69 
3A3B2C. Leaflets digitate and mostly a single pair, oblanceolate 
and apiculate, never minute. Stems czespitose often a mere 
crown, always with overlapping stipules whch are very shaggy 
with long hairs. Flowers purple. Plants blooming early. 
21 sericoleucus. 
3A4B, Stems czspitose, very many, prostrate, very slender with 
internodes much. longer than the large and not connate ‘stipules. 
Flowers white, small in axillary heads. Pods oval-ovate, about 
4 mm. long. Leaflets very small and nearly round. . ` 
i , 22 tegetarioides. i 
3A5B. Slender plants, apparently winter annuals, with ascending 
to prostrate stems a few inches long from the crown of a slender 
"root. Flowers. racemose, few. Pods chartaceous, a little 
inflated. about 7 mm. long, with ventral suture conspicuously 
arched and dorsal straight. Leaflets linear. Peduncles elon- 
`“ gated . It is possible that this belongs in the Inflati, but at 
" present I, place it here. |  . hab ss 
viua quinqueflorus. 
1. Astragalus : Wingatensis Watson Proc, Am. Acad. 18 192(1883) 
.Homalobus Rydberg. Pods straight, but oblique, narrowly oblong, flat 
in the type, about 15 mm. long and 3 mm. high, smooth and inclined 
to be mottled, the dorsal suture only a little convex and the declined 
tip nearly in line with it, seeds 3 or more maturing. Flowers 10-20 
in a long and very open raceme, erect or spreading, 5-7 mm. long. 
Banner abruptly. arched at calyx tips to 45 to 100 degrees, 
3-4 mm. long and 3 mm. wide, about 2-4 mm. longer than keel, 
broadly ovate to oval deeply notched, purple-veined. Wings oblong, 
3-4 mm. long, entire, about about 2 mm. longer than keel and ap- 
pearing as if as long as banner by its being arched back, ascending 
or much arched, flat to keel. Keel very blunt, the tip much incurved 
and rounded, purple-tipped, surpassing. the calyx. teeth by about 2 
mm. the tip oval, about 2 mm, wide, base straight. Calyx nigres- 
. eent, tube about 2 mm: long and the teeth about 1 mm. long and 
. broadly triangular to filiform and about equal. Pedicels 1-3 mm. 
long, slender. Bracts small but evident, persistent, hyaline. Pedun- 
cles grooved, subterminal, 7-14 cm. long or more including the rachis 
which is about 2-2 times the whole, longer than the leaves, filiform and 
tapering, erect. Leaves never sessile, 2.5-7 cm. long. Leaflets 3-6 
pairs, distant, on small plants 4-10 mm. long, on larger ones 2-3 
cm. long, elliptical to linear, distant, truncate to notched, mostly 
folded and rather thick. Stipules with the free tips triangular in 
the upper axils. Stems widely spreading and not densely branched, 
often 2 ft. long, from a thick woody root, several, sparsely leafy. 
Whole plant except the pods minutely pubescent, the hairs very wide, 
warty, flat, sparse. From Mounds Utah to Glenwood Springs Colo- 
rado and southward in the Navajo Basin to Fort Wingate New Mex- 
ico. It blooms in May, and grows on open and dry rocky slopes 
and ledges among the junipers. Lower Temperate life zone. ^ ^ 
Astragalus Wingatensis var. Dodgeanus (Jones Zoe 3 289 (1893) ; 
as species). A. acerbus Sheldon and A. proximus Rydberg, Homalo-, 
bus Clementis Rydberg. This is a stipitate-podded, form, often 
nearly round in cross section, and with flowers about 5 mm. long. 
and. white. The leaflets mostly linear to rudimentary, and stems 
very slender. From Thompson’s Springs Utah to Glenwood- Springs. 
and Salida Colorado. Same life zone. Á en RET = 
"2 Astragalus tenellus Pursh Fl. 47 .. A. multiflorus — 
(Pursh) Gray. Ervum multiflorum Pursh, Tragacantha Kuntze. 
Orobus dispar Nutt. Phaca nigrescens Hook., A. 
