32 Contributions to Western Botany. [zoe 



prominent and sharp edged externally, pod arched into one-third 

 to one-half a circle, erect. 



Specimens collected by Mr. Brandegee at Milford, Cal., June 

 26, 1892, are substantially those of Mr. Lemmon but calyx 

 gibbous, more cylindric; pods less acuminate, and stipe just 

 equaling tip of calyx teeth; pods shorter, slightly arched, both 

 sutures prominent, not at all sulcate or with only a trace of it. 



My own specimens gathered at Carson City, Nev., May 23, 

 1882, are exactly the type of A. Gibbsii. Those collected also by 

 me at Empire City, Nev., June 20, 1882, and distributed as No. 

 3829 have the flowers of A. Gibbsii but the calyx a little narrower; 

 pedicels as long or two lines long; leaflets six to ten pairs, like 

 those of Mr. I^emmon's specimens, short- woolly, and whole plant 

 canescent throughout; pods very short-pubescent, not at all 

 sulcate, cross-section about circular, pod an inch long, bent into 

 fully or more than a .semi-circle; stipe equaling or twice as long 

 as the calyx; pods oblong-linear, shortly and equally acuminate 

 at each end, stems branched above, a foot high. Other speci- 

 mens gathered at the same place have pods the same width as 

 the above but only one-half an inch long, very sharply acuminate; 

 stipe shorter than the calyx; pod slightly arched, otherwise as 

 above. 



Astragalus reairvns Greene. This is A. obsairiis Watson. I 

 have specimens of A. obscurus from Nevada collected by myself 

 with recurved pods, and also specimens from Northern Arizona 

 collected by me near Flagstaff in 1891 with the pods curved fully 

 as much as the type and with crimped edges. 



Astragalus adsiugens Pall. This species is in great need of a 

 new description for the lobes of the calyx are often as long as 

 the tube, the leaflets vary from linear lanceolate and one and one- 

 half inches long to oblong-elliptical and obtuse or acute. The 

 pods are one-celled, sulcate dorsally from one-fourth to one- 

 third their width and dorsal septum produced as much more into 

 the pod, but never two-celled; the flowers are purple or white. 

 My specimens were named by Gray. 



Astragahis circumdatiis Greene. Scytocarpi, and nearest to A. 

 Chamccleuce, but widely difl"erent from it. In uniqueness it ranks 



