130 Alpinı, 
and very oblique, the tip abruptly hooked and deltoid and ending in 
the long subulate style which is at right angles to the body, the 
ventral suture very concave, and the dorsal suture arched to a half 
circle and mostly sulcate to the middle and the ‘suture a trifle pro- 
duced as a thin edge, pod about 3 mm. high, rarely reflexed, very 
short-stipitate, puberulent, with ventral suture a mere line. Flowers 
white, veined with purple, about 5 mm. long, generally 2 at the end 
of the capillary peduncle. ` Banner nearly round, about 5 mm, long ab- 
ruptly arched at end of calyx tube to erect or more, deeply notched, 
with sides but little reflexed. Wings broadly oblanceolate, 2 mm. wide, 
much arched and nearly as long as banner. Keel oblong and incurved to 
nearly a half circle from the base, much shorter than the wings and 
barely surpassing the calyx teeth, purple, much rounded at tip and up- 
per corner about square. Calyx tube about 1 mm. long, and about as 
long as the subulate arched teeth, almost turbinate, nigrescent, acute 
at base, equally inserted on. the filiform pedicels which are 4-6 mm. 
long and longer than the subulate and minute bracts. ^ Peduncles 
about 5 cm. long, arched. Upper leaves sessile, the lower conspicuous- 
ly petioled, 5-8 cm, long, with filiform and tapering rachis. Leaflets 
5-6 pairs, about oval, inclined to be shortly-cuneate below, 5-7 mm. 
long, thin, all about the same size, the terminal one often opcordate, 
minutely appressed-pubescent. Stems 2-3 ft. long, almost filiform, with 
many internodes and the upper ones about as long as the leaves. Upper 
stipules the largest, triangular, 4-6 mm. long, Stems many, from a 
slender erect root which is much branched at the crown, as in A. 
villosus. In gravelly places in moist canons of northern Colorado 
from Canon City northward. Middle Temperate life zone. 
Astragalus sparsiflorus var. majusculus Gray Proc. Am. Acad. 6 
206 (1864.) * Pods oblong-oblanceolate, about 2 cm. long, somewhat 
falcate, with the tip straight and not hooked and with suture convex 
at tip. Flowers racemose and about 6. Leaflets 6-8 pairs, elliptical 
to cuneate-oblong, fully 1 cm. long, long-petiolulate. Stems about a 
foot long and much branched. At first sight this seems like a well 
defined species, but it intergrades and often grows with the species. 
Mountains of Colorado’ west of Denver and Boulder and in Platte 
Canon. This is the normal well developed form! `. 
