5-10 cm. lon 
RYDBERG: Rocky MounTAIN FLORA 45 
stipules setaceous ; petioles 1-3 cm. long, slender, usually red- 
tinged ; leaflets about 7, narrowly linear-oblanceolate, acute, I-2 
cm. long, sparingly silky, short-strigose ; raceme 2-4 cm. long ; 
bracts subulate, shorter than the buds ; calyx gibbous, silky with 
short spreading hairs ; lips broadly lanceolate, subequal, 5-6 mm. 
long ; corolla nearly white, tinged with rose, about 8 mm. long ; 
pod densely silky, perhaps 1.5 cm. long when fully developed. 
This resembles L. argenteus in the form and color of the flow- 
ers. It has also the peculiar hue and pubescence of that species, 
but it is a much smaller plant and of a different habit. The latter 
will place it near Z. Zyalii. It is an alpine plant growing at an 
altitude of 3000 m. 
Wyominc: Continental Divide, Buffalo Fork, August 1897, F. 
Tweedy 270. 
Lupinus scaposus 
Annual, with sessile clasping cotyledons ; stem branched at the 
base, 1-1.5 cm. high, sparingly ciliate ; stipules lanceolate, acumi- 
Nate ; petioles 3-5 cm. long, ciliate, slender; leaflets about 7, 
Spatulate, t cm. long, sparingly silky-hirsute on both sides or 
glabrous above ; peduncles longer than the leaves, ciliate ; raceme 
Short, 1-4 cm. long; bracts lanceolate, short; calyx ciliate, the 
lower lip broadly lanceolate, entire, 5 mm. long, the upper 2-cleft, 
ovate ; corolla purplish, 6 mm. long, paler at the base; banner 
Shorter than the wings ; legume ciliate, 1 cm. long, 6 mm. wide, 
2-seeded 
In habit mostly resembling L. brevicaulis but more evidently 
caulescent, with longer peduncles. The most distinctive char- 
acters, however, are the different calyx and its entire lower lip. 
This associates it with ZL. pusil/us, from which it differs in the long 
peduncles and smaller flowers. 
Cotorapo: Glenwood Springs, 1899, Geo. E. Osterhout. 
Lupinus rubens 
Annual, with sessile, clasping cotyledons ; stem ciliate, tinged 
» branched near the base, about 1 dm. high; petioles 
l y Ciliate, 2—4 cm. long ; leaflets 6-7, spatulate, I-1.5 cm. 
ng, ciliate on both sides or glabrous above, acute ; raceme lax, 
g, overtopping the leaves ; bracts minute, subulate ; 
Calyx ciliate, the lower lip lanceolate, 5 mm. long, the upper barely 
: mm. long ; corolla 7 mm. long ; banner dark-purple with a yellow 
Pt; wings and keel lighter, tinged with lilac. 
