be Leguminaceae 229 
CC. Average leaflet less than 12 mm. long. 
K. _Infloresence-bracts exceeding the calyx; plant herbaceous at base; standard 
elliptic. (See F.) 
KK. Infloresence-bracts shorter than the calyx; plant shrubby at base. 
L. Leaflets 5—6, acutish; peduncles exceeding the leaves; standard elliptic. C. 
L. lyallii Gray 
LL. Leaflets 7—10, obtusish; peduncles shorter than the leaves; standard orbic- 
ular Ux C; L. breweri Gray 
GROUP 4 


A. Plants shrubby at base. 
B. Leaflets lanceolate. W. L. holosericeus Nutt. 
BB. Leaflets oblanceolate. E. 
L. subulatus Rydb. 
AA. Plants not shrubby at base. 
C. Calyx spurred at base. E. (L. laxiflorus montanus. ) 
L. laxiflorus Doug]. 
CC. Calyx symmetric or very nearly so at base. 
D. Flowers yellow. 
E. Leaflets 8—11, widest above their middle; petals bright-yellow; keel ciliate. 
E.. L. sabinij Dougl. 
EE. Leaflets | 3—15, widest below their middle; petals light-yellow; keel glab- 
rous. EF. L. sulyhureus Doug}. 
DD. Flowers not yellow. 
F. None of the petioles more than twice as long as the leaflets. 
G. Keel of the corolla ciliate. 
H. Standard glabrous. E: 
L. suksdorfii Rob. 
HH. Standard somewhat pubescent on the back. 
I. Pedicels of the flowers less than 4 mm. long. E. (L. leucophyllus 
plumosus.) L. leucophyllus Dousl. 
II. Pedicels of the flowers more than 4 mm. long. 
J. Flowers conspicuously 2-colored. E. (L. ornatus bractosus.) 
L. ornatus Doug]. ; 
JJ. Flowers not 2-colored or inconspicuously so. C. E.  (L. alpi- 
cola.) _L. flexuosus Lindl. 
GG. Kee! of the corolla naked. W. E. 
L. albicaulis Dougl. (White-stemmed Lupine) 
FF. Lower petioles more than twice as long as the leaflets. 
K. On sand dunes along the seashore; stems prostrate or decumbent. W. 
L. littoraligs Dougl. (Chinook Licorice) 
KK. Not a seashore plant; stems erect or nearly so. 
L. Upper petal (standard) naked. 
M. Pod 15 mm. long; pedicels |—2 mm. long. W. E. 
L. lepidus Dousl. 
MM. Pod 20—25 mm. long; pedicels 2—4 mm. long. E. (ZL. piperi 
imberbis.)  L, piperi Rob. 
LL. Upper petal (standard) hairy outside. . 
N. Leaflets lanceolate. E. (LL. canescens amblyphyllus. ) 
L. canescens How. 
NN. Leaflets oblanceolate. 

