Alpini. á 135 
Mts. Oregon and northward and eastward to Colorado, but not found 
in Utah so far. A. Macounii is a form intermediate between this ` 
and. A. Labradoricus and is the more common northern form. It 
occurs in the mountains of Alberta and along the border in British 
Columbia and as far westward as Upper Marias Pass in Montana and 
Oroville in the Cascades, Washington, but is mostly replaced in the 
northwest by A. Bourgovii with connate stipules, In rocky meadows. 
87. Astragalus aboriginum Rich. in Frankl. Jour. App. 18 (1823). - 
Phaca Hooker, Homalobus and Atelophragma Rydberg. Pods half- 
oval, about 2 em. long exclusive of the stipe, and about 5 mm. high, 
triangular acute at tip and apiculate, and also acuminate into the 
tapering stipe which is longer than the calyx, about smooth and 
brownish when ripe, opening all along the ventral suture. Cross 
section rather ovate. Flowers 7-12 mm. long, stubby, capitate, some- 
times white. Banner abruptly arched to nearly erect at end of calyx, 
fleshy, about 2 mm. longer than keel, oval, 3-4 mm. long, with sides 
reflexed about 1 mm. wide. Wings arched to nearly erect, rather cu- 
neate and lobed at tip and about 2 mm. wide, about 1 mm. longer 
than keel and 1 mm. shorter than banner. Keel with base generally 
arched a little and tip triangular or deltoid and at least abruptly 
erect, about 3 mm. high. Calyx tube hardly 2 mm. long, obliquely 
campanulate, rather narrowed below and inserted near the lower 
corner, the base straight and upper side arched, cleft deeper above, 
the teeth nearly as long as tube and nigrescent with black wool. 
Pedicels about 2 mm. long and shorter than the hyaline bracts which 
nearly equal the calyx tube. Peduncles sulcate, in fruit about twice 
as long as leaves and the fruiting rachis as long or longer than the 
peduncles. Leaves mostly sessile, wide, 4-10 cm. long. Leaflets 5-6 
pairs, linear in the type, about 2 cm. long, 2-4 mm. wide, rather distant 
in the type and ascending, acutish, often subalternate, variously hoary 
to almost smooth, with straight and appressed hairs, pubescence decid- 
uous, Stipules about 5-7 mm. long, conspicuous. Stems slender 
and nearly erect in the type, a foot or two long, from a thick and yel- 
low root. Much used by the Indians for food. Frequent in open and 
rocky woods from Lake Winnepeg to British Columbia in the rocky 
Mountains to the Yukon. Middle and Upper Temperate life zones. 
Astragalus aboriginum var. glabriusculus (Hook.) Rydberg Cont. 
Nat. Herb. 3 492 (1896). . Phaca glabriuscula Hooker Fl. Bor. Am. 1 144 
(1830.) Astragalus glabriusculus (Hook.) Gray and var. major Gray. 
A. Forwoodii Watson. This is the common form with narrowly ellipti- 
cal leaflets nearly or quite smooth. From Veta Pass Colorado to the 
East Humboldt Mts. Nevada and northward. Rare in the Great Basin. 
Mt. Belknap Utah. A. Forwoodii is an intermediate form. 
Astragalus aboriginum var. fastigiorum n. var. This is a densely 
congested form with many nearly prostrate stems with few nodes 
and sharp leaflets densely congested making the leaf about as broad 
as long, and with inflorescence often longer than the stems, and pub- 
escence variably woolly to straight. Alpine or subalpine, most common 
on high ridges from Montana to the Wallowa Mts. Oregon. The 
type is my material from Mr. Haggin Montana, and to it I refer 
Cusick’s from the Wallowas. 
88. Astragalus Cottoni n. sp. A. Olympicus Cotton Torr. Bull. 29 
578 (1902). Pods with body 2.5 cm. long and about 1.2 cm. wide, nearly 
half-oval but with the dorsal suture a little arched, otherwise it would 
be half-oval, rounded at tip and with a minute recurved apiculation 
in line with dorsal suture, triangular at base and acutish where it ends 
in the filiform stipe which is twice the calyx and about 6 mm. long, 
minutely pubescent and papery, nearly the shape of A. leucopsis but. 
with sutures reversed, the ventral suture being greatly arched, pods 
ascending from a pendent calyx. Dorsal suture intruded as a thin and — 
