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





Figube 266.— .4. Briza minor. Plant, X Vi\ spikelet and floret, X 5. (Hitchcock 2597, Calif.) B, B. maxima., 

 X 3-2. (Baenitz, Dalmatia.) C, B. media. Panicle, X Vi- (Oakes, Mass.) 



