70 
Gray, Homalobus Britton. Pods 1-2 cm. long, 3-4 mm. high, normally 
very flat but often nearly round in cross-section in the middle, ab- 
ruptly contracted at both ends, stipitate and with stipe often twice 
the tube, mostly speckled, smooth and shining, from nearly oval to 
narrowly oblong, with sutures equally arched or the dorsal concave 
‘and with pod seemingly recurved a little but with tip in line with the 
dorsal suture, Seeds rarely more than one maturing. Flowers nor- 
mally white, rarely purplish, 5-8 mm. long, ascending. Banner oval 
to oblong-ovate, abruptly arched at end of calyx tube to 45 
to 90 degrees, with sides reflexed 1 mm. wide below but not at all 
at tip which is barely notched; groove very shallow at base and 
forming a half circle but reduced above to a broad arc about 2 mm. 
wide and then narrowed to tip, pink-purple-veined, inclined to be 
faintly colored from 3 mm. below tip; white spot obovate and sparse- 
ly veined, with blade swelled a little near base. Wings obliquely 
lanceolate-oblong and about half of an ellipse, entire, from flat to 
concave to keel to within 1 mm. of tip and then concave beyond, 
the left hand one flaring and the other straight, 1-2 mm. longer than 
Keel, I mm. wide, white. Keel rounded to over 90 degrees and pur- 
ple tipped, the tip inclined to be truncate, about straight, surpassing 
calyx by 2 mm. Calyx Hedeoma-like and a little obcompressed at 
tip, 1 mm, wide, nearly 2 mm. long, lower teeth longer, setaceous, 
with rounded sinuses fully and not longer than the tube. Pedicels 
about 1-2 mm. long, slender Bracts normally double the pedicels 
but sometimes short. Proper peduncles very short, inclined to be in 
pairs in all but the lowest axils, one almost none and the other 
1-2 cm, long, the floral rachis short to 1 dm. long and scatteringly 
flowered Leaves 3-8 cm. long, nearly always closely sessile except 
below. Leaflets 6-19 pairs, flat, rarely 2.5 cm. long, thin, 3-5 mm. 
wide, narrowly elliptical, some nearly linear, mostly nearly con- 
tıguous. Stems a foot or two long, densely tufted and densely branch. 
ed, not filiform, weakly ascending, with internodes rarely 7 cm. long 
and densely leafy. Smooth plants inclined to dry black. Rather 
common in shady places and woods from the Saskatchewan and the 
Mackenzie rivers to Minnesota and Nebraska and southward to 
New Mexico, westward throughout Colorado and Utah to Central 
Nevada East Humboldt Mts. Nevada and northward. Also on river 
bottoms in Nebraska. Middle Temperate life zone. Some forms ap- 
proach A. Bourgovii. 
3. Astragalus Coltoni Jones Cont. 2 237 (1891). Pods in the 
type linear to narrowly oblanceolate, triangular at tip, 3-4 mm. high 
and 3-4 em. long. Stipe 2-3 times the calyx, Flowers about 1-1.5 
cm. long, ascending. Banner about a half longer than keel, about 
8 mm. long, oval, arched abruptly beyond calyx to 45 degrees, with 
sides reflexed somewhat. Wings about 1 mm, wide, nearly straight, 
about 2 mm longer than keel and much narrower, light-colored, Keel 
. about 5 mm. long, straight or nearly so, the tip abruptly erect or a 
little more and acute or turned out a trifle and triangular, purple, 
about 3 mm. high. Calyx tube about 5 mm. long and 3 mm, high, 
a little oblique at tip, a trifle narrower below and truncate and 
` attached on lower corner to a black-hairy and stout reflexed pedicel 
"about 1 mm. long which is about equaled by the minute bract, ni- 
 &rescent. Teeth in the type minute, triangular. Peduncles very stout 
for the plant and strict and deeply sulcate, about as thick as the 
stems, often a foot long. Leaves about 1 dm. long, with tapering 
and rigid and green rachis. Leaflets very distant about 3 (3-5) pairs, 
linear, obtuse, 1-2 em. long, sometimes absent altogether, the ter- 
‘minal one simply the enlarged tip of rachis and not jointed to it, 
T ashy when young. Lower stipules connate and scarious, the up- 
per. triangular, small, green, variously connate or free. Proper 
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