140 Collini. 
KEY 
A. Pods 1.5-2 cm. long, 2-3 mm high, straight or little arched, later- 
ally flattened, on a stipe about half as long as pod, and which is 
fully as long as calyx.. Peduncles strict, often a foot long.: Stems 
erect. Leaflets nearly linear, about 1.5 cm. long. Flowers about 
8 mm. long, the banner very stubby and arched almost back on 
itself, round, 3-5 mm. long. Calyx about 6 mm. long, the teeth 
about a fourth as long and deltoid. 
Pods erect. ' 92 Tweedyi 
Pods not erect. 93 collinus. 
2A. Pods arched, 2-3 cm. long exclusive of stipe. 
2AB. Rather coarse plants, mostly 2-3 ft. high, from thick and 
woody roots. Peduncles stout and as long as leaves. Flowers 
nearly 2 cm. long, rather coarse. Calyx tube about 8 mm. long 
and 45 mm. high, pendent. Leaflets large. 
Flowers large and stubby.. Pods not spirally coiled. 94 Gibbsii. 
2A2B. Slender plants with flexuous stems rarely a foot high and 
much branched, from slender roots.  Peduncles slender and 
and shorter than the leaves, Flowers not over 1.5 cm. long, 
in short racemes, not coarse. Leaflets small, 5-10 mm. long. 
Pods very flat, almost completely laterally flattened and with 
sharp edges, on filiform stipes, tightly coiled into 1-2 circles, 
the body about 2 cm. long, the walls mostly separating with age, 
and the outer wall contortedly reticulate and the main veins as- 
cending along the sutures and pods spirally coiled, with tip en- 
siform and very sharp. 
Flowers large, 1.5 cm. long,not stubby. Pods spirally coiled. Stipe 
oniy equaling calyx. 95 speirocarpus, 
Flowers 7 mm. long. Stipe 3-5 times as long as the calyx. 96 Alvordensis. 
92. Astragalus Tweedyi Canby Bot. Gaz. 15 150 (1890.) Phaca 
Piper. Pods erect, about 1.5 em. long, rigid and reticulated, almost 
cartilaginous, opening first at tip, about 4 mm. high, cross section 
nearly round. Along the Columbia at the mouth of the Yakima river. 
Lower Temperate life zone, 
93. Astragalus collinus Dougl. in Hook. Fl. Bor. Am. 1 141 (1830). 
Phaca Hooker. A. cyrtoides Gray. Pods pendent, opening first at base, 
about 2 cm. long and 3 mm. high, faintly reticulated, mostly much 
flattened laterally, coriaceous. Grassy and sandy hills and flats. 
Stems about 2 ft. high. Middle Temperate life zone nearly throughout 
the Columbia Basin (except the valley of the Snake) and common 
on the west. The type of A. cyrtoides from the Clearwater is clearly © 
A. collinus. The same sheet has a specimen of A. Gibbsii var. on 
it, and the shape on this gave the name undoubtedly since there are 
only flowers on the Clearwater specimen which forms the type of 
A cyrtoides. Gray evidently thought the two specimens belonged to 
the same species, which was not correct. 
94. Astragalus Gibbsii Kellogg Proc. Cal. Acad. 2 161 f. 50 (1863). 
A. sinuatns Piper. Phaca Piper. Pods variously arched even into 
a circle, inclined to be acuminate at both ends, long-pointed, 4-5 mm. 
wide or high, often decidedly obcompressed in the middle. Rather 
cartilaginous and corrugated and about round in the type, opening 
first at base, the tip mostly erect, on a stipe about half as long as 
body. Flowers many, in a dense spike-like raceme,’ Banner very short, 
_ and stubby, mostly broader than long and greatly reflexed, the erect 
part 3 mm. high or less, about half as long as calyx tube, or nearly 
as long, which is about 8 mm. long and 5-6 mm. high. Wings broadly 
oblong, 3 mm. wide below and 2 mm. at the twisted and horizontal 
t 
