62 CLOVER CULTURE. 



leaflets are an inch long or less, somewhat wedge-shaped or 

 obovate and blunt at the apex, and with very fine, sharp teeth 

 on the edge. The stipules at the base of the leaves are large, 

 mostly ovate in form, and sharply toothed or deeply cut. The 

 heads are mostly terminal, about one and one-half inches 

 long, on a naked peduncle, and without an involucre. The 

 flowers are large, purplish, about an inch long, and very com- 

 pact and spicate in the head. The calyx with its long, 

 plumose teeth, is half as long as the corolla. This species 

 l^rows in the mountain region of California, Oregon, Wash- 

 ington Territory, Nevada, and Montana. It is not as large 

 as the common red clover, but experiments are needed to 

 determine its possibilities for pasturage. Its large, showy 

 heads and its peculiar leaves would make it an interesting 

 ornamental species. 



TRIFOUUM INVOLUCRATUM. 



This is an annual species, presenting a great variety of 

 form, but under favorable circumstances reaching one and 

 one-half or two feet in height and of vigorous growth. The 

 stems are usually decumbent and branching below, very 

 leafy, and terminating with one to three heads on rather long 

 peduncles. The leaves are on stalks longer than the leaflets, 

 -which are in threes, one-half to one inch long, of an oblong or 

 obovate form, smooth, and with very fine, sharp teeth on the 

 margins. The stipules are large, ovate, or lanceolate, and 

 usually much gashed or deeply toothed. The heads are long- 

 stalked, about an inch long, the purplish flowers closely 

 crowded, and surrounded with an involucre, which is divided 

 into numerous long-toothed lobes. The flowers are half to 

 three-fourths of an inch long, slender, with a short, striate 

 oalyx, the teeth of which are very slender, entire, and pointed, 

 and little shorter than the corolla. This species has a wide 

 range of growth in the western part of the continent, pre- 

 vailing from Mexico to British America through the moun- 

 tain districts. Under cultivation it would probably produce 

 a good yield of fodder, but has never been subjected to experi- 

 ment so far as known. * 



TRIFOUUM STOLONIFERUM (Running buffalo clover). 



This is a perennial species, growing about a foot high; 

 long runners are sent out from the base, whicK are procum- 

 bent at first, becoming erect. The leaves are all at the base, 

 except one pair at the upper part of the stem. The root 

 leaves are long-stalked, and have three thinnish obovate 

 leaflets, which are minutely toothed. The pair of leaves on 



