20 ORDER 1. RANUNCULACE^E. 



T R. Cymbalarla Ph. St. filiform, creeping, rooting; Ivs. reniform-cordate, cronato 

 dentate above ; scapes 1-5-flowered (26') ; petals 5 8. oval ; carpels etriate, beak 

 short, uncinate. Brackish shores, N. J. to Dak. (Matthews). June. 



8 R. sceleratiis Ph. Erect, smooth : root Ivs. 3-lobed, lower stem Ivs. 3-partecl and 



cnt-crenate ; fls. small ; carp, point' ss. Wet. Can. to Ga. If. Head 3". Jn. Ang. 



9 R.Pemisylvanicns L. Very .rsute ; leaves ternate, Ifts. subpetiolate, deeply 3- 



lobedandcat; eep. reflexed, longer than the 5 pet. ; carp, beaked. Wet. 2f. Jn.-Aug. 



10 R. abortlvus L. Very smooth; root Ivs. roundish cordate, crtnate, petiolale ; 

 upper leaves in 3 linear segments ; sepals reflexed, longer than the very short petals. 

 Woods : common. 8 16'. Flowers very small. Pretty. May, June. 



1 1 R. rccurvatns Poir. Hirsute with thin spreading hairs ; leaves all similarly 8- 

 parted, lobes incised ; sepals recurved, longer than the petals ; carpels with a hooked 

 beak. Woods. If. Pale green. Flowers small. May July. 



12 R. rhomboideus Goldie. Hairy, much branched ; root Ivs. rhomboid-ovate, cre- 

 nate-dentate, long-stalked ; sep. spreading, shorter than the petals ; achenia smooth, 

 with a very short beak. Prairies, 111., Mich., Wis., Can. 610'. May. 



13 R. fasclcularls Muhl. Early C. Erect; root a fascicle of fleshy fibres; root 

 leaves appearing pinnate ; peduncles terete ; carpels scarcely margined, beak slender. 

 Rocky hills. 5 10'. Hairs silky. Flowers 1' broad. April, May. 



14 R. repeiis L. Root fibrous ; later stems creeping, long ; root leaves ternate, with 

 stalked leaflets ; pedicels furrowed ; carpels broadly margined and stout-beaked. 

 Moist shades. 1 3f. Flowers showy. Hairy or smooth. Very variable. 



1 5 R. bulbosus L. Hairy ; stem erect, bulbous at the base ; root leaves ternate. seg- 

 ments petiolate, incised ; ped. furrowed ; sepals reflexed. Fields, N. Eng..to Pa. if. 

 May, Jn. The cup-shaped flower, golden-yellow, is larger and handsomer than No. 17. 



1 6 R. palmattis Ell. Erect ; leaves 3-5-cleft, with the sinus at the base closed, seg 

 meuts all sessile, cut-dentate, or lobed; carpels margined and straight-beaked. Pine 

 woods, Car. to Fla. If 18'. Pubescent. Flowers small (7"). April. May. 



1 7 R. acris L. Buttercups. Erect ; leaves deeply trifid, the base segments divari- 

 cate, all laciniate and sessile ; pedicels terete ; carpels with a short recurved beak. 

 Common in N. Eng. and Can. Hairy. 2f. Flowers large, 1' broad. June Sept. 



18 R. imirioatns L. Glabrous; carpels aculeate, strongly margined, ending in a 

 stout recurved beak. Va. to La., also in Cal. If. Leaves lobed and toothed. 



19 R. parvlflbrus L. Villous ; carpels rounded, granulated, tipped with a very 

 short beak. Va. to La. 612'. Flowers small. March, April. 



20 R. ASIATICUS. Garden Ranunculus. Erect; leaves ternate or biternate, segments 

 incised or lobed ; head of carpeJs cylindric. Levant. If. Flowers variegated end 

 lessly, of every form and hue. Not hardy. 



21 R. ACONITIPOLIUS. Branching and many-flowered ; leaves palmately 3-7-parted and 

 cut-toothed, the upper sessile, with lance-linear lobes ; calyx appressed ; petals pure 

 white From Europe. A fine old border flower, deep green, the flowers often double. 



8, MYOSURUS, Dill. MOUSE-TAIL. Sep. 5, produced downward at 

 base below their insertion. Petals 5, with slender, tubular claws. Sta- 

 mens 5 20. Achenia spicate ou the spindle-shaped torus. Leaves 

 linear, entire, radical. Scapes 1-flowered. Fig. 132. 



M. minimus L. Low grounds, 111. to La., W. to Oreg. 1 A curious little plant, re- 

 markable for its tall torus, covered with numerous bluut carpels. Pet. yellow. Apr. 



9. ISOPYRUM, L. FALSE RUE ANEMONE. Sep. 4, petaloid, decidu- 

 ous. Pet. 5, small, tubular, sometimes 0. Follicles 3 or more, subsessila 

 pointed with the style, with 2 or more seeds. Delicate herbs. Leaves ter 

 nately compound. Ifts. 2-3-lobed. Flowers pedunculate, white. Fig. 33. 



