Galegiforme*. 248 



both sutures from tip to tip but valves not falling:, chartaceous, a 

 little inflated, abruptly triangular-acute at tip and tip declined and 

 about in line with the dorsal suture as in A. Drummondii, arcu- 

 ate or when straight the ventral suture the more convex and sharp 

 along the edge as in A. racemosus, broadly linear, deeply sulcate dor- 

 sally normally reddish, with surface uneven and veiny, with dorsal 

 suture intruded nearly to the ventral as a hyaline double partition 

 and which opens along the lower side when mature but not along the 

 inner edge, cross-section about cordate-ovate with sides never con- 

 cave. Floral rachis rarely 5 cm. long. Flowers many, long-clawed, 

 about 2 cm. long. Banner nearly erect in a sharp curve beginning 

 beyond calyx tips, the erect part' fully 1 cm. long, oblong-oblanceo- 

 late, 2-8 mm. longer than wings, rather fleshy below; groove V- 

 ahaped at keel tip, shallowing to nothing above; sides reflexed 2-4 

 mm. wide in the middle and waterlined. Wings oblong-elliptical to 

 lanceolate, either straight or arched 45% 4-7 mm. longer than keel, 

 4 mm. wide, concave to keel, widest part at keel tip. Keel 

 straight, the blade 4 mm. long and 2-4 mm. high, the tip abruptly 

 arched to erect and blunt, claw exserted. Calyx tube nigrescent, 

 cylindric-campanulate, about 7 mm. long and 3 mm. high, nar- 

 rowed at tip, 2-4 mm. wide, not cleft deeper above noticeably, gib- 

 bous at base and often saccate on the upper comer, upper side 

 arched, the lower straight, green and thickened on the lower cor- 

 ner, horizontal in flower, teeth unequal, barely half as long as tube. 

 Bracts dark, with hyaline edges, longer than the pedicels. Peduncles 

 5-15 cm. long. Floral rachis about 5 cm. long, not elongating 

 much with age. Leaves 5-7 cm. long, all practically sessile. Leaflets 

 thin, elliptical, truncate to rounded, 1-1.5 cm. long, green or glau- 

 cous, apiculate, 5-13 pairs. Stipules conspicuously united opposite 

 the petiole below, large. Stems rather densely tufted, decumbent, 1-2 

 ft. long, branched below. Root deep, branched, erect. Pubescence 

 almost none. In moist canons in western and southern Colorado 

 and adjoining New Mexico and up as high as 9,000 ft. alt. Com- 

 mon in oak brush in the La Sals, Utah, at 7,000 to 8,000 ft. alt. It 

 has spread to Thistle, Utah, along the railroad. Middle Temperate 

 life zone. 



210. Astragalus Drummondii Hooker Fl. Bor. Am. 1 153 t. 57 

 (1834). Tium Rydberg. Pods linear, curved ventrally or dor- 

 sally, about 3 cm. long, about 3 mm. wide and high, torulose, coria- 

 ceous, finely cross-nerved, with cross section rcniform, very hairy 

 within, walls soft and about 1.5 mm. thick when fresh, the tip very 

 oblique and declined, the sutures very thick and rigid and without 

 the thin sharp edge as in scopulorum and racemosus, and deep red- 

 dish brown, forming very strong ribs, the pod opening only a little 

 at the tip along the dorsal suture, dorsal suture produced a very little 

 as a thin partition except at tip but nearly touching the ventral 

 because of pod being so sulcate. Stipe about twice the calyx. 

 Fruiting spikes often a foot long with closely reflexed calyx. Flow- 

 ers bright-white, variably yellowish when dry, many and dense. Ban- 

 ner ascending in a long arc remote from calyx as in scopulorum and 

 about 1.5 cm. long and 7 mm. wide at base; groove V-shaped, about 

 1 mm. wide and high and continuing to tip. Wings obliquely lance- 

 oblong and acute, 2 mm. wide, concave to keel and spreading 30° at 

 tip, 3 mm. longer than keel, cream-colored, the very tips incurved. 

 Keel 5 mm. long, bent abruptly to erect, with a small projection 

 below the tip or the purple tip abruptly turned out as a deltoid 

 beak. Calyx cream-colored, minutely appressed-pubescent, barely 

 to somewhat gibbous at base and widest there, about 3 mm. high 

 below and 2 mm. wide, 2 mm. high at tip, appearing as if urn- 

 shaped. Teeth triangular-subulate and about half as long as the 

 tube, the lower the longer. Pedicels 4 mm. long in fruit. Leaves 

 7-10 cm. long, the upper sessile the lower short-petioled. Leaflets 

 1.5-2.5 cm. long, narrowly to broadly elliptical, obtuse to notched, 



