Thomas Howell
1939-5-28
7379
Marin
Pt. Reyes lighthouse
Comment
UC1177252
Lepidium lasiocarpum var. lasiocarpum
John Thomas Howell
1947-6-18
23277
Marin
Dillons Beach
Comment
UC1177257
Hirschfeldia incana
John Thomas Howell
1942-6-21
17002
Marin
Fairfax
Comment
UC1177258
Cardaria draba
John Thomas Howell
1945-9-16
21487
Marin
n of San Rafael
Comment
UC1177262
Solidago elongata
John Thomas Howell
1945-8-19
21426
Marin
near Ledum Swamp (Point Reyes Peninsula); Point Reyes Peninsula
Comment
UC1177268
Eurybia radulina
J. Thomas Howell
1946-9-15
23003
Marin
near, (Mt. Tamalpais) Potrero Meadows; Mt. Tamalpais
Comment
UC1177271
Heterotheca sessiliflora subsp. bolanderi
John Thomas Howell
1939-7-2
14831
Marin
ridge between Tennessee Cove and Pirates Cove
Comment
UC1177272
Heterotheca oregona var. oregona
John Thomas Howell
1943-9-5
19319
Marin
s of Mill Valley (along railroad)
Comment
UC1177275
Lessingia micradenia var. micradenia
John Thomas Howell
1946-9-15
23010
Marin
Rocky Ridge Fire Trail Mt. Tamalpais, Rocky Ridge Fire Trail
Comment
UC1177278
Stephanomeria virgata subsp. pleurocarpa
John Thomas Howell
1945-7-15
21295
Marin
Fairfax hills Fairfax
Comment
UC1177283
Lactuca serriola
John Thomas Howell
1939-11-5
Marin
Manzanita
Comment
UC1177284
Corethrogyne filaginifolia
John Thomas Howell
1943-7-4
Marin
near Ledum Swamp; Point Reyes
Comment
UC1177286
Crepis capillaris
John Thomas Howell
1945-7-29
21338
Marin
Bolinas
Comment
UC1177293
Cirsium quercetorum
John Thomas Howell
1943-6-6
18200
Marin
between Mill Valley Muir Woods
Comment
UC1177294
Hesperevax sparsiflora var. sparsiflora
John Thomas Howell
1940-5-26
15530
Marin
Little Carson Falls
Comment
UC1177296
Gamochaeta ustulata
John Thomas Howell
1946-5-4
21752
Marin
Dillons Beach
Comment
UC1177300
Centaurea calcitrapa
J. Thomas Howell
1944-6-25
Marin
Santa Venetia
Comment
UC1177303
Cirsium occidentale var. occidentale
J. Thomas Howell
1946-5-14
21844
Marin
along road between Rock Spring and Summit Meadow; Mt. Tamalpais
Comment
UC1177304
Cirsium occidentale var. venustum
John Thomas Howell
1947-7-9
23330
Marin
between Phoenix and Lagunitas Lakes; Mt. Tamalpais, Fish Grade
Comment
UC1177306
Cirsium occidentale var. occidentale
J. Thomas Howell
1942-5-16
16956
Marin
Sausalito Hills
Comment
UC1177313
Lasthenia californica subsp. californica
John Thomas Howell
1947-4-23
23069
Marin
w of Mt. Vision; Drakes Estero
Comment
UC1177314
Layia platyglossa
John Thomas Howell
1939-5-21
Marin
S. Tiburon
Comment
UC1177316
Hemizonia congesta subsp. congesta
John Thomas Howell
1946-6-13
22046
Marin
e Aurora School (at the Sonoma Co. line)
Comment
UC1177321
Achyrachaena mollis
J. Thomas Howell
1946-4-18
21672
Marin
Black Point
Comment
UC1177322
Madia sativa
John Thomas Howell
1945-7-15
21293
Marin
at Fairfax city limits (Ridgecrest Blvd)
Comment
UC1177325
Quercus agrifolia var. frutescens
John Thomas Howell
1947-3-23
23048
Marin
Bootjack Mt. Tamalpais
Comment
UC1177327
Potamogeton nodosus
John Thomas Howell
1939-8-27
15319
Marin
Phoenix Lake
Comment
UC1177331
Allium amplectens
John Thomas Howell
1946-5-12
21816
Marin
Carson country
Comment
UC1177332
Allium dichlamydeum
John Thomas Howell
1947-6-18
23276
Marin
Dillons Beach
Comment
UC1177335
Xerophyllum tenax
John Thomas Howell
1947-7-9
23329
Marin
above Lake Lagunitas (Mount Tamalpais); Mount Tamalpais
Comment
UC1177380
Juncus xiphioides
John Thomas Howell
1944-9-24
20750
Marin
e side Bolinas Lagoon
Comment
UC1177390
Sparganium erectum subsp. stoloniferum
John Thomas Howell
1945-10-14
21548
Marin
Olema Marshes
Comment
UC1177403
Juncus bolanderi
John Thomas Howell
1942-7-12
17025
Marin
Potrero Meadow Mt. Tamalpais
Comment
UC1177404
Juncus occidentalis
John Thomas Howell
1944-6-25
19646
Marin
Santa Venetia
Comment
UC1177406
Typha angustifolia
John Thomas Howell
1948-9-19
25288
Marin
Phoenix Lake Mt. Tamalpais; , Phoenix Lake
Comment
UC1177413
Lithocarpus densiflorus
John Thomas Howell
1947-5-25
23206
Marin
Mt. Tamalpais; Berry Trail
Comment
UC1177414
Quercus X eplingii
John Thomas Howell
1946-5-19
21904
Marin
near Camp Lihienthal; Fairfax Hills
Comment
UC1177416
Quercus X eplingii
John Thomas Howell
1945-9-23
21495
Marin
between Phoenix Lake and Lake Lagunitas (n side of Fish Grade); Fish Grade
Comment
UC1177422
Hypericum formosum var. scouleri
John Thomas Howell
1947-7-6
23322
Marin
between Rock Spring and Laurel Dell (Mt. Tamalpais); Mt. Tamalpais
Comment
UC1177427
Moehringia macrophylla
John Thomas Howell
1946-7-7
22210
Marin
Potrero Meadow Mt. Tamalpais; , Potrero Meadow
Comment
UC1177428
Paronychia franciscana
John Thomas Howell
1941-6-8
16259
Marin
hills ne San Rafael
Comment
UC1177429
Silene multinervia
John Thomas Howell
1946-5-12
21798
Marin
Carson Ridge
Comment
UC1177432
Rosa spithamea
John Thomas Howell
1946-9-8
23001
Marin
sw Lake Lagunitas; Mt. Tamalpais
Comment
UC1177440
Lupinus bicolor
John Thomas Howell
1943-5-9
17971
Marin
San Rafael Hills
Comment
UC1177443
Oxalis albicans subsp. pilosa
John Thomas Howell
1939-4-23
14607
Marin
Blythe Canyon Mill Valley
Comment
UC1177444
Hypericum concinnum
John Thomas Howell
1946-7-7
22200
Marin
burned area w. of Potrero Meadow (Mt Tamalpais); Mt Tamalpais
Comment
UC1177446
Hesperolinon micranthum
John Thomas Howell
1946-7-7
22192
Marin
s of Barths Retreat; Mt. Tamalpais
Comment
UC1177451
Rhamnus crocea
John Thomas Howell
1946-5-16
21884
Marin
w side Angel Island
Comment
UC1177455
Viola ocellata
John Thomas Howell
1946-5-14
21841
Marin
Potrero Meadow; Mount Tamalpais, Potrero Meadow
Comment
UC1177458
Lupinus nanus
John Thomas Howell
1947-4-23
23072
Marin
Drakes Estero w Mt. Vision; Drakes Estero w of Mt. Vision
Comment
UC1177459
Lupinus bicolor
John Thomas Howell
1944-5-28
19530
Marin
between Almonte and Mill Valley; between Almonte and Mill Valley
Comment
UC1177461
Vicia sativa subsp. nigra
John Thomas Howell
1946-5-12
21760
Marin
near Fairfax
Comment
UC1177462
Vicia hirsuta
John Thomas Howell
1943-7-4
18281
Marin
near Inverness
Comment
UC1177468
Vicia sativa subsp. nigra
John Thomas Howell
1945-6-3
20919
Marin
near Inverness
Comment
UC1177469
Vicia hassei
John Thomas Howell
1943-5-9
17979
Marin
San Rafael hills; San Rafael
Comment
UC1177475
Lupinus microcarpus var. densiflorus
John Thomas Howell
1946-5-12
21761
Marin
between Fairfax and Country Club
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
UC1177478
Lupinus nanus
John Thomas Howell
1944-6-4
19552
Marin
w Inverness (Inverness Ridge); Inverness Ridge
Comment
UC1177479
Lupinus bicolor
John Thomas Howell
1946-4-13
21596
Marin
Mt. Tamalpais , Summit Meadow to Rock Spring (Summit Meadow to Rock Spring)
Comment
UC1177480
Vulpia octoflora var. hirtella
John Thomas Howell
1946-6-2
21988
Marin
n of Mt. Tamalpais, West Peak (Berry Trail); Mt. Tamalpais
Comment
UC1177483
Phalaris minor
John Thomas Howell
1944-5-28
19511
Marin
between Manzanita and Almonte
Comment
UC1177484
Phalaris aquatica
John Thomas Howell
1941-6-10
16295
Marin
Novato
Comment
UC1177486
Phleum alpinum
John Thomas Howell
1945-6-12
20954
Marin
Point Reyes Peninsula; near radio station
Comment
UC1177490
Pleuropogon hooverianus
John Thomas Howell
1947-4-27
23107
Marin
Ross
Comment
UC1177493
Paspalum dilatatum
John Thomas Howell
1945-8-5
21364
Marin
Stinson Beach near Stinson Beach, McKinnan's Landing (McKinnan's Landing)
Comment
UC1177494
Paspalum dilatatum
John Thomas Howell
1940-9-15
Marin
Stinson Beach
Comment
UC1177496
Polypogon interruptus
John Thomas Howell
1945-6-24
Marin
Rock Spring to Laurel Dell Mt. Tamalpais; , Rock Spring to Laurel Dell
Comment
UC1177503
Athyrium filix-femina var. cyclosorum
John Thomas Howell
1939-9-10
Marin
Stinson Beach
Comment
UC1177506
Equisetum arvense
John Thomas Howell
1944-3-26
19340
Marin
Inverness
Comment
UC1177513
Pilularia americana
John Thomas Howell
1947-7-7
25357
Marin
strand of Lake Lagunitas
Comment
UC1177516
Athyrium filix-femina var. cyclosorum
John Thomas Howell
1950-10-11
27468
Marin
Bear Valley
Comment
UC1422872
Clarkia amoena subsp. amoena
John Thomas Howell
1946-6-9
22012
Marin
Pierce Ranch Pt. Reyes Peninsula
Comment
UC1422875
Clarkia gracilis subsp. sonomensis
John Thomas Howell
1940-5-12
15420
Marin
Lagunitas Creek
Comment Read comments Jun 24 2011
UC1422879
Clarkia purpurea subsp. purpurea
John Thomas Howell
1947-5-21
23187
Marin
Tiburon
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
UC2055636
Stachys pycnantha
John Thomas Howell
1937-7-4
13091
Marin
Tiburon.
Comment
UC421611
Layia platyglossa
John Thomas Howell
1930-4-20
4735
Marin
Pt. Reyes
Comment
UC421645
Luzula macrantha
John Thomas Howell
1927-3-13
2285
Marin
Point San Quentin
Comment
UC450610
Scribneria bolanderi
John Thomas Howell
1945-4-29
20791
Marin
w of Camp Handy (Mount Tamalpais); Mount Tamalpais
Comment
UC473460
Monardella villosa subsp. villosa
John Thomas Howell
1930-7-20
5382
Marin
Slope southeast side Mt. Tamalpais along Wheeler Trail.
