Tanaka: New Japanese Fungi 



331 



ones much longer and narrower, every cell binucleate at first, 

 later becoming homogenous, hyaline, 10-13 x 2-2.5 /x. 



Parasitic on leaves of Thea sinensis. 



Type locality: Gifu-ken Ena-gun Kawaue-mura, Apr., 1918, 

 K. Hara. 



-Illustrations: 4 black and white halftone figures (figs. 5-6) 

 showing spots, perithecia, asci and ascospores. 



It differs from Mycosphaerella punctiformis in mode of occur- 

 rence and in detailed characters of ascospores. 



Spots first appear on the surface of leaves as small, round, 

 dark-colored areas of 1 mm. across, which enlarge gradually 

 forming irregular patches of 3-4 mm. in diam., and later becom- 

 ing confluent forming large irregular dead areas extending 

 towards the leaf margin. Such areas are dark-colored brownish- 

 gray and develop abundant black minute specks on the upper 

 surface, while the lower surface of the leaf remains a dark-brown 

 color. 



Mycosphaerella Ikedai K. Hara sp. nov. in Chagyokwai (Tea 

 Journal) 14 5 : 10, 1 pi., T. 8, v, May, 1919. (Japanese.) 



Perithecia amphigenous or more frequently hypogenous, gre- 

 garious or scattered, immersed, globose or depressed globose, 

 apically ostiolate 50— 80 /x in diam., wall parenchymatous, con- 

 sisting of polygonal cells 5-8^ in diam. across, carbonaceous 

 ostiola papillate or simple, with round openings of 10-12 /x across, 

 asci obovoid or oblong, rounded at the apex, pedicellate at the base 

 or sessile, octosporous, 40-45 x 8-12 /x, ascospores 3-stichous or 

 irregularly polyseriate, oblong-ovoid or cylindric, uniseptate, 

 much constricted, cells unequal, upper ones mostly shorter and 

 broader while lower ones are just opposite, at first granulate, later 

 homogenous, colorless and hyaline, 13.2-16x5-5.5^. 



Saprophytic on leaves of Thea sinensis. 



Type locality : Shidzuoka-ken Inasa-gun Idaira-mura, Sept., 

 1918, K. Hara. 



Illustrations: 2 black and white halftone figures (figs. 9 and 

 10) showing asci and ascospores. 



M. Ikedai K. Hara differs from the former species in the shape 

 of the asci, arrangement, shape and size of the ascospores. It is 



