300 MISC. PUBLICATION 200, U. S. DEFT. OF AGRICULTURE 



Figure 593.-^4, Holcus lanatus. Plant, X *A; spikelet, florets, and mature fertile floret, X 5. (Griffiths 

 4449, Calif.) B, H. mollis. Plant, X 1; glumes and florets, X 5. (Tracy 2646, Calif.) 



