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



FIGURE 1692. .4, Tripsacum dactyloides. Plant, X Yz, pistillate spikelets with rachis joint and pair of 

 staminate spikelets with rachis joint, X 5. (Amer. Gr. Nat. Herb. 229, Va.) B, T. floridanum, X I. 

 (Hitchcock 686, Fla.) 



