354 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



10. Lupinus subsericeus Robinson, sp. nov. (§ Sericei). 



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, becoming rather loose; bractlets 

 unusually large, oblong, 4 mm. in length; flowers 12 to 14 ram. 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 lighter color on the 

 glabrous obovate standard; keel ciliated; ovules about 5; pod densely sericeous. 



Specimens examined: Ellensburg, Whited 602, May 5, 1898; Badger Mountain, Whited 

 1220. 



11. Lupinus albicaulis Dough; Hook. Fl. Bor. Am. 1: 165.1830. 

 Type locality: "About Fort Vancouver on the Columbia." 

 Range: Washington and Oregon in the coast region. 



Specimens examined: Whidby Island, Gardner 427; near Olympia, Heller 4039; McAl- 

 listers Lake, Henderson, June, 1892; Fourth Plain, Piper, July 14, 1899; Union City, Piper, 

 July 20, 1890. 



Specimens collecetd by Suksdorf in Falcon Valley, nos. 345, 346, are closely allied to 

 L. albicaidis, but probably represent a new species. 



Zonal distribution: Humid Transition. 



12. Lupinus leucophyllus Dough; Lindl. Bot. Reg. 13: pi. 112^. 1827. 



Type locality: "From the Great Falls of the Columbia in North America to the 

 sources of the Missouri among the Rocky Mountains." 



Range: Washington to Nevada and New Mexico. 



Specimens examined: Ellensburg, Whited 551; upper Wenas 'R\\eT, Henderson 2336; 

 Rock Lake, Lale & Hull 432; Spokane, Piper 1901, 2270; Dewart in 1900; Henderson 

 2335: Pullman, Piper, July, 1893; July 28, 1894, and 1902; Hull 755; Waitsburg, Horner 

 86; Blue Mountains, Piper, July 15, 1896; Conconully Creek, Griffiths cfc Cotton 286; 

 Colville Reservation, Griffiths & Cotton 398. 



Zonal distribution: Arid Transition. 



12a. Lupinus leucophyllus plumosus (Dough) Robinson. 



Lupinus plumosus Dough Bot. Reg. 15: pi. 1217 ; Hook. Fl. Bor. Am. 1 : 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 locality: "Conuuon 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. 



13. Lupinus canescens Howell, Erythea 1: 110. 1893. 



Type locality: "At the western base of Buck's Mountain, a spur of the Blue Mountains 

 of Oregon." 



Range: Washington and Oregon. 



Specimens examined: Klickitat Valley, J. Howell, June, 1879. 



13a. Lupinus canescens amblyophyllus Robiason, subsp. nov. 



Leaflets elliptic-lanceolate, broader than in the typical form, rounded and mucronulate 

 at the apex; seeds red. 



Specimens examined: Near Egbert Springs, Douglas County, Washington, Sarulberg <& 

 Leiberg 402 (type), July 5, 1893. 



