~ ASTRAGALUS. LEGUMINOS2. 153 
from a perennial root, branching, sparsely cinereous-pubescent: stipules 
subulate, acuminate, 2-3 lines long; leaflets 13-17, linear to linear-spatu- 
late, 6-8 lines long: peduncles much exceeding the leaves; racemes many- 
flowered, dense; flowers yellowish-white, spreading, on very short erect 
dicels: calyx cylindrical, subgibbous at base, 3-4 lines long, white-pu- 
Reoont, the short teeth triangular: pods oblong, turgid, acute at both ends, 
slightly curved, 6-8 lines long, erect on along slender stipe. On alluvial 
hillsides along the Columbia river and its tributaries above The Dalles. 
A. filipes Torr. Bot. Wilkes 278. Stems slender, erect, 1-2 feet high: 
stipules triangular, a line long, acute: leaves 3-6 inches long, the slender 
rachis channelled; leaflets 7-15, remote, linear, 4-8 lines long, less than a 
line broad, finely pubescent: peduncles much longer than the leaves; 
flowers numerous, in an elongated narrow raceme, yellowish to nearly 
white, erect or spreading on slender pedicels; bracts subulate, not as long 
as the pedicels; calyx cylindrical, 2 lines long, pubescent with minute 
black hairs, the narrow teeth about 14 as long as the tube: pods elongated- 
oblong, 9-15 lines long by 2 lines or more broad, abruptly acute at both 
ends, straight, on a slender stipe 6-8 lines long, glabrous and shining, 
finely reticulated, flat, spreading or pendent. Plains and hillsides, eastern 
Oregon and Washington to Nevada. 
A. Bourgovii Gray 1. c. 227. Stems short, numerous, ‘from a thick 
perennial root, thinly strigose-pubescent: leaflets 11-13, lanceolate, pubes- 
cent beneath, smovth aboye, 1-2 lines long: peduncles much longer 
than the leaves, loosely 3-7-flowered ; calyx cylindrical, 2-3 lines long, pu- 
bescent, the subulate teeth half as tong as the tube: pods oblong, some- 
what obcompressed, curved downward, mottled, pubescent, obliquely 
rounded at summit, 6-8 lines long, on a stipe shorter than the calyx. On 
rocky hillsides, eastern Oregon to Brit. Columbia. 
A. maultiflorus Gray 1. c. 226. Perennial, somewhat glabrous: stems 
a foot high, numerous, ascending, slender, branched: stipules dark-col- 
ored, the lower ones sheathing; leaflets 13-21, 3-6 lines long, linear or. 
narrowly oblong, acute or obtuse: peduncles not exceeding the leaves, 
loosely few-flowered; flowers ochroleucous, small, 2-3 lines long; calyx 
campanulate, the teeth shorter than the tube: pods 4-6 lines long, .charta- 
ceous, flat, glabrous, oblong on a stipe’ about as long as the calyx-tube, re- 
flexed, 6-ovuled, 2-4-seeded. Eastern Oregon to Brit. Columbia, Minne- 
sota, Colorado and California. ; 
A. tegetarius Watson Bot. King 76. Canescent with a ‘silky pubes- 
cence: stems cespitose, 2-6 inches long, numerous, branched, from’ a much 
branched perennial caudex, procumbent: stipules membranaceous, mostly 
acuminate, sheathing; leaflets.7-9, 2-3 lines long, linear, acute: peduncles 
slender, about equalling the leaves, 1-3-flowered: flowers small, 2-3 lines 
long, ochroleucous, the keel purplish; calyx-teeth as long as the campan- 
ulate tube: pods 2-3 lines long, chartaceous, sessile, compressed, pubes- 
cent, ovate-oblong, straight, erect, 1-celled, 6-ovuled, 1-2-seeded.- On 
high mountains, Montana, Wyoming, Idaho and Nevada. 
A. miser Dougl. Hook Fl. i, 153. Cinereous-pubescent: stems diffuse, 
8-10 inches long, slender, loosely leaved: stipules rather large, the upper 
ones connate to the middle; leaflets broadly-linear to oblong, mostly ob- 
tuse: peduncles much exceeding the leaves, loosely 5-7-flowered: young 
pods ovate-oblong, canescent. In the Spokane country, Washington. 
A. serotinus Gray Pac. R. Rep. xii, 51. Cinereous with a minute 
strigulose pubescence: stems branching from the perennial root, aseend- 
ing, slender, often flexuous, 8-15 inches high: stipules triangular, acumi- 
nate; leaflets 9-21, linear to oblanceolate, mucronate, not rigid, glabrous 
or nearly so above: peduncles exveeding the leaves; racemes virgate; 
calyx campanulate, minutely pubescent, its teeth very short: pods sessile, 
linear, acute, glabrous or minutely pubescent, 8-10-seeded. Northeastern 
Washington. 
