A FASCICLE OF NEW PAPILIONACEJE. 135 
lous; corolla less than 3 lines long, the petals equal, the 
short and broad keel delicately ciliolate. 
This is another of the allies of L. decumbens, but most dis- 
tinct by its excessively numerous very small flowers, ap- 
pearing in fine close racemes at the ends of all the branches. 
It may possibly include no small part of the so-called L. 
argenteus of low meadows in Wyoming, Utah and Nevada ; 
but my type specimens are from the meadows about Gun- 
nison, Colorado, and were obtained by myself, 1 Sept., 1896. 
Lupinus ArsoPHiLUs. Tall, branching and small-flow- 
ered as the last, with still greener and seemingly glabrous 
herbage, but leaves fewer, very large and ample; leaflets 
about 8, those of the middle and lower portion often 3 inches 
long and ? inch broad above the middle, oblong-lanceolate, 
obtuse, mucronate, pale and glaucescent beneath, green 
and glabrous above: racemes 2 to 4 inches long, on slender 
peduncles somewhat shorter: flowers violet, scattered, less 
crowded than in the foregoing; calyx with very short tube 
not gibbous ; petals equal, 3 lines long, the keel short, broad 
and blunt, the margin naked: pods densely villous. 
In subalpine thickets near the summits of the mountains 
above Cimarron, Colorado, 30 Aug., 1896, collected by the 
writer. Remarkable as combining the largest of lupine 
leaves with almost the smallest of lupine flowers. 
LUPINUS onEoPHILUs. Perennial, with tufted slender 
erect or decumbent stems 1 to 2 feet high, not branching, 
and with a single short raceme of small flowers; the whole 
plant almost white with a dense silky tomentum: leaflets 
7 to 9, the longest 2 inches long, oblanceolate, obtuse, mu- 
cronate, the petioles longer than the leaflets: flowers violet, 
rather distinctly whorled; pedicels and calyx velvety, the 
latter gibbous or subsaceate at base; petals equal, the ban- 
ner, and sometimes the wing-petals also, densely villous on 
the outside along the midvein, keel short but somewhat 
