Inv- in the ' 



MYCOLOGY. 







DR. OSCAR BREFELD. 



Part XIII. 



Smut Fun^i (1 I.-iinha-ulia IV). 

 (Continuation of Parts \ . XI and Xll). 



Conteii 1 



O. BREFELD, R. I >n by Smuts and 



Natural Distribution of Smut Diseases. 



With Two Phototype Plates. 



MIELD BY HF.r 



