﻿540 Dodge: Effect of host on Gymnosporangium 



turn or as G. fratemum, or as both. We must also have further 

 confirmation of the experiments recorded above in connection 

 with converse inoculations of the cedar with G. fratermim on 

 Aronia (Roestelia transformans on Aronia). Experiments bearing 

 on these points are under way. 

 Columbia University, 



Department of Botany 



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