Comment
UC517438
Cuscuta subinclusa
John Thomas Howell
1926-8-15
2182
Marin
above Corte Madera; Mt. Tamalpais
Comment
UC517458
Marah fabacea
John Thomas Howell
1933-4-12
10993
Marin
Sausalito
Comment
UC518009
Arctostaphylos glandulosa subsp. glandulosa
John Thomas Howell
1933-3-19
10868
Marin
above Mill Valley (s side of mt.); Mt. Tamalpais
Comment
UC583255
Carex mendocinensis
John Thomas Howell, J. W. Stacey
1936-6-7
Marin
Near Bootjack, Mount Tamalpais.
Comment
UC618377
Linanthus acicularis
John Thomas Howell
1938-5-22
13789
Marin
San Anselmo Canyon
Comment
UC703117
Sidalcea hickmanii subsp. viridis
John Thomas Howell
1942-6-21
16997
Marin
Carson Ridge
Comment
UC710413
Streptanthus glandulosus subsp. secundus
John Thomas Howell
1943-5-9
17976
Marin
San Rafael Hills
Comment
UC710451
Carex harfordii
John Thomas Howell
1943-7-4
18266
Marin
near Ledum Swamp; Pt. Reyes Peninsula
Comment
UC710506
Carex cusickii
John Thomas Howell
1943-7-11
18283
Marin
Potrero Meadows Mt. Tamalpais, Potrero Meadows
Comment
UC710610
Pelargonium grossularioides
John Thomas Howell
1944-7-23
19842
Marin
San Rafael
60
Comment
UC710611
Lactuca saligna
John Thomas Howell
1943-9-5
19324
Marin
Mill Valley
7
Comment
UC710622
Acacia dealbata
John Thomas Howell
1943-8-29
19312
Marin
Summit [Arenme] Ridge above Mill Valley
152
Comment
UC710623
Rubus discolor
John Thomas Howell
1943-8-29
19311
Marin
Summit (Avenue) Ridge Mill Valley; , Summit (Avenue) Ridge
Comment
UC750549
Lessingia hololeuca
John Thomas Howell
1945-9-16
21484
Marin
n San Rafael (and e of San Venetia)
Comment
UC750550
Heterotheca oregona var. oregona
John Thomas Howell
1945-9-16
21498
Marin
n of San Rafael (along railroad)
Comment
UC750586
Holcus lanatus
John Thomas Howell
1945-7-29
21355
Marin
Bolinas
Comment
UC750591
Carduus pycnocephalus subsp. pycnocephalus
J. Thomas Howell
1946-5-4
21754
Marin
near Burdell (along Redwood Highway); Redwood Highway
Comment
UC750600
Parapholis incurva
John Thomas Howell
1945-5-6
20816
Marin
San Rafael
Comment
UC750601
Lathyrus tingitanus
John Thomas Howell
1945-7-1
21260
Marin
Tiburon
Comment
UC750608
Centunculus minimus
John Thomas Howell
1945-6-12
20945
Marin
Mount Tamalpais, Potrero Meadow Potrero Meadow; Mount Tamalpais, Potrero Meadow
Comment
UC750609
Holozonia filipes
John Thomas Howell
1945-8-12
21372
Marin
Rock Spring Mt. Tamalpais, Rock Spring
Comment
UC750611
Pleuropogon californicus
John Thomas Howell
1945-5-9
20828
Marin
between Hamilton Field and Ignacio
Comment
UC750706
Pentachaeta bellidiflora
John Thomas Howell
1946-5-25
21933
Marin
Greenbrae Hills
Comment
UC750707
Papaver californicum
John Thomas Howell
1946-5-30
21962
Marin
Little Carson Canyon
Comment
UC817987
Vulpia microstachys var. ciliata
John Thomas Howell
1938-6-9
13909
Marin
Laurel Dell; Mt. Tamalpais
Comment
UC824432
Carex densa
John Thomas Howell
1938-6-5
13903
Marin
Rock Spring Mt. Tamalpais, Rock Spring
Comment
UC879570
Cuscuta salina var. major
John Thomas Howell
1939-11-5
15386
Marin
Sausalito
Comment
UC879571
Cuscuta salina var. major
John Thomas Howell
1939-9-3
15356
Marin
mouth of San Antonio Creek San Antonio Creek
Comment
UC904992
Carex densa
John Thomas Howell
1945-5-6
Marin
San Rafael, near Dominican College
Comment
UC904993
Carex densa
John Thomas Howell
1945-5-2
17935
Marin
Big Carson Canyon
Comment
UC905011
Carex athrostachya
John Thomas Howell
1946-6-13
22025
Marin
Chileno Valley
Comment
UC905018
Carex gracilior
John Thomas Howell
1946-5-4
21717
Marin
e Aurora School; Sonoma Co. line
Comment
UC905019
Carex subbracteata
John Thomas Howell
1946-5-16
21858
Marin
se side Angel Island
Comment
UC905025
Carex buxbaumii
John Thomas Howell
1947-6-4
23213
Marin
swale near radio station Pt. Reyes Peninsula
Comment
UC905052
Torreya californica
John Thomas Howell
1948-5-16
24303
Marin
near top Eldridge Grade; Mt. Tamalpais
Comment
UC905053
Torreya californica
John Thomas Howell
1948-5-16
24304
Marin
near top of Eldridge Grade Mt. Tamalpais, Eldridge Grade
Comment
UC905068
Hordeum murinum subsp. glaucum
John Thomas Howell
1949-4-24
25307
Marin
Fort McDowell Angel Island, Fort McDowell
Comment
UC905069
Cypselea humifusa
John Thomas Howell
1947-10-19
24184
Marin
Alpine Lake
Comment
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
UCD103127
Erodium brachycarpum
John Thomas Howell
1947-4-23
23075
Marin
East side of Drakes Estero, Point Reyes Peninsula.
Comment
UCD103482
Pelargonium grossularioides
John Thomas Howell
1944-7-23
19842
Marin
San Rafael.
60
Comment
UCD106628
Lupinus arboreus
John Thomas Howell
1958-7-6
33642
Marin
south side of Mt. Tamalpais above Cascade Canyon.
Comment
UCD106705
Lotus uliginosus
John Thomas Howell
1944-7-30
19856
Marin
Between Mill Valley and head of salt marshes.
3
Comment
UCD113764
Rubus armeniacus
John Thomas Howell
1943-8-29
19311
Marin
Summit Avenue Ridge, Mill Valley.
Comment
UCD120690
Phacelia suaveolens
John Thomas Howell
1946-5-19
21919
Marin
Carson Ridge.
Comment
UCD135189
Sequoia sempervirens
John Thomas Howell
1957-2-3
32020
Marin
Fern Canyon, Mt. Tamalpais.
Comment
UCD135191
Sequoia sempervirens
John Thomas Howell
1957-2-3
32020
Marin
Fern Canyon, Mt. Tamalpais.
Comment
UCD135596
Senecio minimus
John Thomas Howell
1944-7-30
19857
Marin
Almonte.
Comment
UCD135755
Senecio sylvaticus
John Thomas Howell
1947-10-19
24192
Marin
desiccated strand of Alpine Lake.
Comment
UCD47295
Quercus X subconvexa
John Thomas Howell
1952-5-15
28314
Marin
Serpentine at south end of Tiburon Peninsula, Marin Co.
Comment
UCD47323
Quercus X subconvexa
John Thomas Howell
1959-8-23
34601
Marin
(Q. durata X Q. garryana). Near Barth's Retreat, Mount Tamalpais, Marin County.
Comment
UCD48556
Navarretia rosulata
John Thomas Howell
1946-6-23
22114
Marin
Carson Ridge, Marin County.
Comment
UCD48557
Navarretia rosulata
John Thomas Howell
1952-9-7
28854
Marin
Barths Retreat, Mt. Tamalpais, Marin County.
Comment
UCD51755
Agrostis hendersonii
John Thomas Howell
1947-4-23
23062
Marin
Pt. Reyes Peninsula, Drakes Estero, west of Mt. Vision.
Comment Read comments Nov 29 2010
UCD51796
Agrostis avenacea
John Thomas Howell
1971-6-2
47649
Marin
borderin S.F. Bay on road from San Rafael to McNear's.
Comment
UCD51982
Agrostis densiflora
John Thomas Howell
1945-7-4
21274
Marin
Inverness.
Comment
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
UCD52397
Agrostis exarata
John Thomas Howell
1943-5-22
18156
Marin
Lagunitas Meadows.
Comment
UCD52516
Agrostis exarata
John Thomas Howell
1944-6-25
19661
Marin
between Santa Venetia and Chinese Camp.
Comment
UCD58992
Bromus madritensis
John Thomas Howell
1947-4-27
23096
Marin
Bald Mt. west of San Anselmo.
Comment
UCD59917
Crypsis schoenoides
John Thomas Howell
1980-9-8
53895
Marin
Alpine Lake near Bon Tempe Lake dam.
Comment
UCD60454
Danthonia californica
John Thomas Howell
1947-7-6
23326
Marin
Mt. Tamalpais. Near Barths Retreat .
Comment
UCD63892
Desmazeria rigida
John Thomas Howell
1943-6-13
18225
Marin
Sausalito.
60
Comment
UCD63893
Desmazeria rigida
John Thomas Howell
1943-6-13
18225
Marin
Sausalito.
60
Comment
UCD66782
Glyceria declinata
John Thomas Howell
1957-7-22
32817
Marin
2 miles south of Olema.
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
UCD88655
Parapholis incurva
John Thomas Howell
1945-5-6
20816
Marin
San Rafael.
Comment
UCD90097
Pleuropogon hooverianus
John Thomas Howell
1943-5-22
18155
Marin
Lagunitas Meadows.
Comment
UCD90982
Polypogon australis
John Thomas Howell
1967-6-8
42547
Marin
Inverness.
Comment
UCD93592
Trisetum canescens
John Thomas Howell
1944-4-16
s.n.
Marin
Corte Madera Ridge. Mt. Tamalpais.
Comment
UCD99205
Spergularia media var. media
John Thomas Howell
1944-4-23
19397
Marin
Escalle.
Comment
UCD99206
Spergularia villosa
John Thomas Howell
1944-6-25
19643
Marin
Santa Venetia.
7
Comment
UCD99207
Spergularia villosa
John Thomas Howell
1944-6-25
19643
Marin
Santa Venetia.
7
Comment
UCR142978
Amaranthus californicus
J. T. Howell
1939-9-3
15352
Marin
San Antonio Creek
3
Comment
UCR244518
Digitaria sanguinalis
J. T. Howell
1989-10-16
s.n.
Marin
Terra Linda, Freitas Park
29
Comment
UCR64469
Spergularia media
J. T. Howell
1944-4-23
19397
Marin
Pacific coast, Escalle.
Comment
UCR80275
Pelargonium grossularioides
J. T. Howell
1944-7-23
19842
Marin
San Francisco Bay region, San Rafael
61
Comment
UCSB2958
Acacia dealbata
Howell, John
1943-8-29
Marin
Summit (Avenue) ridge above Mill Valley
152
Comment
CAS-BOT-BC101677
Myrica californica
John Thomas Howell
1927-4-23
2351
Marin
About 1 mile east of Big Lagoon
30
Comment
CAS-BOT-BC10250
Delphinium hesperium
John Thomas Howell
1972-6-18
48872
Marin
Near Ring Hill, Tuburon Peninsula
167
Comment
CAS-BOT-BC111568
Schoenoplectus americanus
John Thomas Howell
1944-9-10
20724
Marin
Marshes north of Olema
Comment
CAS-BOT-BC111827
Schoenoplectus tabernaemontani
John Thomas Howell
1944-9-10
20722
Marin
Marshes north of Olema.
Comment
CAS-BOT-BC112393
Isolepis carinata
John Thomas Howell
1927-5-8
2369
Marin
Low place in grassland north of Lake Lagunitas
Comment
CAS-BOT-BC112862
Eleocharis macrostachya
John Thomas Howell
1941-6-10
16298
Marin
9 mi. N of Novato
Comment
CAS-BOT-BC112864
Eleocharis macrostachya
John Thomas Howell
1939-8-27
15325
Marin
Lake Lagunitas
Comment
CAS-BOT-BC114725
Cyperus difformis
John Thomas Howell
1945-1-7
20771
Marin
CCC Camp above Muir Woods, Mt. Tamalpais.
