POTRTO BLIGHT. 



{^Phulophthora inlestans .J 



Section or Por/iToU/ir a 

 nrrocTCD with thc Blight. ^"'— °' G..n.Tuie' 



tnio the LeoA 



Fig. 15. l"'rom drawings by De Bary, Ward and Jones. The fungus 

 threads and spores, though nearly colorless, are colored in the drawing 

 to make thoni stand out more distinctly. 



