20 ORDER 1. RANUNCULACE^. 



T R. Cymbalaria Ph. St. filiform, creeping, rooting ; ITS. reniform-cordate, crcnato- 

 dentate above ; scapes 1-5-flowered (26') ; petals 58, oval ; carpels striate, beak 

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



8 R. sceleratns Ph. Erect, smooth root Ivs. 3-lobed, lower stem Ivs. 3-parted and 



cut-crenate ; fls. small ; carp, point" . d . Wet. Can. to Ga. If. Head 3". Jn. Aug. 



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



lobedandcut; sep. reflexed, lom^r thau the 5 pet. ; carp, beaked. Wet. 2f. Jn.-Aug. 



10 R. abortivus L. Very smooth; root Ivs. roundish cordate, crcnate, p.etiolate ; 

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

 Woods : common. 816'. Flowers very small. Pretty. May, June. 



1 1 R. recnrvatus Poir. Hirsute with thin spreading hairs ; leaves all similarly 3- 

 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, ere- 

 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. fascicularis Muhl. Early C. Erect; root a fascicle of fleshy fibres ; root 

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

 Rocky hills. 510'. Hairs silky. Flowers 1' broad. April, May. 



14 R. repens 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. 



15 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. pal mat us Ell. Erect ; leaves 3-5-cleft, with the sinus at the base closed, seg- 

 ments 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, V broad. June Sept. 



18 R. miiricatus 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. parviflorus L. Villous ; carpels rounded, granulated, tipped with a very 

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



SJO 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. ACONITIFOLIUS. 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 on the spindle-shaped torus. @ Leaves 

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



HI. miuimus L. Low grounds, 111. to La., W. to Oreg. ! A curious little plant, re- 

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



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

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

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

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







