134 PROCEEDINGS OF THE ACADEMY OF [1893. 



Perithecia scattered or subgregarious, superficial, ovate-conical, 

 black and subshining, minute, 150-200/t diam., with a conic-papilli- 

 form ostiolura. Asci fusoid, i. e. thickest in the middle and taper- 

 ing to each end, obscurely paraphysate, 8-spored, about 50 x 5-6/t. 

 Sporidia biseriate in the middle of the ascus, uniseriate at each end, 

 oblong-elliptical, hyaline, binucleate, 5-6 x li-2$fi. 



Sphaerella dircae E. & E. 



On living leaves of Dirca palustris, London, Canada. July, 1892. 

 (Dearness, No. 1,941.) 



Spots amphigenous, dark brown below, dirty white above with a 

 dark brown border, irregular in shape, 2-4 mm. diam., subconfluent, 

 often se'veral of the dirty white spots included in a large dark brown 

 area. Perithecia epiphyllous, scattered on the spots, subprominent, 

 perforated above, 80-110//. diam. Asci oblong-cylindrical, about 

 35 x 6/t. Sporidia biseriate, oblong, uniseptate, hyaline, scarcely 

 constricted, 15-20 x 5-6//.. 



A Macrosporium was found on the same spots. 



Sphaerella oryzopsis E. & E. 



On leaves of Oryzopsis asperifolia, Lansing, Mich. May, 1892. 

 (G. H. Hicks, No. 573.) 



Perithecia scattered or oftener in definite patches about 1cm. 

 diam., sunk, except the subobtuse, slightly projecting apex, in the 

 parenchyma of the leaf, small (75-80//.), black. Asci fasciculate, 

 sessile, aparaphysate, 35-40 x 10-12 //., 8-spored. Sporidia biseriate, 

 clavate-oblong, hyaline, uniseptate and slightly constricted at 

 the septum, 12-15 x 3-32/*. 



Apparently closely allied to S. oryzce (Catt.), but differs in its 

 oblong-fusoid asci, and sporidia. 



Sphaerella solani E. & E. 



On leaves of Solanum dulcamara. Ohio, Kellerman, No. 412, and 

 London, Canada. (Dearness, No. 866.) 



Spots numerous, small (1-2 mm.), round, white, deciduous, thin 

 and pellucid. Perithecia mostly epiphyllous, few on a spot, lentic- 

 ular, perforated, 80-110//. diam. Asci oblong, 35-40 x 10/* apara- 

 physate, 8-spored. Sporidia biseriate, fusoid-oblong, uniseptate, 

 scarcely constricted, 10-12 x 3//., ends subacute. 



Not distinguishable outwardly from Leptosphozria solani E. & E. 

 which is found on the same leaves. 



