Alpinı, 133 
convex, pendent; dorsal suture intruded as a thin and narrow hya- 
line band; not explanate along the ventral suture throughout, scarce- 
ly at all splitting along the dorsal. Flowers in the type deep-purple, 
with light claws, 7-9 mm. long, narrow, in dense racemes 2-5 cm. 
long. Banner oval, about 4-5 mm. long, with sides a little reflexed 
throughout, arched abruptly at end of tube to 45 degrees, 1-2 mm. 
longer than wings, with white spot very strongly purple-veined. 
Wings lanceolate, hardly 1 mm. wide, arched to 45 degrees, about 1 
mm. longer than keel. Keel with straight base, about 3 mm. long, 
31-5 mm. high, and abruptly rounded to about 110 degrees and with 
the deltoid tip about 2 mm, high. Caylx tube about 3 mm. long 
and 1.5 mm. high, narrowed below and acutish at the base and in- 
serted near the lower corner, very oblique at tip and much deeper 
cleft above, nigrescent, the lax and subulate teeth unequal and nearly 
as long as tube. Bracts subulate to triangular, 4-5 mm. long, longer 
than the flowering pedicels. Arctic plants have the papery bracts 
subulate, southern plants have triangular bracts hairy and stiffer. 
Stipules green, nearly’ deltoid, about 5 mm. long, the lower very 
broad and rounded, often overlapping their edges but almost never 
truly connate. Proper peduncles about 1 dm. long and longer than the 
leaves . Leaves all shortly petioled in the type, nearly 1 dm. long, 
rarely 3.5 cm. wide. Leaflets narrowly elliptical to broadly linear, 
1.5-3.5 cm. long, ashy, mostly notched, rather distant. Stems 1-2 ft. 
high, nearly erect, the internodes about as long as the leaves, from 
rather much branched woody roots. From the plains of Alberta to 
Ladrabor and northward in the mountains to Alaska and the Arctic, 
in moist woods and meadows. Middle and Upper Temperate life 
zone blooming in July and August. This differs from A. oroboides 
of Europe in the narrow not oblong-ovate leaflets. 
Astragalus elegans var. curtiflorus Rydberg Fl. Mont. 242 (1900). 
Pods and flowers in long racemes on elongated peduncles. Flowers 
hardly 8 mm. long, often lighter colored. Bracts about 2 mm. long. 
Upper leaves sessile. Stems and peduncles sulcate. This is the 
common form from Leadville Colorado to the British line in the 
mountains, not in the Great Basin but on the Pacific slope in Deer 
- Lodge valley Montana, Upper Temperate life zone, also along cold 
streams in the Middle Temperate, in moist places in meadows and 
open woods. 
86. Astragalus Labradoricus DC. Prod. 2 287 (1825). A. secun- 
dus Mx., A. Blakei Eggleston, A. Robbinsii var Jesupi Sheldon, A. ma- 
counii Rydberg. Pods 1-2 em. long, 4-5 mm. wide or high, only slightly 
sulcate, shortly acuminate at both ends, in the young state quite nar- 
row and inclined to be obcompressed but with age often laterally flat- 
tened, somewhat inflated, with dorsal suture a little produced. Stipe 
about as long as caylx. Flowers spicate, about 1 cm. long 10-15, about 
half of them maturing and the fruit racemose. Banner oval, about 7 mm. 
long, 2 mm. longer than wings, arched gently to 45 degrees about 2 mm. 
beyond calyx tips, with sides reflexed 2 mm. wide and most above 
and with claws included. Wings 2 mm. longer than, keel, nearly 
linear, about 1 mm. wide, a little arched, much narrower than keel 
and exposing its base. Keel small, straight, about 3 mm. long, with 
tip rounded, obtuse, and as wide as high. Calyx about 3 mm. long, 
a little narrowed below, slightly oblique at tip. Teeth triangular, 
about 1 mm. long. Pedicels slender, horizontal in flower, longer than 
the bracts, 2 mm. long in flower and 4 mm. long in fruit. Bracts 
conspicuous, hyaline, lanceolate. Peduncles 1.5-3 dm. long, in the up- 
rer axils, racemes 4-12 cm. long. Leaves 4-7 cm. long, widely spread- 
ing, the upper sessile. Leaflets elliptical to oval, 1-3 cm. long, obtuse 
to notched, somewhat pubescent, about 5-6 pairs, not contiguous, 
shortly cuneate at base, fully 7 mm. wide, thin. Stipules triangular- 
lanceolate, 4-7 mm. long, mostly rather small for the plant but varia- |. 
