268 Contributions to Weste7ni Botany. [zoe 



even to the pod shortly villous tomentose; leaves about four 

 inches long, the petiole being one-third of it; leaflets eight to 

 fifteen pairs, oval to elliptical, four lines long, greener above; 

 peduncles including the rachis of the short spike equaling the 

 leaves, stout, sulcate, ascending; bracts three lines long, ovate, 

 scarious; flowers nearly sessile, six lines long, light purple, six 

 to ten in a close raceme or short spike; calyx woolly, four 

 lines long, teeth one-third the tube, subulate; keel two lines 

 longer than the calyx and teeth, barely acute, incurved to one- 

 third circle, purple tipped; wings about the same length as keel; 

 pod an inch long, oblong, nearly straight, base rounded and 

 jointed to a very short stout stipe one-third a line long, apex prow- 

 like and abruptly acute (like A. Preusii), dorsal suture very 

 slightly impressed, very narrow externally, ventral suture very 

 thick externally, not impressed but pod often slightly bisulcate 

 ventrally, suture one-half a line thick externally and widest in the 

 middle of the pod; pod one-celled, three lines wide, very thick 

 walled (one-twentieth inch thick in the dried specimen), inner wall 

 dense, outer spongy; pod wrinkled longitudinally and obscurely 

 so transversely; pubescence of pod minute but rather close and 

 tomentose; hairs of the plant very slender, attached by the base 

 and nearly smooth. This plant at once suggests A. glareosns, 

 Missouriensis, and Shortianus, but differs from them all in 

 apparently good characters. I doubt if any connecting forms 

 have ever been known that would place this as a form of A. 

 Shortianus. 



This was gathered on the summit of the Pinal Mountains, 

 Arizona, May 26, 1890 in rocky places. I have been inclined to 

 place it as a form of A. Chamcsleuce and the latter plant I think 

 is the same as A. glareosus the older species, but I now regard it 

 as a good species. It is in my sets recently distributed. 



1/ Astragalus Purshii Douglas. The very imperfect description 

 of this plant given in Flora N. A. T. & G. is manifestly the 

 type as it exists in the great region which it covers, but there 

 are two errors in the description, the flowers are not one and one- 

 half inches long and they are not yellow. Others have followed 

 the same error as to color of the flowers, being led astray by the 

 color in the herbarium and by old flowers; the flowers are white 



