﻿CONTRIBUTIONS TO WESTERN BOTANY. 673 



oval-ovate at least, always acute and often acuminate. I 

 have tried in vain to separate the forms into valid species. 

 As a rule the sutures meet near the upper side of the pod 

 by the great intrusion of the dorsal suture, but sometimes 

 they do not quite meet, especially when old, pods often 

 didymous by being deeper sulcate than usual. 



Astragalus lentiginosis var. diphysus (Gray, PI. 

 Fend. 34, 1849. This includes all the purple and large 

 flowered forms of eastern Nevada and Utah to Colorado 

 and New Mexico and south to Arizona having membran- 

 ous to chartaceous pods. 



Astragalus lentiginosus var. McDougali (Sheldon, 

 1. c. 9, 169). This seems to include A. Rothrockii Shel- 

 don, 1. c. 9, 174. This includes all forms with small and 



A. lentiginosus var. cuspidocarpus (Sheldon, 1. c. 

 9, 147). This includes all forms with acuminate, long 

 and coriaceous pods. It is described by Mr. Sheldon as 

 i-celled, but authentic specimens from Leiberg's collec- 

 tion named by Mr. Sheldon are 2-celled. The range of 

 this variety is northward, while the var. Mc Do it gait is 

 mostly southward. 



No. 5627m. July 13, 1894, Ephraim, Utah, in clay. 

 6000 alt. 



This plant is very nearly like the type in pubescence, 

 the leaves being rather thick and almost wholly glabrous, 

 from almost obcordate to obovate emarginate; the pods 

 : plants in the width ( 



less tha 



n |-2" wide, but always 2-celled by being deeply 



sulcate 



ventrally, the walls are chartaceous, very deli- 



cately v 



eined externally with parallel veins which throw 





v veinlets which connect with each other, the pods 



are per 



fectlv smooth with a triangular, incurved, short 



