Bui. 1074, U. S. Dept. of Agriculture. 



Plate XXIV. 



Allen 'Aj. 



Foisy <B). 



Spike , face and Ide i lew . natural Blze; glumes from lower, central, and upper porl inns of spike, 

 nat'j' ■ kernel In throe positions and in tran verse section, magnified 3 diameters. 



