PLANT DISEASES. 



731 



1. A young Snowdrop badly diseased, nat. size. 2. Fruiting branch of the 

 Botrytis, or summer form of the fungus, x 350. 3. A Snowdrop bulb with sclerotia, 

 nat. size. 4. Isolated sclerotia, nat. size. 5. A sclerotium bearing a crop of 

 Botrytis, the spring following its formation, x 10. 6. Botrytis conidia germinating, 

 X 400. 7. An organ of attachment of the Botrytis, x 400. 8. Chains of conidia of 

 unknown use, formed on mycelium of the Botrytis, x 400. 



