rouo-scıerocarpi. 149 
cles not longer than the leaves, slender, 3-8 em. long, strict. Leaves 
6-8 cm. long, rather close-pressed to stems, the lower the smallest, 
often very small. Leaflets 7-10 pairs, the upper ones sharply acute, 
narrowly elliptical to linear, thick, the largest 1-2 cm. long, the 
smallest often minute and very broad and obtuse, 1-3 mm. wide, in- 
ciined:to be smooth above, and ashy-white below, the hairs short, wide, 
close-pressed. Stipules subulate, almost free, reddish. Internodes 
short and stems therefore leafy, 1-2 ft. long, rather rigid, somewhat 
sulcate, simple or branched, almost smooth. Plants growing in 
sany soil inclined to alkali among junipers and bloom in April and 
May. Lower Temperate life zone. Cobre Nevada with purple flow- 
ers. Fort Hamilton near Kanarra Utah and south to the Grand 
Canon and Kanab. 
Astragalus tetrapterus var. Capricornus N. Var. Flowers purple, 
about two thirds as long as in the type and petals less elongated, in 
loose heads. Leaves nearly smooth or equally ashy, inclined to be 
narrower and shorter, upper leaflets inclined to be narrow and pun- 
gently acute. Pods arched mostly into a circle and wings more de- 
veloped, mostly mottled. Growing in loose soil among the sage- 
brush at Cobre Nevada, in dense tufts about a foot high from a woody 
root. 
104. Astragalus sclerocarpus Gray Proc. Am. Acad. 6 225 (1864). 
Phaca podocarpa Hooker. Pods hoary when young, nearly glabrous 
when ripe, not mottled, from lunate and about 1 cm. long and tri- 
angular acute, to falcate to one third circle, long-pointed and 2.5 cm. 
long; conspicuously flattened when young throughout laterally, nearly 
1 cm. high from tip of suture to suture, in age the body becomes much 
cbeompressed in the middle only and its cross section is oblately 
oval when dry, it is circular when fresh and without a trace 
of wings and is green. The stipe is twice the calyx to 2.5 em. long and 
falcate, stout. The beak is short and stout or acuminate, upcurved. 
Pods about the shape of A. pachypus but with slender stipe. The 
flowers are white or tinged with purple and delicate (not thick as in 
Gibbsii), base of petals the more colored. Banner abruptly erect from 
a. point about 3 mm. beyond calyx tube, ovalovate, the erect part 
about 7 mm, long, as you look at it the banner is deltoid or short-oblong 
by the sides being reflexed to the midrib throughout for a space 2 mm. 
wide or more. Sulcus U-shaped below and shallowing upwards to a 
mere groove. Wings narrowly oblong, concave to keel, close pressed 
Ao it and flaring beyond, arched about 15 degrees gently, narrower than 
keel, rounded, 5 mm. longer than keel and little shorter than ban- 
ner, 2 mm, wide. Keel with straight base, the tip shortly arched to 
100 degrees, very obtuse, purple. Calyx tube about 5 mm. long, with 
straight base and upper side arched, cleft deeper above, somewhat 
` narrowed and fleshy below and obliquely attached but stipe in line with 
base, triangular teeth about 1 mm. long. Peduncles subterminal, 
1-1.5 dm. long, stout, racemosely flowered above the middle and elon- 
gating in age. -Bracts minute. Leaflets 6-9 pairs, broadly linear 
when flat but mostly folded, 1-1.5 cm. long, weakly attached and soon 
falling. Petioles about as long as the internodes and shorter than the 
leaf-rachis, persistent and rather rigid. Stipules ovate-acuminate, 
very small. : Stems rather weak and subdecumbent, freely branched 
throughout, about 6 dm. long, the upper stems very weak and often 
aborting, plants soon wilting and not fleshy thickened as in most of 
the group, inclined to be hoary with minute pubescence, the older 
leaves less so. In the Columbia Basin only, mostly along the Columbia 
from Umatilla to the Dalles and north to Ellensburg, near the Mal- 
heur river Cusick. It grows on sand dunes. spp RU T 
105. Astragalus bicristatus Gray P. A. A. 17 75 (1883). Pods - 
with apex much arched, hamate-incurved, triangular-acute, narrowly — 
eblong, larger above the middle, body about 1-2.5 em. long; not sulcate, _ 