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-BC116900
Carex subbracteata var. subbracteata
John Thomas Howell; J. W. Stacey
1936-6-7
12633
Marin
San Geronimo
Comment
CAS-BOT-BC116903
Carex subbracteata var. subbracteata
John Thomas Howell; J. W. Stacey
1936-6-7
12652
Marin
Pine woods on road to Point Reyes.
Comment
CAS-BOT-BC118430
Carex praegracilis
John Thomas Howell
1944-4-23
19404
Marin
Edge of salt marsh, hills SE of Kentfield.
Comment
CAS-BOT-BC119396
Carex obnupta
John Thomas Howell; J. W. Stacey
1936-6-7
12648
Marin
Ledlum Swamp on road to Point Reyes.
Comment
CAS-BOT-BC119525
Carex nudata
John Thomas Howell
1947-6-15
s.n.
Marin
E of Bootjack, Mt. Tamalpais.
Comment
CAS-BOT-BC12794
Lepidium perfoliatum
John Thomas Howell
1944-5-28
19512
Marin
Between Manzanita and Almonte.
Comment
CAS-BOT-BC12852
Lepidium pinnatifidum
John Thomas Howell
1976-6-2
51804
Marin
Corte Madera. In park.
Comment
CAS-BOT-BC130022
Fritillaria affinis
John Thomas Howell
1950-3-28
26304
Marin
Pt. Reyes near the lighthouse
Comment
CAS-BOT-BC146282
Arrhenatherum elatius var. elatius
John Thomas Howell
1947-6-4
23224
Marin
San Geronimo.
Comment
CAS-BOT-BC151938
Diplacus douglasii
John Thomas Howell
1943-4-3
17892
Marin
Tiburon Peninsula
Comment
CAS-BOT-BC151943
Diplacus douglasii
John Thomas Howell; W. L. Jepson
1927-3-20
2292
Marin
Mill Valley
152
Comment
CAS-BOT-BC151946
Diplacus douglasii
John Thomas Howell
1946-3-24
21587
Marin
Carson country
Comment
CAS-BOT-BC157408
Solanum umbelliferum
J. T. Howell
1945-4-29
20780
Marin
Phoenix Lake
Comment
CAS-BOT-BC157464
Solanum umbelliferum
J. T. Howell
1941-3-30
s.n.
Marin
Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC162335
Bromus madritensis
John Thomas Howell
1990-2-13
s.n.
Marin
Northgate Drive near Sears. (near Nova Albion)
Comment
CAS-BOT-BC164605
Clarkia gracilis subsp. gracilis
John Thomas Howell
1946-6-23
22119
Marin
Head of Little Carson Canyon
Comment
CAS-BOT-BC165086
Clarkia rubicunda
John Thomas Howell
1946-6-30
22131
Marin
Valley east of Rodeo Lagoon
Comment
CAS-BOT-BC170987
Alnus rhombifolia
John Thomas Howell
1940-5-26
s.n.
Marin
Litlle Canyon
Comment
CAS-BOT-BC172453
Clarkia purpurea subsp. purpurea
John Thomas Howell
1947-7-6
23321
Marin
Near Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC175952
Salpichroa origanifolia
John Thomas Howell
1943-6-13
18224
Marin
Sausalito
Comment
CAS-BOT-BC176097
Verbena bonariensis
John Thomas Howell
1943-9-5
19323
Marin
In southern part of Mill Valley
7
Comment
CAS-BOT-BC176101
Verbena lasiostachys var. scabrida
John Thomas Howell
1939-10-15
15377
Marin
Lily Lake
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-BC184809
Vulpia myuros subsp. megalura
John Thomas Howell
1943-6-6
18204
Marin
Ridge se. of Muir Woods
Comment
CAS-BOT-BC185860
Vulpia octoflora var. hirtella
John Thomas Howell
1946-6-2
21988
Marin
Bury Trail, North of West Peak, Mt. Tamalpais
Comment
CAS-BOT-BC19236
Carex barbarae
John Thomas Howell
1943-9-19
19329
Marin
Dry hills overlooking Escalle salt marsh.
Comment
CAS-BOT-BC19252
Carex barbarae
John Thomas Howell
1944-9-24
20761
Marin
West side of Bolinas Lagoon.
Comment
CAS-BOT-BC197008
Echinochloa colona
John Thomas Howell
1990-10-24
s.n.
Marin
At Frazier Park on Monticello at the entrance to Kaiser Hospital, San Rafael
Comment
CAS-BOT-BC19893
Carex echinata subsp. phyllomanica
John Thomas Howell
1949-5-25
25331
Marin
Marsh near radio station, Pt. Reyes Peninsula.
Comment
CAS-BOT-BC19896
Carex echinata subsp. phyllomanica
John Thomas Howell
1949-5-25
25331
Marin
Marsh near radio station, Pt. Reyes Peninsula.
Comment
CAS-BOT-BC20883
Carex globosa
John Thomas Howell
1952-5-30
28318
Marin
Potrero Meadow, Mt. Tamalpais.
Comment
CAS-BOT-BC20884
Carex globosa
John Thomas Howell
1944-4-2
19368 A
Marin
Southeast of Laurle Del. Mt. Tamalpais.
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-BC210249
Cornus sericea
John Thomas Howell
1939-9-10
s.n.
Marin
Big Lagoon
Comment
CAS-BOT-BC218487
Angelica hendersonii
John Thomas Howell
1944-7-9
19704
Marin
Inverness Ridge
Comment
CAS-BOT-BC219429
Nemophila parviflora
John Thomas Howell
1939-6-4
14709
Marin
Lagunitas
Comment
CAS-BOT-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-BC220406
Monardella purpurea
John Thomas Howell
1972-6-18
48866
Marin
Near Ring Hill, Tiburon Peninsula
167
Comment
CAS-BOT-BC220542
Monardella villosa
John Thomas Howell
1946-6-30
22133
Marin
East of Rodeo Lagoon
Comment
CAS-BOT-BC220544
Monardella villosa
John Thomas Howell
1939-7-2
14836
Marin
Between Pirates Cove and Big Lagoon
Comment
CAS-BOT-BC22136
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-BC22902
Agoseris heterophylla
John Thomas Howell
1946-6-2
s.n.
Marin
Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC230230
Carpobrotus edulis
John Thomas Howell
1948-6-6
24330
Marin
Bolinas Sand Spit
Comment
CAS-BOT-BC232714
Navarretia rosulata
John Thomas Howell
1946-7-7
22191
Marin
Mount Tamalpais. Burned area S of Barth's Retreat
Comment
CAS-BOT-BC236909
Chloropyron maritimum subsp. palustre
John Thomas Howell
1946-5-25
21939
Marin
Greenbrae Marshes
Comment
CAS-BOT-BC237994
Chloropyron molle subsp. molle
John Thomas Howell
1945-7-8
21277
Marin
At Burdell Station
Comment
CAS-BOT-BC238511
Triphysaria floribunda
John Thomas Howell
1949-5-22
s.n.
Marin
Drakes Estero crossing, Pt. Reyes Peninsula
Comment
CAS-BOT-BC240011
Scribneria bolanderi
John Thomas Howell
1945-4-29
20791
Marin
West of Camp Handy, Mt. Tamalpais
Comment
CAS-BOT-BC240193
Setaria viridis
John Thomas Howell
1954-9-23
30110
Marin
Milton H. Esberg place, Ross
Comment
CAS-BOT-BC246664
Poa howellii
John Thomas Howell
1947-4-27
23086
Marin
Black Mt. west of San Anselmo
Comment
CAS-BOT-BC254417
Piptatherum miliaceum
John Thomas Howell
1981-7-24
54413
Marin
Near St. John's Church, Ross
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-BC254481
Dichanthelium acuminatum subsp. acuminatum
John Thomas Howell
1941-5-25
16225
Marin
Portrero Meadow, Mount Tamalpais
Comment
CAS-BOT-BC254488
Dichanthelium acuminatum subsp. acuminatum
John Thomas Howell
1941-6-29
16340
Marin
Between Rock Spring and Laurel Dell, Mount Tamalpais
Comment
CAS-BOT-BC254489
Dichanthelium acuminatum subsp. acuminatum
John Thomas Howell
1943-7-3
18247
Marin
Near Bootjack, Mount Tamalpais
Comment
CAS-BOT-BC257625
Juncus
J. T. Howell
1987-10-14
s.n.
Marin
Terra Linda Community Gardens
Comment
CAS-BOT-BC259196
Eriogonum latifolium
John Thomas Howell
1941-6-8
16261
Marin
Hills ne. of San Rafael
Comment
CAS-BOT-BC259199
Eriogonum latifolium
John Thomas Howell
1966-5-25
41532
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC259509
Eriogonum luteolum var. caninum
John Thomas Howell
1972-6-18
48874
Marin
Above Vista de la Bahia at north end of Tiburon Peninsula
Comment
CAS-BOT-BC259664
Paspalum dilatatum
John Thomas Howell
1945-8-5
21364
Marin
McKinnon's Landing near Stinson Beach
Comment
CAS-BOT-BC265773
Phalaris aquatica
John Thomas Howell
1941-6-10
16295
Marin
Novato
Comment
CAS-BOT-BC267193
Potamogeton foliosus
John Thomas Howell
1946-9-29
s.n.
Marin
Back of beach, Stinson Beach
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-BC272254
Leymus X multiflorus
John Thomas Howell
1946-6-30
22148
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-BC273568
Leymus californicus
John Thomas Howell
1945-6-12
20948
Marin
Lagunitas
Comment
CAS-BOT-BC273569
Leymus californicus
John Thomas Howell
1944-7-7
19675
Marin
Fish Grade between Phoenix and Lagunitas Lakes
Comment
CAS-BOT-BC273573
Leymus californicus
John Thomas Howell
1943-6-6
18213
Marin
Upper end of Muir Woods
Comment
CAS-BOT-BC273576
Leymus californicus
John Thomas Howell
1939-7-2
14844
Marin
Near Muir Woods
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-BC274571
Centaurea calcitrapa
John Thomas Howell
1939-9-3
15342
Marin
Near Novato
Comment
CAS-BOT-BC279229
Centromadia pungens subsp. pungens
John Thomas Howell
1951-10-11
28294
Marin
Olema Marshes
Comment
CAS-BOT-BC281811
Carduus tenuiflorus
John Thomas Howell
1946-6-13
22020
Marin
Chileno Valley
Comment
CAS-BOT-BC281896
Carthamus lanatus
John Thomas Howell
1946-6-13
22040
Marin
Between Chileno Valley and Aurora School
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-BC282797
Glyceria leptostachya
John Thomas Howell
1946-9-8
22999
Marin
Lagunitas Creek just below Lake Lagunitas, Mt. Tamalpais
Comment
CAS-BOT-BC282877
Hainardia cylindrica
John Thomas Howell
1940-6-20
s.n.
