228 | Leguminaceae 
Q. Leaflets 8—16, 5—15 cm. long; racemes 3—6 dm. long; bracts 
equaling or shorter than the calyx; upper calyx-lip 2-toothed. W. 
L. polyphyllus Lindl. (Giant Lupine) 
QQ. Leaflets 8—12,.. 2.5——7.5 7m. long; racemes) 1242.5 0dan long; 
bracts exceeding the calyx; upper calyx-lip entire. E. 
L. wyethii Wats. 
PP. Keel of the corolla ciliate for at least a part of its length. 
R. Leaflets loose-hairy on both sides, obtuse to rounded at apex. (See 
Be 
RR. Leaflets glabrous on the upper side, acute or the lower ones obtuse. 
S. Stem simple. U. E. (L. ligulatus; L. ligulatus barbatus.) 
L. burkei Wats. 
SS. Stem branched. 
T.. Plant somewhat pubescent with closely appressed hairs; petioles 
1.2—12.5 cm. long; leaflets widest above the middle, not mucronu- 
late W.E. L. rivularis Dougl. 
TY. Plant glabrous or somewhat loose-hairy ; petioles 30-—45 cm. 
long; leaflets widest below their middle, mucronulate. 
L. longipes Gr. 
GROUP 3 
A. Standard hairy. 
B. Lower petioles more than twice as longas the leaflets. E. 
L. erectus Hend. 
BB. None of the petioles more than twice as long as the leaflets. C. E. (L. al- 
; picola. ) L. flexuosus Lind. 
AA. Standard glabrous. 
C. Average leaflet over 25 mm. long. 
D. Leaflets 4—4.5 cm. long. E. 
L. hellerae Hel. 
DD. Leaflets not over 3.6 cm. long. 
FE. Pedicels 1—2 mm. long; pod 15 mm. long. W. E. 
L, lepidus Doug]. 
EF. Pedicels 2.5—4 mm. long; pod 20-25 mm. long. E. (L. piperi im- 
berbis. ) L. piperi Rob. 
CC. Average leaflet between 12 and 25 mm. long. 
F. Lower calyx-lip minutely 2-toothed. E. 
L. brachypodus Pip. 
FF. Lower calyx-lip 3-toothed. 
G. Stem 15—25 cm. high; 2—3-leaved: leaflets obtuse. E. 
L. subsericeus Rob. 
GG. Stem leafless or only |-leaved; leaflets acute (obtusish in L. breweri). 
H. Plants 20—40 cm. high; keel 9—11 mm. long. (See E.) 
HH. Plants 5—20 cm. high; keel 6—8 mm. long. 
I. Inflorescence-bracts exceeding the calyx. E. 
L, caespitosus Nutt. 
II. Inflorescence-bracts not exceeding the calyx. 
J. Densely hairy with somewhat shaggy hairs; standard obovate-oblong. 
W.E. L, aridus L. 
JJ. Densely hairy with appressed straight hairs: standard nearly orbicu- 
lar. E. (L. lobbu; L. cusickii.) 
L. minimus Dougl. 


