Collini, 141 
tip, 2 mm. longer than keel. Keel purple-tipped. Leaflets oblong- De 
vate, rarely oblong-ovate, with cuneate base, about 1.5 em. long, 
notched. Whole plant even to calyx and pods finely and very shortly- 
woolly. Common around Reno Nevada and northward, rare in the 
Columbia Basin along the divide and running over to the Ble Mts. and 
as far as Weiser Idaho, also extending down the Klamath river. 
Nearly everything referred to the species from the Columbia Basin 
is the variety. 
Astragalus Gibbsii var. curvicarpus (Sheldon Minn. Stud. 9 125 
(1894) as A. speirocarpus var.) A. speirocarpus var. falciformis Gray, 
Pods nearly smooth, about 3 mm. high, much laterally flattened, often 
curved to a circle, triangular-acute. Flowers rarely over 10 in a short 
Spike, the banner ovate and as long as calyx, wings elongated, 2 mm. 
wide, arched, flaring at tip, 3-6 mm. longer than keel. Stems slender 
and ascending. Whole plant nearly smooth. This extends from Austin 
Nevada to the Sierras and northward along the rim of the Columbia 
Basin to Baker City Oregon and Nampa Idaho. 
95. Astragalus speirocarpus Gray Proc. Am. Acad. 6 225 (1864.) 
A. Whitedi Piper. Pods triangular-acuminate at both ends, 4-6 mm. 
high, evidently spirally reticulated, puberulent, on a rather stout stipe 
about as long as calyx. Flowers about 1.5 cm. long, with exserted 
claws, rather many. Banner ovate and about 8 mm. long, with sides a 
little reflexed, rather gently arched to 45 degrees beyond ialyx, about 
4 mm. longer than keel. Wings about straight, narrowly oblong, a 
little longer than keel. Keel about 3 mm. long and 2 mm. high, the 
tip abruptly erect and triangular, base straight, the claw very long. 
Calyx 5-8 mm. long, and 3 mm. high, about cylindric, but with the 
usual shape, reflexed; teeth rudimentary, variably nigrescent with very 
short lax hairs. Peduncles rarely 5 cm. long, the rachis about as 
long. Leaves 5-7 cm. long, with 4-8 pairs of oblong-obovate, notched 
leaflets nearly 1 cm. long. Plants ashy throughout. Sand dunes from 
Near Yakima and along the Columbia near Wallulla on dry prairies. 
96. Astragalus Alvordensis Jones Cont. 10 67 (1902). Pods 
shortly-triangular at tip and rather long-acuminate at base, about 3 mm. 
high, faintly reticulated, almost chartaceous, somewhat, mottled, 
hardly 1 mm. wide, often a trifle and very narrowly sulcate dorsally, 
rather shining, on a filifrom stipe about 1 cm. long and 3-5 times as 
long as the calyx. Flowers about 7 mm. long, purple-veined, widely 
spreading, racemose, 3-8 (pods 1-3), on a rachis 3-7 cm. long and with 
peduncle rarely over 1 cm. long. Banner ovate, arched abruptly beyond 
calyx teeth to erect, about 2-3 mm. long, with sides much reflexed. 
Wings lanceolate, narrow, abruptly arched near the end of keel to 45 
degrees, about 1 mm. longer than keel and 2 mm. shorter than banner. 
Keel with straight base, 3 mm. long, tip abruptly erect and obtuse, all 
petals purple-veined. Calyx turbinate-campanulate, about 2 mm. long, 
5-nerved, deeper cleft above and with oblique mouth, narrowed and 
obliquely inserted at base. Teeth minute and deltoid. Pedicels hardly 
half as long as calyx tube. Peduncles filiform and axillary throughout 
Leaves about 2-4 cm. long, the petiole none or about as long as lowest 
leaflet. Leaflets 6-8 pairs, cuneate-obovate, notched 4-7 mm. long, 
rather hoary, less so above. Stems very slender and widely branched, 
1-1.5 ft. long, ascending. Alvord valley eastern Oregon Cusick, June. 
"This unique species seems like A. speirocarpus, a delicate form, but the 
flowers are very different and the stipe greatly elongated and the pod 
much thinner and the walls not old enough to determine if they 
split aways as in the other species. The habit is that of A. flexuosus. m 
Middle TIERE life zone, BEN Emos in sand. 
