CONTRIBUTIONS TO WESTERN BOTANY. 65 1 



elliptical, obtuse, usually about 3" long, finely appressed- 

 pubescent, with hairs fixed by the middle; petioles longer 

 than the rachis, 2}^-$' long; pods prostrate, oblong-ovate, 

 cross-section almost round, 3" wide and 8" long, apiculate, 

 straight, very fleshy, inner wall woody, the outer composed 

 of a pulp over }4" thick which at the ventral suture is i" 

 thick, the ripe pods when dry have a thickened and raised 

 ventral and dorsal suture, the latter the smaller, the gen- 

 eral appearance of the pod being that of A. Missowriensis, 

 the middle of the pod is swelled longitudinally so much 

 so that the pod seems to be 4-sided, but the two sides are 

 always rounded and not acute as they are at the sutures, 

 pods reddish ; seeds many, filling the hairy cavity, long 

 stalked; calyx laterally flattened and much deepei; cleft 

 above; teeth unequal; banner white, bent rather abruptly 

 at a point 3^" beyond the calyx tips to 45° and arched 

 above, oblong-oval, sides reflexed at the keel i" deep, 

 and banner usually fiddle-shaped by the sides not being 

 reflexed above and below, notched ^" deep; sulcus de- 

 cidedly narrowed below and nearly V-shaped, i" deep, 

 3^" wide; above it is i" wide and U-shaped and vanishes 

 about i" below the tip of the banner; banner water-lined; 

 wings linear -oblong, arched a trifle, notched below the 

 apex, as wide at the blunt apex as below, close -pressed 

 and convex to the keel to a point Y^" below the tip of the 

 keel, then spreading and tips horizontal and incurved and 

 often touching each other, the concave side is downwards, 

 pink -purple and streaked with darker color, y>," wide; 

 keel blunt and rounded at the apex to 95°, purple-tipped, 

 i" high and nearly as much shorter than the wings; calyx 

 tube Vo," thick, i" wide and 3" long, the upper side a 

 little convex, lower straight, oblique at base and a little 

 thickened there ; pedicels very short and as long as the 

 bracts; the stems are usually 2-6' long. 



