A STUDY OF WHEAT. 



I I 



epidermis as it covers the vascular bundles or ridges found running 

 lengthways of the straw. The larger cells, at C, are found covering 

 the grooves seen in the depressions in Fig. i between the vascular 



FIG. 3. EPIDERMIS OF WHEAT STRAW. 



A, Rows of Stomates. B, Opposite, or over the Vascular Bundles seeu at A, Fig. 1. 

 Drawn with Camera Lucida, X 75. 



bundles. At A, we find peculiarly modified cells surrounding open- 

 ings that are the regular breathing places, called stomates. The 

 wheat plant must be able to breathe, to exchange gases with the 



FIG. 



-A 



EPIDESMIS OF WHEAT STRAW. 



Same as Fig. 3, magnified more. A, Stomates or Breathing Places. Drawn with 

 Camera Lucida, X 375. 



