REPORT OF THE BOTANIST. 83 



Trifolium inegacephalurri (Large-headed clover). 

 A low species, seldom reaching a foot in height, but robust and 

 with strong, deeply penetrating roots. A number of stalks usually 

 proceed from one root, but these stems are unbranching, somewhat 

 hairy, and terminate with a single large head. The leaves mostly 

 proceed from the base of the stem, there usually being but one pair 

 on the stalk near the middle. The lowest leaves are long-stalked, 

 and with 5 to 7 leaflets instead of 3, as in most clovers, but the upper 

 ones are sometimes reduced to 3 leaflets. The 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 1^ inches long, 

 on a naked peduncle, and Avithout an involucre. The flowers are 

 large, purplish, about an inch long, and very compact and spicate in 

 the head. The calyx, with its long, plumose teeth, is half as long 

 as the corolla. This species grows in the mountain region of Cali- 

 fornia, Oregon, Washington 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. (Plate II.) 



Trifolium involucratum. 



This is an annual species, presenting a great variety of form, but 

 under favorable circumstances reaching l-i or 2 feet in height and of 

 vigorous growth. The stems are usually decumbent and branching 

 beloAv, very leafy, and terminating with 1 to 3 heads on rather long 

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

 are in threes, one-half inch to an 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 

 deej^ly 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 

 calyx, the teeth of which are very slender, entire, and pointed, and lit- 

 tle shorter than the corolla. This species has a wide range of growth 

 in the western part of the continent, prevailing from Mexico to Brit- 

 ish America through the mountain districts. Under cultivation it 

 would probably produce a good yield of fodder, but has never been 

 subjected to experiment so far as known. (Plate III.) 



Trifolium stoloniferum (Running buffalo clover). 



This is a perennial species, growing about a foot high; long run- 

 ners_ are sent out from the base, which are procumbent at first, be- 

 coming 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 the stem have the stalk about as long as the leaflets, 

 which are about 1 inch long. The stipules are ovate or lanceolate, 

 pointed, and entire on the margins, the lower ones nearly an inch 

 long, the upper ones about half as long. There are but one or two 

 heads on each stem at the summit, each on a peduncle longer than 

 the leaves. The heads are about an inch in diameter, rather loosely 



