[Vol. 9 



296 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



California: Coyote Canyon, El Toro Mountain, 5500 ft. alt., 

 May 17-June 1, 15)01, H. M. Hall 189^ (Univ. Calif. Herb., 

 type) ; summit Nig?j;er Jim Hill, Cahuilla, May 17-June 1, 1901, 

 Hall (Univ. Calif. Herb.); El Toro Mountain, May, 1899, Hall 

 1171 (Univ. Calif. Herb.); vicinity of Winchester, April, 1902, 

 Hall 2908 in part (Mo. Bot. Gard. Herb.) ; between Elsinore and 

 Menifee, March, 1893, King (Univ. Calif. Herb.). 



C. simulans finds its closest allies in C. Cooperi, C. Coulteri, 

 and C. heterophyllus. From the first it is at once separable by 

 the longer pods and conspicuous hirsute pubescence. From the 

 last two the quite terete pods and yellowish flowers distinguish it. 

 The stigma in the new species is not so deeply 2-lobed as in C. 

 Coulteri. In general appearance the present species is quite sim- 

 ilar to Caulanthus lasiophyllus and on that account has received 

 its specific name. 



Doubtfully referred here is a specimen collected by Miss East- 

 wood from Painted Cave Ranch, Santa Barbara, California, April 

 25, 1908, No. 85 (Univ. Calif. Herb.). This has quite large, light 

 yellow flowers and sinuate-lobed, narrowly oblong, cauline leaves, 

 5-16 mm. long. A depauperate plant on the same sheet has much 

 smaller flowers and leaves. Further collections may prove this 

 distinct or increase our present notion of the plant's variability. 



11. C. Coulteri Wats. Bot. King's Exp. 27. 1871; Robinson in 

 Gray, Syn. Fl. N. Am. I 1 : 172. 1895. 



Streptanthus heterophyllus Gray, Proc. Am. Acad. 6: 185. 

 18G6, in part. 



S. Coulteri Gray in Wats. Bot. King's Exp. 19. 1S71; Greene, 

 Fl. Franciscana, 257. 1891. 



Annual, more or less densely hirsute-pubescent, especially to- 

 ward the base of the stem: stem erect, simple or sparingly 

 branched, 3-7 dm. high: cauline leaves from broadly linear to 

 oblong or oblanceolate, 4-8 cm. long, all but the lowermost am- 

 plexicaul at the base, sinuate-dentate; the upper lanceolate, sub- 

 entire: sepals purple in the bud, becoming lighter or yellowish in 

 anthesis, glabrous or hirsute, apparently very unequal in the bud, 

 scarcely saccate, 7-15 mm. long; petals light, conspicuously 

 veined with purple, broadly linear, crisped, much longer than 

 the sepals; stamens in three pairs, ventral pair longest, about 

 equalling the sepals, filaments united for about half or three- 

 fourths their lengths, anthers 1-2 mm. long, filaments of dorsal 

 pair somewhat shorter, free, anthers longer, filaments of solitary 



