44 RypBerG: Rocky MOUNTAIN FLORA 
cm. long, velutinous ; leaflets 7-10, narrowly oblanceolate, usu- 
ally conduplicate, densely silky on both sides, acute, 2-4 cm. 
long; racemes dense, 5—-IO cm. long ; bracts subulate, shorter 
than the buds; calyx gibbous, villous ; lower lip lanceolate, 7 
mm. long; upper lip ovate, 5-6 mm. long ; corolla about 10 mm. 
long, light-purple or pink ; banner with a darker spot, pubescent 
without; legume 2-2.5 cm. long, 7 mm. wide, densely silky- 
villous, 3-4-seeded. 
In general habit, size, form, and color of the corolla and leaf- 
lets, this resembles L. decumbens very closely, but differs in the 
dense, short, spreading pubescence of the stem and the denser, 
longer, looser pubescence of the leaves. These characters place 
it in the same group as ZL. Bakeri and L. dichrous, which it other- 
wise little resembles. It grows on dry plains and hills. 
Wyominc : Snake River, 1894, Aven Nelson 1098 (type in herb. 
Columbia Univ.); Evanston, 1882, V. L. Britton. 
Uran: Divide, 1898, /sabel Mulford 268. 
Lupinus macrostachys 
Perennial with a short caudex; stem 5—10 dm. high, puberu- 
lent and with long silky spreading or reflexed hairs ; stipules 
setaceous ; petioles short-pubescent with spreading hairs, 2-10 
cm. long; leaflets 7-8, linear-oblanceolate, acuminate, 3-6 cm. 
long, appressed-silky on both sides, grayish-green ; raceme dense, 
2-3 dm. long; bracts lanceolate, acuminate. merely equaling the 
buds; calyx velutinous, gibbous; lower lip broadly lanceolate, 
obtuse, about 8 mm. long; upper lip ovate, almost as long; 
corolla 10-12 mm. long, dirty-white, tinged with blue; banner 
with a darker spot; legumes fully 2 cm. long, densely silky- 
villous, 4—5-seeded. 
This species is related to L. leucophyllus, from which it differs _ 
in the less dense and strictly appressed silky pubescence (scarcely 
_ canescent) and the color of the flowers. In L. deucophyllus they 
are rather light-blue or pink with darker striations (rarely white), 
the banner with a lighter spot. It grows at an altitude of about 
1000 m. : 
Montana: Jocko Creek, 1901, D. 7. MacDougal 253 (type 
in herb. N. Y. Bot. Gard.). | 
Lupinus roseolus 
Perennial with a cespitose caudex; stems ascending of de- 
cumbent, about 1 dm. high, sparingly strigose, 3-5-leaved, slendef; 
