322 



-. 



" Minute, covered by the cuticle. Ostiola projecting, papilliform. 

 Asci linear. Sporidia fusoid, narrow, at length uniseptate." 

 On stalks of some herbaceous plant, Virginian Mountains. 



D. comMlliens. (B. & C.) 



Sphceria combulliens, B. & C. Grev. IV, p. 147. 

 Didymella combulliens, Sacc. Syll. 2192, Cke. Syn. 4421. 



"Scattered, covered by the cuticle, with the exception of the 

 minute ostiolum. Sporidia uniseriate, oblong, uniseptate." 

 On stems of Arundinaria, (South Carolina) ? 



D. jiincma, (B. & Rav.) 



Sphceria juncina, B. & Rav. Grev. IV, p. 145. 

 Didymella juncina, Sacc. Syll. 2184, Cke. Syn. 4413. 



" Forming little discolored patches which are studded with the 

 ostiola. Sporidia oblong, uniseptate, constricted slightly at the septum.'' 

 On JuncuS) South Carolina. 



FAMILY. GNOMONIEJI. 



Perithecia as in the Sphcerelloidece, but with a cylindrical or 

 subulate ostiolum. Asci mostly without paraphyses. Sporidia oblong, 

 fusoid or filiform, continuous or uniseptate, hyaline. 



GNOMONIA, Ces. & De Not. 



Schema Sfer. p. 57, Sacc. Syll. I, p. 561. 



Perithecia covered or erumpent, submembranaceous, glabrous, 

 generally separate. Ostiolum more or less elongated, cylindrical, cen- 

 tral or lateral. Asci mostly aparaphysate, 4-8-spored, often perforated 

 at the apex. Sporidia oblong, elliptical or 'fusoid, continuous or uni- 

 septate, hyaline. Fungi minute, foliicolous or more rarely caulicolous. 



A. Sporidia continuous, oblong or fusoid (Gnomoniella). 

 G. curvicolla, (Pk.) 



Sphceria curvicolla, Pk. 31st Rep. p. 50. 

 Gnomoniella curvicolla, Sacc. Syll. 1584. 

 Gnomonia curvicolla, Cke. Syn. 3856. 



Perithecia small, 75-100 /i diain., scattered or 2-3 confidently 

 crowded, erumpent, at length naked, hemispherical, black. Ostiola 

 subcylindrical, slightly curved. Asci oblong. Sporidia crowded or 

 biseriate, colorless, 15-23 x7j ji. 



On decaying stems of Polygonum articulatum, Center, N. Y. 



