148 LEG U MINOS,*:. ASTRAGALUS. 



hairs: stems short, depressed: stipules oblong, acuminate, appressed, 

 membranaceous : leaflets 13-15, linear-oblong: peduncles as long as the 

 leaves or shorter, 3-4-flowered ; bracts linear, as long as the cylindrical 

 elongated blackish-hairy calyx; teeth of the calyx one-third as long as the 

 tube: pods oblong-ovate, attenuate above, incurved, silky-pubescent. 

 Southern Idaho and Wyoming. 



SERIES II. PHACA L. Gen. n. 891, as genus. Pod 1 -celled, 

 neither suture being inflexed, nor the ventral more intruded than 

 the dorsal. 



9. ERTOCARPI Gray Proc. Am. Acad. vi, 212. Pod very 

 woolly, short turgid, coriaceous, more or less incurved, acumi- 

 nate or pointed, sessile. Stems prostrate, from a stout perennial 

 root. 



A. inflexus Dougl. in G. Don. Gen. Syst. ii, 256. Soft-woolly 

 throughout: stems 1-2 feet long, prostrate, branching: stipules subulate or 

 acuminate from a rather broad base, 6-8 lines long : leaflets 21-25, oblong 

 or oblanceolate, about 6 lines long, densely silky peduncles not exceeding 

 the leaves ; flowers purple, rather numerous, in short capitate spikes : 

 bracts setaceous, 6-8 lines long; calyx about equalling the lateral petals, 

 its subulate teeth about as long as the tube ; upper petal longer than the 

 lateral ones, pubescent on the back: pods ovate, acuminate, densely silky- 

 villous, at length strongly incurved, 1-celled but at maturity the dorsal 

 suture becomes inflexed so as to nearly meet the ventral, but not forming 

 a partition. On sandy banks and plains, along the Columbia river above 

 The Dalles. 



A. dorycnioides Dougl. in G. Don, Gen.fiyst. ii, 258 (?). Appressed- 

 silky with white hairs, stems short, depressed, several from the crown of a 

 stout perennial root 1-3 inches long : stipules subulate, setaceous-acumi- 

 nate, 6-9 lines long : leaves numerous ; leaflets usually 13, 6-10 lines long 

 by 2 lines broad, oblong to oblanceolate, acute or acuminate, densely silky 

 both sides; peduncles shorter than the leaves; capitately few -flowered; 

 calyx tubular, 4-5 lines long, its subulate teeth about half as long as the 

 tube; corolla 8-10 lines long, persistent, bright purple : pods ovate, acumi- 

 nate, at length strongly incurved, densely villous, 10-12 lines long, 1-celled, 

 the dorsal suture at maturity strongly intruded, the ventral rounded. On 

 rocky hillsides, eastern Oregon and Washington. 



A. leucocystis Greene Eryth. iii, 76. (A* lanocarpus Sheld. 1. c. 144). 

 Woolly-pubescent with long white hairs : stems cespitose, very short, from 

 a thick perennial root, branching and forming a close mat 4-8 inches in 

 diameter : leaves numerous, 3-6 inches long, the rachis channelled ; leaf- 

 lets 7-11, usually absent from the lower half of the rachis, narrowly obo- 

 vate to oblong, acute or obtuse, 3-6 lines long, stipules triangular -ovate, 

 acuminate, sheathing peduncles equalling the leaves, 3-5-flowered ; calyx 

 narrowly cylindrical, with unequal teeth, one-fifth as long as the tube ; 

 corolla ochroleucous tipped with purple, 10-12 lines long: pods 8-10 lines 

 long, coriaceous, white-pubescent with long stiff hairs, sessile, oblong, 

 slightly arcuate, 1-celled, but with the ventral suture somewhat intruded, 

 lined within with cobwebby hairs which traverse the cavity, few to many- 

 seeded. On dry hillsides and plains, eastern Oregon and Washington. 



A. Purshii Dougl. Hook. Fl. i, 152. Very hirsute, stems short, diffuse: 

 leaflets 13-17, oblong ; stipules lanceolate, acuminate: peduncles half as 

 long as the leaves ; flowers in loose heads, spreading ; bracts linear-lanceo- 

 late, twice as long as the pedicels ; calyx elongated, membranaceous, its 

 subulate teeth half as long as the tube, equal ; corolla yellow, 18 lines 

 long, upper petal obovate, equalling the narrow lateral ones, keel purple- 

 tipped; ovary subsessile, linear, very hirsute. Brit. Columbia to Califor- 

 nia and Utah. 



