108 Inflati 
Leaflets 8-10 pairs, narrowly oblong, obtuse to notched, cuneate below 
and long-petiolulate, 5-15 mm. long, not folded, thin, smooth. Stems 
ascending, about a foot high, very many, almost simple Stipules 
triangular, small, hyaline, thin, the upper reflexed. Growing along 
irrigation ditches and moist bare bottoms and among willows in gravel 
and clay, from Richfield Utah to the head of the Sevier. My material 
from Willow Spring south of Lee’s Ferry is probably this species. 
blooming in summer. 
52. Astragalus serpens Jones Cont. 7 641, 644 (1895) Phaca Ryd- 
berg. Pods oval-ovate, 2-2.5 cm. long and about 1 cm. wide and high, 
round in cross section, barely sulcate ventrally, papery and much 
mottled but not translucent, conical-beaked, the beak not longer 
than high and minutely apiculate, rounded at base, the stipe hardly as 
long as calyx tube. Flowers greenish-purple, about 7 mm. long, rarely 
half a dozen and pods mostly single to a peduncle, the raceme about 
1 cm. long and the stout peduncle only a little longer. Banner nearly 
round, about 3 mm. long, just equaling the wings and keel, abruptly 
arched to 110 degrees. Wings obovate-oval, very oblique, about 3 mm. 
wide and 4 mm. long, just the shape of the keel. Keel blunt, the 
base a trifle arched; the tip incurved to erect and with a minute boss, 
about 3 mm. high. Calyx narrowly campanulate, the tube 3 mm, long, 
teeth subulate, 2 mm. long. Bracts hyaline, about 2 mm. long, ovate. 
Pedicels, 2-4 mm. long, reflexed or spreading. Peduncles axillary. 
Leaves 3-4 cm. long, narrow, thick and stiff, many (the internodes 
rarely 2 cm. long), the relatively stout petiole about half the whole. 
Leaflets about 6 pairs, elliptical to oval, folded, thick, rounded and 
very obtuse, about 5 mm, long, contiguous. Stems ceespitose and 
many from a thick and woody root, prostrate, freely branched, relative- 
ly stout, rarely 2 dm. long. Stipules brown and thin, deltoid, con- 
spicuous, not connate, 3-4 mm. long. Whole plant ashy with short 
joosely appressed and rather tangled hairs, the calyx black-hairy. 
Loa Pass and Belknap Mt. Utah on high rocky ridges. Apparently 
in the Elk Mts, Utah. The material of A. triflorus from the San 
Rafael Swell Utah much resembles this but the pods are sessile and 
leaflets narrow. Middle Temperate life zone. Blooming in July. 
53. Astragalus nutans n. sp. .Pods as in A. serpens but trans- 
lucent and only a little blotched, nearly globose. Flowers purple 
with claws about 1 cm. long, few and shortly racemose, horizontal 
to reflexed. Banner about 5 mm. long, oval, abruptly arched at end of 
calyx to ,45 degrees, with sides reflexed about 1 mm. wide below, 
white snot purple strined. Wings obliquely obovate, rounded, 2 mm. 
shorter than banner and 1 mm. longer than keel. Keel with straight base 
and then rounded to a little more than erect, the tip nearly square 
at the corner, about 3 mm. high. Calyx tube campanulate, about 
3 mm. long and 2 mm. high, the base straight, the upper side arched, 
inserted a little below the middle at the fleshy base, cleft deeper 
above and oblique at tip, the teeth triangular and about one-half to 
one-third the tube, pubescent with white and black hairs intermixed 
and closely appressed. Pedicels stout, 2-4 mm. long in fruit, rather 
longer than the ovate bracts. Peduncles 3-4 cm. long but shorter 
than the leaves, the floral rachis about half as long, in the upper 
. axils. Leaves 4-5 cm. long, only the lower petioles as long as leaf 
rachis. many (the internodes 1-3 cm. long). Leaflets 3-6 pairs, el- 
liptical, cuneate. below, obtuse, 1-1.5 cm. long, often folded, not very 
thick. Stems 1-3 dm. long, rather slender, branched throughont, 
several from the tip of a slender erect not woody root, blooming the 
second year. Stipules small, triangular, rather hyaline, about 3 mm. 
long. Whole plant minutely ashy with closely appressed straight 
hairs. Growing in sand and blooming in May. Tropical. Providence 
Mountain eastern California. This has the habit of A. triflorus var. 
