132 Alpin.. 



2A2B. Flowers in spikes, white or cream-colored, about 1.5 cm. 

 long, closely reflexed. Keel large and not purple-tipped, very 

 obtuse and rounded. Wings short. Pods with dorsal suture thick- 

 ened within but not raised as a thin edge. Stipules very 

 large and leaf-like, fully 1 cm. long, reflexed, thin, obtuse, or the 

 uppermost only acutish, oval to oblong. Peduncles subterminal, 

 shorter than the leaves. Calyx white, very oblique at both 

 ends, cut off at the lower corner and set obliquely to the long 

 and filiform pedicel and inclined to be saccate on the upper 

 corner, cleft much deeper above, with rudimentary and broadly 

 deltoid teeth. Leaves all petioled. Leaflets very large, ellipti- 

 cal, contiguous, short-petiolulate, broadly cuneate below, obtuse, 

 2-4 cm. long. 



Pods black-hairy. 89 alpinus. 



Pods green and smooth. 90 Americanus. 



2A3B. Pods distinctly obcompressed, the cross section triquetrous- 

 reniform, somewhat inflated, nigrescent, conspicuously sulcate 

 dorsally, with ventral suture straight or a little concave but 

 with a convex hump near the tip and tip declined, on a stipe 

 as long as calyx. Flowers in short racemes or clusters. Stip- 

 ules large and leaf-like. Leaflets 10-12 pairs. Plants from 

 filiform underground rootstocks. 



91 andinus. 



84. Astragalus Gorman! Wight, n. sp. Pods erect and appressed, 

 oblong-lanceolate, straight, about 1.5 cm. long and 4-5 mm. wide and 

 high, cross section apparently nearly round, partly 2-celled by the 

 intrusion of the dorsal suture which is nearly straight, with the ven- 

 tral arched, pod splitting the calyx, shortly acuminate, rounded at 

 the sessile base, smooth. Flowers white, narrow, nearly 1.5 cm. long, 

 reflexed. Banner elliptical, about 1 cm. long, abruptly arched to 45 

 degrees at calyx tips, with sides reflexed about 1 mm. wide through- 

 out, 3-4 mm. longer than wine:s. Wings lance-linear, 1 mm. wide, 

 arched about 30 degrees, 2 mm. longer than keel. Keel with straight 

 base and exserted claw, about 4 mm long, 2 mm. wide, the tip abruptly 

 rounded to about 110 degrees and deltoid, about 3 mm. high purple. 

 Calyx about 4 mm. long and 3 mm. wide, ribbed, rounded at the fleshy 

 base and nearly equally inserted, cleft much deeper above, hyaline 

 and nigrescent with minute appressed hairs; teeth triangular, spread- 

 ing and about 1 mm. long. Pedicels 2-3 mm. long. Bracts very nar- 

 row, hyaline and lax, about 7 mm. long. Peduncles stout, 23 dm. 

 long. Leaves widely spreading, about 7 cm. long, and 4 cm. wide. 

 Leaflets smooth, rather glaucous, obtuse, rather distant. Stipules 

 subulate-lanceolate, papery and hyaline, adnate and not connate, about 

 7 mm. long, spreading, the lower much broader and rather longer. 

 Stems about 2 ft. high, with the lower internodes longer, than the 

 leaves, ascending, decumbent at base. Whole plant smooth except 

 the calyx. Root woody and rather stout. This has the habit of A. 

 aboriginum. It grows In moist ground on creek banks near Fort 

 Selkirk Alaska, Upper Temperate life zone, blooming in July. 

 Gorman. The Indian name is Ayan-Gih-thah. 



85. Astragalus elegans (Hook.) Sheldon Minn. Bot. Stud. 9 154 (1894) 

 Phaca elegans Hook. Fl. Bor. Am. 1 144 (1830). A. oroboides var. 

 Americanus Gray, A. Shearis Rydberg, Atelophragma Shearis Ryd- 

 berg. Pods half-oval, hardly 1 cm. long, 5-7 mm. high and about 3-5 

 mm. wide, a little laterally flattened, with cross section broadly 

 ovate and rarely a little cordate when pod Is slightly sulcate dor- 

 sally, dark, but white-hairy, obliquely deltoid at each end and with 

 stout declined mucro at tip and a minute stipe at base, the ventral 

 suture convex to about one third circle, the dorsal straight or a trifle 



