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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
CHSC28129
Myosurus sessilis
K. R. Stern
1979-5-5
Colusa
Ca. 0.25 mi w of intersection of Hwy 20 and Int. Hwy 5. Vernal pool on n side of road, ca. 0.5 mi nw of Williams.
152
Comment
CHSC33701
Myosurus sessilis
L. Ahart
1981-4-6
2747
Butte
SE of Gray Lodge Waterfowl Mgmt Area HQ, ca. 8 mi sw of Gridley.
35
Comment
CHSC41086
Myosurus sessilis
Pauleen Broyles
1983-4-9
877
Tehama
The Nature Conservancy Vina Plains Preserve.
62
Comment
CHSC61173
Myosurus sessilis
Vernon H. Oswald
1993-5-5
5340
Glenn
Sacramento National Wildlife Refuge. Main unit of refuge located ca. 7 mi S of Willows, W side of Cell 2, Tract 28, south of Norman Rd.
25
Comment
CHSC66967
Myosurus sessilis
James D. Jokerst
1993-5-11
3960
Merced
Vernal pool complex S of Bear Creek, E of San Joaquin River, W of East Side Canal. San Joaquin Valley.
28
Comment
CHSC67849
Myosurus sessilis
James D. Jokerst
1986-4-15
2628
Alameda
Livermore Transmission Line Survey, 1 mi NW of Tracy Substation, ca. 0.33 mi E of Brauns Rd., S of fence along centerline of section. Vernal pools and meadows.
Comment
CHSC69649
Myosurus sessilis
James D. Jokerst
1989-3-28
3059
Contra Costa
NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore.
Comment
CHSC71321
Myosurus sessilis
Vernon H. Oswald; Lowell Ahart
1998-6-11
9222
Siskiyou
Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. Along the edge of a vernal pool.
1295
Comment
JEPS17886
Myosurus sessilis
Rimo Bacigalupi with G. T. Robbins
1956-3-26
5532
Contra Costa
about 2 1/2 mi s Byron (just s of S.P.R.R. crossing on rd. to Bethany, near head of Italian Slough)
6
Comment
JEPS18455
Myosurus sessilis
Rimo Bacigalupi with S. Galen Smith and Don Stone
1957-4-17
5852
Stanislaus
8.5 mi w Modesto (0.5 mi n of Maze Blvd., 0.5 mi w of Gates Rd., Hetch-Hetchy power line maintenance road, on Mapes Ranch); Mapes Ranch
11
Comment
JEPS603
Myosurus sessilis
W. L. Jepson
1892-3-24
Solano
Little Oak Farm
Comment
JEPS604
Myosurus sessilis
W. L. Jepson
May 2 1891-May 6 1891
Solano
Vacaville
Comment
JEPS65190
Myosurus sessilis
L. R. Heckard
1971-4-15
2477
Contra Costa
S of Byron (intersection of Holey Road)
Comment
JEPS73851
Myosurus sessilis
L. R. Heckard
1974-4-19
3644
Merced
0.5 mi n Salt Slough; San Luis Island
Comment
JEPS80670
Myosurus sessilis
L. R. Heckard with Dave and Mary Ann Showers
1981-5-30
5520
Yolo
3 mi se Woodland (s of Road 25 and e of Road 103)
Comment
JEPS93855
Myosurus sessilis
Vernon H. Oswald and Lowell Ahart
1998-6-11
9222
Siskiyou
5 mi n of Macdoel (Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Road and Highway 97); Butte Valley National Grassland
1295
Comment
JEPS9719
Myosurus sessilis
W. L. Jepson
1932-3-31
16116
San Benito
Tres Pinos
156
Comment
OBI73355
Myosurus sessilis
David J. Keil, with Lynne Dee (Oyler) Althouse and Meg Perry
2010-4-8
30689
San Luis Obispo
Carrizo Plain Southwest of Carissa Plains Elementary School, south of Highway 58
Comment
OBI81118
Myosurus sessilis
Meg Perry
2010-4-8
11 -Oct
San Luis Obispo
Carrizo Plain north of California Valley
614
Comment
RSA10403
Myosurus sessilis
Carl B. Wolf
1928-5-8
2150
Yolo
Sacramento Valley; 12 miles north of Dixon.
Comment
RSA10404
Myosurus sessilis
Carl B. Wolf
1928-5-8
2149
Yolo
Sacramento Valley; 12 miles north of Dixon.
