468 FABACEAE 



upper 5 mm long; corolla blue or purple, 9-10 mm. long. L. ovinus Greene. 

 Plains and hills : Wash.— Ore.— Ida.— Alta. Jl-Au. 



65. L. erectus Henders. Cespitose perennial; stems 2.5-3.5 dm. high: 

 basal leaves many; leaflets 5-8, linear-oblong to narrowly oblanceolate, acute, 

 1.5-4 cm. long, appressed silky-canescent; cauline leaves 1-2; bracts persistent, 

 lanceolate to subulate equalling the calyx; calyx silky; Ups subequal; banner 

 obovate, silky ,^ reflexed. Dry ground: Ida. , Suhmont.—Mont. Jl. 



66. L. lepidus Dougl. Densely cespitose perennial; stems 1-4 dm. high, 

 leafy mostly at the decumbent base; leaflets 7-9, oblanceolate, 1-3 cm. long 

 siHcy but green, acute; racemes rather lax, 5-20 cm. long; bracts lance-subulate, 

 about equaUmg the buds; calyx silky-canescent; Ups lanceolate, the lower 6 mm. 

 long, the upper slightly shorter; corolla about 1 cm. long, violet, whiter at the 

 base; legume 1.5-2 cm. long, 4-6-seeded. Meadows: B.C.— Calif.— Ida. 

 oubmont. Je-Jl. 



67. L.psoraleoides Pollard. Perennial, with a cespitose caudex, sub- 

 acaidescent; stem 1-15 dm high, densely viUous with long white hairs; leaflets 

 5-7, oblanceolate, acute 2-3 cm. long, long-viUous; raceme dense, almost sessile, 

 scarcely surpassing the leaves; bracts linear, scarious; coroUa about 1 cm. long 

 violet-purple; banner shorter than the keel; legume 1.5 cm. long, few-seeded. 

 Gravelly soil: Colo. Submont. Au. 



tl. r!,?;v^; f. ^^/^'^^^^^ Rydb Low cespitose perennial, densely white-silky 

 ohwiw' ""^^ ascending, 1.5-2 dm. high; leaflets aboAt 7, 1.5-2.5 cm. long, 

 ^^ Inn^ 'i ^'''^}^' "J^cropate, mostly conduphcate; raceme rather dense, 3-8 

 In^a ni;i? ^''^ densely silky-viUous; lower lip about 6 mm., the upper 4 mm. 

 onf • w nl '^t !'^^^' banner with a light brown spot, glabrous, about 7 mm. 



1 ^Hm t;,.?^!i"^^*'^'' ^/^^- Pe^?"nial and densely cespitose; stems about 

 ointP^n Wnf K?*"'' ^'fl or,ascendmg, leafy, appressed-hairy ; leaflets oblance- 



racemP vprv Jh /^ 'I''^^*,''^ ^f'^ '°'- i^^^^' ^^"^^1^ canescent on both sides; 

 Er^m ?nL . i^'P^'^-T^^'^' dense and short; bracts lanceolate, short; flowers 

 ?~i,J^ InnT^fK ^ ''■'*^ spreading hairs; lips ovate-lanceolate, the lower about 



snS p]Xnn= TvT^^'.'^-^^vi''^^'^''.^™"^ purplish blue; banner with a Ught 

 spot, glabrous. Mountains: Ida.— Wyo. Subalp. 



leifl^' Ip^^fl^f ^* Q °^^ ^^''^?- ^l^""^ numerous, 1-2 dm. high, grayish-strigose, 

 ^ravi;h c^IW «7~ ' ^^"^v^^l^^. oblanceolate, 2-4 cm. long, acute or acuminate 

 S^n.n. ni; I'^'f ?" both sides," racemes 3-6 cm., densely flowered; bracts 

 ohftP 7 i^'l ''*";^*«' equalling the calyx; calyx silky-viUous ; lower Up lance- 

 «hnnt Jn^ ] ^' *^f f'PPl' "'^^^^J 2-toothed, 6 mm. long; flowers dark blue, 

 fnnT 4-fi « i^^' ?f*^'' ^^H^q^al; banner with a light browA spot; legume 2 cm. 

 Subalp Jl-An ^^ ^ '"^ *^^ mountains: Mont.-^Wyo Mont.- 



sna.Jwiv* Jr*!^^^"? ^/^^- u ^^r'S^ ascending or decumbent, about 1 dm. high, 

 lonrtlrtX t'-ll^^^i' ^^y*- ^' "^"o^'ly Hnear-oblanceolate, acute, 1-2 cm! 

 'horterXn^L Shj' ^Y^-^^F'^ose ; raceme 2^ cm. long; bracts subulate, 

 subeoual ^^i^^ ?^' '^^^"^ n'*^ "^^^ spreading hairs; hps broadly lanceolate 

 cm.Tni: ^MoCt Jns?=W^^^.%S^^ "'^^^' *'"^^^ ^'^^^^^^^^ podVrhaps 1.5 



olat?* 1^2 P^®T*°^"^ ^^- ''^*• <^f Pitose. almost stemless ; leaflets 5-7, oblance- 

 subsessilP 1^ ."^' i'P*"1^'"'' Pubescent on both sides, with long hairs; raceme 

 bids cS;'x;flkv lnr^',>T*' setaceous, equalUng or slightly exceeding the 

 mm ioni^^oS' JT Ki ^^ anceolate, about 6 mm. long; upper lip ovate, " ' 



about 4 sPPdpJ ^n ^fe ^'^^L^' '^^'^^' '^-^ ^"1- long; legume 1-1.5 cm. 1 

 about 4-seeded. Dry hills: Mont.-Colo.-Utah-Ore. Pfam-ilfoni. 



3-4 



stem-fpiCp^^nna. ?it f^o""" S^ems short, decumbent at the base, with few 



dliSe on hAt^ -^- ->»^^ """■ ^^^' - •*' ^^' "''^'•^^^'ly oblanceolate, loosely 

 ciliate on both sides, with in age brown hairs; raceme 5-12 cm. long; calW long- 



