Vou Utah Plants. 239 
suture impressed sufficiently to make the pod narrowly sulcate, 
many-seeded, hardly an inch long and 6 lines wide; stipe 6 io 10 
lines long. This is an anomaly in the genus so far as American 
plants are concerned, but I cannot convince myself that it is a new 
genus or anything but an Astragalus. The Jeaves and general ap- 
pearance of the plant resemble the glaucous round leaved species of 
Asclepias; the flowers resemble those of Hosackia Torreyi collect- 
ively, and individually those of A. Drummondi. I propose a new 
section, Pachyphylla, for this plant, characterized by thick unifoliate 
leaves and one-celled, stipitate pods. 
This grows on sand-bars along the Price River, in Eastern Utah, 
elevation 5,000 feet. It was first collected by me in flower and fruit 
in September, 1888, and also at Green River, Utah, along the river, 
in flower, on June 21, 1889. 
ASTRAGALUS SABULOSUS. Many stemmed from a thick woody 
root, less than a foot high. stout, ashy pubescent throughout; young 
leaves silvery, older, ones glabrate; stems and peduncles nearly 
smooth, sulcate; stipules large, broadly triangular, lower barely 
free; lower leaves very small, 114 to 2%4 inches long, the peiiole an 
inch long, sulcate, the leaflets 2 to 3 lines long, obovate or rounded, 
obtuse, 3 to 4 pairs; upper leaves 3 to 4 inches Jong, leaflets obovate- 
cuneate to almost diamond shaped; the broader ones obtuse and 
apiculate and the others acute, not exceeding an iach long by 5 lines 
wide; peduncles 3 to 4 inches long, loosely 4 to 8 flowered; bracts a 
line or two long, equaling the black-villous stout pedicels, calyx 
nigrescent with black hairs, hyaline, cylindric-campanulate, 6 lines 
by 3 lines, teeth subulate and 4% the length of the calyx; corolla 
ochroleucous, twice as Jong as the calyx, keel and wings equal, the 
banner % longer, keel darker tipped, flowers reflexsed; pod barely 
stipitate, nearly 2 inches long by 6 lines wide, straight one-celled, 
very abruptly acute, contracted at base, thick, coriaceous, minutely 
pubescent and hoary when young, neither suture impressed nor 
conspicuously thickened. Allied to A. Pattersont and A. procerus; 
differing from the former in the blunt, large, almost sessile, pubes- 
cent pods, short calyx-teeth, few and broad leaflets, large stipules, 
and low habit; and from the latter in its low habit, large stipules, 
few leaflets, few flowers, shorter and narrower calyx-teeth, and 
larger pod. 
