245 Bisulcati. 
cels villous. Bracts narrowly lanceolate, acuminate, longer than 
the pedicels. Calyx lobes equal the tube. Leaflets 7-9 pairs, nar- 
rowly elliptical to linear-lanceolate, very obtuse, apiculate. Sink 
Valley, Utah. A. scobinatulus Sheldon was partly founded on this 
and on A. racemosus and bisulcatus. 
206. Astragalus bisulcatus (Hook) Gray Pac. R. R. Rep. 12 
42 t I B (1860). Phaca bisulcata Hooker Fl. Bor. Am. 1 145 
(1834), Diholeus Rydberg, Astragalus bisulcatus var. decalvans Gan- 
doger. Pods linear to narrowly elliptical, triangular-acute at tip 
and base, 1-2 cm. long, rather shining, with cross-nerves almost none, 
often involute ventrally with sides touching the ventral suture and 
so the pod seems cylindrical, chartaceous, usually glabrous. Flow- 
ers variable but mostly purple, rarely white, about 1 cm. long, not 
very narrow, nodding, in dense short (2.5-5 cm. long) spikes. Ban- 
ner arched to 45-90°, 2 mm. longer than keel. Wings 1 mm. longer 
than keel. Keel nearly straight. Calyx 3-5 mm. long, campanulate- 
cylindric. Teeth variable, often setaceous, 2-3 mm. long, about as 
long as tube. Bracts 4 mm. long, ovate-acuminate, hyaline, seta- 
ceous often. Pedicels 2-4 mm. long. Spikes closely flowered and 
7.5-15 em. long in fruit, shorter than the peduncles, and these longer 
than the leaves. Leaves thickish, nearly sessile. Leaflets 8-13 pairs, 
elliptical to narrowly lanceolate, somewhat petiolulate, clothed be- 
neath with minute hairs. Stipules ovate lanceolate, hyaline, acute, 
upper ones large and conspicuous, connate only below. Stems erect, 
4-7 mm. thick, rather stout. Plants minutely pubescent even to the 
pods. Common on the alkaline plains from northern New Mexico 
to the Saskatchewan, not on the Pacific slope except at the north 
and then occurring only on the heads of the rivers. Middle Tem- 
perate life zone. The var. decalvans Gandoger is only a white flow- 
ered form. 
207. Astragalus oocalycis Jones Cont. 8 10 (1898). A. urceo- 
latus Greene. Pods like those of A. Haydenianus but very shortly 
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