RypBerG: Rocky Mountain FLORA 43 
Be 
2-5 cm. long, strigose ; leaflets about nine, linear-oblanceolate, 
2-3 cm. long, usually conduplicate, silky-strigose on both sides ; 
racemes dense, 5-10 cm. long; bracts narrowly lanceolate, not 
exceeding the buds, deciduous ; calyx gibbous at the base, short- 
silky with spreading hairs ; lower lip lanceolate, 6—7 mm. long, the 
upper hardly 4 mm. long, ovate; corolla 8-9 mm. long, dark- 
blue, the banner with a lighter spot, somewhat shorter than the 
wings ; legume densely silky, villous, about 2 cm. long, 6 mm. 
broad, 3-—4-seeded. 
The type was labeled Z. argenteus argophyllus. Its relation- 
ship is closer however to the true Z. argenteus, differing in the 
smaller, darker flowers, the spreading pubescence on the calyx 
and pedicels and above all in the shorter upper lip of the calyx. 
It grows at an altitude of 1000~2 500 m. 
_ SASKATCHEWAN : Cypress Hills, 1894, John Macoun go70 (type 
in herb. Columbia Univ.). 
Montana: Spanish Peaks, 1896, Flodman 629 (in part). 
Wyominc : Big Horn Mountains, 1899, Tweedy 2363 ; Leckie, 
1901, Merrill & Wilcox 759. 
Lupinus subulatus 
__ Perennial with a short caudex; stem 4-5 dm. high, densely 
silky-strigose, Striate, leafy ; stipules subulate ; petioles silky- 
Strigose, 3-6 cm. long; leaflets 7-10, narrowly oblanceolate or 
linear-oblanceolate, densely appressed, silky on both sides, 2-4 
cm. long, cuspidate or mucronate ; raceme dense, 1-1.5 dm. long ; 
bracts Subulate-setaceous, much exceeding the buds; calyx ap- 
pressed silky-canescent, scarcely gibbous; lower lip 8 mm. long, 
narrowly lanceolate, the upper ovate-lanceolate, 6 mm. long ; 
Corolla dark-blue with keel and a spot on the banner light-colored, 
about I cin, long ; petals subequal, banner rather densely pubes- 
cent without. 
This is related to Z. holosericeus, L. canescens, and L. oreophilus, 
but easily distinguished by the long subulate-setaceous bracts. 
Monrana : Columbia Falls, June 3, 1897, R. S. Williams (type). 
Wasuincton : Spokane, 1898, Piper 2823; also 1892, Hen- 
derson. 
Lupinus flavicaulis 
Perennial with a short caudex; stems several, with erect 
_ Pranches, densely pubescent with short yellowish spreading hairs, 
almost velutinous, 3-5 cm. high; stipules subulate ; petioles 2-4 — 
