32 



VEGETABLE SUBSTANCES. 



Ear and Plant of Winter Wheat 



able to some peculiarities in the mode of culture. 

 The common varieties of winter wheat are distin- 

 guished from each other according to the colour of 

 the tunic enveloping the grain, and the difference 

 observable in their chaff. The colours are usually 

 divided into white and red, the latter of these in- 

 cluding many different shades of brown. Red wheat 

 is commonly said io be more hardy than white; it is 

 therefore thought better suited for cultivation in bleak 

 and upland districts. The plant is, however, not so 

 productive as the white, and the flour which it yields 

 is seldom of so desirable a quality. 



The cultivation of another description of wheat, 

 called, from the form of the ear, the DUCK-BILL, or 



