540 



BACTEKIAL DISEASES OF PLANTS 



, m 



Fi(i. 411. Hyperplasias on tumefied potato shoots germinating on a table 

 without soil or water. Diffused north light, temperature 25C. Shoots full fo 

 starch, sugar, acids and oxydizing enzymes. The intumescences were under wide 

 open stomata (See Fig. 413.) 