Marin
Muir Beach to Stinson Beach
Comment
CAS-BOT-BC283098
Schedonorus arundinaceus
John Thomas Howell
1955-6-8
30300
Marin
Along highway just east of Olema
Comment
CAS-BOT-BC283099
Schedonorus arundinaceus
John Thomas Howell
1955-5-29
30257
Marin
Along canyon trail between Bootjack and Mountain Theater, Mt. Tamalpais
Comment
CAS-BOT-BC283523
Leymus X vancouverensis
John Thomas Howell
1945-6-30
21251
Marin
Stinson 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-BC28387
Carex gracilior
John Thomas Howell
1945-5-9
20849
Marin
Ignacis
Comment
CAS-BOT-BC284136
Eragrostis pectinacea var. pectinacea
John Thomas Howell
1959-11-4
35117
Marin
Reservoir north of Point Reyes (town)
Comment
CAS-BOT-BC286529
Cirsium occidentale var. venustum
John Thomas Howell
1944-6-18
19632
Marin
Between Lagunitas Meadows and Deer Park
Comment
CAS-BOT-BC287216
Cotula australis
John Thomas Howell
1945-9-16
21468
Marin
San Rafael
Comment
CAS-BOT-BC288730
Cirsium remotifolium
John Thomas Howell
1940-5-26
15520
Marin
San Anselmo
Comment
CAS-BOT-BC288731
Cirsium remotifolium
John Thomas Howell
1938-7-3
13942
Marin
Near W end of Lucas Valley
Comment
CAS-BOT-BC288733
Cirsium remotifolium
John Thomas Howell
1939-6-25
14795
Marin
Summit Ave, Mill Valley, Mt Tamalpais
Comment
CAS-BOT-BC288738
Cirsium remotifolium
John Thomas Howell
1936-6-7
12631
Marin
Whites Hill E of San Geronimo
Comment
CAS-BOT-BC288739
Cirsium remotifolium
John Thomas Howell
1936-6-7
12631
Marin
White's Hill E of San Geronimo
Comment
CAS-BOT-BC288745
Cirsium remotifolium
John Thomas Howell
1936-6-7
12631 A
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-BC288749
Cirsium remotifolium
John Thomas Howell
1938-7-3
13942
Marin
Near W end of Lucas Valley
Comment
CAS-BOT-BC288750
Cirsium remotifolium
John Thomas Howell
1938-7-3
13942
Marin
Near W end of Lucas Valley
Comment
CAS-BOT-BC289350
Hordeum murinum subsp. glaucum
John Thomas Howell
1940-5-26
15526
Marin
Little Carson Falls
Comment
CAS-BOT-BC291184
Erechtites glomeratus
John Thomas Howell
1966-5-25
s.n.
Marin
Just north of John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC29333
Ageratina adenophora
J. T. Howell
1929-6-2
4293
Marin
Hills above Lime Point
Comment
CAS-BOT-BC295437
Erigeron karvinskianus
John Thomas Howell
1947-5-4
23135
Marin
San Rafael
Comment
CAS-BOT-BC301210
Eriophyllum lanatum var. arachnoideum
John Thomas Howell
1939-4-23
14602
Marin
Blythedale Canyon, Mill Valley
Comment
CAS-BOT-BC30260
Brassica nigra
John Thomas Howell
1944-7-9
19723
Marin
South of Tomales Bay.
Comment
CAS-BOT-BC303648
Glebionis coronaria
John Thomas Howell
1944-9-24
20764
Marin
Bolinas
Comment
CAS-BOT-BC304436
Grindelia hirsutula
John Thomas Howell
1954-10-21
30113
Marin
Tamalpais Valley
Comment
CAS-BOT-BC304443
Grindelia hirsutula
J. T. Howell
1930-10-5
5524
Marin
2 mi. west of Marin--Sonoma Co. line, at north end of San Pablo Bay
Comment
CAS-BOT-BC305886
Helminthotheca echioides
John Thomas Howell
1930-6-22
5319
Marin
Fort Baker
Comment
CAS-BOT-BC306274
Hedypnois cretica
John Thomas Howell
1947-6-18
23278
Marin
Near Dillons Beach
Comment
CAS-BOT-BC306650
Helenium bigelovii
John Thomas Howell
1966-7-20
41988
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC309633
Hemizonia congesta subsp. lutescens
John Thomas Howell
1966-4-6
41466
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC311325
Hypochaeris glabra
John Thomas Howell
1946-5-12
21806
Marin
Carson Ridge
Comment
CAS-BOT-BC311898
Holozonia filipes
John Thomas Howell
1945-8-12
21372
Marin
Rock Spring, Mt. Tamalpais
Comment
CAS-BOT-BC312216
Eurybia radulina
John Thomas Howell
1946-9-15
23003
Marin
Near Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC314472
Grindelia hirsutula
John Thomas Howell
1933-7-23
11454
Marin
Sausalito Hills
Comment
CAS-BOT-BC31495
Carex leptopoda
John Thomas Howell; J. W. Stacey
1936-6-7
12638
Marin
Ledlum Swamp on road to Pt. Reyes.
Comment
CAS-BOT-BC321793
Layia gaillardioides
John Thomas Howell
1942-5-17
16960
Marin
Ridge above the cascades of San Anselmo Creek
Comment
CAS-BOT-BC322734
Microseris paludosa
John Thomas Howell
1927-4-23
2337
Marin
Hilltop southwest of Mill Valley
152
Comment
CAS-BOT-BC323962
Layia chrysanthemoides
John Thomas Howell
1970-5-10
46523
Marin
Meadow west of Rock Spring, Mt. Tamalpais
Comment
CAS-BOT-BC324139
Lessingia hololeuca
John Thomas Howell
1945-9-16
21485
Marin
North of San Rafael
Comment
CAS-BOT-BC324146
Lessingia hololeuca
John Thomas Howell
1927-4-15
2318
Marin
Baltimore Park
213
Comment
CAS-BOT-BC324148
Lessingia hololeuca
John Thomas Howell
1927-9-10
3095
Marin
Baltimore Park
213
Comment
CAS-BOT-BC324150
Lessingia hololeuca
John Thomas Howell
1945-9-16
21484
Marin
North of San Rafael, and east of Santa Venetia
Comment
CAS-BOT-BC32620
Castilleja leschkeana
John Thomas Howell
1947-6-4
23220
Marin
Pt. Reyes Peninsula. Swale near radio station.
Comment
CAS-BOT-BC327981
Pentachaeta alsinoides
John Thomas Howell
1946-5-16
21865
Marin
Laurel Dells, Mt. Tamalpais
Comment
CAS-BOT-BC331533
Acer macrophyllum
John Thomas Howell
1946-9-8
23000
Marin
Lagunitas Creek just below Lake Lagunitas. Mt. Tamalpais
Comment
CAS-BOT-BC337872
Lapsana communis
John Thomas Howell
1939-8-27
15306
Marin
Ross
Comment
CAS-BOT-BC338174
Lasthenia californica
John Thomas Howell
1929-6-2
4294
Marin
Between Ft. Baker and Ft. Barry
Comment
CAS-BOT-BC339141
Leontodon saxatilis subsp. saxatilis
John Thomas Howell
1945-7-29
21334
Marin
Bolinas
Comment
CAS-BOT-BC339143
Leontodon saxatilis subsp. saxatilis
John Thomas Howell
1945-7-29
21333
Marin
Bolinas
Comment
CAS-BOT-BC339145
Leontodon saxatilis subsp. saxatilis
John Thomas Howell
1945-9-16
21480
Marin
Near San Rafael
Comment
CAS-BOT-BC339146
Leontodon saxatilis subsp. saxatilis
John Thomas Howell
1945-7-29
21333
Marin
Bolinas
Comment
CAS-BOT-BC339977
Stebbinsoseris decipiens
John Thomas Howell
1946-6-20
22098
Marin
South of Stinson Beach
Comment
CAS-BOT-BC34030
Carex brevicaulis
John Thomas Howell
1947-4-2
23053
Marin
Laguna Ranch, Drakes Bay.
Comment
CAS-BOT-BC34032
Carex brevicaulis
John Thomas Howell
1944-6-4
19558
Marin
Inverness Ridge west of Inverness.
Comment
CAS-BOT-BC34038
Carex brevicaulis
John Thomas Howell
1969-4-20
45515
Marin
Point Reyes National Seashore. Higher slopes of Mount Wittenberg.
Comment
CAS-BOT-BC340452
Lactuca saligna
John Thomas Howell
1943-9-5
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-BC342211
Logfia filaginoides
John Thomas Howell
1942-7-5
17012
Marin
Matt Davis Trail, Mt. Tamalpais
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-BC343082
Madia gracilis
John Thomas Howell
1939-6-25
s.n.
Marin
Near West Point, Mt. Tamalpais
Comment
CAS-BOT-BC343714
Madia elegans
John Thomas Howell
1941-7-16
16377
Marin
Near Laurel Dell, Mt. Tamalpais
Comment
CAS-BOT-BC343717
Madia elegans
John Thomas Howell
1944-7-23
19844
Marin
San Rafael
Comment
CAS-BOT-BC34389
Carex cusickii
John Thomas Howell
1949-5-25
25330
Marin
Marsh near radio station, Pt. Reyes Peninsula.
Comment
CAS-BOT-BC348502
Micropus californicus var. californicus
John Thomas Howell
1943-5-2
s.n.
Marin
San Anselmo Creek canyon
Comment
CAS-BOT-BC348743
Microseris bigelovii
John Thomas Howell
1946-6-2
s.n.
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC348746
Microseris bigelovii
John Thomas Howell
1947-4-23
23061
Marin
Drakes Estero west of Mt. Vision
Comment
CAS-BOT-BC348748
Microseris bigelovii
John Thomas Howell
1947-4-23
23070
Marin
Drakes Estero west of Mt. Vision
Comment
CAS-BOT-BC348749
Microseris bigelovii
John Thomas Howell
1947-4-23
23061
Marin
Drakes Estero west of Mt. Vision
Comment
CAS-BOT-BC348922
Microseris douglasii subsp. douglasii
John Thomas Howell
1967-5-24
42255
Marin
Dakin Lake, just north of Old St. Hilary's Church, Tiburon
Comment
CAS-BOT-BC348941
Microseris douglasii subsp. douglasii
John Thomas Howell
1966-4-6
41463
Marin
John Thomas Howell Botanical Garden, Tiburon. Along path west of church
Comment
CAS-BOT-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-BC35010
Carex densa
John Thomas Howell
1944-4-8
s.n.
Marin
Tiburon.
Comment
CAS-BOT-BC35030
Carex densa
John Thomas Howell; J. W. Stacey
1936-6-7
12632
Marin
San Geronimo.
Comment
CAS-BOT-BC35041
Carex densa
John Thomas Howell
1945-5-6
s.n.
Marin
Near Dominican College. San Raphael.
Comment
CAS-BOT-BC357049
Pseudognaphalium luteoalbum
John Thomas Howell
1988-9-15
s.n.
Marin
Nicesio [Nicasio] Reservoir
Comment
CAS-BOT-BC357051
Pseudognaphalium luteoalbum
John Thomas Howell
1943-5-9
17948
Marin
San Rafael
Comment
CAS-BOT-BC361946
Psilocarphus tenellus
John Thomas Howell
1929-6-2
4295
Marin
Along road near Fort Barry
Comment
CAS-BOT-BC365678
Solidago spathulata
John Thomas Howell
1945-9-13
21463
Marin
Drakes Estero
Comment
CAS-BOT-BC365853
Soliva sessilis
John Thomas Howell
1967-5-5
42163
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC365856
Soliva sessilis
John Thomas Howell
1967-4-16
42064
Marin
Along Matt Davis Trail, Fern Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC365858
Soliva sessilis
John Thomas Howell
1946-4-18
21653
Marin
Ignacio
Comment
CAS-BOT-BC365859
Soliva sessilis
John Thomas Howell
1946-5-26
s.n.
Marin
Summit of road near Ledum Swamp
Comment
CAS-BOT-BC365860
Soliva sessilis
John Thomas Howell
1939-6-18
14776
Marin
Near Mud Lake
Comment
CAS-BOT-BC365861
Soliva sessilis
John Thomas Howell
1943-6-13
18231
Marin
Sausalito hills
Comment
CAS-BOT-BC365863
Soliva sessilis
John Thomas Howell
1967-6-8
s.n.
Marin
Near school on road to lighthouse, Pt. Reyes Peninsula
Comment
CAS-BOT-BC365865
Soliva sessilis
John Thomas Howell
1927-3-20
2289
Marin
Near Alto
30
Comment
CAS-BOT-BC365866
Soliva sessilis
John Thomas Howell
1967-6-8
42548
Marin
Pt. Reyes
Comment
CAS-BOT-BC36653
Brassica oleracea
John Thomas Howell
1950-5-4
s.n.
Marin
Mill Valley. Near Tamalpais High School.
