205 
semble, closely, A. montanus and A. humillimus. It grows in crevices 
of flat rocks, in the San Rafael Swell region Utah, and bloomsin May 
and June, and fruits soon after (as does the species). 
165 Astragalus tephrodes Gray Pl. Wr. 2 45 (1853). Pods about 
half-oval-ovate, nearly half as high or wide as long, about 1 cm. long, 
ashy, normally ascending in short spikes, a little arcuate toward tip, 
sessile at the rounded base, weakly attached, rather finely cross ribbed 
and inclined to be sulcate below at both sutures and obcompressed at 
very base, cross-section obcordate to slightly didymous, both sutures 
thickened externally. In the type, whieh is based on two small speci- 
mens in fruit only, the pod is half-moon shaped, with straight ventral 
suture, sulcate dorsally and with flat and deltoid tip, hoary with mi- 
nute hairs. Other material from Socorro has pods from obliquely 
ovate to arcuate-lance-oblong, with triangular and flat tip about twice 
as long as wide and inclined to be sulcate at both sutures but with sim- 
ilar beak. Walls very fleshy when fresh but thin when dry. My own 
specimens from the Needles Cal. have pods more acute. The flowers 
in the type are described as about 1 cm, long and purple. In the So- - 
corro material and my own the flowers are 1-1.5 cm. long and purple 
tipped, like A. remulcus bnt shorter and smaller. They have the same 
short-cylindric calyx tube appearing campanulate in fruit, with teeth 
triangular and nearly half as long as tube. The calyx can hardly be 
called woolly though the appressed hairs are somewhat tangled. Pe- 
duncles about 1 dm. long, having the rather many flowers spicate. The 
bracts and pedicels are the same as in remulcus. Leaflets 7-10 pairs, 
eiliptical to oval, obtusish, contiguous or separated, about 1 cm. long, 
loosely silky with somewhat tangled long hairs. Leaves about 1 dm. 
long, with petioles shorter than the rachis. Stems slender and decum- 
bent or prostrate and with few nodes, as in remulcus, arising from slen- 
der underground root branches. It was described as a possible bien- 
nial. From the western base of the Organ Mts. New Mexico to the 
Needles Cal. Tropical, on benches. It seems to be rare. This species 
has some resemblance to A. Feensis. 
166 Astragalus Shortianus Nutt. in T. & G. Fl. N. A. 1 331 (1838). 
A. humilis Geyer. Pods from lanceolate to linear-oblong (even ovate 
in the variety), corrugated, cellular when dry, rounded at base, joint- 
ed to the calyx, inclined to be sulcate at both sutures below, acumin- 
ate, 2-7 cm. long, 10-15 mm. wide, rarely over 5 mm. high, somewhat. 
arcuate especially toward the mostly flat and ensiform triangular tip, 
broadly sulcate dorsally and mostly bisulcate ventrally, much obcom- 
pressed when mature, often round in cross-section when fresh, mi- 
nutely pubescent, not mottled, ascending, with ventral suture thicken-. 
