Bui. 1074, U. S. Dept. of Agriculture. 



PLATE LI I I. 



COPPEI (A). 



Mayview (B). 



Spikes, face and side views, natural size; glumes from lower, central, and upper portions of spike, 

 natural size; kernels in three positions and in transverse section, magnified 3 diameters. 