Comment
CAS-BOT-BC372297
Layia platyglossa
John Thomas Howell
1930-4-20
4726
Marin
Pt. Reyes Peninsula, 5 miles from Iverness
Comment
CAS-BOT-BC374449
Sonchus asper
John Thomas Howell
1966-4-6
41473
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC374450
Sonchus asper
John Thomas Howell
1939-4-23
s.n.
Marin
Blithedale Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC374639
Sonchus oleraceus
J. T. Howell
1990-9-28
s.n.
Marin
Terra Linda - in weedy Northgate planter
Comment
CAS-BOT-BC375219
Stephanomeria elata
John Thomas Howell
1944-9-3
20718
Marin
West of Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC375224
Stephanomeria elata
John Thomas Howell
1944-9-3
20715
Marin
Matt Davis Trail east of Bootjack, Mt. Tamalpais
Comment
CAS-BOT-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-BC37916
Cardamine oligosperma
John Thomas Howell
1944-5-26
s.n.
Marin
Inverness.
Comment
CAS-BOT-BC383717
Xanthium strumarium
John Thomas Howell
1943-9-19
19330
Marin
Kentfield
Comment
CAS-BOT-BC383720
Xanthium strumarium
John Thomas Howell
1946-9-8
22995
Marin
Along Redwood Highway just north of San Rafael
Comment
CAS-BOT-BC384004
Mirabilis jalapa
John Thomas Howell
1959-11-4
35102
Marin
Sausalito
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-BC384574
Silene coniflora
John Thomas Howell
1946-5-30
21963
Marin
Little Carson Canyon
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-BC388312
Cerastium glomeratum
John Thomas Howell
1946-4-14
21629
Marin
Near Dillons Beach
Comment
CAS-BOT-BC388314
Cerastium glomeratum
John Thomas Howell
1975-3-20
51015
Marin
Bear Valley, National Seashore, Pt. Reyes Peninsula
Comment
CAS-BOT-BC390539
Spergularia media
John Thomas Howell
1944-4-23
19397
Marin
Escalle
Comment
CAS-BOT-BC390540
Spergularia media
John Thomas Howell
1944-4-23
19397
Marin
Escalle
Comment
CAS-BOT-BC390622
Spergularia rubra
John Thomas Howell
1940-5-20
s.n.
Marin
Pt. Reyes Lighthouse
Comment
CAS-BOT-BC390624
Spergularia rubra
John Thomas Howell
1933-4-1
10920
Marin
4.5 miles n. of San Rafael
Comment
CAS-BOT-BC391007
Spergularia villosa
John Thomas Howell
1944-6-25
19643
Marin
Santa Venetia
7
Comment
CAS-BOT-BC391010
Spergularia villosa
John Thomas Howell
1941-6-10
16276
Marin
Near Black Point
Comment
CAS-BOT-BC397715
Stellaria nitens
John Thomas Howell
1945-4-29
20790
Marin
above Camp Handy, Mt. Tamalpais
Comment
CAS-BOT-BC40224
Caulanthus lasiophyllus
John Thomas Howell
1940-5-20
15510
Marin
Point Reyes. Near lighthouse.
Comment
CAS-BOT-BC40225
Caulanthus lasiophyllus
John Thomas Howell
1939-6-25
s.n.
Marin
Nova Trail near West Point. Mount Tamalpais.
Comment
CAS-BOT-BC403945
Urtica dioica subsp. gracilis
John Thomas Howell
1946-6-16
22074
Marin
Inverness Peak
Comment
CAS-BOT-BC404152
Urtica dioica subsp. holosericea
John Thomas Howell
1945-8-5
21365
Marin
Near Stinson Beach at high tide line
Comment
CAS-BOT-BC413680
Persicaria capitata
John Thomas Howell
1969-4-27
45553
Marin
Gordon True's garden, San Rafael
Comment
CAS-BOT-BC414007
Polygonum aviculare subsp. aviculare
John Thomas Howell
1939-7-2
14814
Marin
Border of Almonte salt marsh
Comment
CAS-BOT-BC414010
Polygonum aviculare subsp. aviculare
John Thomas Howell
1939-6-25
14812
Marin
Cascade Canyon, Mill Valley
Comment
CAS-BOT-BC414011
Polygonum aviculare subsp. aviculare
John Thomas Howell
1939-6-25
14812
Marin
Cascade Canyon, Mill Valley
Comment
CAS-BOT-BC419016
Persicaria lapathifolia
J. T. Howell
1987-7-30
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-BC419210
Persicaria maculosa
John Thomas Howell
1959-11-4
35112
Marin
Stinson Beach
Comment
CAS-BOT-BC419211
Persicaria maculosa
John Thomas Howell
1941-6-10
16279
Marin
Near Black Point
Comment
CAS-BOT-BC419343
Persicaria punctata
John Thomas Howell
1924-8-31
643
Marin
Near Ross
Comment
CAS-BOT-BC419801
Polygonum marinense
John Thomas Howell
1949-5-22
25326
Marin
At head of Drakes Estero
Comment
CAS-BOT-BC419803
Polygonum marinense
John Thomas Howell
1945-6-3
s.n.
Marin
Inverness
Comment
CAS-BOT-BC420146
Polygonum ramosissimum subsp. ramosissimum
John Thomas Howell
1945-7-8
21284
Marin
San Antonio salt marshes
Comment
CAS-BOT-BC420980
Polygonum spergulariiforme
John Thomas Howell
1947-9-6
24182
Marin
East of Dillons Beach
Comment
CAS-BOT-BC420981
Polygonum spergulariiforme
John Thomas Howell
1946-9-20
23021
Marin
East of Dillons Beach
Comment
CAS-BOT-BC421766
Rumex conglomeratus
John Thomas Howell
1939-9-10
s.n.
Marin
Stinson Beach
Comment
CAS-BOT-BC422282
Rumex californicus
John Thomas Howell
1943-9-19
19328
Marin
Escalle
Comment
CAS-BOT-BC433256
Rumex crispus
John Thomas Howell
1959-9-10
34609
Marin
Bolinas
Comment
CAS-BOT-BC433454
Rumex crispus
John Thomas Howell
1953-7-2
29103
Marin
Tamalpais Valley
Comment
CAS-BOT-BC433488
Rumex fueginus
John Thomas Howell
1947-10-26
24197
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC433664
Rumex obtusifolius
John Thomas Howell
1943-7-4
18278
Marin
Inverness
Comment
CAS-BOT-BC433667
Rumex obtusifolius
John Thomas Howell
1940-9-15
s.n.
Marin
Stinson Beach
Comment
CAS-BOT-BC433717
Rumex occidentalis
John Thomas Howell
1946-6-30
22126
Marin
East of Rodeo Lagoon
Comment
CAS-BOT-BC433721
Rumex occidentalis
John Thomas Howell
1947-6-18
23287
Marin
North of Dillons Beach
Comment
CAS-BOT-BC433723
Rumex occidentalis
John Thomas Howell
1939-6-5
s.n.
Marin
Pt. Reyes Dunes
Comment
CAS-BOT-BC433783
Rumex pulcher
John Thomas Howell
1939-5-21
14706
Marin
East side, Tiburon Pesninsula
Comment
CAS-BOT-BC433932
Rumex salicifolius
John Thomas Howell
1944-6-28
19635
Marin
San Rafael
Comment
CAS-BOT-BC434107
Rumex transitorius
John Thomas Howell
1941-6-10
16303
Marin
9 mi. w. of Novato
Comment
CAS-BOT-BC434110
Rumex transitorius
John Thomas Howell
1946-7-7
22204
Marin
Potrero Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC434115
Rumex transitorius
John Thomas Howell
1943-9-5
19315
Marin
Between Tamalpais Valley and Tamalpais High School
Comment
CAS-BOT-BC434116
Rumex transitorius
John Thomas Howell
1946-6-13
22021
Marin
Chileno Valley
Comment
CAS-BOT-BC435172
Cypselea humifusa
John Thomas Howell
1947-10-19
24184
Marin
Strand of Alpine Lake
Comment
CAS-BOT-BC435174
Cypselea humifusa
J. T. Howell
1939-10-15
s.n.
Marin
Alpine Lake.
Comment
CAS-BOT-BC436395
Calystegia
John Thomas Howell
1947-5-21
23191
Marin
Tiburon
Comment
CAS-BOT-BC436396
Calystegia
John Thomas Howell
1947-5-21
23192
Marin
Tiburon
Comment
CAS-BOT-BC436400
Calystegia occidentalis subsp. occidentalis
John Thomas Howell
1946-6-20
23138
Marin
Sausalito
Comment
CAS-BOT-BC436401
Calystegia occidentalis subsp. occidentalis
John Thomas Howell
1946-6-20
22112
Marin
2 miles S of Olema
Comment
CAS-BOT-BC436403
Calystegia subacaulis
John Thomas Howell
1939-5-21
s.n.
Marin
W. Tiburon
Comment
CAS-BOT-BC436408
Calystegia subacaulis
John Thomas Howell
1946-5-16
s.n.
Marin
W. Angel Island
Comment
CAS-BOT-BC436500
Ligusticum apiifolium
John Thomas Howell
1941-6-8
16262
Marin
Hills NE of San Rafael
Comment
CAS-BOT-BC439219
Claytonia exigua subsp. exigua
John Thomas Howell
1945-4-29
s.n.
Marin
Above Camp Handy, Mt. Tamalpais
Comment
CAS-BOT-BC439224
Claytonia exigua subsp. exigua
John Thomas Howell
1946-3-24
21579
Marin
Carson Ridge
Comment
CAS-BOT-BC439227
Claytonia exigua subsp. exigua
John Thomas Howell
1946-3-24
21578
Marin
Carson Ridge
Comment
CAS-BOT-BC439233
Claytonia exigua subsp. exigua
John Thomas Howell
1946-3-17
s.n.
Marin
Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC439235
Claytonia exigua subsp. exigua
John Thomas Howell
1946-3-24
21579
Marin
Carson Ridge
Comment
CAS-BOT-BC439353
Claytonia gypsophiloides
John Thomas Howell
1946-3-24
21563
Marin
Fairfax Hills
Comment
CAS-BOT-BC441317
Luzula subsessilis
John Thomas Howell
1969-4-27
45557
Marin
Near west end of Lucas Valley
Comment
CAS-BOT-BC444903
Montia fontana
John Thomas Howell
1940-3-17
s.n.
Marin
Lagunitas Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC444905
Montia fontana
John Thomas Howell
1943-3-14
17890
Marin
Potrero Meadows, Mt. Tamalpais
Comment
CAS-BOT-BC444988
Montia fontana
John Thomas Howell
1949-4-6
25295
Marin
Hamilton Field
Comment
CAS-BOT-BC445232
Portulaca oleracea
John Thomas Howell
1984-8-5
s.n.
Marin
Growing in the Safeway Lot near Freitas Parkway, Terra Linda, San Rafael
Comment
CAS-BOT-BC445386
Alisma plantago-aquatica
John Thomas Howell
1944-7-9
19718
Marin
South of Tomales Bay
Comment
CAS-BOT-BC445440
Alisma triviale
John Thomas Howell
1980-9-8
53890
Marin
Between Lake Lagunitas picnic area and Bon Tempe Lake
Comment
CAS-BOT-BC445604
Echinodorus berteroi
John Thomas Howell
1959-11-4
35119
Marin
11 miles from Marshall on road to Petaluma
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-BC451610
Lilaea scilloides
John Thomas Howell
1941-6-8
16273
Marin
Near McNear's Landing
Comment
CAS-BOT-BC451833
Triglochin maritima
John Thomas Howell
1944-7-9
19710
Marin
South end of Tomales Bay
Comment
CAS-BOT-BC451848
Triglochin maritima
John Thomas Howell
1939-5-21
s.n.
