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



FIGURE 426 ^4, Triplasis purpurea. Plant, X *A; spikelet, floret, and cleistogamous spikelet, X 5. (Com- 

 mons 255, Del.) B, T. americana. Panicle, X 1; floret, X 5. (Curtiss 5570, Fla.) 



