CRUCIFEE^E. 17 



arcuate-spreading on the short pedicels: seeds oval, the upper half 

 narrowly margined. Mt. Hamilton. 



6. S. glandulosus, Hook. Pubescence and sinuately toothed foliage 

 of the last, but larger, 1 2%tt. high: racemes more or less inclined to 

 be secund: ji. very large, bright red-purple: sepals % in. long, ovate- 

 cymbiform, carinate, 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: pods 3 in. long, a line wide, arcuate -recurved: seed 

 narrowly winged. On clayey hillsides and banks, in the Oakland Hills, 

 and southward. 



7. S. Biolettii, Greene. Habit and pubescence of the last, but smaller 

 and more slender, the leaves glaucous beneath: racemes not secund: fl. 

 4 5 lines long: sepals very dark purple: upper pair of filaments much 

 the longest, united two -thirds their length, thence divergent, their 

 anthers half the size of those of the shorter stamens, apparently pollinifer- 

 ous: pods slender, suberect, hispid. Hood's Peak, Sonoma Co. 



8. S. pulchellus, Greene. Low and much branched, ^ 1 ft. high, 

 pilose-hispid: leaves linear-oblong or oblong-lanceolate, the cauline 

 sessile by a broad, partly clasping base, and with a few coarse and very 

 salient teeth: racemes rather dense, subsecund: calyx deep lilac-purple, 

 the sepals subequal, broadest at base, sharply carinate, the keel with some 

 bristly hairs: upper pair of filaments united almost throughout, their 

 subsagittate anthers little reduced, the other 4 stamens in very unequal 

 pairs: pods very narrow, hispidulous, spreading and slightly incurved. 

 Southern flanks of Mt. Tamalpais. 



9. S. hispidus, Gray. Stiff-hirsute or hispid throughout, only 3 6 in. 

 high, branching: lowest leaves* 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, 1^2 in. long, 1 line wide, straight, ascending: 

 seeds winged. Mt. Diablo. 



10. S. secundus, Greene. Slender, sparingly branched above, 12 ft. 

 high: the long pinnately toothed or lobed lower leaves hispid-strigose; 

 cauline 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: 



