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 pusitius, Pursh.—From the Upper Missouri to the Columbia 
and southward through the interior; Denver, Wolf (198). 
Lupinus Kixeu, 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). 
Mepicaco sativa, Linn—Santa Fé, N. Mex., naturalized in the 
Plaza, Rothrock (65). Known as “Alfalfa”. 
MELILOTUS PARVIFLORA, Desf. ‘Sweet Clover.”—Camp Lowell, Ariz., 
Rothrock (710, 716). 
Me.iLotus auBa, Lam.—Collected in Utah, 1871. 
TRiroLiuM 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. 
TriroLium Lonerpes, Nutt. (Torr. & Gray, FI. i, 314).—Frequent from 
the Rocky Mountains to the Pacific; Mogollon Mesa, Loew (179). 
Trirouium nanum, Torrey (Ann. N. Y. Lyc. i, 35, t. 3).—In the Rocky 
Mountains and Wahsatch; South Park, at 13,000 feet altitude, Wolf 
(175, 874). 
Trrrotium 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 (FI. 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 
