Rydberg: Studies on the Rocky Mountain Flora 267 



shining, brownish black with a lighter midrib, lanceolate, acute, 

 3-4 mm. long : perigynia lanceolate, tapering gradually into 

 a long beak, with the beak about 5 mm. long, dark brown ; 

 staminate flowers at the base and mixed with the pistillate : upper 

 portion of the wings and the beak scabrous on the margins ; 

 teeth at the apex of the beak very short, subulate : styles 2 : achene 

 oblong, lenticular, nearly 2 mm. long and fully 1 mm. broad. 



This species is nearest related to C. f estiva and has been labeled 

 C. f estiva Haydeniana, but it is not the same as the original of 

 that variety, which has broadly ovate perigynia. C. ebenea differs 

 also from all forms of C. f estiva in the form of the perigynia and 

 in the dark glossy color of the bracts and perigynia. 



Colorado: Pikes Peak, 1900, F. Clements (type); Windy 

 Point, 1900; Mt. Harvard, 1896, 7/ Grecian Bend, 1896, Bot- 

 tomless Pit, and Saddle, Clements ; between Cheyenne Mountain 

 and Seven Lakes, 1896, E. A. Bessey ; Ironton, 1899, C. C Curtis ; 

 Telluride, 1894, F. Tweedy \ 194 ; Chambers Lake and Cameron 

 Pass, 1896, C. F. Baker ; Clear Creek Canon, 1878, M. E.Jones, 

 267; Silver Plume, 1895, Rydberg, 2460; Pagosa Peak, 1899, C. 

 F. Baker, 2jj. 



j 



Streptopus curvipes Vail sp. nov. 



Simple, glabrous, except the margins of the leaves and the 

 peduncles. Stems 1-3 dm. high, from a slender rootstock cov- 

 ered with few fibrous rootlets : leaves sessile, oval or oblong- 

 lanceolate, 3-8 cm. long, acuminate at the apex, rounded and 

 slightly clasping at the base, 3-5 -nerved, the margins finely gland- 

 ular-ciliate : flowers 3-5, solitary: peduncles not geniculate, 5-15 

 mm. long, glandular-pubescent : flowers pale purple or rose- 

 colored : perianth-segments lanceolate, 5-7 mm. long, minutely 

 glandular-pubescent on the inner surface : anthers 2-beaked ; 

 beaks slender, about half the length of the anther : style 3-cleft, 

 the spreading branches stigmatic along the inner side : berry glo- 

 bose, when mature brick red, 7-9 mm. in diameter : seeds clavate, 

 3-4 mm. long, with many cross-striate ridges. 



Differs from Streptopus roseus in its simple habit and the non- 

 geniculate and much shorter peduncles. The beaks of the anthers 

 seem to be a trifle longer than in 5. roseus. It is closely related to 



ip 



The 



flowers of the latter species are not known. 



June to J 



