Order 1.— RANUNCULACE^E. 205 



few, long-stalked (3 — 5), ternate, the segments stalked, simple, orincisely 3-lobed or 

 parted. Scape 8 — 16' high, silky pubescent above. Lvs. of the invoL totally unlike 

 the others, the segments 1 — 1£ by 1", placed (in flower) above the middle of the 

 ecape. FL greenish, scentless: sepals commonly 8, all linear-oblong, 5 — 6" long, 

 Boon falling. Heads of carpels 1£' long; ach. flattened. Mar. — Apr. 



4 A. parvifiora Mx. Invol. 2-leaved ; sep. 5-6, oval; head of carpels globular.— 

 Canada and northward. Stem 2 — 12' high, pubescent. Lvs. 3-parted, segments 

 cuneiform, 3-cleft, crenate lobed, those of the involucre similar, subsessile. Flower 

 whitish. (A. cuneifolh, Ph.) , 



5 A. imiltifida DC. Red wind-flower. Invol. sliort-petioled ; lateral peduncles 

 involucellate : heads' of carpels oval. — Rocks, northern Vt. and N. Y., W. to Lake 

 Superior; rare. Plant hairy, about If high. Radical lvs. ternately divided, segm. 

 cuneiform, gashed into 3 linear acute lobes, petioles 2 — 4' long. Invol. 2 — 3-leaved, 

 similar, subtending 2 or 3 peduncles. Involucels 2-leaved, sessile. Fls. of 5 — 8 

 obtuse sepals, small, purple, varying to white. Jn. (A. Hudsoniana Rich.) 



6 A. Virginiana L. InvoL long-petioled; lateral peduncles involucellate ; heads 

 of carpels oblong. — A tall species in dry woods and hilly pastures, Can. to Car. 

 Scape erect, 2-3 f. high, hairy, dividing above into about 3 long parallel 1-flowered 

 peduncles, middle one naked, lateral ones each with an involucel of two bracts. 

 Lvs. 2-3' by 3— 4', 3-parted; lfts. ovate-lanceolate, toothed and lobed; petioles 

 6 — 10' long, petioles of tho bracts much shorter. Sepals 5, yellowish green. Fruit 

 woolly, in heads f long. July. 



/3. alba. F:s. larger; sep. white. — Ledges, Vt. (Dr. Robbins.) 



7 A. cylindrica Gray. Invol. long-petioled; peduncles all naked; head of carpels 

 cylindrical. — Dry soils, Mass., N. H. to Iowa. Plant silky pubescent, 1 — 2f high. 

 Lvs. 2 — 3' wide, 3-parted ; segm. cuneate, deeply gash-lobed and cut-toothed, petioles 

 3 — 6' long; ped. 3 — 6, 1-flowered, 6—10' long, umbellate, sometimes one or two 

 with involucles; sep. 5, silky, greenish-white, obtuse; heads of fruit 1^' long. May. 



8 A. nemorosa (and quinquefolia) L. Low, smooth, l-flowered ; invol. petiolate. — ■ 

 A common and interesting little plant, 6 — 9' high, found in old woods, hedges, and 

 in open fields. Radical leaf 1, ternate, segm. cleft or lobed. Invol. of 3 petiolate 

 leaves, placed in a whorl near the top of the stem, its bracts cut-toothed and 

 lobed, the lateral segments cleft, sometimes quite to the base, so as to render tho 

 leaf quinate. At the top of the stem is a single white flower, purplish outside. 

 Apr., May. 



9 A. Pannsylvanica L. Hairy : invol sessile : ped. one, at length 2 or 3, lateral 

 ones involucellate. — Shores and wet prairies, Can. to Penn. "W. to Iml. and Wis. 

 Stem 12 to 20' high; lvs. large, veiny, those of tho root 5-parted, segm. cuneate, 

 3-lobed, pointed. Lvs. of the invoiucro 3-parted, acumiuate-lobed and toothed. 

 First flower on a naked stalk. From its base arise two branches, each 2-leaved 

 (involuceled) and 1-flowered. Sep. 5, obovate, large, white. Jn. — Aug. 



10 A. narcissiflora L. Villous ,• involucre sessile; achenia flattened. — In Canada 

 and northward. Plant clothed with long silky hairs. Lvs. palmately 3 — 5-parted, 

 segm. cuneiform, incisely many cleft into linear acute lobes. Invol. somewhat 

 similar, the sessile leaflets 3 — 5-cleft. Flowers several, umbelate, white, on leafless 

 stalks. 



11 A. thalictroides L. Rue Anemone. (Fig. 361.) Glabrous, low; invol 

 petiolate: ach. grooved. — In woods, Can. to Ga., W. to Iowa, common. A fine 

 little plant of early spring. Root consisting of several oblong tubers ; lvs. biter- 

 nate or triternate, the common petiole 2 — 4' long. Lfts. like those of the invoL 

 6 — 12" long, § as wide, oval, subcordate, 3-lobed. Invol. of two ternato leaves 

 appearing as a whorl of 6 petiolulate lfts. Flowers several, white varying to 

 pale purple. Hight 6 — 8'. Apr., May. (Thalictrum anemonoides Mx.) 



12 A. coronaria L. Lvs. ternate, with mullifid segments and linear mucronaie 

 lobes : sep. 6, oval, close. — From Levant. A hardy, flowering plant, with large 

 single or double variegated flowers. May.f 



13 A. iiortensis L. Lvs. 3-parted, with crenate, cut-dentatel obes : invol. sessile, 

 of oblong, entire or cut leaflets. Sep. 10 — 12, oblong. — From Italy. A fine 

 garden species, with double and semi- double varietios of red, white, and blue 

 flowers. May.f 



