Obdbr 1.— EANUNCULACB^. 203 



few, long-stalked (3 — 5'), temate, the segments stalked, simple, or incisely 3-lobed or 

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

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

 scape. Fi greenish, scentless: sepals commonly 8, all liuear-oblong, 5 — 6" long, 

 soon falling. Heads of carpels 1 J' long; ach. flattened. Mar. — Apr. 



4 A. parviflora Mx. Invol. 2-leaved; sep. 5-6, ovalj head pf carpels globular. — 

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

 cuneiform, 3-oleft, crenate lofced, those of the involucre similar, subsessile. Flower 

 whitisli. (A. cuneifoUa, Ph.J 



5 A. multifida DC. Bed wind-flower. Invol. short-petioled ; lateral peduncles 

 involucellate : heads of carpels oval. — ^Eocks, 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, 

 simUar, subtending 2 or 3 peduncles. Involucels 2-leavcd, sessile. FIs. of 5 — 8 

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



6 A. Virginiana L. Invol. kmg-petioled; lateral peduncles involucellate; lieada 

 of carpels ohlong. — 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 ; Ifts. ovate-lanceolate, toothed and lobed ; petioles 

 6 — 1 0' long, petioles of the bracts much shoi-ter. Sepals 5, yellowish green. Fruit 

 woolly, in heads f long. July. 



/?. ALBA. Fis. larger; sep. white. — Ledges, Vt. (Dr. Robbins.) 



7 A. cyl£ndrioa Gray. Invol. long-petioled; ^eduncfe,? afl nafed; head of carpels 

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

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

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

 with involudes ; sep. 5, silky, greenish-white, obtuse ; heads of fruit IJ' long. May. 



8 A. nemordsa (and quiuquefolia) L. Low, smooth, 1-flowered ; invol. petiolaie. — 

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

 in open fields. Radical leaf 1, temate, 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 the 

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

 Apr.,. May. 



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

 ones involucellate. — Shores and wet prairies. Can. to Penn. W. to Ind. and Wis. 

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

 3-lobed, pointed. Lvs. of the involucre 3-parted, acuminate-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. Jij. — 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-oleft. Flowers several, umbelate, white, on leafless 

 stalks. 



11 A. thalictroides L. Rot 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, f as wide, oval, subcordate, 3-lobed. Invol. of two ternate leaves 

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

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



12 A. ooron^ria L. Lvs. ternate, with multifid segments and linear r,iucronaie 

 lobes ; sep. 6, oval, close. — Prom Levant A hardy, flowering plant, with Largo 

 single or double variegated flowers. May.f 



13 A. hortSnsis 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 varieties of red, white, and blue 

 flowers. May.f 



