28 THE WHEAT CULTIJKIST. 



The germination of a kernel of wheat is further illus 

 trated by the figure herewith given, which represents 

 a grain of wheat highly magnified. B represents the 

 body of the kernel, composed of starch and gluten. A 

 is the cellular tissue, the original covering of the embryo 

 blade. C is the main root ; and D shows the hard cellular 

 matter which constitutes the base of growth of the root 

 and stem. E, E, E are free cones of cells at the 

 points of roots. F, F are lateral roots, a is the future 

 stalk or plumule, d is the course of bundle of dotted 

 fibre. 0, e, e are suckers ; and/ 1 , i represent the course 

 of spiral fibre. A, A, h show the cellular tissue, or 

 covering of the blade. 



FIG. 4. 



SPONGIOLES. 



I have met with certain botanists who sneer at the 

 idea of there being spongioles at the ends of the roots 

 of wheat. Yet, all the most reliable authors of trea 

 tises on botanical subjects speak of spongioles. And if 



