50 cKrciKKK.K CAR&amink. 



lous point; lateral leaflets ovate, entire, mostly obtuse, 10-13 lines long: ra- 

 ceme ample: flowers white: pods 25-30 lines long, erect on widely spread- 

 ing pedicels: style stout: seeds light brown, about 20 iu each pod. In 

 springy places, Spokane July 2nd and Sept. 27, 189G," C. V. Piper. 



C. Brewerii Watson Proc. Am. Acad, x, 339. Glabrous or slightly 

 pubescent at base: stems erect or decumbent at base, a foot or more high 

 from slender running rootstocks; radical leaves simple or with a pair of small 

 lateral leaflets, round-cordate, entire or coarsely sinuate-toothed, the cauline 

 with rounded and sinuate or lobed leaflets, the upper more oblong or lanceo- 

 late: petals 2 lines long white: pods 8-15 lines long, obtuse or scarcely 

 beaked with the short style, ascending on pedicels 2-4 lines long: radical, 

 scarcely cleft. In the mountains and along the coast, Brit. Columbia to 

 California and Nevada. 



C. angulata Hook. Fl. i, 44. Glabrous or sparsely hirsute: stems 

 rather slender, simple, 1-2 feet high from long running rootstocks: leaves 

 all 3-foliolate or sometimes 5-foliolate; leaflets triangular-ovate to oblong, 

 usually cuneate at base and coarsely 3-5 toothed or the lateral ones entire, 

 the terminal ones not greatly larger than the lateral, about an inch long ex- 

 ceeding the petioles: raceme short, few-flowered: petals wliite, 5-7 lines long: 

 pods about an inch long attenuate to the stout style, spreading on divari- 

 cate pedicels. In damp woods, Oregon to Brit. Columbia. 



C. occi den talis. C. pratensis var occidentali Watson in Gray Syn. Fl. 

 i, 158. Minutely hirsute below : stems slender, 4-10 inches high from 

 small oblong tubers, paniculately branched: leaves mostly radical, pinnate; 

 leaflets 3-5 pairs, obovate or oblong to linear, 1-4 lines long sparingly den- 

 tate, the terminal one the largest: racemes short, several-flowered; petals 

 white, a line long, but little longer than the sepals: pods filiform an inch 

 long by less than half a line wide, abruptly contracted to the sessile stigma, 

 ta length erect on spreading pedicels: seeds minute, oblong. In open wet 

 places about the mouth of the Willamette river. 



C. pratensis L. Spec, ii, 650. Glabrous or somewhat pubescent be- 

 low: stems erect from a fibrous-rooted tuber, 10-16 inches high: leaves pin- 

 nately 7-13 foliolate; leaflets mostly entire, often petiolulate, those of the 

 radical leaves roundish, of the cauline oblong to linear: flowers white, 

 usually in a broad corymb, 2-6 lines long: pods 2-15 lines long by a line 

 wide, tipped with a short thick style. In wet places, Willamette valley, 

 Oregon to Alaska and the northeastern states and Labrador. 



C. parviflora L. Syst. Nat. ed. 10, 1131. Very slender, glabrous or 

 sparingly pubescent stem simsimple, erect or nearly so, 6-18 inches nigh 

 from a fascicle of delicate fibrous roots: leaves pinnately parted into several 

 pairs of small leaflets, those of the lower leaves oblong to suborbicular, of 

 the tipper linear: (lowers small; petals oblong-cuneiform, longer than the 

 ovate obtuse sepals: pods about an inch long, erect upon spreading pedicels. 

 In damp woods, Oregon to the New England states. 



('. Pennsylvania Muhl. in Willd. Spec, iii, 486 Nearly or quite gla- 

 brous: stems b foot or two high from a fascicle of slender fibrous roots, 

 leafy and branching: leaves pinnately 3-15 foliolate; leaflets of the lower 

 Leaves roundish or short-oblong; of the upper oblong with rounded apex and 

 narrowed base commonly more or less decurrent upon the rachis, usually 

 half in h or more long and 1-3 lines broad: petals white, a line or two long: 

 pods Buberecl upon ascending pedicels. California to Alaska and across the 

 Continent to the Atlantic states. 



('. olfgosperma Nutt. T. & <J. Fl. i, 85. Hirsute to nearly gla- 

 brous: stems -lender. 8-12 inches high from an annual fibrous root, leaves all 

 pinnate; leaflets 8-6 pairs, roundish. L-6 lines in diameter, obtusely 3-5- 



