544 BANUNCULACEAE 



Gold Mt., Nev., PurpiiS 5991 ; Karshaw, Meailow Valley Wash, Nev., Gooding GSO ; Virgin 

 Mts., Ariz., Gooding 2135. 



Refs. — Ranunculus andersonii Gray, Proc. Am. Acad. 7:327 (1868), type loc. Blind 

 Springs Mt., Mono Co., Anderson. Oxygraphis andersoidi Freyn, Flora 70:140 (1887). BecTc- 

 wit)iia mistinae Jepson, Erythea, 6:97 (1898). B. andersonii Jepson, I.e. 99. 



Ranunculus juniperinus Jones is a closely related Utah species, differing from E. 

 andersonii in its whitish petals and non-inflated achenes. 



23. R. cymbalaria Pursh. Desert Crowfoot. Perennial by whip-like or 

 thread-like stolons wliich root at intervals of IV-; to 21/2 inches and produce tufts 

 of leaves and scapes; scapes ly^ to 8 inches higli, 1 to 3-tlowered ; leaves ronnd- 

 ovate to reniform, cordate at base, remotely notched, 4 to 10 lines long; flowers 

 4 to 6 lines broad; petals 5 to 9 (or 12), oblong, shorter than or little exceeding 

 the sepals; receptacle oblong-eonic, obtuse, 2 to 6 lines higli ; achenes with striate 

 sides. 



Moist alkaline soils in river bottoms or desert lake beds or abont desert springs : 

 Southern California to the Mohave Desert and the upper San Joaquin Valley, 

 and north along the eastern side of the Sierra Nevada through Inyo and Lassen 

 cos. to Modoc Co. Widely distributed in North and Soutli America and Asia. 

 May-July. 



Locs. — Los Angeles River, Braimton 564; Swarthout Canon, Hall 1526; San Bernardino, 

 Parish; Barstow, Jepson 4796; Bakersfield, Davy 1699; Fresno, Eisen; Templeton Mt., Jepson 

 4974 (dwarf form); Owens Lake, Jepson 5114; White Mts., Jepson 7228 (Silver Caiion), 

 7272 (North Fo!-k Crooked Creek); Beckwith Pass, Jepson 7788; Honey Lake Valley, Dai'y 

 3370; Alturas, Jepson 7928; Ft. Bidwell, Manning 141. 



Refs. — Ranunculus ctmbalarh Pursh, Fl. 392 (1814), type loe. Onondaga, New York; 

 Merritt, Erj-thea, 4:102 (1896). HaJcrpestes cymbalaria Greene, Pitt. 4:208 (1900). The 

 representation of this species in the Rocky Mt. and Pacific Coast region is set aside by 

 Fernald as var. saiimontanus (Bhod. 16:162, — 1914), but our California material seems 

 seditious towards the proposed segregation. 



24. R. aquatilis L. Water Buttercup. Perennial submersed aquatic, 

 only the tips of the slender stems and the flowers resting on the surface of the 

 water ; leaves all many times dissected into filiform or cajiillary divisions, rarely 

 some floating leaves with 3 broad lobes 2 or 3-toothed at apex ; flowers 3 to 5 

 (or 8) lines broad; sepals deciduous; styles subulate, rai'ely pensisting; recep- 

 tacle often hairy ;' achenes transversely rugose, commonly hispidulous, about 11 

 to 18 in a rather compact round head. 



Ponds, vernal pools,, and slow streams in the valleys and mountains: Coast 

 Kanges; Sierra Nevada; Southern California. It is variable, and being rather 

 common and nearly cosmopolitan, a large number of forms have received specific 

 names. Apr. 



Locs. — Coast Ranges: Sisson, Jepson; Calistoga, Jepson; Oak Knoll, Napa Valley, Jepson; 

 Berkeley, Jepson; Milpitas, B. J. Smith. Sierra Nevada: Modoc Co., M. S. Baker; Clover 

 Creek, Genesee Valley, Jepson 8023; Bear Valley, Nevada Co., Jepson; Hope Valley, North 

 Fork Carson River, Jepson. 8125; Phoenix Lake, Sonora, A. L. Grant; Sequoia (Crockers), 

 Jepson 4639; Fish Cam]), Mariposa Co., Jepson 8395; Volcano Creek, Jepson 953. Southern 

 California: Cedar Caiion, San Diego Co., Forbes. 



Var. trichophyUus Gr.ay. Green Eel-grass. Leaves rather short and rigid, not collapsing 

 on withdrawal from tlie water. — Widely distributed. A'ar. bakeri Jepson n. comli. Leaves 

 small, sparsely br.auclied, the rigid segments divaricate. — Santa Clara Co. Var. peduncularis 

 Jepson n. comb. Peduncles very stout, falcate-curved, 1 inch long (e.x. char.). — Lake Co. 

 Var. hispidulus Drew. Lower ba.se of tlie emersed leaves, and the petioles and stipules hispid. — 

 Humboldt Co. 



Refs. — RANUhMULUS aquatilis L. Sp. PI. 556 (1753), type European; Jepson, Fl W. 

 Mid. Cal. 202 (1901). Batrachium aqwitile Wimm. PI. Schles. 8 (1841). Var. trichciphyllus 

 Gray, Man. ed. 5, 40 (1867). Var. bakeri Jepson. Batrachium bakeri Greene, Leaflets, 1:95 

 (1904), type loe. Coast Range hills near Stanford, C. F. Baker 786. Var. peduncularis Jepson. 

 Batraohium pedunevhirc Greene, I.e., type loc Lakeport, C. F. Baker 3062. Var. HiSPSrouLUS 

 Drew, Bull. Torr. Club, 16:150 (1889)", type loc. Jarnigan's, Mad River, Drew. 



