RocKv Mountain Flora 149 



Colorado: Larimer county, 1895, Crandall &■ Coiven, /j 

 (type in herb. N. Y. Bot. Garden) ; Villa Grove, 1 896, F. Clements, 

 338 ; Middle Park, 1861, C. C. Parry, 83 ; Baxton's Ranch, 1890, 

 Craudal/, 13^^. 



Montana: Lima, iSgi^, Rydberg. 



Delphinium diversicolor 



Perennial with a thick fleshy root, the branches of which are 

 often fusiform : stem about 4 dm. high, simple, strict, densely vis- 

 cid-pubescent above : leaves finely pubescent, palmatcly dissected 

 into linear lobes ; petioles of the lower leaves 3-5 cm. long, slightly 

 dilated below ; segments 1-3 cm. long, about 2 mm. wide : inflor- 

 escence a narrow raceme ; pedicels .5-1 cm. long, or in fruit 1.5 

 cm., densely viscid, almost erect: sepals dark blue, oblong-oval, 

 obtuse, 10-13 iTini- long, slightly pubescent ; spur almost straight, 

 horizontal : petals all white with blue veins and yellowish below ; 

 the upper about 5 mm. long, obliquely spatulate, obtuse ; the lat- 

 eral ones slightly longer, curved ; the blades deeply 2-cleft ; each 

 lobe of the form of one third of a circle : follicles densely hairy. 



This species is perhaps nearest related to D. simplex and D. 

 Burkei. From the former, it differs in white lateral petals and the 

 pubescent leaves, and the latter is described as subscapose. The 

 type was collected in a bog, at an altitude of 2000 m. 



Montana: Rattlesnake Creek, Beaver Head county, 1887, 

 Frank Tweedy, 3^ (type in herb, Columbia University). 



Aconitum tenue 



Perennial with small tubers about 8 mm. long and 4 mm. 

 thick : stem very slender, about 3 dm. high : leaves few ; the lower 

 with petioles 5-8 cm. long, the uppermost subsessile : blades 

 glabrous, thin, shining, almost pentagonal in outline, 5-7-divided to 

 near the base ; divisions rhombic in outline, 3-cIeft and the lobes 

 oft.en again cleft, the ultimate divisions oblong-linear to linear-lan- 

 ceolate, acute : inflorescence racemose, 2-6-flowered : pedicels 

 erect and bent near the glabrous blue calyx : hood 15-18 mm. 

 long, boat-shaped, sHghtly saccate, almost semicircular in outline ; 

 lateral sepals rounded ovate, only slightly oblique, 10-12 mm. 

 long; lower sepals oblong, obtuse at the apex, 8-10 mm. long : 

 fruit unknown. 



The type was collected in a damp canon among rocks at an 

 altitude of about 2000 m. It is perhaps nearest related to the 

 Alaskan A. delphinifolmm. 



