Oedeb 1.— EANtTNCULACEiE. 205 



dehiscent, angular, 1-seeded, tipped with the short, hooked style. — 



'H Lvs. palmately lobed. Fls. corymbous. 



T. palmdta Fiseh and Meyer. A coarse plant of the prairies and woods, Ta. to 

 Can., "W. to 111. Stem slender, 2 — 5f high, terete, smooth, terminating in a large 

 branching corymb. Eadical lvs. 4 — 6' wide by 3 — 5' long, rugous and reticulate- 

 veined, 5 — 9 lobed, long-stalked ; stem Irs. few, remote, the upper sessile. Fls. 

 many, white. Sepals orbicular, concave, falling as soon as expanding. Jl, Aug. 

 (Cimioifuga, Hook.) 



6. ADbNIS, L. Phbasant's-Eyb. (Feigned to have sprung from 

 the blood of Adonis when wounded by the boar.) Sepals 5, appressed ; 

 petals 5 — 15, with a naked (scaleless) claw. Achenia spiked, ovate 

 and pointed with the hardened, persistent style. — Herbs with dissected 

 lvs. and terminal, solitary, red or yellow flowers. 



1 A. autumnSlis L. Petals 5 — 8 (crimson), concave and connivent. — A fine 

 hardy annual, from Europe, naturalized in some parts of the country. Stem 

 thick, branching. If high. Lvs. piunately parted, with numerous linear seg^ 

 ments. Fls. IJ' diam. Carpels crowned with a very short style, and collected 

 into an ovate or sub-cylindrio head. Seeds to be sown in autumn in a light 

 soil. 



2 A. vernalia L. Petals 10 — 12 (yellmo), -oblong, spreading. — A handsome 

 perennial, from Europe. Stem branching, 1 f. high. Lvs. sessile, multifid. 



7. RAWUNCULUS, L. Crowfoot. Buttercups. Fig. 24, 241, 

 242, 294, 369, 458, 386,416. (Lat. rana, a frog; from the aquatic 

 habitat of some species.) Calyx of 5 ovate sepals ; coiolla of 5 round- 

 ish, shining petals, each with a nectariferous scale (Fig. 294) or pore at 

 the base inside ; filaments oo ; achenia oo, flattened, pointed, crowded 

 in a roundish or oblong head. — Herbs, mostly if , with alternate leaves 

 and yellow flowers. 



} (carpels) rough with points or pricldes Nos. 1, 2 



§ Seeds (carpels) smooth and even, or merely rugous (a). 



a Leaves in fine, numerous, thread-lilce divisions,* under water I^os. 3, 4 



a Leaves all undivided and simple. — Stems creeping Nos. 0, 6 



— Stems erect Nos. 7 — 9 



a Koot-lvs. simply crenate or lobed, stem leaves divided Nos. 9, 10 



a Leaves all more or less divided, not submersed (b). 



b Sepals spreading in flower, shorter than" the snowy petals Nos. 11 — 14 



b Sepals reflexed in flower. — 1-Icati of cai^ieLs oblong Nos. 15, 16 



-^;— Heads of carpels globous Nos. 17, IS 



1 R. miiricatua L. Glabrous ; carpels aculeate, strongly naargined, and ending 

 in a stoiii, ensiform, recurved leak. Va to La. Stem branched, erect. If high. 

 Lvs. roundish (IJ' diam.), cordate, 3-lobed, lobes coarsely crenate-toothed, all 

 similar, and on petioles 1 — 5' long. Bracts close to the flower, simple. Pis. 

 small, few. Pet. obovate, yellow. Carpels large (3" long, including beak). 

 §Eur. 



2 R. parvifloruB L. Villous; carpels roundish, granulated, tipped with aweri/ 

 short beak.— Vs. to La. Stem 6—12' high, slender, branched. Lvs. all petiolate, 

 small, roundish (9 — 16" diam.), cordate, 3-lobed or parted, the segments acutely 

 toothed. Fls. quite small, the yellow petals not exceeding , the calyx. Seeds 

 scarcely 1" in length, in a globular head. § Eur. 



3 R. aquatilia L. /? capillaoeds. Lvs. aU fliliformly dissected; pet. white; 

 carpels transversely rugous. — Ponds and sluggish streams, Arctic Am. to S. Car., 

 W. to Rocky Mts. The whole plant is submerged except the flowers, and per- 

 haps a few of the upper leaves. Stem 1— 2f ormore in length, slender, weak, 

 round, smooth, jointed. Leaves divided dichotomously into numerous hair-like 

 segments, in outline roundish and ^—1' diam. Ped. thick, 1— IJ' long. Fls. 

 smaller than in R. acris. Petals rather narrow, white, except the yellow claws. 

 II., Aug. 



