298 RANUNCULACE^. 



caxiline sometimes toothed: fl. very small: achenes small, papillose- 

 roughened, rather many, in a roundish or oval head. Rare in California, 

 though common in the southern Atlantic states; found in Napa Valley, 

 Bigelom, and in Marin Co., /. P. Moore. The achenes are either smooth 

 or rough in even the eastern plant, so that the designating of ours as a 

 variety seems unwarranted. May. 



6. R. Cymbalaria, Pursh, Fl. ii. 392 (1814). Glabrous, somewhat 

 succulent, low, the crown of the perennial root sending out filiform 

 runners: leaves long-petioled, small, round-ovate, obtuse, crenately 

 lobed: scapes usually naked, erect, 3 — 6 in. high, 3 5-flowered; petals 

 linear or linear-oblong, few or many (4 — 8) : achenes minute, short-beaked, 

 striate on the sides, crowded in an oblong head. — At Mono Lake, Bulaiider, 

 and in the Kern Co. mountains. Palmer; apparently not in western Calif., 

 but common in alkaline soils in many parts of western N. America. 



7. R. Leminoiii, Gray, Proc. Am. Acad. x. 68 (1874). Subacaulescent, 

 villous-pilose below: leaves lanceolate or linear, entire: peduncles scapi- 

 form, 1-flowered; petals small, spatulate-oblong: achenes turgid, villous- 

 pubescent, with an iuflexed subulate beak, in a depressed-globose head. — 

 Sierra Valley, Plumas Co., Lernmon. 



■t— -fr- Leaves mostly teniately lobed, cleft or divided; achenes usually much 

 flattened (except in n. 8). 



8. R. ^laberrimus, Hook. Fl. i. 12 t. 5. A (1829). Glabrous, flaccid 

 but rather fleshy, 3—6 in. high: leaves all petiolate; radical rounded, 

 3-lobed or coarsely toothed; cauline subcuneate, tritid or entire: fi. 

 several, large ; sepals spreading; petals 8 — 4 lines long, obovoid: achenes 

 plump, smooth, puberuleut, with a short curved beak, and disposed in 

 a large globose head. Var. ellipticus. R. ellipficus, Greene, Pitt. ii. 110 

 (1890). Radical leaves elliptical, acitte, entire: stems shorter; fl. fewer, 

 often apetalous. — The type, a plant of the far north and east, reaches our 

 borders on the eastern slope of the Sierra northward. The variety, a 

 plant of different aspect, and with very dissirnilar foliage, is found not far 

 from Truckee, 3fr. Sonne, where it appears as if confluent with the type. 



9. R. oxynotiis, Gray, Proc. Am. Acad. x. 68 (1874). Stout, glabrous, 

 the tufted stems 3 — 6 in. high, at base encased within the dead petioles 

 of the preceding year: leaves crowded, subreniform, or rounded and 

 with cuneate base, crenately 5— 9-lobed, % — H if. broad; cauline broadly 

 cuneiform, with 3 — 5 oblong lobes: sepals pilose: petals 4 lines long: 

 achenes oblong, smooth, carinate on the back, acuminate with the subu- 

 late curved style, disposed in an oblong thick fleshy head. — At great 

 elevations in the Sierra, near snow. July — Sept. 



10. R. repens, Linn. Sp. PI. 554 (1753). Pubescent, the stems 1 — 2 



