42 Sierra Club Publications. 



Sibbaldia procumbens L. Low and densely matted, not an 

 inch in height, clothed sparingly with long, appressed hairs ; 

 leaflets % in. long ; flowers a little more than ^ in. in diameter. 

 Harrisons Pass. 



LEQUMINOS/E. Pea Family. 



KCV XO the: GCPfERA. 



Leaves palmately -compound with more than 3 leaflets ; flowers 

 in racemes, often whorled. . . . L,upinus, Lupine. 



Leaves trifoliate; flowers in heads. . Trifolium, Clover. 



Leaves pinnately-compound with 2 to many leaflets ; flowers soli- 

 tary or in umbels LotUS. 



Leaves pinnately-compound, ending in tendrils ; stigma forming 

 a hairy ball Vicia, Vetch. 



Leaves pinnately-compound, with or without tendrils ; style 

 hairy down the inner side. . . Lathyrus, Wild Pea. 



Lupinus. Calyx generally 2-lipped. Corolla with broad 

 standard and wings united above enclosing the incurved, pointed 

 keel. Stamens in two sets ; one set in the bud has long anthers, 

 the others have shorter filaments and are tipped with globular 

 anthers. As the flower develops the ball-tipped filaments grow 

 longer and push the pollen up to the top of the keel, from 

 which the pistil projects. The leaflets are usually narrow, 

 and fold at mid-day. The flowers are generally blue, but white 

 and yellow flowered species exist, as well as some dull in color 

 and one combining yellow and rose-color. The species are diffi- 

 cult and are all uncertain. They have been sent to Dr. B. L. 

 Robinson, Gray Herbarium, for determination. 



Trifolium tenerum Eastwood. Perennial, from creeping 

 rootstocks, with stems low, numerous, leafy, forming mats in the 

 meadows, soft, hairy with fine hairs. Leaflets narrowly ellipti- 

 cal to oblanceolate, pointed and tipped with a bristle, serrulate 

 on the margin with bristle-tipped teeth, the conspicuous veins 

 terminating in the bristles ; petioles short ; heads few-flowered, 

 1-6, on thread-like peduncles ; involucres smooth, very small, of 

 2-5 separate, spiny bracts. Calyx open, bell-shaped, veiny, 

 membranous between the veins ; corolla long and slender ; the 

 banner with 3 rounded teeth at the truncate apex, and all parts 

 white except the purple keel. Ovary containing one ovule. 

 Summit and Bearskin Meadows. 



Trifolium multicaule Jones. This is similar to the above, 



