PLATE LIV. 
1674, U. S. Dept. of Agriculture. 
Bul. 
TITANIC (B). 
ALASKA (A). 
Spike, side view, natural size; glumes from lower 
? 
ns of spike, natural size 
magnified 3 diameters. 
, central, and upper portio 
itions and in transverse section, 
kernels in three pos 
Eee 
