﻿Related to A. arrectus. Perennial; proper stems woody 

 below, a few inches high, then branched in tufts, and 

 branched i' or less long, covered with hyaline, imbricated, 

 glabrous stipules 3" long, adnate, not connate, subulate tri- 

 angular; leaves filiform, 6' long, petiole and rachis equal, 

 tapering to a needle-like but not pungent point, erect; leaf- 

 lets about 4 pairs, nearly filiform, 9" or less long, deciduous, 

 reduced toward tip of rachis, distant; peduncles subscapi- 

 iorm, 1-1 %° high, erect, straight, thick, striate, noriferous 

 on the upper fourth ; flowers racemose, ascending, usually 

 ochroleucous ; pedicels stout, ascending, 1" long, equal- 

 ing the subulate bract; calyx cam .:-. 

 about double the subulate teeth, hyaline; pods linear- 

 oblong, 1' long, 2" wide, 1" high, shortly-acute at both 

 ends, a little arcuate, ventral suture thick and prominent 

 externally, a little concave, dorsal suture convex, thin, 

 broadly sulcate, intruded as a thin hyaline partition half 

 way to the ventral suture, or at times almost touching 

 the ventral suture, partition absent at the tip of the pod, 

 walls of pod coriaceous, fleshy when green; stipe nearly 

 double the calyx tube, thick especially above, pods erect. 



To this I would also refer a more caulescent specimen 

 from Spipen River, Washington, Wilkes' Exp., National 

 Herbarium. 



Astragalus, arrectus var. scaphoides. Dry sage- 

 brush areas, 5500 alt., Beaver Head County, Montana, 

 on hills west of Clark's Canon, July, 1888. Very coarse 

 and stiff, apparently 2 high or more, ascending, stems 

 3" thick; peduncles i c long, coarsely grooved; leaflets 

 about 10 pairs, elliptical, 1' long, ashy below, glabrous 

 above, leaves 6' long, proper petiole short; pods almost 

 exactly those of A. asclefiadoides, but 2-celled except at 

 apex, obcompressed, 1' long, coriaceous, on a stipe 9" 

 long, which is arcuate so that pod is erect, pods H thick 



