Bui. 1074, U, S. Dept of Agriculture. 
PLATE XI. 
r% MH i 


Pacific Bluestem (A). 
Gypsum (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. 
