268 



THE WHEAT PLANT 



456 



12 13 14 15 16 17 18 19 20 21 22 



FIG. 165. Empty glumes of bearded forms of Bread wheat (T. vulgare) ( x 2). 



13 14 15 16 17 18 19 20 21 22 23 24 25 



FIG. 166. Empty glumes of beardless forms of Bread wheat (T. vulgare). 



