0»DEB 1.— RANUNCULACE^. 205 



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



U Lvs. palraately lobed. Fls. corymbous. 



T. palmdta Fisch and Meyer. A coarse plant of the prairies and woods, Va. to 

 Can., W. to 111. Stem slender, 2 — 6f high, terete, smooth, terminating in a large 

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

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

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

 (Oimicifuga, Hook.) 



6. ADONIS, L. Pheabant's-Eye. (Feigned to have sprung from 

 the bloori of Adonis when wounded by the boar.) Sepals 5, appresscd ; 

 petals o — 15, with a Tiaked (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. auttunndlia L. Petals 5 — 8 {crimson), concave and connivent. — A fine 

 hardy annual, fi'oin Europe, naturalized in some parts of the country. Stem 

 thick, branching. If high Lvs. pinnately parted, with numerous linear seg- 

 ments. Pis. li' diam. Carpels-crowned with a very short style, and collected 

 into an ovate or sub-oylindrio bead. Seeds to be' sown in autumn in <* light 

 soil. 



2 A. vernEilis L. Petals 10 — 12 (yellow), oblong, spreading. — A handsome 

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



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

 242, 294, 369, 458, 386, 415. (Lat. rana,-afrog; 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 1/- , with alternate leaves 

 and yellow flowers. ' 



i Seeds (carpels) rongh with points or priclclGs Noa. 3, 2 



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



a Leaves in tine, numei'ous, thread-like divisions, under water Wos. S, 4 



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



— Stems erect Nos. 7 — 9 



a Root-lvs. simply crenato or lobed, stem leaves divided Nos. 10,11 



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



b Sepals spread! u}^ in flower, shoiter than the showy petals Nos. 12 — ^14 



b Sopaia reflexed in 13ower. — Head of carpels oblong Nos. 15, Ifi 



— Heads of car^iels globous Nos. 17, IS 



1 R. murioatus L. Glabrous; carpels aculeate, strongly margined, apd ending 

 in a stout, 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. Fls. 

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

 § Bur. 



2 R. parvifldrus L. Villous', carpels roundish, granulated, tipped with a i^ery 

 short beak — Va. 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. J'ls. quite small, the yellow petals not exceeding the calyx. Seeds 

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



3 R. aquatilis L. /3 oapillaoeus. Lvs. all fiiliformly 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 or more in length, slender, weak, 

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

 segments, in outline roundish and J — 1' diam. Pod. thick, 1— IJ' long. Fla. 

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



n., Auff. 