Marin
On west side of Tiburon Peninsula
Comment
CAS-BOT-BC451850
Triglochin maritima
John Thomas Howell
1941-6-8
16271
Marin
Near McNear's Landing
Comment
CAS-BOT-BC451855
Triglochin maritima
John Thomas Howell
1944-7-9
19711
Marin
South end of Tomales Bay
Comment
CAS-BOT-BC452038
Phyllospadix torreyi
John Thomas Howell
1943-10-3
19331
Marin
On Muir Beach
Comment
CAS-BOT-BC453957
Potamogeton pectinatus
John Thomas Howell
1939-8-27
15318
Marin
Phoenix Lake
Comment
CAS-BOT-BC454104
Ruppia cirrhosa
John Thomas Howell
1943-10-3
19334
Marin
Muir Beach
Comment
CAS-BOT-BC454165
Ruppia maritima
John Thomas Howell
1933-7-30
11469
Marin
Head of Tomales Bay
Comment
CAS-BOT-BC454243
Zannichellia palustris
John Thomas Howell
1947-4-30
23113
Marin
Near Dillons Beach
Comment
CAS-BOT-BC456179
Najas guadalupensis
John Thomas Howell
1946-9-29
23030
Marin
Stinson Beach
Comment
CAS-BOT-BC457934
Fragaria vesca subsp. californica
John Thomas Howell
1945-6-3
20931
Marin
Shell Beach
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-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-BC499200
Kopsiopsis strobilacea
John Thomas Howell
1942-6-21
16993
Marin
Carson Ridge
Comment
CAS-BOT-BC499305
Chlorogalum pomeridianum var. divaricatum
John Thomas Howell
1942-6-21
16991
Marin
Carson Ridge
Comment
CAS-BOT-BC499675
Orobanche californica subsp. californica
John Thomas Howell
1939-7-2
s.n.
Marin
Big Lagoon (Muir Beach)
Comment
CAS-BOT-BC499916
Orobanche fasciculata
John Thomas Howell
1939-5-21
s.n.
Marin
Tiburon Peninsula (south end)
Comment
CAS-BOT-BC499918
Orobanche fasciculata
John Thomas Howell
1927-5-8
2377
Marin
East slope of Mt. Tamalpais
Comment
CAS-BOT-BC510716
Maianthemum dilatatum
John Thomas Howell
1946-5-5
21757
Marin
Swale near radio station, 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-BC526097
Triteleia laxa
John Thomas Howell
1947-6-18
23280
Marin
North of Dillon Beach
Comment
CAS-BOT-BC527088
Xerophyllum tenax
John Thomas Howell
1947-7-9
23329
Marin
Above Lagunitas Lake, Mt. Tamalpais
Comment
CAS-BOT-BC527089
Xerophyllum tenax
John Thomas Howell
1947-5-25
23201
Marin
Kent Trail near Willow Meadow, Mt. Tamalpais
Comment
CAS-BOT-BC527402
Triteleia peduncularis
John Thomas Howell
1966-7-20
41986
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-BC530475
Zigadenus fontanus
John Thomas Howell
1942-6-21
17000
Marin
Warm Spring, Big Carson
Comment
CAS-BOT-BC530476
Zigadenus fontanus
John Thomas Howell
1937-7-4
13085
Marin
Tiburon
Comment
CAS-BOT-BC534878
Lemna valdiviana
John Thomas Howell
1939-7-16
s.n.
Marin
Azalea Flat, Matt Davis Trail, Mt. Tamalpais
Comment
CAS-BOT-BC536639
Horkelia californica
John Thomas Howell
1930-6-22
5323
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC536640
Horkelia californica
John Thomas Howell
1930-6-22
5323
Marin
Rodeo Lagoon
Comment
CAS-BOT-BC537077
Lemna minor
John Thomas Howell
1944-9-24
20748
Marin
Stinson Beach
Comment
CAS-BOT-BC54715
Erysimum cheiranthoides
John Thomas Howell
1990-9-28
s.n.
Marin
At Northgate, San Rafael.
Comment
CAS-BOT-BC57880
Equisetum X ferrissii
John Thomas Howell
1940-5-20
15491
Marin
Point Reyes.
Comment
CAS-BOT-BC57910
Equisetum arvense
John Thomas Howell
1957-7-22
32818
Marin
Pt. reyes Peninsula, near Drake's Bay.
Comment
CAS-BOT-BC57912
Equisetum arvense
John Thomas Howell
1945-5-20
20876
Marin
Tiburon.
Comment
CAS-BOT-BC60261
Lunaria annua
John Thomas Howell
1926-2-21
1638
Marin
Inverness.
Comment
CAS-BOT-BC61492
Sedum album
John Thomas Howell
1959-9-10
s.n.
Marin
Garden of Mrs. James Jenkins, Bolinas.
Comment
CAS-BOT-BC63780
Sedum radiatum subsp. radiatum
John Thomas Howell
1946-7-7
22220
Marin
Arturo trail at Potrero Meadow, Mt. Tamalpais.
Comment
CAS-BOT-BC66350
Cheilanthes covillei
John Thomas Howell
1959-8-23
34598
Marin
nw. of Bootjack, Mt. Tamalpais
Comment
CAS-BOT-BC68120
Athyrium filix-femina subsp. cyclosorum
John Thomas Howell
1944-7-9
19693
Marin
Sunny open bog, Inverness Ridge
Comment
CAS-BOT-BC68173
Cheilanthes intertexta
John Thomas Howell
1943-1-17
17877
Marin
Mt. Tamalpais - Collier springs and Rifle Camp
Comment
CAS-BOT-BC68716
Athyrium filix-femina var. californicum
John Thomas Howell
1966-4-18
41507
Marin
John Thomas Howell Botanical Garden, Tiburon
Comment
CAS-BOT-BC69747
Selaginella wallacei
John Thomas Howell
1939-7-2
s.n.
Marin
On top of ridge e. of Muir Woods.
Comment
CAS-BOT-BC69878
Isoetes nuttallii
John Thomas Howell
1947-5-25
23203
Marin
Mt. Tamalpais.
Comment
CAS-BOT-BC74543
Rorippa curvisiliqua
John Thomas Howell
1946-6-16
22090
Marin
Point Reyes Station.
Comment
CAS-BOT-BC74545
Rorippa curvisiliqua
John Thomas Howell
1947-4-27
23077
Marin
Bald Mountain west of San Anselmo.
Comment
CAS-BOT-BC76853
Polypodium calirhiza
John Thomas Howell
1947-3-23
23046
Marin
Mt. Tamalpais - Cataract Gulch
Comment
CAS-BOT-BC85812
Sequoia sempervirens
John Thomas Howell
1957-2-3
32020
Marin
Fern Canyon, Mt. Tamalpais
Comment
CAS-BOT-BC87279
Streptanthus glandulosus subsp. secundus
John Thomas Howell
1944-5-21
19488
Marin
Mount Tamalpais. South side of Phoenix Lake.
Comment
CAS-BOT-BC88482
Thysanocarpus curvipes
John Thomas Howell
1944-4-13
19376
Marin
Big Rock Ridge west of Hamilton Field.
Comment
CAS-BOT-BC89086
Lepidium didymum
John Thomas Howell
1940-5-20
s.n.
Marin
Point Reyes Lighthouse.
Comment
CDA2933
Atriplex semibaccata
J. T. Howell
1943-11-21
19338
Marin
West of San Quentin near Greenbrae.
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
CDA39973
Dichondra donelliana
J. T. Howell
1970-5-1
46524
Marin
West of Rock Spring at south end of Bolinas Ridge, Mt. Tamalpais.
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
CDA5218
Ludwigia uruguayensis
J. T. Howell
1945-7-1
21259
Marin
Willow thicket, Tiburon.
0
Comment
CDA62
Cakile maritima
J. T. Howell
1943-10-3
19333
Marin
Muir Beach.
Comment
CDA6610
Plantago truncata subsp. firma
J. T. Howell
1944-5-21
19500
Marin
Central Western; San Francisco Bay Area region; Lagunitas Meadows north side of Mount Tamalpais; elev. 800 ft
Comment
CDA8132
Layia chrysanthemoides
J. T. Howell
1970-5-1
46523
Marin
West of Rock Spring, Mt. Tamalpais.
0
Comment
JEPS58951
Castilleja affinis subsp. affinis
John Thomas Howell
1942-4-19
16947
Marin
Carson Ridge
Comment
LA203943
Heterotheca sessiliflora subsp. bolanderi
John Thomas Howell;
1933-7-30
11465
Marin
1 mi. E of Forest Knolls
Comment
LA208414
Galium californicum subsp. californicum
John Thomas Howell;
1930-7-20
5385
Marin
Mt. Tamalpais on SE side.
Comment
LA208423
Galium californicum subsp. flaccidum
John Thomas Howell;
1930-7-20
5381
Marin
Shaded slope just S of Phoenix Lake, Marin Co
Comment
LA210112
Cuscuta subinclusa
John Thomas Howell;
1930-10-5
5525
Marin
2 mi W of Marin-Sonoma Co. line
Comment
LA25808
Camissoniopsis cheiranthifolia
John Thomas Howell;
1946-5-4
1
Marin
Dillions Beach
Comment
LA39963
Cuscuta subinclusa
John Thomas Howell;
1939-9-3
15355
Marin
at mouth of San Antonio Creek
Comment
NY20771
Torreya californica
J. T. Howell
1948-5-16
24304
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
POM193916
Orthocarpus erianthus var. roseus
J. T. Howell
1930-4-20
4736
Marin
Pt. Reyes.
Comment
POM193961
Maianthemum racemosum subsp. amplexicaule
J. T. Howell
1927-9-9
3090
Marin
Mill Valley
Comment
POM193967
Orthocarpus faucibarbatus var. albidus
J. T. Howell
1930-4-20
4719
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
POM193969
Lasthenia minor
J. T. Howell
1930-4-20
4733
Marin
Pt. Reyes.
Comment
POM194215
Sanicula laciniata
J. T. Howell
1927-3-20
2290
Marin
Cote Madera Ridge
305
Comment
POM196452
Madia exigua
J. T. Howell
1927-5-8
2378
Marin
East slope of Mt. Tamalpais
Comment
POM203147
Atriplex leucophylla
J. T. Howell
1933-10-8
11706
Marin
Pt. Reyes Peninsula
Comment
POM203914
Vulpia microstachys var. pauciflora
J. T. Howell
1933-4-30
11194
Marin
North side of Mt. Tamalpais.
Comment
POM203971
Eryngium armatum
J. T. Howell
1933-7-30
11466
Marin
1.5 miles north of Olema
Comment
POM215031
Plantago erecta
J. T. Howell
1930-4-20
4721
Marin
Point Reyes Peninsula, 5 miles from Inverness.
Comment
POM261377
Cirsium quercetorum
J. T. Howell
1939-6-18
14774
Marin
Near Mud Lake
Comment
POM273074
Triglochin maritima
J. T. Howell
1945-6-30
21256
Marin
Salt marsh bordering Bolinas Lagoon, Stinson Beach
Comment
POM273087
Leontodon nudicaulis
J. T. Howell
1945-7-29
21333
Marin
Bolinas.
Comment
POM273088
Oxalis laxa
J. T. Howell
1946-6-20
22099
Marin
Stinson Beach.
Comment
POM273112
Anthoxanthum aristatum
J. T. Howell
1945-5-9
20856
Marin
between Hamilton Field and Ignacio, Marin County
Comment
POM299073
Phacelia distans
J. T. Howell
1930-4-20
4741
Marin
Pt. Reyes
Comment
POM303725
Amaranthus deflexus
J. T. Howell
1944-7-23
19852
Marin
Along sidewalks, San Rafael.
15
Comment
POM304547
Erigeron petrophilus
J. T. Howell
1942-7-12
17034
Marin
Northside Trail, Mt. Tamalpais
Comment
RSA0006850
Astragalus pycnostachyus var. pycnostachyus
J. T. Howell
1945-6-30
21253
Marin
Stinson Beach.
Comment
RSA0012740
Senecio hydrophilus
J. T. Howell
1946-9-20
23014
Marin
Chileno Valley
Comment
RSA0014199
Carex mendocinensis
J. T. Howell
1945-4-29
20789
Marin
Camp Handy.
