554 



BACTERIAL DISEASES OF PLANTS 



Fig 416 —Enlarged view of some of the gall chambers of Fig. 4155 together 

 with a few of the abnormal leaves. The nearest approach I have seen to such 

 leaves is on the calyx but the dissected calyx-leaves are very glandular while 

 these are not. Possibly there are leaves of this sort on the seedhng or on the an- 

 cestors of this rose. 



