ASTRAGALUS. LEGUMINOS^. 149 



A. Utaheiisis T. & G. Pac. R. Rep. ii, 120. Canescent with a long and 

 dense soft-woolly appressed pubescence : subcaulescent, the short stems 2-6 

 inches long, prostrate: leaflets 11-17, suborbicular, 2-4 lines in diameter: 

 flowers violet; pods oblong, obcompressed, densely \vopllyi moderately in- 

 curved, slightly sulcate. Union Co. Oregon to Salt Lake Utah. 



A. allanaris Sheld. 1. c. 141. Pubescent throughout with white loose 

 hairs : cespitose, nearly acaulesceut or with very short erect, simple hidden 

 stems, from the crown of a stout perennial root : leaves 2-5 inches long, 

 erect, pubescent with sparse spreading hairs, the rachis slightly channelled, 

 but nearly terete ; stipules ovate-lanceolate, long-acuminate, usually closely 

 imbricated ; leaflets 7-11, 4-6 lines long, elliptical to lanceolate, acute, 

 pubescent both sides ; peduncles 1-2 inches long, 2-flowered ; flowers nar- 

 row, each subtended by a black-bordered bract ; calyx tubular-cylindrical, 

 oblique at base, spreading-pubescent, striate, the lanceolate teeth nigre- 

 scent-margined, much shorter than the tube : corolla purplish, tinged with 

 green: pods 6-7 lines long, ovate-arcuate, acute or shortly acuminate 

 pointed, incurved, coriaceous, sessile, white-pubescent, 1-celled the dorsal 

 suture slightly impressed, few-seeded, Eastern Washington. 



§ 10. Inflati Gray 1. c. 213. Pod membranaceous, inflated, 

 globose, egg-sbaped or semi-ovate, usually large, finely reticulated, 

 glabrous or glabrate, neither suture inflexed or rarely the ventral 

 only and slightly. 



* Perennial ; pod not mottled. Caulescent, rather tall, leafy : ra- 

 cemes or spikes usually many-flowered. 



A. Snksdorlti Howell Eryth. i, 111. Cinereously pubescent through- 

 'out: stems many from a stout perennial root, slender, ascending, 8-12 

 inches long : stipules foliaceous, ovate-lanceolate, acute, about a line long : 

 leaflets 9-11 cuneate-oblong, obtuse or retuse, 3-4 lines long: peduncles 

 veiy slender, shorter than the leaves; flowers in compact clusters white 

 or yellowish, on slender pedicels ; bracts lanceolate, about half as long as 

 the pedicels ; calyx campanulate, its subulate teeth about equalling the 

 tube ; upper petal far exceeding the lateral ones and twice the length of 

 the keel, entire : pods of firm texture, sessile, obliquely ovate, acuminate, 

 8 lines long or less, finely appressed-pubescent. In loose volcanic soil near 

 the base of Mount Adams, Washington. (Suksdorf). 



A. dinriins Watson Proc. Am. Acad, xxi, 450, Minutely appressed- 

 pubescent throughout ; stems numerous from a thick perennial root spar- 

 ingly branched below or simple, 4-10 inches high, slender, ascending or 

 erect: leaves about 2 inches long; leaflets 7-11, obovatei obtuse or retuse. 

 glabrous above, pubescent beneath, 1-3 lines long : peduncles shorter than 

 the leaves, slender, few-flowered; bracts about equalling the pedicels, 

 subulate : flowers spreading or reflexed, pale yellow or lined with purple, 

 3 lines long ; calyx turbinate-campanulate, the slender teeth as long as the 

 tube : pods inflated, membranaceous, sessile, obliquely oblong-ovate to ob- 

 long, the ventral edge nearly straight, or somewhat incurved, somewhat 

 compressed, finely-pubescent, 6-10 lines long. On gravelly bars of the 

 John Day river at Dayville, eastern Oregon. 



* * Root perennial ; pod mottled, short-stipitate, the stipe equal- 

 ling the calyx : flowers few, rather small, light-colored, keel with the 

 inflexed apex somewhat produced. 



A. Hookerianus Gray 1. c. 215. Canescently pubescent: stems 

 much branched from the base, ascending, 5-6 inches high, from a per- 

 ennial root : stipules lanceolate, membranaceous ; leaflets 15-19, oblong or 

 linear-oblong, slightly petiolulate, rather rigid : peduncles scarcely as long 

 as the leaves ; bracts setaceous, about as long as the very short pedicels ; 

 ■calyx pubescent with whitish and black hairs intermixed, its subulate 



