12 llANUNCULACEiE. Anemone. 



A.* Canadensis, L.i A foot or two high from deep filiform rootstocks, pubescent : stem 

 rather slender, prolifero-dichotomous from the involucre after producing the slender- 

 peduucled primary tlower, sometimes again or even again similarly proliferous from the 

 secondary involucres : leaves very veiny ; radical long-])etiolcd, 5-7-parted or deeply cleft 

 into narrowly cnneate divisions ; these partly 2-3-cleft and incised or sharply toothed 

 toward the apex: primary involucre 2-3-leaved; secondary 2-leaved, smaller, less cut, 

 ascending : sepals bright wliite : head of rather numerous carpels globose ; carpels hirsute 

 when young, glabrate in age, abruptly tipped with a rigid soon straight and mainly per- 

 sistent subulate style of nearly the length of the orbicular akeue. — Syst. Nat. ed. 12, iii, 

 App, 1, 431 (1768). A. dichotoma, L. Spec, i, 540, in part ; Pursh, Fl. ii. 387 (with A. Pennsjjl- 

 vanica) ; Lloyd Bros. Am. Drugs & Med. i. 22, f. 8. A. Peimsijlvanka, L. Mant. ii. 247 (where 

 distinguished from the E. Asian A. dichotoma, which besides has the short-styled carpels ovate 

 at maturity) ; Hook. Fl. Bor.-Am. i. 8, t. 3; Torr. & Gray, Fl. i. 14; Gray, Gen. 111. i. 20, 

 t. 4, not Ledeb. A. irregularis, Lam. Diet. i. 167. A. aconitifolia, Michx. Fl. i. 320.2 — Low 

 grounds, Nova Scotia and Hudson Bay to Saskatchewan, and south to S. Pennsylvania, 

 Illinois, and along the Kocky Mountains to S. Colorado ; 3 fl. early summer. 



A. narcissiflora, L. A span or at length a foot or more high from a thick caudex, villous : 

 radical leaves of orbicular outline, 3-5-parted or divided into cuneate multifid divisions ; 

 lobes narrowly lanceolate or linear : involucre similar but closely sessile and usually more 

 simply cleft, subtending solitary or usually several umbellate peduncles : akenes glabrous, 

 apiculate with short soon inflexed st^'le. — Spec. i. 542 ; Pursh, 1. c. 387 ; Hook. Fl. Bor.-Am. 

 i. 8; Torr. & Gray, 1. c. ; Reiciienb. Ic. Fl. Germ. iv. t. 48. — Alpine region.s. Rocky Moun- 

 tains of Colorado (first coll. by James) and northward, and Alaska to Bering Strait.* 

 (Eu., Asia.) 



* * * Akenes naked or merely pubescent, less flattened, ovate-oblong or narrower, wing- 

 less, comparatively few in the head : sepals 4 to 6, commonly 5, obovate or oval, half inch 

 or more long : slender and glabrous or pubescent plants, simple and one-flowered, a span 

 to a foot high, with few radical leaves, or these remote and separate from the scape. 



■h- From elongated filiform or flagelliform rootstocks : involucre of 2 or 3 simple subsessile 

 leaves, and radical leaves at most trifoliolate. 



A ■ deltoidea, Hook. Radical leaves trifoliolate; leaflets sessile or nearly so, ovate or 

 rhombic-ovate, acutish, obtusely dentate, somewhat incised or the lateral 2-3-lobed : involu- 

 cre of 2 or 3 ovate similarly toothed or incised leaves : sepals white, often an inch long : 

 carpels pubescent, glabrate in age, ovate, pointed with a very short at length straight subulate 

 style. — Fl. Bor.-Am. i. 6, t. 3 ; Torr. & Gray, 1. c. 13 ; Wats. Bot. Calif, ii. 424. — Western 

 part of Washington and Oregon in woods (t3qie specimens coll. by Douglas and by Scolder) to 

 N. California, Greene, Rattan. Stem at length a foot high. 



A. Richardsoni, Hook. Radical leaves round-reniform, deeply and somewhat palmately 

 5-cleft into cuneate-obovate incised lobes : involucre of 3 dilated cuneate 3-lobed and 

 incisely dentate leaves : sepals sulphur-color : carpels glabrous ; persistent style very long, 

 filiform, recurved-spreading in age, hooked at tip. — Fl. Bor.-Am. i. 6, t. 4 ; Schlecht. 

 Linnrea, vi. 575 ; Torr. & Gray, 1. c, printed Richardsoniana. A. ranuncidoides, var., 

 Richards, in Frankl. 1st Journ. ed. 1, App. 740 (reprint, p. 12). A. Vahlii, Hornem. Fl. 

 Dan. t. 2176. — Shores of Hudson Bay to Alaskan Islands, and through arctic America. 

 (Adj. N. E. Asia, Greenland.) 



-1— -1— Rootstocks horizontal, thickish : involucre 2-3-phyllous, and 3-5-foliolate ; the leaves 

 slender-petioled.^ 



* Dr. Gray employs A. Pennsylvanica, L., for this species, but it is a later name. 

 2 Add syn. A. dichotoma, var. Canadensis, MacMillan, Metasp. Minn. Val. 237. 



8 Westward in Brit. America to the Pacific, according to Hooker, 1. c. 8, and southward to Mary- 

 land according to Britton, 1. c. 228. 



4 Reported in W. Newfoundland, by Reeks, List Fl. PI. Nfd. 2, but probably erroneously. 



5 A, nudicauUs, Gray, Bot. Gaz. xi. 17, described from imperfect specimens and placed in this 

 part of the genus, has subseiiuently been conclusively identified with Ranunculus Lapponicus, L. See 

 Britton, Ann. N. Y. Acad. Sci. vi. 233. 



