DRABA. CRUCIFERvE. 55 



COCHLEABIA. 



branches: leaves oblanceolafce, obtuse or acutish, entire, with a stout midnerve, 

 oanescent with short dense stellate pubescence; scapes very slender, pubes- 

 cent; pods few, on smooth pedicels, 4-8 lines long, glabrous: style short 

 and stout; stigma 2-lobed. On Moitnt Adams Washington to the Rocky 

 Mountains and Brit, Oolumbia. 



* * * Caulescent : stem few-many-leaved ; leaves entire few-toothed : 



flowers yellow. 



D. aureola Watson Bot. Cal. ii, 430. Rather densely stellate-pubescent 

 throughout: caudex simple or branoheC: stem simple. J-4 inches high: 

 leaves numerous, 4-6 lines long, oblanceolate, obtuse, entire; the oauline 

 oblong: racemes short and dense: calyx glabrous:, pods broadly oblong, ob- 

 tuse, pubescent, on short spreading pedicels: style short and stout. On 

 the high peaks of the Cascade and Sien'a Nevada Mountains.' 



§ 4 Aizopsis DC. Syst. ii, 332. Leaves linear, entire, becom- 

 ing rigid with reflexed margins, and carinate by the prominent 

 midnerve. Densely cespitose and scapose perennials. 



1). glabella Adams Mem. Soc. Nat. Moso. v. 106. Alpine or subalpine : 

 leaves linear or linear-oblanoeolate, more. or less densely stellate-pubescent, 

 sometimes ciliate at base, pods ovate to ovate oblong, acute, usually finely 

 pubescent, 1-4 lines long: style J-J line long. In the high mountains of 

 California and eastern Oregon to the Arctic Chcle and the Rocky Mt's 



D. denslfolia Nutt. T. & G. Fl.i, 104 Densely cespitose in somewhat glo- 

 bosatnfta: leaves closely imbricated, short and rigid, strongly ciliate, glab- 

 rous' or hirsute iifiih nearly simple hairs: scapes naked, hirsute: pods ovate, 

 pubescent, 4-6-seeded; thft valves only moderately convex: style about j 

 the length of the pod. • Alpine, Idahft to Cailifornia, Nevada and Utah. 



D. Uonglasil Gray Proc. Am. Acad, vli, .^2S. ^raj^a Oregonensis Gray I. 

 c. xvii, X99. Densely cespitose, ^-2 inches high, very leafy; lea^ves oblan- 

 ceolate to linear-spatulate, acute, somewhat rigid, ciliate, sessile, 4-6 lines 

 long : peduncles scarsely exceeding the leaves : pods ovate, sub terete, acute 

 at each end, attenuate upwards to the long slender style, pubescent : ovules 

 only 2, rarely 4, in each cell, pendent from near the apex of the cell : seeds 

 very large. On the high hills in wet gravely places, Klickitat Co. Wash, 

 to California. 



17 COCHLEARIA Tourn. Inst. 215, t. 101, L. Gen. n. 803. 



Low glabrous and somewhat succulent herbs with mostly en- 

 tire leaves and small white flowers. Sepals short and broad, 

 rounded at the apex : petals obovate or cuneate very short ungui- 

 culajte. Stamens straight, fTee. Style slender, sometimes very 

 short. Stigma simple or nearly so. Pods subglobose to short 

 oblong often somewhat obcompresse J, very turgid : valves dis- 

 tinctly 1-nerved. Seeds 2-several, in 2 rows in each cell. Coty- 

 ledons accumbent. 



C. Angllca L. Syst. Nat. ed. 10, 1128 & spec, ed 2, ii, 903. (?) Radical 

 leaves long-petioled, ovate or suborbicular rounded at the base or slightly 

 and broadly cordate, subentire ; lower cauline similar, short petioled, the 

 middle and upper ones ovateoblong sparingly and bluntly toothed, sessile 

 by a more or less auriculate base : pods subglobose reticulated with promi- 

 nent veins. Shores of bogs, etc., (Jregon to Alaska. 



Tribe III. Siaymbrieas DC. Pods iongitudinally dehiscent their 

 whole length, 1-ceU'ed, linear to oblong. Seeds in 1 row, 



