97 
18, Danthonia Lam, & DC. Oatgrass, ; 
tufted perennials with oven or Compact panicles; spikelets severale> = / 
flowered, disarticulating above the glumes and between the florets; glumes 
lancsolate, acute, exceeding the florets; lemmas rounded on the back with 
a strong callus at the base, bearing a flat geniculate twisted avn from 
between the aristate teeth of a bifid QDEX. 
DO vanicles open, the branches spreading le De californica 
5 Penicies dense, the branches appressed, or the 
4 vanicles reduced to a single spikelet 
2 Lemmas glabrous on the back 
4 Spikelets several; sheaths glabrous or 
& sparsely pilose Ze De intermedia 
A Spikelets usually one, or sometimes two; sheaths 
8 conspicuously retrorsely pilose oe De unispicata 
2 Lemmas sparsely pilose on the back 4- UD. spicata 
1. be californica Boland, Culms tufted, erect, 30-60 cm, tall; sheaths 
smooth with a tuft of hairs at the mouth; blades attenuate to a fine point, 
scabrous on both surfaces, 2-4 mm, wide; panicles open, with 2-5 svikelets, 
the branches pubescent, usually spreading or even reflexed, with rather 
conspicuous pulvini at the base; spikelets about 2 cm, long, the glumes 
exceeding the florets; lemmas glabrous on the back, pilose on the margins, 
the teeth long-aristate, 
Cliffs along St. Maries Re, 2900 ft., Leiberg 1069, 
vare americana (Scribn,) Hitche. Liffers from the Svecies in having 
pubescent or pilose sheaths,— —> 
ain — J ry or moist meadows and open zround. le Smet Mission, 2700 ftes; Voscow, 
