544 



RANUNCULACEAE 



Gold Mt., Nev., Purpus 5991; Karshaw, Meadow Valley Wash, Nev., Gooding 630; Virgin 

 Mts., Ariz., Gooding 2135. 



Eefs. EANUNCULUS ANDERSONII Gray, Proc. Am. Aead. 7:327 (1868), type loc. Blind 

 Springs Mt., Mono Co., Anderson. OxygrapMs andersonii Freyn, Flora 70:140 (1887). Beck- 

 withia austinae Jepson, Erythea, 6:97 (1898). B. andersonii Jepson, l.e. 99. 



EANUNCULUS JUNIPERINUS Jones is a closely related Utah species, differing from R. 

 andersonii in its whitish petals and non-inflated achenes. 



23. R. cymbalaria Pursh. DESERT CROWFOOT. Perennial by whip-like or 

 thread-like stolons which root at intervals of V/ 2 to 2% inches and produce tufts 

 of leaves and scapes ; scapes l 1 /^ to 8 inches high, 1 to 3-flowered ; leaves round- 

 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-conic, obtuse, 2 to 6 lines high ; achenes with striate 

 sides. 



Moist alkaline soils in river bottoms or desert lake beds or about 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 South America and Asia. 

 May-July. 



Locs. Los Angeles Eiver, Braunton 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 Canon), 

 7272 (North Fork Crooked Creek); Beckwith Pass, Jepson 7788; Honey Lake Valley, Davy 

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



Eefs. EANUNCULUS CYMBALARIA Pursh, Fl. 392 (1814), type loc. Onondaga, New York; 

 Merritt, Erythea, 4:102 (1896). Halerpestes cymbalaria Greene, Pitt. 4:208 (1900). The 

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

 Fernald as var. saximontanus (Ehod. 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 capillary 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, rarely persisting; 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 

 Ranges; 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 Eanges: Sisson, Jepson; Calistoga, Jepson; Oak Knoll, Napa Valley, Jepson; 

 Berkeley, Jepson; Milpitas, E. 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 Eiver, Jepson 8125; Phoenix Lake, Sonora, A. L. Grant; Sequoia (Crockers), 

 Jepson 4639; Fish Camp, Mariposa Co., Jepson 8395; Volcano Creek, Jepson 953. Southern 

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



Var. trichophyllus Gray. GREEN EEL-GRASS. Leaves rather short and rigid, not collapsing 

 on withdrawal from the water. Widely distributed. Var. bakeri Jepson n. comb. Leaves 

 small, sparsely branched, the rigid segments divaricate. Santa Clara Co. Var. peduncularis 

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

 Var. hispidulus Drew. Lower base of the emersed leaves, and the petioles and stipules hispid. 

 Humboldt Co. 



Eefs. EANUNCULUS AQUATILIS L. Sp. PI. 556 (1753), type European; Jepson, Fl. W. 

 Mid. Cal. 202 (1901). Batrachium aquatile Wimm. Fl. Schles. 8 (1841). Var. TRICHOPHYLLUS 

 Gray, Man. ed. 5, 40 (1857). Var. BAKERI Jepson, Batrachium bakeri Greene, Leaflets, 1:95 

 (1904), type loc. Coast Eange hills near Stanford, C. F. Baker 786. Var. PEDUNCULARIS Jepson. 

 Batraohium pedunculare Greene, I.e., type loc. Lakeport, C. F. Baker 3062. Var. HISPSTOULUS 

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



