18 Contribution* to Western Botany. 



bracts; pods with ventral suture very convex and raised, rarely 

 sulcate dorsally, pods explanate on ripening by opening along 

 the ventral suture from base to apex, septum standing up as a 

 very thin hyaline membrane from rudimentary to x /q, a line high, 

 pods membranous, lunate to oblong-lunate, 4 to 6 lines long; 

 peduncles long; stems slender; leaflets long-petiolulate. A. 

 glabriusculus is also explanate and septum a mere edge but evi- 

 dent. 



" Astragalus Mulford^e. Boise City, Idaho, June 7th, 1892. 

 A. Isabel Mulford. Prostrate perennial; stems slender, much 

 branched, nodes about an inch apart, branches seemingly ap- 

 pressed, a foot high; stipules subulate, adnate, green, not con- 

 nate, 1 to 2 lines long; leaves with filiform rachis and short 

 petioles, 2 to 3 inches long; leaflets scattered, linear, 6 to 8 pairs, 

 2 to 3 lines long; plants almost glabrous except the sparsely 

 pubescent calyx and young parts; peduncles with rachis of in- 

 florescence filiform, 6 inches or less long, proper peduncle less 

 than half the whole, subterminal; flowers many in a long raceme 

 2^ lines long, arched but keel nearly straight; pedicels and 

 bracts minute, in fruit slender and a line long; calvx hemispher- 

 ical not oblique below, ^ line long; teeth green, subulate, nearly 

 as long; tip of keel incurved at right angles, erect part as long 

 as base and straight, acutish, a line high; wings narrowly ob- 

 long, narrower than keel, much arched, half a line longer than 

 keel; banner abruptly bent to no degrees at calyx tips, ovate, 

 sides reflexed especially at tip; flowers ascending or reflexed; 

 pods pendent on slender stipe which is 1 to i 1 /? lines long, not 

 jointed, outline oblong, body 4 lines long, 1^ lines wide, abruptly 

 acute at each end, edges crimped, except at full maturity, and 

 green, ventral suture much arched, dorsal nearly straight and 

 sulcate to the middle of the pod, suture intruded the rest of the 

 way, and 2-celled, cross section of pod about deltoid and sharply 

 so with concave sides, pods membranous, not inflated, puberulent 

 only when young, about straight, nearly the shape of A. Winga- 

 tensis in outline. This belongs close to A. recurvus Greene. 

 Another specimen is referred here with much doubt collected by 

 Cleburne below Weiser May 6, 1883. 



