lupinus. LEGUMINCXS^. 127 



bracts somewhat persistent, subulate, about equalling the calyx: flow- 

 ers subverticillate, on stout pedicels a line long or more: upper lip of 

 the calyx bifid, the lower subentire: petals 4 lines long, equal, the 

 upper one rather broad, pubescent outside, keel cilate. By small 

 streams, western base of Buck Mountain, eastern Oregon. 



L. lepidus Dougl. Bot. Reg. xiv, t, 1149. Stems slender, 6—24 inches 

 high, leafy at base, densely appressed silky: stipules setaceous: leaf- 

 lets 7—9, narrowly oblanceolate, 9— IS lines long, acute, petioles much 

 elongated: racemes 2 — 8 inches long, many-flowered: bracts not ex- 

 ceeding the calyx, caducous: flowers in near verticils or scattered: 

 pedicels 1—2 lines long: upper lip of the calyx 2- toothed or deeply 

 cleft, the lower 3-toothed or .subentire: petals violet, equal, 5 lines 

 long, the keel ciliate: ovules 4—6: pods an inch long. In prairies and 

 plains, Puget Sound to the Klamath Lakes. 



■*-•*--«-■*-+--«- Stems leafy : petioles short : racemes short-pedunc- 

 led : bracts deciduous, mostly short: flowers usually, small, not yellow : 

 ovules 3 — 5. 



L. flexuosus Lind. in Agh. Syn. Lup. 34. Stems ascending or decum- 

 bent, 18 inches high, branching pubescence short, silky, appressed, or 

 subvillous on the leaves: stipules linear-setaceous: leaflets 6—8, ob- 

 lanceolate, 12—18 lines long, acute, silky on both sides: racemes 3 — 6 

 inches long or more; bracts lanceolate-setaceous, equalling or much 

 exceeding the calyx; flowers subverticillate, on pedicels 2—3 lines 

 long: lips of the calyx nearly equal, the upper slightly toothed, the 

 lower subentire; bractlets short, setaceous; petals blue or flesh-color, 

 equal, 5 lines long, the upper one very hairy, keel strongly ciliate: 

 ovules 4—5; pods an inch long. Columbia valley to the Rocky Moun- 

 tains. 



Ii. parviflorus Nutt. H. & A. Bot. Beech. 338. Stems strict, usually 

 solitary, slender, erect 2—3 feet high, at length branching: pubescence 

 scanty, short, appressed, the calyx and pedicels silky: stipules setace- 

 ous: leaves rather distant; leaflets 5—11, oblanceolate to obovate, 

 1—2 inches long, acute or obtuse, mucronulate, glabrous above, the 

 lower ones shorter than the petioles: racemes 6—12 inches long, slen- 

 der; bracts linear-subulate, equalling the calyx; flowers subverticillate 

 or scattered, the slender pedicels 1—2 lines long: lips of the calyx 

 nearly equal, the upper bifid: petals light blue, equal, 3—4 lines long, 

 keel ciliate or naked: pods 9—10 lines long, 2—4 seeded, pubescent. 

 In the mountains, from the Columbia river to northern Utah and the 

 Yosemite Valley, California. 



L. laxiflorus Dougl. Bot. Reg. xiv, t. 1140. Stems cespitose, erect or as- 

 cending, 1—2 feet high, slender, at length much branched: pubescence 

 minute, silky, appressed: stipules setaceous, mostly very small: leaf- 

 lets 6—8, narrowly oblanceolate, canaliculate, arcuate, 1—2 inches long, 

 acute, appressed-silky both sides or nearly smooth above, at least half 

 as long as the petioles: racemes rather loose, 3—6 inches long: bracts 

 subulate, deciduous: flowers subverticillate or scattered, oh slender 

 pedicels 2—4 lines long; calyx narrowed and more or less spurred at 

 base, minutely bracteolate, the upper lip broad, shortly 2-toothed lower 

 one a little longer, almost oblong or broadly lanceolate, subentire- pet- 

 als blue to white or yellowish, 3—5 lines long, equal, the upper one sub- 

 pubescent, keel villous ciliate in the middle; ovules 4—5; pods silky- 

 pubescent. Common from Vancouver Island to northern California 

 Utah and Montana. 



Var. montanus Howell Eryth. iii, 33. Leaflets silky both sides 

 rather shorter than the type: calyx dense-silky, prominently spurred' 

 the upper lip more distinctly toothed. On Mount Hood, near the line 

 of perpetual snow. 