Comment
RSA184970
Myosurus sessilis
L. S. Rose
1966-3-29
66024
Tulare
4.5 miles ENE of Pixley
84
Comment
UC1026498
Myosurus sessilis
Alice Eastwood, John Thomas Howell
1938-4-18
5102
Fresno
near South Dos Palos
Comment
UC1026499
Myosurus sessilis
John Thomas Howell
1931-3-29
66014
San Benito
1.5 mi se San Benito
Comment
UC1028302
Myosurus sessilis
George B. Rossbach
1955-4-9
271
Colusa
3 mi e Maxwell (Sacramento Valley); Sacramento Valley
18
Comment
UC1101329
Myosurus sessilis
Herbert L. Mason
1952-4-26
14272
Contra Costa
3.5 mi s of Byron
Comment
UC1101330
Myosurus sessilis
Herbert L. Mason
1952-4-14
14263
Contra Costa
3.5 mi s of Byron
Comment
UC1101331
Myosurus sessilis
Herbert L. Mason
1952-4-26
14269
Contra Costa
3.5 mi s of Byron
Comment
UC1101332
Myosurus sessilis
Herbert L. Mason
1952-4-26
14270
Contra Costa
3.5 mi s of Byron
Comment
UC1101333
Myosurus sessilis
Herbert L. Mason
1952-4-14
14264
Contra Costa
3.5 mi s of Byron
Comment
UC1101348
Myosurus sessilis
Herbert L. Mason
1953-4-5
14510 b
Colusa
3 mi e of Maxwell
Comment
UC1101351
Myosurus sessilis
Herbert L. Mason
1953-4-5
14508
Colusa
3 mi e of Maxwell
Comment
UC1101359
Myosurus sessilis
Herbert L. Mason
1952-3-13
14200
Contra Costa
3.3 mi s Bryon
Comment
UC1114812
Myosurus sessilis
Donald E. Stone
Dec 8 1956-Apr 13 1957
26 -7
Colusa
3 mi e of the city of Maxwell (on the Maxwell Road); Maxwell Road
Comment
UC1114813
Myosurus sessilis
Donald E. Stone
1956-6
1- 8 -1
Colusa
3 mi e of the city of Maxwell (on the Maxwell Road); Maxwell Road
Comment
UC131184
Myosurus sessilis
Katharine Brandegee
1909-5-1
Contra Costa
bet. Marsh Creek and Antioch (along the road)
Comment
UC1731502
Myosurus sessilis
Dean W. Taylor
1993-4-23
13366 B
Yolo
Sacramento Valley, nw of junction Road 102 and Road 25 Sacramento Valley
9
Comment
UC1731503
Myosurus sessilis
Dean W. Taylor
1992-4-15
12383
Merced
10 air mi sw of Los Banos (0.4 mi n of junction of Arburua Road and Gasten Bide Road, Carusalito Flat, San Joaquin Valley); San Joaquin Valley, Carusalito Flat
76
Comment
UC1736748
Myosurus sessilis
Dean W. Taylor
1990-11-7
11588
Alameda
Livermore Valley, Springtown wetland area (North of Interstate 580), on upper end of Arroyo Las Positas
152
Comment
UC1736749
Myosurus sessilis
Dean W. Taylor
1991-5-9
11688
Tehama
Stony Creek, ca. 300 meters north of the creek along the right-of-way of electrical transmission lines (PG&E Pit-Vaca line)
112
Comment
UC1736750
Myosurus sessilis
Dean W. Taylor
1990-11-7
11587
Alameda
Livermore Valley, Springtown wetland area (North of Interstate 580), on upper end of Arroyo Las Positas
152
Comment
UC1738076
Myosurus sessilis
H. L. Mason
1957-4-13
14510 B-7
Colusa
3 mi E of Maxwell (on Maxwell Rd.)
Comment
UC1738094
Myosurus sessilis
D. E. Stone
1957-5-17
60 C
Stanislaus
ca. 9 mi W of Modesto (on Paradise Road, 1.1 mile S of Maze Boulevard (State 132))
Comment
UC1738117
Myosurus sessilis
D. E. Stone
1955-8-26
8 -2
Contra Costa
3 mi S of Byron ( on road to Herdlyn)
Comment
UC1738120
Myosurus sessilis
D. E. Stone
1956-5-25
8 -31
Contra Costa
3 mi S of Byron ( on road to Herdlyn)
Comment
UC1738121
Myosurus sessilis
D. E. Stone
1955-8-29
8 -31
Contra Costa
3 mi S of Byron (on road to Herdlyn)
Comment
UC1738122
Myosurus sessilis
D. E. Stone
1955-8-26
8 -24
Contra Costa
on the road to Herdlyn, 3 mi S of Byron
Comment
UC1738124
Myosurus sessilis
D. E. Stone
1956-10-9
1- 8 -1
Colusa
3 mi E of Maxwell ( on Maxwell Rd.)
