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



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

 4440, Calif.) B,H. mollis. Plant, X 1; glumes and florets, X 5. (Tracy 2646, Cahf.y 



