556 Rvdberg : Rocky Mountain flora 



short and corymbiform, in fruit elongated ; sepals oblong, pubes- 

 cent, about 3 mm. long ; petals clawed, 5-6 mm. long, white or 

 pink ; blades broadly spatulate ; fruit 1 1-12 mm. long and about 

 1 mm. wide, tapering at both ends. 



This species is nearest related to S. americana, but differs in 

 the narrow segments of the leaves and the long narrow pod. It 

 grows on high peaks of Colorado at an altitude of 3,600-4,200 m. 



Colorado : Douglass Mountain, 1878, M. E. Jones 447 (type 

 in herb. Columbia University) ; Hindsdale Co., 1878, F. M. Pease; 

 near I ronton, 1899, C. C. Curtis. 



Sophia purpurascens sp. nov. 



Stem very slender, diffusely branched above, glabrous and 

 purplish ; lower leaves not known, having all fallen off; upper 

 leaves simply pinnate with linear-oblong divisions, slightly stel- 

 late ; racemes slender ; sepals broadly oblong, over 1 mm. long, 

 light yellow, almost equaling the similar petals ; pedicels ascend- 

 ing in fruit, 4-5 mm. long, 0.75 mm. thick ; fruit very slender, 

 5-8 mm. long, linear, 3-6-seeded, nearly cylindrical and tapering 

 somewhat at both ends, slightly torulose ; seeds in one row. 



This is perhaps nearest related to 5. incisa and S. leptophylla, 

 but differs in the slender purple stem, the diverging branches above, 

 the slender inflorescence, and slender short pod. It grows in the 

 mountains at an altitude of about 3,300 m. 



Colorado: Red Mountain, south of Ouray, 1901, Underwood 



& Selby 275. 



Sophia ramosa sp. nov. 



Stems 3-6 dm. high, finely but sparingly stellate, branched, 

 especially above ; branches ascending or diverging, forming with 

 the stem an angle of 45 or more; leaves once or twice 

 pinnate, sparingly stellate ; divisions linear or linear-oblong ; ra- 

 cemes oblong ; petals oblanceolate, pale yellow, slightly longer 

 than the sepals; pedicels in fruit 7-8 mm: long, ascending ; pod 

 somewhat clavate, 8-10 mm. long, erect or strongly ascending, 

 about 1 mm. thick ; seeds in two more or less distinct rows ; 

 styles almost none. 



This species is perhaps nearest related to 5. intermedia, but 

 differs in the spreading branching, the smaller and paler petals, 

 and the shorter pedicels and style. It grows in waste ground at 

 an altitude of about 2,750 m. 



Colorado: Pitkin, 1901, Underwood & Selby 413. 



