CONTRIBUTIONS TO WESTERN BOTANY No. 17 ZF 
that may be a hybrid but the pods are too small. I have often seen them 
growing side by side but without any sign of intergrading. 
It is a short lived perennial, with many stems from the same root and 
spreading out to form a mat at times two feet in diameter, the central stems 
being erect. I was in error on page 102 of my monograph in saying that 
it grows in the Lower Temperate life zone, for it is found only in the 
Tropical. It a! on sandy plains. My collection are east of Lords- 
burg, N. M., May 5, 1930. Foot of Ramsey Canon, Huachuca Mts., April 
Oo, 3930.) 4 saw it in several other places but did not collect it. Miss East- 
wood also collected it at Silver City, New Mexico 
Astragalus oye Gray. This plant seems to include playanus 
Jones. At least I can find no permanent character to separate them, while 
there seems to be an intergradateion toward triflorus D. C. This plant is 
quite common on sandy places and on plains throughout southern Arizona and 
New Mexico. It is certainly a short-lived perennial blooming the first year. 
Astragalus lentiginosus var. palans Jones. I very unexpectedly found 
this on the Papago Reservation west of Tucson, May 7, 1930. 
Astragalus remulcus Jones. It is quite possible that this is too near 
Pephragmenus Jones, but the pods are too acute. e plant is manifestly 
near to argophyllus but I thing distinct from it because of the smaller flowers 
and habit. I have it He Silver City, N. M., May 4, 1930, just in the edge 
of the ee life zon 
eee is (Gray) Jones. I have this in exactly typical mater- 
ial from Texas Canon, near Dra, ragoon, Arizona, May 6, 1930. It grows flat 
on the groun ne in ae gravel and is perennial. Mouth of Ramsey Canon, 
Arizona, April 6, 
Astralagus Rhea s H. & A., growing in sandy places 40 miles 
north of Tucson, Arizona, April 5, 1930. 
Astragalus Nuttallianus D. C. I have this in half a dozen rip 
forms but I do not think they deserve varietal rank. Sonora, Tex., 
1930; Rock Springs, Tex., Apr. 16, 1930; Sierra Blanca, Tex., pe 11, 
1930. 
Astragalus mollissimus Torr. Hope, N. M., May 2, 1930. This seems 
typical. It is a robust plant a foot and a half high, with large and purple 
flowers, and cylindrical pods arcuate somewhat and cross-nerved and sulcate 
at ore ne and linear-oblong and apiculate, rigid. 
galus ene Watson. oe sone! = be the same as the species 
an Sethe: by Prof. Cory. Ic y valid distiction between 
this and A. rad ecu The pod is baal erm instead of narrowly so, 
and the flowers are yellowish. Rydberg describes A. mollissimus as being 
“caespitose” but the plant is simply densely sve like all the other allied 
species. The best that could be done with it would be to call it a variety of 
mollissimus. Ozona, Tex., Apr 13, 1930. 
Astragalus Bigeloyii Gray. This plant varies from mollissimus in the 
