269 



STATE BOARD OF AGRICULTURE. 



Fig. 1. THE FUNGUS OF THE L.\TE BLIGHT OF THE POTATO. 



Phytophthora Jnfeslnns. 

 (.\ftcr.U. S. Dept. of Agr.) 



1. Spore stalks showing spores falling off. 



2. Spore eases bursting and sporos germinating. 



3. The mycelium p;issing between the cells of the leaf. „nHpr<!idP 



4. Section of Potato leaf showing the first bearing stage of the fungus appearmg on the underside 

 of the leaf. 



