3G4 BRASSICACE.\E 



at the base, all erect, constricted at the throat and with spreading tips. Petals 

 undulute-crisp, with a narrow blade. Stamens 6, distinct; anthers linear, sagit- 

 tate at the base. Pods flat, linear. Cotyledons accumbent. 



1. C. cordata (Xutt.) Greene. Stems glabrous, 3-6 dm. high; basal leaves 

 spatulate, thick, usually coarsely toothed, especially towards the summit, pale 

 green; cauline leaves oblong, elliptic or ovate, cordate-clasping; petals linear- 

 lanceolate, a little exceeding the sepals; pod flat, 5-7 cm. long, 4 mm. wide; 

 Streptanlhus cordalus Nutt. S. argutus and S. crassifolius Greene. S. colora- 

 densis A, Nels. Cariiera argufa and C, crassijolia Greene. Dry places: Wyo. — 

 N.M. — Calif. — Ore. Son. — SubmotiL Je-Jl. i 



44. CAULANTHUS S. Wats. Wild Cabbage, 



More or less succulent biennials or perennials. Flowers perfect, in elongate 

 racemes. Sepals oblong,, often colored, the lateral ones more or less saccate at 

 the base, erect, with spreading tips; calyx closed and more or less urn-shaped. 

 Petals undulate-crisped, with a broad claw and a small narrow blade. Stamens 

 6; anthers linear, sagittate at the base. Pods somewhat flattened or nearly 

 terete, Imear; valves 1-nerved, often reticulate-veined; stigmas 2-lobed. Coty- 

 ledons incumbent. 



Stem glabrous; upper leaves reduced. 

 Stem inflated. 



Calyx densely vnious. 1 c crassicaidis 



Calyx as weU as the whole plant glabrous. 2." c' alaber 



Qt J,*?^ ''?*' inflated. 3. c. procerus. 



Stem hirsute. leafy. - ^ 4^ c. pilosus. 



1. C. crassicaulis (Torr.) S. Wats. Biennial or perhaps perennial; stem 

 inflated, fistulose, 1-2 cm. thick, glabrous, 3-10 dm. high; basal leaves lyrate, 

 glabrous and glaucous, 1-1.5 dm. long; stem-leaves linear or linear-oblanceolate; 

 petals Imear, nearly 2 cm. long; pod ascending, terete, 6-9 cm. long, 2 mm. 

 thick. Rocky places and hills: Ida.— Utah— Calif. Son.—SubmonL My-Je. 



2, C. glaber (M. E. Jones) Rydb. Biennial or perennial; stem fistulose, 

 1-1 o cm. thick, glabrous, 3-5 dm. high; basal leaves lyrate, about 1 dm. long, 

 glabrous; stem-leaves reduced, linear; petals linear, 15 mm. long; pod unknown. 

 C. crassicaulis glaber M. E. Jones. Dry hills: s Utah— e Nev. Son, My-Je. 

 A rh *^vP^^^cerus (Brewer) S. Wats. Perennial or biennial; stems slender, 

 4-t) din. high; basa leaves runcinate, glabrous, or the earliest enth-e, spatulate; 

 stem-leaves narrowly linear to lanceolate; sepals glabrous or nearly so; petals 

 oblong-spatulate, acummate, with a blunt apex. C, crassicaulis major M. E. 

 Jones. Hills and mountain slopes: Calif.— (? Utah). Son. Je. 



4. S. pilosus S. }Vats. Biennial; stem 6-12 dm, high, leafy; lower leaves 

 coarsely toothed or pinnatifid, hirsute, 8-20 cm. long; petals slightly longer than 



Ida. — Calif. Son. — Submo7iL 



recurved, Sandy soil: B.C. 



STREP TANTHELLA 



annual 



, ^ . , , neros, witn entire leaves and branched stems. Flowers 



perfect m slender racemes. Sepals erect, the outer saccate at the base. Petals 

 k"!? ^p 7fl^ narrow blades. Stamens distinct; anthers subsagittate at the 

 .base. Pod flat, with a long beak. Stigma 2-clef t, with the lobes over the valves. 

 Seeds wing-margined. va^v^-o. 



'y-J'U^' i°''i?""k ^*'"h ^^- ^^^^^^-^ ^^'^^- ^*^°^ glabrous, with ascending branches, 

 2-4 dm. high; basal leaves ovate-spatulate, soon deciduous: stem-leaves linear 



^^tiT/'^KT '''1^^''*^' g^^b'"?^; pedicels short, horizontal, or in fruit reflexed; 

 petals oblanceolate, 4 mm. long; pod pendulous, about 5 cm. long; style 3-5 



^^'^ ^"^i i'^"^^ longirostris_ S. Wats. Streptanlhus hngirosfris A. Gray. 

 Sandy soU: TVyo.-N.M.-Anz.-Wash. Son.-Submont. Ai>-Je. 



46. CHLOROCRAMBE Rydb. 



TiXZlTui glabrous herbs; stem simple at least up to the inflorescence. 

 Racemes lax, with slender horizontal or reflexed pedicels. Leaves thin, peti- 



