10 RANUNCULACE^E. anemone. 



compressed, pointed, or ending in long feathery tails. 



§ 1. Preonathus, DC. Prod. i. 17 Involucre of 2 or 3 more or 

 less petiolate and petiolulate leaves. Flowers large, solitary. Sep- 

 als thin, widely spreading. Carpels with long filiform styles that 

 become plumose tails to the achenes. 



A. occldentalis Watson Proc. Am. Acad, xi, 121. More or less silky : 

 villous throughout: stem stout, 6-18 inches high: radical leaves large, 

 long-petioled, biternate and pinnate; involucral leaves similar, nearly ses 

 sile: sepals: €-8, 6-9 lines long, white, or purplish at base. On high moun- 

 tains near perpetual snow, California to Alaska and the Rocky Mountains. 



§ 2. Euanemone Gray Syn. Fl. i, 8. Carpels with short and 

 not plumose styles. Involucre petioled. peduncle solitary. 



* Style short, nearly naked, not becoming elongated. 



t Carpels numerous, in a close head, villous. 



A. Drummondii Watson Eot. Cal. ii, 424, Sparingly pubescent; stems 

 slender, from tufted rootstocks, 8-15 inches high: radical leaves on long 

 petioles, ternate; leaflets deeply 3-5 lobed, the narrow segments 2-3-cleft: 

 involucral leaves similar, nearly se+ssile, with a slightly narrowed base: 

 sepals 5-7, pale blue, 4-5 lines long, silky-villous outside : style slender, 

 glabrous: achenes densely villous. On the highest mountains near per- 

 petual enow, Washington and Oregon to orthern California. 



A. multiiida Poir. Suppl. i, 364. Somewhat silky-villous : stems 3-15 

 inches high : radical leaves long petioled, nearly semicircular in outline, 

 ternate, the sessile divisions deeply lobed with cleft linear segments: invo- 

 lucral leaves similar, shortly petioled: sepals 5-8, red or bluish or whitish, 

 4-6 lines long, villous outside: receptacle oblong, the head in fruit globular 

 to oblorg; achenes densely woolly, ovate-oblong, with a straight beak. On 

 high mountains, Oregon to Alaska and the Eastern States. 



A. Tetonensis Porter in Britton An. N. Y. Acad. Sci. vi. 224. Nearly 

 related to the last but lower and more slender: leaf-segments somewhat broad- 

 er, obtus-ish. glabrate : flowers deep purple : achenes dorsally glabrate. Idaho 

 Teton Range 10,0C0 feet /. M. Coulter, and Needle Peak of Lost River Moun- 

 tains. V. Bailey. Robinson in Gray, Syn. Fl. i, 10. 



^_ 4_ Carpels fewer, pubescent but not villous. 



A. (leltoidea Hook Fl. i, 6, t. 3. Stem simple, slender, 6-14inch.es high, 

 from long running root-stocks: radical leaves trifoliate; leaflets rhomboid, 

 crenate-serrate ; involucral leaves rhomboid or rhombic-ovate, on very 

 short petioles, serrate and sometimes 3-lobed: sepals about 5, white, oval. 

 4-6 lines long, usually unequal : achenes few globose-ovoid, tipped with 

 the short style, Common in wooded districts, N. California to Brit. Col. 



A. Oreg , ana Gray Proc. Am. Acad, xxii, 308. Smoothish : stem 

 slender, 3-12 inches high from a fleshy, very brittle, somewhat running 

 root-stock: radical leaves trifoliate, the leaflets coarsely serrate ; involucral 

 leaves long-petioled, trifoliate, the terminal leaflet 3-lobed, the lateral ones 

 usually 2-lobed, all coarsely toothed and cut: sepals 4-7, oval to obovate, 

 blue : carpels 15-20, oblong, tipped with a hooked beak. Moist shady 

 slopes, western Oregon and Washington. 



A.. Lyallii Britton 1. c. 227. A.quinquefolia var. Lyallii Robinson I. c. 13. 

 Stem slender, 2 to 4 inches high: leaves trifoliate; ieaflets ovate to lanceo- 

 late, obtuse or acute, obtusely toothed : flowers small, a third to half inch in 

 diameter, pale blue or whitish. From Vancouver Island to the Willamette 

 valley and the Redwoods of California. 