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
RSA0059502
Claytonia gypsophiloides
J. T. Howell
1945-4-29
20795
Marin
Serpentine ridge W of Camp Handy, Mt. Tamalpais
Comment
RSA0070566
Cirsium andrewsii
J. T. Howell
1939-7-2
14818
Marin
Elk Valley, east of Tennessee Cove.
Comment
RSA0075668
Cotoneaster pannosus
J. T. Howell
1959-11-4
35104
Marin
Sausalito.
Comment
RSA0079892
Carex brevicaulis
John Thomas Howell
1946-5-4
21727
Marin
Near Dillons Beach.
Comment
RSA0079898
Carex brevicaulis
John Thomas Howell
1946-4-21
21683
Marin
Sandy down near radio station, Pt. Reyes Peninsula.
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
RSA114322
Clarkia davyi
J. T. Howell
1946-5-5
s.n.
Marin
Pt. Reyes Radio Station
Comment
RSA118072
Madia anomala
J. T. Howell
1955-5-29
30256
Marin
Near Rock Spring on Laurel Dell Trail, Mt. Tamalpais
Comment
RSA121026
Holocarpha virgata subsp. virgata
J. T. Howell
1956-9-13
31876
Marin
Lagunitas Meadows near Lake Lagunitas.
Comment
RSA126182
Rorippa curvipes var. truncata
J. T. Howell
1946-9-8
s.n.
Marin
Strand of Lake Lagunitas, Tamalpais Mts
Comment Read comments Feb 17 2009
RSA126187
Cypselea humifusa
J. T. Howell
1939-8-27
15327
Marin
Lake Lagunitas
Comment
RSA126191
Chenopodium macrospermum var. farinosum
J. T. Howell
1947-10-26
24194
Marin
Rodeo Lagoon.
Comment
RSA126195
Sisymbrium altissimum
J. T. Howell
1942-4-23
23076
Marin
Pt Reyes Road, west of Ledum Swamp.
Comment Read comments Jul 18 2015
RSA126210
Vicia lutea
J. T. Howell
1944-5-14
19466
Marin
Salmon Creek Canyon
Comment
RSA126237
Atriplex patula
J. T. Howell
1945-9-13
s.n.
Marin
Drakes Estero
Comment Read comments Jan 30 2008
RSA126238
Chenopodium ambrosioides var. ambrosioides
J. T. Howell
1945-8-19
21419
Marin
Inverness.
Comment
RSA126459
Agrostis densiflora
J. T. Howell
1946-6-30
22146
Marin
Rodeo Lagoon
Comment
RSA126468
Bromus maritimus
J. T. Howell
1946-6-30
22147
Marin
Rodeo Lagoon
Comment
RSA126472
Agrostis gigantea
J. T. Howell
1944-7-25
19644
Marin
[Unspecified]
Comment
RSA126546
Microseris douglasii subsp. douglasii
J. T. Howell
1941-5-25
16221
Marin
Potrero Meadow, Mt. Tamalpais
Comment
RSA127052
Sparganium erectum subsp. stoloniferum
J. T. Howell
1946-6-13
22028
Marin
The laguna, Chileno Valley.
Comment
RSA127057
Zannichellia palustris
J. T. Howell
1947-4-30
23113
Marin
Near Dillons Beach.
Comment
RSA127058
Ruppia maritima
J. T. Howell
1943-10-3
19334
Marin
Muir Beach.
Comment
RSA127062
Juncus mexicanus
J. T. Howell
1946-5-14
21835
Marin
Laurel Dell, Mt. Tamalpais.
Comment
RSA127067
Juncus kelloggii
J. T. Howell
1949-5-25
25337
Marin
Point Reyes Peninsula.
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
RSA127093
Polygonum fowleri
J. T. Howell
1949-5-22
25326
Marin
Salt marsh at head of Drakes Esters.
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
RSA127212
Ranunculus hebecarpus
J. T. Howell
1947-4-27
23087
Marin
Bald Mt. W of San Anselmo
Comment
RSA127247
Paspalum dilatatum
J. T. Howell
1945-8-5
21364
Marin
McKinnan's Landing near Stinson Beach
Comment
RSA127256
Athyrium filix-femina subsp. cyclosorum
J. T. Howell
1950-10-11
27467
Marin
Bear Valley
Comment
RSA127363
Amaranthus deflexus
J. T. Howell
1939-10-1
s.n.
Marin
Ross
Comment
RSA127364
Amaranthus californicus
J. T. Howell
1946-9-8
22998
Marin
Lake Lagunitas, Mount Tamalpais
Comment
RSA128313
Stellaria nitens
J. T. Howell
1947-4-27
23084
Marin
Bald Mt. W of San Anselmo
Comment
RSA128532
Cirsium occidentale var. occidentale
J. T. Howell
1941-5-18
16188
Marin
Stinson Beach
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
RSA128927
Pentachaeta alsinoides
J. T. Howell
1947-4-27
23099
Marin
Bald Mt. west of San Anselmo
Comment
RSA128937
Trifolium willdenovii
J. T. Howell
1947-5-4
23130
Marin
San Rafael Hills.
Comment
RSA128940
Trifolium gracilentum
J. T. Howell
1940-5-20
15507
Marin
Point Reyes
Comment
RSA128943
Centaurea calcitrapa
J. T. Howell
1939-9-3
15342
Marin
Near Novato
Comment
RSA128944
Aster radulinus
J. T. Howell
1946-9-15
23003
Marin
Near Potrero Meadows, Mt. Tamalpais
Comment
RSA128951
Agoseris heterophylla
J. T. Howell
1947-5-4
23125
Marin
San Rafael Hills.
Comment
RSA201419
Lathyrus tingitanus
J. T. Howell
1959-5-21
34595 A
Marin
Inverness
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
RSA216167
Carex densa
J. T. Howell
1966-4-30
41523
Marin
John Thomas Howell Botanical Garden, Tiburon.
Comment
RSA216172
Triglochin maritima
J. T. Howell
1957-9-15
32960
Marin
Larkspur
Comment
RSA216196
Senna multiglandulosa
J. T. Howell
1959-9-10
34607
Marin
Spontaneous in garden of Mrs. James Jenkins, Bolinas.
Comment Read comments Mar 9 2012
RSA220006
Carex praegracilis
J. T. Howell
1969-5-5
45566
Marin
Railroad yards, Tiburon.
Comment
RSA220025
Atriplex rosea
J. T. Howell
1969-6-30
45864
Marin
Waste ground bordering estuary of San Rafael Creek at Irwin Street bridge, San Rafael.
Comment
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
RSA31378
Epilobium brachycarpum
J. T. Howell
1943-9-5
19325
Marin
Mill Valley
Comment
RSA31379
Epilobium brachycarpum
J. T. Howell
1944-9-24
20745
Marin
Stinson Beach.
Comment
RSA31383
Epilobium ciliatum subsp. ciliatum
J. T. Howell
1942-7-12
17014
Marin
Cascade Canyon, Mill Valley
Comment
RSA31385
Clarkia gracilis subsp. gracilis
J. T. Howell
1946-5-19
21912
Marin
Meadows Club, Fairfax Hills
Comment
RSA31386
Clarkia gracilis subsp. gracilis
J. T. Howell
1946-5-12
21811
Marin
Edge of serpentine, Carson Ridge
Comment
RSA31411
Oenothera elata subsp. hookeri
J. T. Howell
1945-6-30
21254
Marin
Stinson 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
RSA32118
Trifolium barbigerum
J. T. Howell
1946-4-18
21648
Marin
Ignacio.
Comment
RSA32119
Triglochin concinna
J. T. Howell
1944-7-9
19711
Marin
South end of Tomales Bay
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
RSA32142
Lathyrus tingitanus
J. T. Howell
1945-7-1
21260
Marin
Tiburon.
Comment
RSA32479
Lagophylla ramosissima
J. T. Howell
1945-9-2
21453
Marin
San Rafael Hills.
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
RSA424277
Plantago truncata subsp. firma
J. T. Howell
1944-5-21
19500
Marin
Lagunitas Meadows north side of Mount Tamalpais.
244
Comment
RSA44356
Lathyrus torreyi
J. T. Howell
1940-5-12
15424
Marin
Between Little Carson and Carson Ridge.
Comment
RSA44361
Lathyrus vestitus subsp. bolanderi
J. T. Howell
1940-5-20
15516
Marin
Point Reyes
Comment
RSA46395
Polypodium californicum
J. T. Howell
1947-3-23
s.n.
Marin
Cataract Gulch. Mt. Tamalpais.
Comment
RSA471594
Heterotheca sessiliflora subsp. bolanderi
J. T. Howell
1933-7-30
11467
Marin
1.5 miles north of Olema
Comment
RSA51279
Erodium brachycarpum
J. T. Howell
1947-4-23
23075
Marin
East side of Drakes Estero, Point Reyes Peninsula.
Comment
RSA51939
Carex gynodynama
J. T. Howell
1947-5-25
23202
Marin
Willow Meadow, Mt. Tamalpais.
Comment
RSA51979
Carex ovalis
J. T. Howell
1946-6-2
21971
Marin
Potrero Meadow, Mt. Tamalpais.
Comment
RSA52003
Carex bolanderi
J. T. Howell
1944-6-4
19540
Marin
Inverness Ridge west of Inverness.
Comment
RSA52309
Carex cusickii
J. T. Howell
1942-7-12
17021
Marin
Potrero Meadows, Mt. Tamalpais.
Comment
RSA52310
Carex simulata
J. T. Howell
1946-6-20
22102
Marin
East side of Bolinas Lagoon.
Comment
RSA52311
Carex densa
J. T. Howell
1944-4-23
19401
Marin
Hills southeast of Kentfield.
Comment
RSA52332
Carex barbarae
J. T. Howell
1943-9-19
s.n.
Marin
Dry hills overlooking Escalle Salt Marsh.
Comment
RSA53839
Anagallis minima
J. T. Howell
1945-6-12
20945
Marin
Low moist place, Potrero Meadow. Mt. Tamalpais.
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
RSA69810
Centaurium muehlenbergii
J. T. Howell
1938-7-3
13944
Marin
At head of Lucas Valley.
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
RSA88332
Campanula griffinii
J. T. Howell
1946-7-7
22198
Marin
South of Barths Retreat, Mt. Tamalpais.
Comment
RSA91166
Lessingia hololeuca
John T. Howell
1926-9-9
2192
Marin
Baltimore Park
Comment
RSA91414
Trifolium albopurpureum
J. T. Howell
1933-4-30
11190
Marin
North side of Mt. Tamalpais.
Comment
RSA91547
Trifolium amoenum
J. T. Howell
1933-4-30
11200
Marin
Phoenix Lake.
Comment
RSA91663
Carex obnupta
J. T. Howell, J. W. Stacey
1936-6-7
s.n.
Marin
On road to Point Reyes.
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
RSA93385
Agrostis hendersonii
J. T. Howell
1947-4-23
23062
Marin
Drakes Estero West of Mt. Vision
Comment
RSA98706
Salix hookeriana
J. T. Howell
1952-6-3
28324
Marin
Near Ledum Swamp. Pt. Reyes Peninsula.
Comment
RSA992
Cupressus sargentii
J. T. Howell
1927-8-22
678
Marin
Rock Spring Trail, Mt Tamalpais.
548
Comment
SBBG28196
Eriogonum vimineum
J. T. Howell
1937-7-4
13088
Marin
Tiburon
Comment
SBBG41367
Cuscuta californica
J. T. Howell
1944-9-3
Marin
head of Cascade Cyn, Mt Tamalpais
Comment
SEINET10511142
Alopecurus howellii
John Thomas Howell
1946-5-4
Howell 21702
Marin
East of Auora School, at Sonoma County line,
Comment
SEINET10520183
Bromus carinatus
John Thomas Howell
1945-6-24
Howell s.n.
Marin
Mt. Tamalpais, Marin County.
Comment
SEINET10521053
Calamagrostis crassiglumis
John Thomas Howell
1947-6-4
Howell 1412
Marin
Point Reyes Peninsula. Swale near radio station.
Comment
SEINET10559298
Festuca idahoensis
John Thomas Howell
1947-4-4
Howell s.n.
