Bui. 1074, U. S. D 



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ept. of Agriculture. 



11 



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PLATE LVI. 



I" 



I * 



mPmim 



HI 



IV 1 



f A 



r B 



Acme (A). 



Kahla (B). 



Spike, side view, natural size; glumes from lower, central, and upper portions of spike, natural 

 size; kernels in three positions and in transverse section, magnified 3 diameters. 



