370 



MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



Figure 519. — Lagurus ovatus. Plant, X Yi\ spikelet and floret, X 5. (Heller 5340, Calif.) 



Glumes obtuse. 



Panicle open, the branches spreading; lemma 2.5 to 3.5 mm. long. 



7. M. MICROSPERMA. 



Panicle very narrow, the branches appressed; lemma 4.5 to 6 mm. long. 



8. M. APPRESSA. 



2b, Lemma awnless (see also M. texana). Culms branching and panicle-bearing at base. 



