Lonchocarpi. 989 
by being reversed curved at tip, linear-oblanceolate to broadly lin- 
ear, 3-6 cm. long, 5-7 mm. wide above the middle, obeompressed 
ventrally and with a slight concavity but not bisulcate, cross section 
often flat to deltoid, hairy within, a little inflated, *chartaceous to 
leathery, apiculate to very acute at tip and narrowed to a very 
broad pseudostipe at bese. Ventral suture a little raised, dorsal 
impressed. Pod reddish to green. Common on the sandy mesas 
from 13 miles below Theodore, Utah, to Chepeta Well, Colorado, 
and the White river. Lower Temperate life zone. A. pinonis Jones 
is very liable to be this species when that species is better known, 
but so far the calyx teeth are very much longer and pod not ob- 
“compressed. 
214. Astragalus lonchocarpus Torr. Pac. R. R. Rep. 4 80 
(1857). Phaca macrocarpa Gray Pl. Fend. 36 (1849). Tragacan- 
tha lonchocarpa (Torr.) Kuntze, Homalobus macrocarpus (Gray) 
Rydberg. Pods about straight, 5-7 mm. wide, sharply acuminate at 
both ends and long-acuminate at base, broadly linear-oblanceolate 
to even linear-elliptical, faintly cross-ribbed, with both sutures very 
prominent when dry, fleshy and oblately oval in cross section when 
fresh and pods with woody fibers running lengthwise which appear 
as red dots in the pulp of cross sections; dorsal suture raised 
and nerve-like; stipe at least twice the calyx. Flowers many, pearl- 
white and rather fleshy, rarely purple, loose, horizontal to reflexed, 
1-1.5 em. long, with rather broad blades. Banner arched to 90-110” 
3 mm. beyond the calyx teeth in a gentle arc, 7 mm. longer than 
keel, oblique, narrowly oblong from a broad base; groove narrowly 
U-shaped, 1 mm. wide, 1.5 mm. deep and extending to calyx tips, 
shallower above and open. Wings linear but wider 2 mm. below 
tip, arched so as to cover the center of keel, 2 mm. wide, flat to 
keel but concave beyond it, not spreading, close-pressed to it and 
5 mm. longer. Keel bent in a sharp curve to 100°, with straight 
base, the erect part 3-4 mm. high and as long as the base, mostly 
purple-tipped but yellowish otherwise. Calyx tube 5-7 mm. long, 
nearly cylindric, hyaline, 2 mm. high, 1.5 mm. wide, with thickened 
and green bracteolate and oblique base, reddish, cleft a little deeper 
above, tapering at base into the pedicel which is reflexed in fruit; 
teeth slender to deltoid, about 2 mm. long, half the tube or less, 
broadly subulate, not spreading. Bracts very small, half as long as 
pedicels or less in fruit. Pedicels stout, strigose, 5-7 mm. long. 
Peduncles in flower longer than the spikes, in fruit often less, 1-3 
dm. long, not manifestly grooved when fresh but decidedly so when 
dry, strict and erect, subterminal, densely flowered above. Leaves 
leathery, fleshy when fresh, not over 8 cm. long. Leaflets none to 3 
pairs, linear to filiform, rarely wider than the green rachis and al- 
ways like it, 1.5-3 cm. long, distant, obscurely jointed to rachis, ses- 
sile, the rachis often leafless and then 5-8 cm. long, the end leaflet 
not conspicuously and rarely at all enlarged. Stipules distinct, or 
connate below, small. Stems many, conspicuously grooved, densely 
tufted, branched, tall, the branches not tangled, from a fleshy and 
erect taproot, the internodes 8 cm. long or less. Pubescence hoary, 
composed of wide, flat, very short and appressed hairs throughout 
except on the pods which are nearly smooth. It grows in poor an 
alkaline soil and has the habit of A. junceus but without the under- 
ground and-branching roots and grows in large tufts around alka- 
line seeps and similar slopes and washes. The peculiar rush-like 
habit with stems and leaves equally green cause it to be overlooked. 
‘rom Pioche, Nevada, northward to Ferguson Spring near Ibapah, 
, eastward from Pioche north of the Grand Canon along the 
‘and the Little = 
