Bui. 1074, U. S. Dept. of Agriculture. 
Plate XLVIII. 
PRELUDE (A). 
Humpback (B). 
Spike, face ^■ie\v, natural size: glumes from lower, central, and upper portions of spike, natural 
size; kernels in tliree positions and in transverse section, magnified 3 diameters. 
