10 RANUNCULACE.E. Atiemnne. 



* Akeues densely long-woolly (except in ^1. Tetonensis), in ours much compressed. — 



§ Eriocepltalus, Ilouk. f. & Tlioms. Fl. lud. i. 20. 

 -1— Plants mostly low, from a multiiipital caudex or in the first species from slender root- 

 stocks: sepals 5 or 6, rarely 8, oval, half .nch long or less : style filiform, longer than tlie 

 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 root.stocks, 

 simple, one-llowered : leaves 3-parted into cuneiform 2-3-iobed and crenate-dentate divisions : 

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

 tliau the senii-obovate akene, erect. — Fl. i. 319; Torr. & Gray, Fl. i. 12. A. cimeifolia, 

 Juss. Ann. Mus. iii. 248, t. 21, f. I. A. borealis, Kichiirds. in Frankl. 1st Jonrn. ed. 1, App. 

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

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

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

 A. Dnimmondii, Watson. A span or two higli from a thick multicipital caudex, 

 glabrate: stems I(-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 : akejies semi-ovate, apicuhite with the 

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

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

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

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

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



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

 stems 1-3-rtowered, 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 whitisli, varying from a 

 quarter to full half inch long : style about half the length of the obli(iuely obovate mature 

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

 Syst. i. 209 ; Deless. Ic. Sel. i. t. 16 ; Torr. & Gray, Fl. i. 13 ; Torr. Fl. N. Y. i. t. 2. .1. Com- 

 inersoniana, DC. in Deless 1. c. i. 4, t. 17, larger-flowered antarctic form. .1. Hudsoniann, 

 & var. ^antjuinea, Richards, in Frankl. 1st Journ. ed. I, App. 741 (reprint, p. 13) ; Torr. & 

 Gray, Fl. i. 658, the N. Am. plant. A. lanic/era, Gay, Fl. Chil. i. 22, Chilian. A. decnpetala, 

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

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

 Arizona), Brit. Columbia, Alaska, and north to tlie arctic coast.'^ (Chili, Patagonia) 

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

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

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

 10,000 feet. .7. M. Coultn-, and Needle Peak of Lost River Mountains, V. Bailei/ (fls. 

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

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

 this species, although botli may prove to intergrade with A. multifda. 



•4- -I- Plants low, single, from a small tuber or tuberiform root : .sepals 9 to 20, linear-oblong 



or spatulate, half to three fourths inch hmg: stvle filiform, as long a-* the ovary, straight, 



hardly per.sistent : 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 



obovatc-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 



appresseil-pubescent or at least ciliate-hirsute, 3-foliolate ; leaflets pctiolulate or sessile, Imjad, 



ovate or ovate-oblong, crenate-dentate or shallowly and obtu.sely cleft : involucre very 



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



1 S. Brit. America, Macnun. 



2 Ea.stward to New Brunswick and Anticosti, and southward in Rocky Mts. to Arizona acconiing 

 to Britton, 1. c. 222. 



8 Dr. Oray's description of this species has been altered to exclude the following clearly distin- 

 guishable jilant. 



