Tanaka : New Japanese Fungi 



85 



The disease does not usually prevent fruiting, but sometimes 

 does when it occurs abundantly in the early stage of the host plant. 

 In 1 90 1 the disease was first discovered by K. Sengoku in the pre- 

 fecture of Ehime, Shikoku island, and the above description is 

 probably based upon the material collected at this time. It has not 

 been reported from any other locality in the Japanese territory. 



Illustration : One black-and-white wood-cut figure showing 

 sporangia. 



Notes : Physoderma zeae-maydls Shaw, first reported from India 

 (Sydow, H., Sydow, P., & Butler, E. J., in Annales mycologici io 3 : 

 245-247, fig. 2. 1912), and now known as the causal organism of 

 one of the worst diseases of corn in the United States (see Tisdale, 

 W. H., in Journ. Agr. Res. 16 5 : 137-154, 10 pis., Feb., 1919), is, 

 in many respects, identical with the present species, though no 

 actual comparison of the organism has yet been carried out. Plant 

 quarantine against this fungus was announced by the U. S. De- 

 partment of Agriculture in 191 6 (see Notice of Quarantine No. 24. 

 1916). 



Mycosphaerella bambusifolia Miyake & Hara sp. nov. in 

 Shokubutsugaku Zasshi (Bot. Mag.) Tokyo, 24 s86 : 338-340, 

 M. 43, xi, Nov., 1910. (Japanese.) 



Foliicolous ; pycnidia punctiform, black to the naked eye, im- 

 mersed, globose or depressed-globose, fuliginous, open at the apex, 

 70-100 x 60-90 jx\ pycnospores abundant, oozing from pycnidial 

 opening when mature, ellipsoid ovoid or cylindrical, hyaline, 2-3.5 

 x 1-1.5 fx; pedicels minute; perithecia mixed with the pycnidia, 

 globose or depressed-globose, 70-100 \x broad, 90-100 fx high, rarely 

 60 fx in diam. ; wall thick, fungoid-parenchymatous, fuscous or 

 black, ostiola as high as the epidermal plane or slightly raised ; asci 

 many, fasciculate, oblong-ovoid and more or less stipitate below or 

 fusoid-lunate and obtuse at both ends, 37-50 x 9-10 /x, octosporous, , 

 aparaphysate ; ascospores distichous, ovoid or ellipsoid, uniseptate, 

 usually not constricted, hyaline, at first granular, usually becoming 

 homogeneous later, 13-16 x 4.5-5 fx. 



Parasitic on Phyllosiachys puberula and Phyllostachys bambu- 

 soides. 



Infected leaves develop round, elliptical, or irregular fuscous 



