Bui. 1074, U S. Dept of Agriculture. 
Plate XXI 
\ 
%^>Y 
\^^' 
\f 
J 
B 
mm 
Glyndon (A). 
Wellman (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. 
