256 ConUnbutions to Western Botany. [zoe 



inches long, secondary ones an inch long, or even all but the 

 central one absent; leaflets irregularly two to three-lobed and the 

 lobes entire to three to five lobed or toothed, and teeth rounded 

 and blunt, leaflets obovate, cuneate, or broader, one-half to two 

 inches long, seldom pubescent, glaucous or paler below; lower 

 stem leaves similar with shorter petiole; upper stem leaves 

 without a petiole; uppermost leaves reduced to simple or three to 

 five- lobed usually leafy bracts which are usually acute; the 

 development of the stem leaves depends upon the exposure 

 inversely. The whole plant except the leaflets is covered with 

 a glandular hairy pubescence which is scarcely visible at times 

 and at others is very pronounced, but is of no specific value. 

 It is most pronounced on the peduncles and young pods, and is 

 more evident above. The genus frequents open woods in the 

 East, and stream banks and moist mountain sides at rather high 

 .elevations in the West. 



•3f Limb of petal somewhat dilated above, oblong to rliomboidal, 

 large, at least Jialf as long as the sepals, and about equaling 

 fJie stamens, floiuers not red. Petals rounded, truncate or 

 emarginate. § Dilates. 

 -^ Stems tall, often three feet high, nearly glabrous beloiv; 

 sepals acute, spreading, rather thi7i, nectary small. 

 +- Spitrs long, straigJit, slender, tzco to four indies long, 

 not sJiorter than sepals, nectary very small, apparently 

 abortive; flowers lajge, one and one half to four inches 

 zuide, ascending; limb of petal four to six lines wide, 

 six to ten lonz or even more. . 



'<b 



A. asrulea, James. Sepals white or lavender, lanceolate to 

 broadly ovate, one to two inches long, occasionally tinged with 

 pink or yellow; flowers two to four inches wide, petal-limb six to 

 eight lines long, white to deep cream yellow, sepals and petals 

 both frequently veined with blue, fragrant. 



Abundant in Colorado at middle elevations 7000 to 11,000 

 feet altitude in all the mountains, mostly on moist mountain 

 sides; very abundant in the Wasatch and Uintas at 8000 to 

 10,000 feet altitude and therefore subalpine, also in the Pine 

 Valley Mountains in southern Utah; less abundant south and 



