Amhis. CRUCIFER^. 161 



* Leaves (at least the basal) more or less lyrately pinnatifid ; the cauliue not cordate nor 

 auriculate at base: pubescence of simple (rarely forked) hairs. 



A. Ludoviciana, C. A. Meter. Decumbently branching from the base, somewhat hir- 

 sute with short spreading simple hairs : leaves narrowly oblong, all deeply pinnatifid with 

 nearly uniform oblong to linear segments, mostly obliquely 1-2-toothed; flowers small, 

 white, on very sliort pedicels : pods spreading, 9 to 15 lines long by two thirds line broad, 

 on pedicels 1 to 3 lines long, beaked by a short pointed style ; valves faintly veined and 

 obscurely 1-nerved at base; seeds narrowly winged. — Ind. Sem. Hort. Petrop. ix. 60.'- 

 Cardamine Virginica, L. Spec. ii. 656. C. Ludoviciana, Hook. Jour. Bot. i. 191. C. Engel- 

 manniana, "Ind. Sem. Hort. Berol. 1840." — Virginia to S. Carolina, and west to Missouri 

 and Texas; Pt. Loma, S. Calif., Cleveland ; fl. March to May. 



A. petiolaris, Gray. Stem erect, tall, simple or branching above, glabrous or sparingly 

 pubescent with reflexed simple hairs : radical leaves few, often large and rather thick, some- 

 what lyrately pinnatifid with a few (5 to 7) sinuately toothed segments, glabrous or somewhat 

 hairy; cauliue leaves all petioled; the lower pinnatifid or usually hastately lobed; the upper 

 lanceolate to liuear, acuminate, entire or somewhat sinuate : flowers purplish, 2 to 3 lines 

 long : pods ascendiug, 2 to 3 inches long by 1| to 2 lines broad, on pedicels 3 to 5 lines long, 

 beaked by a slender style; valves veined, 1-uerved below the middle; seeds broadly winged. 

 — Proc. Am. Acad. vi. 187. Streptanthus petiolaris, Gray, PI. Fendl. 7. S. Brazoensis, 

 Buckl. Proc. Acad. Philad. 1861, 448. — W. Texas, from the Colorado to the llio Grande: 

 fl. March to May. 



* * Eadical leaves dentate (rarely lyrately pinnatifid in A. Canadensis) ; the cauliue not 

 cordate nor auriculate at base : pubescence of simple, forked, or somewhat stellately 

 branched hairs. 



A. blepharoph^Ua, Hook. & Arn. Biennial or perennial, branched at base or simple : 

 stems glabrous or somewhat hirsute below with forked hairs, a foot high or less : radical 

 leaves oblong to obovate-oblanceolate, obtuse or acutish, ciliate with forked hairs; cauliue 

 oblong, sessile, dentate or entire : flowers large, rose-colored : pedicels and calyx substel- 

 lately pubescent ; sepals often colored, broad, 2 to 3 lines long ; petals 6 lines long : pods 

 erect or ascending on pedicels 2 to 4 lines long, nearly straiglit, 9 to 12 lines long by about 

 a line broad, abruptly beaked by a short stout style; valves veined, 1-nerved ; seeds round- 

 elliptical, narrowly winged or scarcely margined. — Bot. Beech. 321 ; Hook. f. Bot. Mag. 

 t. 6087. — California, on low hills near the coast, from Sau Francisco to Monterey; fl. in 

 very early sjjring. 



A . f urcata, Watson. Perennial : stems several from a branching rootstock, slender, erect 

 or ascending, glabrous, a foot high or less : radical leaves ovate to oblong-oblanceolate, 

 obtuse or acute, sparingly tootlied, 1 to 2 inches long; cauliue sessile, oblong to linear, 

 entire or sparingly toothed : petals white, 3 to 5 lines long, more than twice longer than the 

 calyx : pods 8 to 20 lines long, straight or nearly so, attenuate to a rather short style : seeds 

 oblong-elliptical, winged at the lower end. — Proc. Am. Acad. xvii. 362. — Cascade Mts. of 

 Oregon and Washington near Hood Eiver aud Mt. Adams, Suksdorf, Howell Bros., Mrs. 

 Barrett, Brander/ee, Henderson. 



Var. purpurascens, Watson, d. var. Whole plant usually purplish : stem some- 

 what pubescent : flowers purple. — A. purpurascens, Howell, Pittonia, i. 161. — Eight Dollar 

 Mt., Waldo Co., Southwestern Oregon, T. Howell. 



A. repanda, Watson. Biennial : stem stout and tall, branching, pubescent throughout 

 with short and mostly stellately forked hairs, usually longer aud simpler at base : leaves 

 narrowly obovatc to oblanceolate, 1 to 3 or 4 iuches long, sparingly toothed or nearly entire; 

 cauliue mostly narrowed to a winged petiole, acute or olituse : flowers white, small : petals 

 narrow, 2 lines long, but little exceeding the sepals : pods recnrved-spreading on usually 

 stout ascending pedicels, 2 to 4 lines long, faintly 1-nerved at base; seeds elliptical, broadly 

 winged. — Proc. Am. Acad. xi. 122; Brew. & Wats. Bot. Calif, i. 32. — California, Yosemite 

 Valley, Bolander ; near Mineral King, Tulare Co., Coville & Funston; San Bernardino, 

 Parish Bros. 



1 Add syn. yl. Virginica, Branner & Coville, Rep. Geol. Surv. Ark. 1888, 165; Britton, Bull. 

 Torr. Club, xix. 220. 



11 



