RUST FUXGI 



20; 



species of violets^m_Asia, Europe, Northland South America. It is 

 autoecious. 



FiC- 74- — filches" brooan caused by Gymno- 

 sporangium EUisii. [Aflcr Harshberger, Proc. 

 Ac4sd. Nat. Sci. P'r.i'.a.. Jtfor, 1902.) 



Fig. 75. — A. Protmding n]i- 

 i'Z'Tjr. horns of lie mst fungus. 

 GymoHSptfrangiuwi EUisii on -white 

 cedar; B, teliospcre- (May 27, 

 1916.) 



Mint Rust, Pucclnia metdha, i; also an autoecious rust. 

 Maize Rust, Pucdnia sorgki, is widely distributed in maize-gTOwing 

 countries. Its aecia are les common on various species of Oxalis. 



