CRUCIFER^. 261 



plant was first seen; but it is the S. glaiululosus, at least in part, of the 

 State Survey collectors, probably not of Hooker, which seems to be the 

 next. 



16. S. glaiululosus, Hook. Ic. 40 (1836): S. peramivnus, Greene, Bull. 

 Torr. Club, xiii. 142 (1886). Piibescence and sinuately toothed foliage of 

 the last, but larger, 1 — 2^2 ft. high: racemes more or less inclined to be 

 secund: fl. very large, bright red-purple: sepals }4, ii- long, ovate- 

 cymbiform, carmate, 3 strongly connivent at tip, the fourth hanging 

 loosely apart from the others: petals well-exserted, white-margined: 

 upper pair of filaments connate above the middle, thence rather widely 

 divergent, their anthers smaller than the others, but not greatly reduced, 

 apparently sterile: pod 3 in. long, a line wide, arcuate-recurved: seed 

 narrowly winged. — Very common on clayey hillsides and banks, from Mt. 

 Diablo and near Berkeley to Monterey; the most beautiful of all our 

 cruciferous plants when in flower; the irregularity of the calyx not at all 

 indicated in Hooker's plate, and his description imperfect. Named in 

 reference to gland-tipped teeth of foliage ; but these pervade the group. 



17. S. llispidus, Gray, Proc. Calif. Acad. iii. 101 and Am. Acad. vi. 184 

 (1864). Stiff-hirsute or hispid throughout, only 3 — 6 in. high, branching: 

 lowest obovate- or cuneate-oblong, coarsely and somewhat incisely 

 toothed, the teeth obtuse; cauline narrower, scarcely clasping: raceme 

 short, loose, the fl. at length recurved: sepals red-purple with white- 

 petaloid tips, half as long as the similarly colored petals : pods hispid, 

 If-j — 2 in. long, 1 line wide, straight, erect: seeds winged. — Still known 

 only from the summit of Mt. Diablo, but perhaps not rare in the southern 

 extension of that range, which still remains too little explored. 



I 



18. S. secuudus. Slender, sparingly branched above, 1 — 2 ft. high; 

 the long pinnately toothed or lobed lower leaves hispid-strigose, the 

 cauline leaves lanceolate, sagittate, entire or toothed, and, with the 

 branches, pedicels and pods, sparsely hispidulous with spreading short 

 hairs: racemes rather dense, wholly secund: fl. flesh-color, 4 lines long: 

 sepals sharply carinate, the keel hispid-ciliolate, the short tips greenish, 

 the remote lower one distinctly, the opposite uppermost one obscurely 

 unguiculate : petals, especially the iipper pair, with amijle purple-veined 

 crisped limb: upper i^air of filaments connate to near their tips, the free 

 parts scarcely divergent, the anthers reduced in size, but polliniferous : 

 pods 2 in. long, very slender, falcate-recurved on the divaricate pedicels, 

 the valves carinate-veined: seeds small, wingless. — Northern base of Mt. 

 Tamalpais. A very beautiful pale-flowered species, of well defined habit 

 and floral character, especially as regards the calyx, with its very narrow 

 and downwardly attenuate upper and lower sepals, the laterals being 

 broad, and yet at tips converging toward the middle upper one in the 