Comment
UC1953253
Myosurus sessilis
David Keil with Lynne Dee Althouse and Meg Perry
2010-4-8
30689
San Luis Obispo
Carrizo Plain Southwest of of Carrizo Plains Elementary School, south of Highway 58.
Comment
UC2031404
Myosurus sessilis
Barbara Ertter with Lynne Hosley
1991-6-23
10151
Alameda
Springtown wetlands N Livermore, N of Hartford Ave. at end of Bluebell Drive
Comment
UC596471
Myosurus sessilis
R. F. Hoover
1938-4-3
3085
Stanislaus
10 m w Modesto
Comment
UC766135
Myosurus sessilis
R. F. Hoover
1937-3-25
1650
Merced
9 mi w Los Banos
Comment
UC767001
Myosurus sessilis
R. F. Hoover
1938-4-13
3078
Stanislaus
7 mi w Modesto
Comment
UC767002
Myosurus sessilis
R. F. Hoover
1940-4-27
4366
San Joaquin
River Road near San Joaquin City
Comment
UC767507
Myosurus sessilis
Robert F. Hoover
1935-3-28
387
Stanislaus
10 mi w Modesto
Comment
UC767675
Myosurus sessilis
R. F. Hoover
1938-4-13
3085
Stanislaus
10 mi w Modesto
Comment
UC917100
Myosurus sessilis
K. J. and J. M. Tucker
1950-3-26
1926
Yolo
3 mi nw Davis (beside Highway 99W)
Comment
UC9321
Myosurus sessilis
Edw. L. Greene
1892-5-1
Solano
near Vacaville
Comment
UC9322
Myosurus sessilis
Willis L. Jepson
1891-1
Solano
Little Oak Mtn
Comment
UC9323
Myosurus sessilis
J. Burtt Davy
1893-11-13
San Joaquin
Stockton
Comment
UCD21423
Myosurus sessilis
J. Shepard
2002-4-18
519
Yolo
Yolo County Grasslands Park: East of Davis, from intersection of I-80 and Mace Blvd., 3.5 mi. south on Mace Blvd. (County Road 104), thence east along unpaved entrance road to Department of Defense fence. South to northern-most large vernal pool, 1 meter west of fence.
12
Comment
UCD36115
Myosurus sessilis
Beecher Crampton
1952-11-7
915
Yolo
Yolo County, 3 miles northwest of city of Davis.
Comment
UCD36116
Myosurus sessilis
Beecher Crampton
1952-11-7
916
Yolo
Yolo County, 3 miles northwest of city of Davis.
Comment
UCD55515
Myosurus sessilis
J. Shepard; E. Dean, B. Rice, P. and R. Unger, B. Salvia
2004-3-28
656
Yolo
Yolo County Grasslands Park: East of Davis, from intersection of I-80 and Mace Blvd., 3.5 mi. south on Mace Blvd. (County Road 104), thence east .4 mi. along unpaved entrance road, then .2 mi. south.
12
Comment
UCD63226
Myosurus sessilis
Ellen Dean; K. Mawdsley
2008-4-16
4803
Yolo
southeast side of Woodland, Woodland Regional Park, just south of the intersection of County Roads 102 and 25, east side of road 102. Parking area between rodeo corrals and area just south of reservoir.
0
Comment
UCD96286
Myosurus sessilis
Beecher Crampton
1952-11-7
916
Yolo
Yolo County, 3 miles northwest of city of Davis.
Comment
UCR47950
Myosurus sessilis
R. Robichaux
1975-4-20
29
Yolo
Culltivated field southwest of CA Hwy 16 and 78 intersection, 0.5 mi south of Brooks
91
Comment
CDA24288
Myosurus sessilis
L. Thomas, J. Akana
1978-3-28
Tulare
1 1/2 miles south of Highway 137, along Outside Creek, west of Lindsay.
0
Comment
JEPS602
Myosurus sessilis
Willis L. Jepson
1893-9-30
Solano
Wilson's Creek Vacaville
Comment
POM312426
Myosurus sessilis
H. L. Mason
1952-4-14
14263
Contra Costa
3.5 miles S of Byron.
