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VOL. IV.] Contributions to Western Botany. 27 



deeply cleft wings, and longer calyx tube. It is a little 

 more robust and with larger flowers, but I have speci- 

 mens from the Buckskin Mountains, Northern Arizona, on the 

 border of Utah, with the calyx lobes one-half as long as the 

 tube, and not deeply cleft wings. My specimens of A. smposus, 

 named by Dr. Gray himself, show a great diversity in the lobing 

 of the wings. Specimens from Southeastern Utah, collected by 

 Miss Eastwood, have a short calyx and short teeth, but are 

 otherwise as in yi. calycosiis. I have given a full description of 

 A. calycosus in " Contributions No. 3," so that it is not necessary 

 to repeat the character of the pod, which differs in no respect, 

 when fully developed, from A. scaposus. I have compared the 

 type of Mr. Greene's A. candicans and find that it differs in no 

 respect from A. scaposus. 



Astragalus Hosackia:, Greene, Bull. Cal. Acad, i, 157. This 

 is a common form of A. Jiuniistratus. I have plenty of specimens, 

 gathered along with the usual form of A. humistratiis, that have 

 the pod of A. Hosackice and the general form of the leaves of 

 A. hjunisiratus. I have others with the leaves and general 

 aspect of A. Hosackicc. Mr. Greene's species seems to grow in 

 the shade, where the leaves become wider. The pod of A. 

 humistratzis varies greatly, being curved to a half circle or nearly 

 straight and short; it is also a little sulcale dorsally often. The 

 crowding of the leaflets and leaves is of common occurrence. 



Astragalus Giloisis Greene, Torrey Bull, viii, 97. This is 

 a very distinct atd interesting plant, but belongs to the Homa- 

 lobi. The keel is incurved and sharply acute, one-half a line 

 shorter than the wings, banner one to one and one-half lines 

 longer than wings, the keel exceeds the calyx teeth by a line 

 only; calyx tube one and one- half lines long, narrowly campanu- 

 late equaling the subulate teeth; bracts hyaline, acuminate, 

 lanceolate, one and one-half lines long, longer than the short 

 pedicel; calyx contracted at base; flowers in a head which is one- 

 half an inch long; pod flattened laterally, about two-seeded, 

 obliquely ovate-oblong, one-celled, no intrusion of sutures, thin- 

 chartaceous, dorsal suture about straight, ventral much arched, 

 the pod seems to be wrong side up but it is not so, sharp pointed, 



