lTO:A NEW FI'X«tI"S disease OF THE YaM. \\ 



hyaline, 18-30x3-3.5 u. 



C'oninia filiform or elavate-cylindrical, mostly t-urved or straight, round^il at 

 both ends, smooth, guttulate, obscurely septated, 1-4 celled, hyaline, 26-67.5 x 2-3.5 a. 

 Hab. On Dio-scorea Batatas Dene. 

 Honshu: — Ptov. Kiknchü, Mwioka .Sept. 1911. «t. Yxm-U>a;}. 



Hokkaido : — Prov. thikari, Sipporo :Sept. 14, 1805. K. Mjyabe ä J. H-cn-zaw a; O«. 24, I»>4. 

 T. Miyake; Oct. 1906; Sept. 1907; Sept.— Oct. 1911. S. Ito:;— v^hiroiAi (Sept. 1907. S. lvt\ 



Prov. Oshima, Kitainnra Sept. 1, 19«>5. KL Mnr.xjJE'J — Yamaiuika iSepi. 2. 1905. K. Miyabk). 



On Dioscorea japonica Thunb. 

 Kiodiür-Prov-. Oku Nagu, Togo (Aug- 19 r2. E. ToKrRr»-Hi\ 

 HoiKhü : —Tokyo Sepi. 1889. K. Mitabe). 



Prov. Echig... Mt. (.n>mado .Aug. 20, 1908. S. InO. 



Phytopathological Laboratory, 

 Feb. 1912. Collie of Agriculture, 



Töhoku Imperial University, 

 Sapporo, Japan. 



35 



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