Salmon : The Erysiphaceae of Japan 441 



E. graminis. — Europe (throughout); Africa (Algeria); Asia 

 (Cyprus, Transcaucasia, Persia, Turkestan, Siberia (Minussinsk) ); 

 Australia (South, Victoria and New South Wales); North Amer- 

 ica (United States (throughout) and Canada (Ontario, Newfound- 

 land) ). 



E. polygoni. — Europe (throughout); Africa (Canaries, Algeria); 

 Asia (Transcaucasia, Turkey, Persia, Turkestan, India, Siberia 

 (Minussinsk)); Australia (Victoria); New Zealand ; North America 

 (United States (throughout) and Canada (Manitoba, Ontario, New 

 Brunswick) ). 



Microsphacra alni. — Europe (throughout) ; Asia (Transcau- 

 casia) ; North America (United States (throughout) and Canada 

 (Manitoba, Ontario, New Brunswick) ). 



M. bcrberidis. — Europe (throughout) ; Asia (Cyprus, Trans- 

 caucasia, Turkestan). 



M. grossulariac \ — Europe (throughout); North America 

 (United States (throughout) ). 



PJiyllactinia corylca. — Europe (throughout) ; Africa (Algeria); 

 Asia (Transcaucasia, Turkey, Siberia (Minussinsk), China (Yun- 

 nan)); North America (United States (throughout) and Canada 

 (Ontario, Newfoundland); Central America (Guatemala); South 

 America (Paraguay, Patagonia). 



Podosphacra leucotriclia. — Europe (probably widely spread ; 

 recorded from Germany, Austria-Hungary and Russia); North 

 America (United States (Vermont, Wisconsin, Iowa, Missouri, 

 Kansas, Mississippi) ). 



P. oxyacantJiac. — Europe (throughout); Africa (Algeria); Asia 

 (Siberia (Minussinsk) ); North America (United States (through- 

 out), and Canada (Ontario, New Brunswick), Greenland. 



P. oxyacanthac var. tridactyla. — Europe (throughout); North 

 America (Washington (State)). 



Sphacrothcca humuli. — Europe (throughout); Africa (Algeria); 

 Asia (Transcaucasia, Turkestan, Siberia (Minussinsk));. North 

 America (United States (throughout), and Canada (Ontario, New 

 Brunswick, Newfoundland). 



5. humuli var. fidiginea. — Europe (throughout). Asia (Tur- 

 kestan, Siberia (Minussinsk)); North America (United States 

 (throughout), and Canada (Ontario, New Brunswick)). 



