2l6 LEGUMINOSAE. 



long, about half as long as the petioles; principal racemes elongated and long 

 pedunclcd; bracts subulate, longer than the calyx; upper calyx-lip entire or 

 2-toothcd; corolla purplish-blue; keel ciliate; pods sparsely pubescent. 



Common in open woods. This species has been much confused with the 

 very different L. rivularis Dougl. of California. 



Lupinus volcanicus Greene. Perennial, with villous pubescence; stems 

 simple, leafy, 10-20 cm. high, erect; leaflets 7-9, oblanceolate, acute or obtuse, 

 2-2.5 cm. long, about one half as long as the petioles; stipules subulate; racemes 

 short; corolla blue, 8-10 mm. long; keel ciliate. 



In volcanic sand on Mount Rainier at 2600 m. altitude, 



Lupinus nootkatensis Donn. Perennial; pubescence villous with long 

 spreading hairs, but herbage green; stems stout, leafy, 50-60 cm. high; leaflets 

 6-8, obovate-oblong, obtuse or glabrous above, shorter than the petioles; 

 stipules lanceolate, large; flowers long-pedicelled, in loose racemes; calyx large, 

 the upper lip 2-toothed, the lower 3-cleft; corolla blue-purple, 1.5 cm. long; 

 keel not ciliate; pods 4 cm. long, appressed pubescent. 



Near the sea coast, Alaska to Vancouver Island, British Columbia (Victoria, 

 Macotin), and to be expected in Washington. 



Lupinus subalpinus Piper & Robinson. Erect or somewhat decumbent, 

 sparsely villous; stems simple, 25-40 cm. high, leafy; leaflets spatulate-ob- 

 lanceolate, rounded or obtuse at the apex, villous beneath, sparsely so or rarely 

 quite glabrous above, 3-4.2 cm. long; raceme terminal, 10-15 cm. long, many- 

 flowered, borne on a stoutish peduncle 3-5 cm. in length; pedicels slender, 

 4-8 mm. long, spreading-pubescent; flowers large and showy; petals 12-16 

 mm. long; standard glabrous; keel entirely glabrous or with traces of ciliation; 

 pods linear-oblong, about 3.5 cm. long, obliquely sharp-pointed, 7-9-seeded. 



In mountain meadows, at about 1700 m. altitude. 



Lupinus lyallii Gray. Perennial from a stout woody caudex; herbage 

 densely silvery silky; stems short, the leaves mostly basal; leaflets 5-6, ob- 

 lanceolate to obovate, acute, 6-10 mm. long; petioles 2-4 times as long as the 

 leaflets; flowering stems erect or ascending, 10-20 cm. high, exceeding the 

 leaves; racemes short and dense; calyx bilabiate, the upper lip 2-cleft, the 

 lower 3-cleft; corolla deep blue, 10 mm. long; keel ciliate; standard elliptical; 

 pods silky. 



At high altitudes in the Cascade Mountains, British Columbia to Oregon. 

 First collected by Lyall on the 49th parallel of latitude. 



Lupinus breweri Gray. Perennial from a branched woody base; herbage 

 silvery silky with appressed hairs; leaves mostly basal; leaflets 7-10, narrowTy 

 obovate, obtuse, 8-12 mm. long; peduncles equalling or exceeding the leaves; 

 racemes very short; calyx bilabiate, the upper lip 2-cleft, the lower 3-toothed; 

 corolla blue, 6-8 mm. long; standard orbicular; keel ciliate; pod oblong, silky. 



Mount Hood, Howell, and south through the Cascade and Sierra Nevada 

 Mountains at high altitudes. 



Lupinus lepidus Dougl. Perennial from a stout taproot; pubescence very 

 silvery and silky; leaves chiefly basal; leaflets 7-9, narrowly oblanceolate, 

 acute, 2-4 cm. long, about one-third as long as the petiole; stems erect, 40-60 

 cm. high, the narrow raceme elongated; bracts shorter than the calyx; calyx 

 bilabiate, the upper lip 2-cleft, the lower entire; corolla purplish-blue, 10 mm. 

 long; keel ciliate; pods silky. 



In dry prairies, British Columbia to California. 



Lupinus aridus Dougl. Perennial, with a stout vertical root; pubescence 

 coarse, loose, white or somewhat yellowish; leaves mostly basal; leaflets 5-7, 

 oblanceolate, acute, 1-2 cm. long, about one-third as long as the petioles; 

 flowering stems erect, 20-40 cm. high, the raceme dense, rather conical; bracts 



