10 RANUNCULACE.E. A7iemnne. 



* Akenes densely loug-woolly (except in A. Tetonensis), iii ours much compressed. — 

 § Erioceplialus, Hook. f. & Thorns. Fl. lud. i. 20. 



-J— Plants mostly low, from a multicipital caudex or in the first species from slender root- 

 stocks : sepals 5 or 6, rarely 8, oval, half luch long or less : style filiform, longer than the 

 ovary, at length wholly or partly deciduous : head of carpels globose or oval. 



A. parviflora, Miciix. A span or two high from slender somewhat creeping rootstocks, 

 simple, one-tlowered : leaves 3-parted into cuneiform 2-3-lobed and crenate-dentate divisions : 

 sessile involucre 2-3-leavc(l somewhat similar: sepals white, not over 6: style not longer 

 than the semi-obovate akene, erect. — Fl. i. 319; Torr. & Gray, Fl. i. 12. A. cunei/olia, 

 Juss. Ann. Mus. iii. 248, t. 21, f. 1. A. borealis, Richards, in Frankl. 1st Journ. ed. 1, App. 

 740 (reprint, p. 12), & ed. 2, App. 750 (reprint, p. 22). — Labrador and Auticosti to the 

 Arctic Sea and the Aleutian Islands, south to L. Superior and the Rocky Mountains in 

 Colorado. (Adj. N. E. Asia.) 



A. Drummondii, Watson. A span or two high from a thick multicipital caudex, 

 glabrate : stems l(-2)-flowered : leaves small, of rounded circumscription, 2-3-ternately 

 dissected ; the lobes from linear to cuneate-lanceolate : involucre usually similar : sepals 

 bluish : styles almost capillary, prominently exserted : akenes semi-ovate, apiculate with the 

 thickened and persistent inflexed base of the style. — Bot. Calif, ii. 424; Engelm. Bot. Gaz. 

 vi. 237. A. Baldensis, Hook. 1^1. Bor.-Am., i. 5 ; Torr. & Gray, 1. c. 12, not L. — Alpine 

 region of the Rocky Mountains about lat. 49°, Drummond, Lyall ; ^ and in the Cascade Range, 

 Mount Adams, Saksdorf, and Mount Hood, Henderson ; thence south to California on Scott's 

 Mountains, Greene, and Lassen, Mrs. Austin, Lemmon. 



A. multifida, Poir. A foot or less high, from a multicipital caudex, villous-pubescent : 

 stems 1-3-tlowered, the lateral peduncles commonly with partial involucre : leaves 2-3- 

 ternately dissected into narrow lanceolate or linear lobes; those of the involucre similar, 

 more or less petiolate : sepals from dull crimson to yellowish or whitish, varying from a 

 quarter to full half inch long : style about half the length of the obliquely obovate mature 

 carpel, at length inflexed, somewhat persistent. — Suppl. i. 364 (the subantarctic plant) ; DC. 

 Syst. i. 209 ; Deless. Tc. Sel. i. t. 16 ; Torr. & Gray, Fl. i. 13 ; Torr. Fl. N. Y. i. t. 2. A. Com- 

 mersoniana, DC. in Deless. 1. c. i. 4, t. 17, larger-flowered antarctic form. A. Hudsoniana, 

 & var. scmr/uinea, Richards, in Frankl. 1st Jouru. ed. 1, App. 741 (reprint, p. 13) ; Torr. & 

 Gray, Fl. i. 658, the N. Am. plant. A. lanigera, Gay, Fl. Chil. i. 22, Chilian. A. decapetala, 

 Hook. f. Fl. Antarc. ii. 223, partly, & Arc. PI. 283. — On rocks, &c., N. E. Maine, Miss 

 Frtrbish, to L. Superior, Nebraska, thence to the Rocky Mountains (and south to those of 

 Arizona), Brit. Columbia, Alaska, and north to the arctic coast.2 (Chili, Patagonia ) 

 A.* Tetonensis, Porter. Nearly related to the last, but lower and more slender : leaf- 

 segments somewhat broader, obtusish, glabrate: flowers deep purple or (?) pale: akenes 

 dorsallv glabrate. — Porter in Britton, Ann. N. Y. Acad. Sci. vi. 224. — Idaho, Teton Range, 

 10,000 feet, J. M. Coidter, and Needle Peak of Lost River Mountains, V. Baden (fls. 

 apparently white or nearly so). A white-flowered form witli longer and persisting styles, 

 and scarcely pubescent akenes, discovered in Utah by M. E. Jones, is doubtfully referred to 

 this species", although both may prove to intergrade with A. multifida. 



^_ ^_ Plants low, single, from a small tuber or tuberiform root ; sepals 9 to 20, linear-oblong 



or spatulate, half to three fourths inch long : stvle filiform, as long as the ovary, straiglit, 



hardlv persistent : head of carpels from short-oblong to cylindrical : leaves varying in the 



same species from simply to thrice ternately compound or parted : leaflets when undivided 



obovate-cuneate and inci.sed, when much dissected cut into lanceolate or linear lobes. 



A.* decapetala, Ard.^ A span to a foot high from an oblong tuberous root : leaves usually 



appressed-pubescent or at least ciliate-hirsute, 3-foliolate ; leaflets petiolulate or sessile, broad, 



ovate or ovate-oblong, crenate-dentate or shallowly and obtusely cleft : involucre very 



dissimilar, borne at or above the middle of the 1-flowered stem, subsessile, its three leaves 



i S. Brit. America, Macoun. 



2 Eastward to New Brunswick and Anticosti, and southward in Rocky Mts. to Arizona accordmg 

 to Britton, 1. c. 222. 



3 Dr. Gray's description of this species has been altered to exclude the following clearly distm- 



giiishable plant. 



