Aristida asperosa, Tris. & Rupr. l.c. p.129 var ?. Bris Sula, Parry & Schott; Wright No. 2001 & 740 col. of 1849. Doubtfully referred to the above of which we have seen no authentic specimens. Aristida Californica, sp. nov. Caules caespitosi, dwrf, gemiculate & fasciculately branching; clearly distinct pulcent, pilose at the nodes, sheaths loose, striate, shorter than the nodes; lightly pubescent when young, hairy at the throat. Ligulae short, frimbiate. Radicular leaves, 1 1/2 inches long, base of the culms 3/4 - 1 inch in length; concolute glifum, ligule, hairy. Panicles about 1 1/2 inches long, about 6 flowered; the lower flowers, in pairs 1 sepale. The upper stamens pedicled. The upper ones solitary. Glumes very unequable, the lower 3/4 times half the length of the upper which is almost 7 lines. Colored; membranaceous, 1-nerved which is barely textures. When old somewhat rigid at the apex. Flower shorter than the lower glume, furnished upon a callus long in proportion to the size of the glume (1 line), conspicuously beaded. Lower pullea 1 3/4 - 2 lines long; musculated & black when old, slightly ventrous above. Arms united into a twisted, style which minutely serrated style which is almost twice the length of the lower pedicle with which it is articulated and from which,