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



Figure 239.— DisticKLis stricta. Staminate plant, X H; laminate spikelet and floret, X 5 (Mearns 3132 Calif ) • 

 pistillate panicle, X 1; pistillate floret, X 5 (Sandberg and Leiberg 463, Wash.). 



22. UNIOLA L. 



Spikelets 3- to many-flowered, the lower 1 to 6 lemmas empty, the rachilla 

 disarticulating above the glumes and between the florets; glumes compressed- 

 keeled, rigid, usually narrow, 3- to 7-nerved, acute or acuminate, rarely mucro- 



