Explanation of Plates 



PLATE XTV. 



A. — Healthy and diseased plants (one-tenth natural size). 

 B. — Health}' Ear or Panicle (reduced 2| times). 

 C. — Smutted Ear (reduced 2^ times). 

 D. — Sound grains ( x 3). 

 E. — Smutted grains ( x 3). 



