90 BOTANY. 



persistent: flowers small, purple, nearly sessile: standard narrow; keel 

 ciliate : pod very short, 3-4-seeded. — From Wyoming to Colorado and 

 Utah ; on Blue River, Colorado, Wolf (200). 



Lupinus pusillus, Pursh. — From the Upper Missouri to the Columbia 

 and southward through the interior; Denver, Wolf (198). 



Lupinus Kingii, Watson (Proc. Am. Acad, viii, 534). (L. Sileri, 

 Watson, same, x, 345.) — Resembling the last, but more slender and villous 

 with soft white hairs : racemes very short, few-flowered, on long slender 

 peduncles : pods and seeds smaller. — Utah and Colorado ; at Loma, on the 

 Rio Grande, Wolf (195). 



Medicago sativa, Linn. — Santa ¥6, N. Mex., naturalized in the 

 Plaza, Rothrock (65). Known as "Alfalfa". 



Melilotus parviflora, Desf. "Sweet Clover." — Camp Lowell, Ariz., 

 Rothrock (710, 716). 



Melilotus alba, Lam. — Collected in Utah, 1871. 



Trifolium megacephalum, Nutt. (Gen. ii, 105). — Perennial, very 

 stout, rather low, somewhat villous : leaflets 5 to 7, obtuse, nearly an inch 

 long ; stipules ovate-oblong : flowers rose-colored, sessile in very large 

 naked terminal heads : calyx-teeth filiform, plumose : ovary smooth, 6- 

 ovuled. — From Washington Territory to Northeastern California and Ne- 

 vada; Diamond Range, Northern Nevada, 1871. 



Trifolium longipes, Nutt. (Torr. & Cray, Fl. i, 314). — Frequent from 

 the Rocky Mountains to the Pacific; Mogollon Mesa, Loew (179). 



Trifolium nanum, Torrey (Ann. N. Y. Lye. i, 35, t. 3). — In the Rocky 

 Mountains and Wahsatch; South Park, at 13,000 feet altitude, Wolf 

 (175, 874). 



Trifolium Parryi, Gray (Am. Journ. Sci. 2d ser. xxxiii, 409). — In 

 the Rocky Mountains and Wahsatch ; at Twin Lakes, in South Park, Wolf 

 (177, 184). 



Trifolium dasyphyllum, Torr. & Gray (Fl. i, 315). — In the Rocky 

 Mountains and Wahsatch ; on Gray's Peak and in South Park, Wolf 

 (182, 183). 



Trifolium involucratum, Willd. — Annual, glabrous, the ascending 

 stems often a span high or more : leaflets usually oblanceolate, acute, a 



