216 Charles V. Piper. 
85. Lupinus piperi subsp. imberbis Robinson, apud Piper, l. c., p. 358. 
Keel not ciliated; leaflets larger, 3,6 cm long; pedicels 6 mm in 
length; pubescence of the stems and petioles widely spreading. 
Specimens examined: Wenache, K. Whited, no. 121, June, 1896, 
type. 
86. Lupinus (§ Sericei) subsericeus Robinson, apud Piper, l. c., p. 354. 
Root stout, bearing a well-developed leafy crown; stems 15 to, 25 cm 
high, decumbent or curved-ascending, 2 or 3-leaved; petioles of the 
radical leaves slender, 7 to 10 cm long; leaflets oblanceolate, obtusish, 
finely sericeous, but green on both surfaces, 16 to 24 mm long, 3 to 
6 mm broad; peduncles short, 2 to 5 cm in length; bracts lanceolate, 
rather promptly deciduous; racemes at length 10 to 13 cm long, be- 
coming rather loose; bractlets unusually large, oblong, 4 mm in length; 
flowers 12 to 14 mm long, on slender pedicels 4 to 6 mm in length; 
upper calyx lobe cleft four-fifths of the way to the base, the lower 
distinctly and sharply 3-toothed; corolla indigo-blue with a spot of ligther 
color on the glabrous obovate standard; keel ciliated; ovules about 5; 
pod densely sericeous. 
Specimens examined: Ellensburg, Whited 602, >, May 5, 1898; Eger 
Mountain, Whited 1220. 
87. Lupinus leucophyllus plumosus (Dougl) Robinson, apud Piper, Le 
p. 354. 
Lupinus plumosus Dougl, Bot. Reg. XV, pl 1217; Hook. Fl. Bor. 
Am., I, 165. 
' Bracts very long and narrow, plumose-ciliate, much exceeding the 
buds. Sometimes well marked, but in other cases vague and confluent 
with the typical form. 
Type loeality: ,Common in northern California in 45? north, growing 
in gravelly soil; it is also found at the sources of the Wallawallah River, 
near the Blue Mountains.*. Collected by Douglas. 
Specimens referable to this are included in the preceding. 
88. Lupinus canescens amblyophyllus Robinson, apud Piper, l. c., p. 354. 
Leaflets elliptic-lanceolate, broader than in the typical form, rounded 
and mucronulate at the apex; seeds red. 
Specimens examined: Near Egbert Springs, Douglas County, Washing- 
ton, Sandberg & Leiberg 402 (type), July 5, 1893. 
89. Lupinus ($ Sericei) suksdorfii Robinson, apud Piper, l. c., p. 355. 
Erect or nearly so, about 60 cm high; stem stoutish, subsimple, 
terete, finely subappressed-pubescent or somewhat spreading-villous, leafy, 
especially near the middle; leaflets about 9, oblanceolate, acute, the 
larger 5 to 6 cm long, 8 to 12 mm wide, covered on both surfaces by 
a short dense sericeous appressed pubescence; petioles 4 to 11 cm long; 
peduncles terminal and commonly solitary, 4 to 8 cm long; racemes 
20 cm in length, 4 to 5 cm in diameter; pedicels slender, 8 mm long, 
scattered or subverticillate, tomentulose; upper calyx lobe 2-toothed, the 
lower entire; petals rich purplish blue, about 12 mm long; standard 
