286 



Mycologia 



Pycnidia ellipsoid or conoid, immersed, later erumpent, with 

 single, apical ostiolum, i6ott across; ostiola papillate, dark-bor- 

 dered; perithecial wall pseudo-parenchymatous, not very thick, 

 paler inside, increasingly dark outwards ; mycelia surrounding 

 perithecial wall dark-colored, mixing with colorless ones which 

 predominate farthest from pycnidia ; pycnospores mostly elliptic, 

 frequently cylindric with blunt ends, or ovoid, septate at the mid- 

 dle, not constricted, 9-1 1 X 3-5-40/*, walls colorless, protoplasm 

 pale-greenish, usually not conspicuously granulate but rarely one- 

 nucleate in each cell ; pedicel colorless and hyaline, short. 



On branches of Morus alba. 



Type localities : Fukui-ken prefecture, Japan, March, 1909, K. 

 Hara; Idu-no-kuni, Shidzuoka-ken, Japan, Apr., 1909, I. Miyake. 



Illustrations : Two black and white lithographic figures show- 

 ing pycnidium and pycnospores. 



Ascochyta moricola Berl. differs from this species in having 

 dark-colored fusoid pycnospores pointed at both ends, and con- 

 stricted at the septum. 



Note: As the name Ascochyta mori has already been used by 

 R. Maire (Ann. Myc. n 4 : 354, Aug. 1913), I propose a new 

 name, Ascochyta Miyakei for this species. 



Stagnospora mori I. Miyake sp. nov. in Sangyo Shikenjo Hokoku 



(Technical Report, Imperial Sericultural Experiment Station), 

 Tokyo, Japan. I 5 : 348, pi. 17, figs. 22, 23. T. 4, xii, Dec. 1916. 

 Japanese.) 



Pycnidia sub-epidermal, walls of thick pseudo-parenchymatous 

 tissue, dark-brown, ellipsoid or globoid, erumpent with short 

 papilliform openings, 130-160 X 120-150 fx ; ostiola black and 

 darker than the pycnidial wall; pycnospores cylindric, slightly 

 curved, sometimes inequilateral, rounded at both ends, 3-septate, 

 one septum formed earlier, more or less constricted, colorless, 

 hyaline, granulate, germinating from either end or from both at 

 the same time; 21-26x6-9/*; pedicel short, small; paraphyses 

 filiform, straight or slightly curved and twisted, the innermost the 

 longest, shortening toward the opening. 



Illustrations : Two black and white lithographic figures show- 

 ing pycnidium and pycnospores. 

 On twigs of Morus alba. 