Marin
Black Canyon,
Comment
SEINET10563839
Panicum huachucae var. fasciculatum
John Thomas Howell
1943-7-3
Howell 18247
Marin
Near Bootjack, Mount Tamalpais.
Comment
SEINET10597929
Stenotaphrum secundatum
John Thomas Howell
1945-7-22
Howell 21330
Marin
Clay slope and flat west of Mill Valley on road to Muir Woods.
Comment
SEINET10599404
Melica geyeri var. aristulata
John Thomas Howell
1947-5-18
Howell 23185
Marin
Shade of deep woods, Lagunitas Measdows,
Comment
SEINET10599674
Melica torreyana
John Thomas Howell
1939-5-14
Howell 14678
Marin
Serpentine area near Collier Spring, Mt. Tamalpais.
Comment
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
SEINET10604659
Vulpia octoflora var. glauca
John Thomas Howell
1946-5-12
Howell s.n.
Marin
Chaparral burn, Carson Ridge
Comment
SEINET10605756
Poa howellii
John Thomas Howell
1939-5-14
Howell 14674
Marin
Berry Trail, Mt. Tamalpais.
Comment
SEINET10610160
Leymus X multiflorus
John Thomas Howell
1943-9-5
Howell 19314
Marin
Between Tamalpais Valley and Tamalpais Hig School.
Comment
SEINET10792376
Bromus maritimus
John Thomas Howell
1939-6-4
Howell 14715
Marin
Point Reyes lighthouse.
Comment
SEINET10806860
Agrostis
John Thomas Howell
1947-4-23
Howell 23062
Marin
Drakes Estero west of Mt. Vision, Pt. Reyes Peninsula.
Comment
SEINET10868861
Agrostis tenuis
John Thomas Howell
1945-6-12
Howell 20955
Marin
Near radis station, Point Reyes.
Comment
SEINET10893344
Vulpia microstachys var. pauciflora
John Thomas Howell
1943-5-22
Howell 18140
Marin
Fairfax hills.
Comment
SEINET10900463
Deschampsia danthonioides
John Thomas Howell
1943-5-15
Howell 18100
Marin
Tiburon Peninsula.
Comment
SEINET10920988
Poa kelloggii
John Thomas Howell
1950-5-18
Howell 26311
Marin
Lagunitas Creek near Camp Taylor, Marin County.
Comment
SEINET10925826
Leymus vancouverensis
John Thomas Howell
1945-6-30
Howell 21251
Marin
Stinson Beach.
Comment
SEINET10926504
Polypogon interruptus
John Thomas Howell
1939-5-21
Howell s.n.
Marin
W. Tburan, Mt. Tamalpais.
Comment
SEINET10959759
Scribneria bolanderi
John Thomas Howell
1945-5-27
Howell 20879
Marin
Serpentine area above Bootjack, Mt. Tamalpais, .
Comment
SEINET10959970
Parapholis incurva
John Thomas Howell
1945-5-6
Howell 20816
Marin
Edge of salt marsh just above high tide, San Rafael.
Comment
SEINET10966937
Bromus macrostachys
John Thomas Howell
1947-4-27
Howell 23096
Marin
Steep grassy slope in clay soil, Bald Mt. west of San Anselmo.
Comment
SEINET10968036
Agrostis hallii
John Thomas Howell
1947-6-18
Howell 23284
Marin
North of Dillons Beach.
Comment
SEINET11071685
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
SEINET12896494
Lupinus tidestromii var. layneae
J. T. Howell
1939-1
14729
Marin
Point Reyes Peninsula
Comment
SEINET13945881
Ceanothus foliosus
John Thomas Howell
1948-1
24298
Marin
Upper part of Cascade Canyon, Mt. Tamalpais
Comment
SEINET199893
Agrostis diegoensis
John Thomas Howell
1937-5-21
Marin
S. Tiburon
Comment
SEINET199895
Trisetum canescens
John Thomas Howell
1949-6-25
Marin
Camp Taylor.
Comment
SEINET199901
Agrostis blasdalei
John Thomas Howell
1947-5-14
23150
Marin
Monterey Series Drakes Estero West-northwest of Mt Vison.
Comment
SEINET199905
Agrostis diegoensis
John Thomas Howell
1943-7-11
18286
Marin
Near Bootjack Mt. Tamalpais.
Comment
SEINET199929
Micropus amphibolus
J. T. Howell
1943-5-2
17938
Marin
Canyon of San Anselmo Creek
Comment
SEINET3404244
Triglochin concinna
John Thomas Howell
1945-6-30
21256
Marin
Stinson Beach, Salt marsh bordering Bolinas Lagoon
Comment
SEINET3560013
Lotus strigosus
John Thomas Howell
1949-5-16
21869
Marin
Angel Island, south side
Comment
SEINET5507014
Cirsium andrewsii
John Thomas Howell
1933-7-30
11478
Marin
near summit of road from Inverness to Pt. Reyes
Comment
SEINET5507029
Cirsium andrewsii
John Thomas Howell
1939-7-2
14818
Marin
Elk Valley, East of Tennessee Cove
Comment
SEINET7483605
Carex mendocinensis
John Thomas Howell, J. V. Stacey
1936-1
12658
Marin
near Bootjack, Mt. Tamalpais
Comment
SEINET7559870
Carex globosa
John Thomas Howell
1942-4-19
16946
Marin
Carson Ridge, Mt Tamalpais.
Comment
SEINET7559872
Carex globosa
John Thomas Howell
1952-5-30
28318
Marin
Potrero Meadow, Mt. Tamalpais.
Comment
SEINET7559896
Carex globosa
John Thomas Howell
1933-4-30
11193
Marin
North side of Mt. Tamalpais.
Comment
SEINET7614631
Anthoxanthum occidentale
John Thomas Howell
1945-1
20781
Marin
Fish Grade, Mt. Tamalpais
Comment
SEINET7847007
Carex globosa
J. T. Howell
1944-4-2
19368 A
Marin
SE of Laurel Del. Mount Tamalpais
Comment
UC1008735
Navarretia heterodoxa
John Thomas Howell
1942-9-13
17866
Marin
above San Anselmo Canyon (trail to Carson Ridge)
Comment
UC1106078
Bolboschoenus maritimus
John Thomas Howell
1945-8-19
21438
Marin
At head of Drakes Bay.
Comment
UC1106295
Elodea canadensis
John Thomas Howell
1943-9-5
19322 A
Marin
just s Mill Valley
Comment
UC1106299
Juncus kelloggii
John Thomas Howell
1949-5-25
25337
Marin
Point Reyes Peninsula
Comment
UC1106305
Myriophyllum hippuroides
John Thomas Howell
1946-6-20
22111
Marin
Pond 2 mi S of Olema.
Comment
UC1176776
Claytonia exigua subsp. exigua
John Thomas Howell
1946-5-12
Marin
above Little Carson
Comment
UC1176915
Polygonum douglasii subsp. spergulariiforme
John Thomas Howell
1947-9-6
24182
Marin
e Dillons Beach
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
UC1177279
Stephanomeria virgata subsp. pleurocarpa
John Thomas Howell
1946-9-22
23029
Marin
Bald Mt.
Comment
UC1177310
Helenium bigelovii
John Thomas Howell
1946-5-30
21964
Marin
w of Little Carson Falls
Comment
UC1177510
Polystichum californicum
John Thomas Howell
1948-5-22
24309
Marin
Camp Tucker Mt. Tamalpais
Comment
UC1177514
Isoetes howellii
John Thomas Howell
1947-5-25
23204
Marin
Mt. Tamalpais, Willow Meadow
Comment
UC421706
Ambrosia psilostachya
John Thomas Howell
2189
Marin
near San Rafael
Comment
UC672106
Fritillaria affinis
John Thomas Howell
1930-3-9
4551
Marin
Point Reyes
152
Comment
UC750712
Triglochin maritima
John Thomas Howell
1945-6-30
21256
Marin
marsh bordering Bolinas Lagoon; Stinson Beach, Bolinas Lagoon
Comment
UCD103058
Erodium botrys
John Thomas Howell
1947-4-13
23058
Marin
Tiburon Peninsula.
Comment
UCD103128
Erodium brachycarpum
John Thomas Howell
1947-5-18
23182
Marin
East end Alpine Lake.
Comment
UCD103497
Geranium core-core
John Thomas Howell
1944-7-23
19843
Marin
San Rafael.
Comment
UCD106690
Lathyrus tingitanus
John Thomas Howell
1945-7-1
21260
Marin
Tiburon.
Comment
UCD108781
Vicia benghalensis
John Thomas Howell
1945-5-20
s.n.
Marin
Tiburon.
Comment
UCD108782
Vicia benghalensis
John Thomas Howell
1945-5-20
s.n.
Marin
Tiburon.
Comment
UCD114951
Cakile maritima
John Thomas Howell
1943-10-3
19333
Marin
Above high tide line, Muir Beach.
Comment
UCD119621
Amsinckia intermedia
John Thomas Howell
1945-5-13
20863
Marin
Deer Park near Fairfax.
Comment
UCD119679
Amsinckia intermedia
John Thomas Howell
1933-4-30
11199
Marin
Phoenix Lake.
Comment
UCD119792
Cryptantha flaccida
John Thomas Howell
1947-4-27
23100
Marin
Bald Mountain, west of San Anselmo.
Comment
UCD120595
Phacelia imbricata
John Thomas Howell
1943-5-22
18134
Marin
Fairfax Hills.
Comment
UCD120774
Plagiobothrys bracteatus
John Thomas Howell
1941-6-10
16274
Marin
Near Black Point.
Comment
UCD121817
Galium murale
John Thomas Howell
1947-7-6
23324
Marin
Laurel Dell, Mt. Tamalpais.
Comment
UCD124411
Plantago elongata
John Thomas Howell
1947-4-30
23109
Marin
Dillons Beach.
Comment
UCD125196
Monardella purpurea
John Thomas Howell
1946-6-23
22115
Marin
Carson Ridge on burn.
Comment
UCD126149
Calystegia occidentalis
John Thomas Howell
1947-5-8
23137
Marin
Sausalito.
Comment
UCD126371
Dichondra donelliana
John Thomas Howell
1947-5-8
23147
Marin
Sausalito.
Comment
UCD133520
Lactuca saligna
John Thomas Howell
1943-9-25
19324
Marin
southern part of Mill Valley.
7
Comment
UCD133981
Leontodon saxatilis
John Thomas Howell
1945-7-29
21333
Marin
Bolinas.
Comment
UCD135626
Senecio minimus
John Thomas Howell
1944-6-25
s.n.
Marin
near Chinese Camp.
Comment
UCD137543
Plectritis congesta subsp. brachystemon
John Thomas Howell
1947-5-18
23184
Marin
Lagunitas Meadows.
Comment
UCD138566
Allium neapolitanum
John Thomas Howell
1958-8-11
33015
Marin
San Rafael.
Comment
UCD140239
Carex cusickii
John Thomas Howell
1958-6-28
33641
Marin
Mt. Tamalpais.
Comment
UCD142600
Euphorbia maculata
John Thomas Howell
1954-9-23
s.n.
Marin
Ross, M. H. Esberg Garden.
Comment
UCD142684
Euphorbia prostrata
John Thomas Howell
1942-7-6
23328
Marin
Mill Valley.
Comment
UCD51983
Agrostis densiflora
John Thomas Howell
1945-6-3
20922
Marin
Twin Beaches.
Comment
UCD72557
Heterocodon rariflorum
John Thomas Howell
1940-5-12
15421
Marin
Lagunitas Creek.
Comment
UCD97701
Atriplex semibaccata
John Thomas Howell
1943-11-21
19338
Marin
west of San Quentin, near Greenbrae.
Comment
UCD97704
Atriplex semibaccata
John Thomas Howell
1943-11-21
19338
Marin
west of San Quentin, near Greenbrae.
Comment
UCD98222
Lychnis coronaria
John Thomas Howell
1953-7-26
29125
Marin
above Camp Eastwood, Mt. Tamalpais.
Comment