Vol.1] Rail. — Botanical Survey of San Jacinto Mountain. 91 



Lupinus albifrons Benth. Lupine. 



Frequent beneath pines and on open slopes on all sides of the 

 mountain, sometimes reaching an altitude of 8000 ft. (No. 2213. ) 



Lupinus concinnus Aqardh. 



Occasional in diy woods of the lower part of the pine belt. 

 Not seen on the north side. (Nos. 1128, 2067.) 



Lupinus cytisoides Agardh. L. rivularis Dougl., of Bot. Calif. 



Throughout the Transition Zone; rare in the lower half, 



forminglarge patches in the bogs of the upper half. (No. 2554.) 



Lupinus formosus Greene, Fl. Fr. 42 (1891). 



Very common in diy, open forests from the lower edge of the 

 pine belt to 9400 ft. alt. At the higher altitudes the pubescence 

 is more appressed, the leaflets narrower and more elongated, the 

 peduncles shorter and the looser racemes composed of larger 

 flowers in indistinct verticels. (Nos. 672, 2167, 2214, 2498, 

 2551.) 



Lupinus micranthus Dougl. 



Abundant beneath pines on the Johnston Ranch below 4500 

 ft. alt. (No. 2026.) 



Trifolium microcephalum Pursh. 



Occasional in meadows below the 9000-foot contour. (No. 

 650.) 



Trifolium monanthum Gray. 



Common along streams and around the borders of nearly all 

 the meadows from 5000 to 10,000 ft. alt. (Nos. 710, 1812, 2200, 

 2463, 2552.) 



On San Jacinto Mt. this species varies somewhat from the 

 form usually collected in the Sierras. The plants are always 

 perennial and glabrous throughout, but the leaflets vary from 

 obovate and obtuse to narrowly lanceolate and acute, a wide 

 degree of variation often occurring in leaflets of a single plant. 

 The flower is very typical except for the large size of the corolla 

 which has a length of 6-8 lines; the banner is broad and obtuse, 

 much exceeding the keel and slightly longer than the narrow 

 wings. The corolla often fades to a uniform brown color, but in 

 fresh specimens it is clear white with the black tip of the short 



