CONTRIBUTIONS TO WESTERN Botany No. 17 29 
Ariz., May 6, 1930. A possible hybrid with Thurberi is from Alpine, Tex., 
Apr. 26, 1930. 
or speirocarpus. The locality, however, “No 793 Brandegee, eastern Wash- 
ington,” would tend to tie it up with specimens got by me in Bruneau, Idaho, 
and Stein’s mountain, Nevada, in 1930. In critical characters the description 
fails utterly. Then the absence of flowers in the type complicates things. 
The specimens collected by me show a very close relationship with A. speiro- 
carpus. On the other hand no one seems to know for sure what are flowers 
of speirocarpus, or its exact habitat. In my revision I put speirocarpus in 
the group of Gibbsii and collinus with stubby ochroleucous flowers. If that 
reference is right then sinuatus is a good species, assuming of course that my 
material is A. sinuatus. Without repeating the characters given by Piper, 
I will say that the plants have the habit of A. fallax, that is they are erect 
spreading. The flowers are about the size, color and shape of A. cibarius, 
that is narrow and not at all stubby, but with broad and short wings, and 
purple, but the calyx is that of Gibsii. The pods are conspicuously laterally 
flattened and sharp-ridged, almost winged on the sutures, and coiled into a 
complete or double circle or sometimes not into a third of a circle, and are 
or sandy areas. Since the localities in which this plant is found are so far 
apart, there will be no trouble in getting all its characters, but more study 
must be had on true speirocarpus. 
Lupinus platanophilus N. Sp. Plants low and caespitose after the fash- 
ion of Lyalii, from a perennial root. Proper stems simple, rarely branched 
below, erect or spreading, rather thick and fleshy, with the nodes aggregated 
and apiculate, 1 to 1 1-2 inches long and nearly half as wide. Peduncles 
about 4 inches long. Flowers light purple, about Smm. long, ascending on 
capillary pedicels about 4mm. long, with the silvery-hairy calyx deeply 2-cleft 
nearly to the base. Banner round and about 3 mm. long, abruptly recurved 
at calyx tips and purple-tipped, about 1 mm. shorter that the deltoid and 
very broad wings which cover it. Immature pods shaggy. The leaves are 
fleshy and hard to dry. The plants have the habit of L. concinnus. Grow- 
