Rocky MounTAIn FLorRa 149 
CoLorapo: Larimer county, 1895, Crandall & Cowen, 15 
(type in herb. N. Y. Bot. Garden); Villa Grove, 1896, F. Clements, 
338 ; Middle Park, 1861, C. C. Parry, 85 ; Baxton’s Ranch, 1890, 
Crandall, 1547. 
Montana: Lima, 1895, Rydberg. 
VDelphinium 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, palmately 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 mm. 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. 
Burke, 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, 34 (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—§ 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-cleft and the lobes 
often 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, slightly 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 cafion among rocks at an 
altitude of about 2000 m. It is perhaps nearest related to the 
_ Alaskan 4. delphinifolium. 
