258 Contributions to Western Botany. [ ZOE 
central Utah northward to British America. It also occurs in 
the Uinta Mountains, but does not seem to exist in Nevada or 
westward. Juneto August. At high elevations it hybridizes with 
A. cerulea, the flowers being intermediate in size with shorter 
and stouter spurs than cerulea, whitish or tinged with blue. 
++ Stems very short or none; flowers blue, small, one-half 
inch wide or less, spurs somewhat hooked, two lines or 
less long, shorter than the limb of the petal. 
A. brevistyla, Hooker. Flora Bor. Am. 1, 24. Stems six 
inches high or less, densely tufted, not surpassing the leaves, 
stem leaves petioled and scarcely differing from the others, 
pedicels two to three inches long, very slender; sepals oval and 
very obtuse and green to lanceolate, acute, and colored, four 
lines long three lines wide; limb of petal oblong, yellow, a little 
shorter than the sepals and a little longer than the stamens; 
earpels about an inch long, and styles in fruit two lines long, 
anthers narrowly oval and very small. 
High Alpine regions in meadows, Colorado and northward to 
the Arctic regions. Not seen in Utah or westward. 
A. Jonesii, Parry Am. Nat. 8, 211. Named for Captain Jones. 
Monocephalous, peduncle two to three inches long; leaves all 
crowded and common petiole absent or nearly so; leaflets small, 
obovate, entire, nine; spur almost obsolete. Probably a form of 
the above. 
Summit of Phlox Mountain, Wyoming. 
x x Limb of petgl not dilated above, usually with a wry short, 
triangular tip or narrower, styles four lines long,. 
flowers red, rarely yellow, at least the tip of the limb of 
the petal yellow or white, acute to nearly truncate, sepals 
acute, stamens usually much surpassing the petals, spurs 
rather stout, generally somewhat hooked, nectary large, 
flowers nodding, one to one and one-half inches wide, 
tall plants. § Rubescentes 
A. Canadensis l,. Spurs one-half to twice longer than sepals, 
three-fourths to one inch long; sepals ovate one-half inch long; 
petal limb oblong to nearly square, four lines long, two to three 
