Bui. 1074, U. S. Dept. of Agriculture. 
Plate Lll, 
A 
nM 
B 
% 
Iw^pc 
w 
Dale (B). 
Bluechaff (A). 
Spikes face and side views, natural size: glumes from lower, central, and upper portions of spike, natural 
' size; kernels in tliree positions and in transverse section, magnified 3 diameters. 
