ASCOMYCETES 183 



III. PLUM POCKETS 

 Exoascus Pruni Fuckel 



This fungus is the cause of the well-known deformities of 

 the domestic plum, Primus domestica, and it is very generally 



Fig. 67. Plum Pockets on Cultivated Prunus. (Photograph by 

 H. H. Whetzel) 



distributed throughout Europe and portions of the United States. 

 The etiology and general life history is not sufficiently different 

 from the peach leaf curl to require detailed treatment, but the 