Comment
POM312427
Myosurus sessilis
H. L. Mason
1952-4-26
14269
Contra Costa
Vernal Pool, 3.5 miles S of Byron
Comment
POM312428
Myosurus sessilis
H. L. Mason
1952-4-26
14270
Contra Costa
Vernal Pool, 3.5 miles S of Byron
Comment
POM312437
Myosurus sessilis
H. L. Mason
1953-4-5
14510
Colusa
3 miles east of Maxwell
Comment
POM312445
Myosurus sessilis
H. L. Mason
1953-4-5
14508
Colusa
3 miles east of Maxwell
Comment
RSA62230
Myosurus sessilis
J. T. Howell
1931-3-29
6014
San Benito
1.5 miles SE of San Benito
Comment
RSA62231
Myosurus sessilis
Alice Eastwood, John T. Howell
1938-4-18
5102
Fresno
Near Santa Dos Palos.
Comment
RSA62232
Myosurus sessilis
Alice Eastwood, John T. Howell
1938-5-3
5303
San Benito
Near Hollister.
Comment
RSA62233
Myosurus sessilis
Alice Eastwood, John T. Howell
1938-5-3
5302
San Benito
Near Hollister.
Comment
RSA82769
Myosurus sessilis
K. J. Tucker, J. M. Tucker
1950-3-26
s.n.
Yolo
Yolo County: beside Hwy 99W, 3 miles NW of Davis
Comment
RSA97527
Myosurus sessilis
Beecher Crampton
1952-11-7
916
Yolo
3 miles northwest of city of Davis.
Comment
RSA97570
Myosurus sessilis
Beecher Crampton
1952-11-7
915
Yolo
3 miles northwest of city of Davis.
Comment
SEINET12087220
Myosurus sessilis
E. L. Greene
1892-1
s.n.
Unknown
near Vacaville
Comment
UC1112273
Myosurus sessilis
S. Galen Smith with J. Anderson
1957-6-5
2951
Solano
0.2 mi e Suisun (city limits sign on highway 12 to Rio Vista); Sacramento Valley
7
Comment
UC1738100
Myosurus sessilis
D. E. Stone
1957-6-14
67 A
Solano
On State 12, 3.0 mi E of Union and Texas Street Suisun City
Comment
UCD21058
Myosurus sessilis
Vernal Pool Team 2002; Carol Witham and Jennifer Buck
2002-4-9
239
Merced
Along the west side of Highway 165. Grassland State Park site, UTMs: 10S0690570; 4125364.
24
Comment
UCD21059
Myosurus sessilis
Vernal Pool Team 2002; Carol Witham and Jennifer Buck
2002-4-9
240
Merced
Along the west side of Highway 165. Grassland State Park site, UTMs: 10S0690570; 4125364.
24
Comment
UCD21082
Myosurus sessilis
Vernal Pool Team 2002; Carol Witham and Jennifer Buck
2002-4-11
258
Merced
Approximately 5 miles E, NE of the town of Gustine, N of Mud Slough. Kesterson Wildlife Refuge site. Pool # KES003. UTMs: 10S0685764; 4127176.
23
Comment
UCD21083
Myosurus sessilis
Vernal Pool Team 2002; Carol Witham and Jennifer Buck
2002-4-11
259
Merced
Approximately 5 miles E, NE of the town of Gustine, N of Mud Slough. Kesterson Wildlife Refuge site. Pool # KES003. UTMs: 10S0685764; 4127176.
23
Comment
UCD96287
Myosurus sessilis
H. L. Mason
1952-4-14
14264
Contra Costa
3.5 miles south of Byron.
Comment
UCD96288
Myosurus sessilis
H. L. Mason
1952-4-26
14269
Contra Costa
3.5 miles south of Byron.
Comment
UCD96289
Myosurus sessilis
H. L. Mason
1953-4-5
14508
Colusa
Three miles east of Maxwell.
Comment
UCD96290
Myosurus sessilis
D. E. Stone
1957-6-14
67 A
Solano
On State 12, 3.0 miles east of Union and Texas Street, in Suisun City.
Comment
UCD96291
Myosurus sessilis
R. Tofsrud
1947-4-24
s.n.
Yolo
North of Davis.
Comment
UCD96292
Myosurus sessilis
J. M. Tucker; K. J. Tucker
1950-3-26
1926
Yolo
Beside Highway 99W, about 3 miles northwest of Davis.
Comment