MANUAL OF THE GRASSES OF THE UNITED STATES 285 



FIGURE 559. ,4, Trisetum spicatum. Plant, X Yi, spikelet and floret, X 5. (Rydberg and Bessey 3593, 

 Mont.); B, T. canescens. Panicle, X 1; glumes and floret, X 5. (Hitchcock 3409, Calif.) 



