EXPERIMENT STATION REPORT. 



401 



from a pliotograph of two diseased pods, while the mined flower clus- 

 ters are similarly shown in. Figure 4. 



A microscopic examination of the affected part of the plant shows 

 that it is penetrated by the slender threads of the fungus, which come 



FiK. 4. 

 Lima Bean Flowers Ruined by Mildew. 



to the surface and there produce tufts of branching filament* and bear 

 multitudes of spores, all of which constitute the light mouldy cover- 

 ing and suggests the common name of do^vTly mildew that is given to 

 many members of this family. For example, there is a closely-related 



26 



