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. combulliens, (B. & €.) 



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

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



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

 minute ostiolum. Sporidia nniseriate, oblong, uniseptate." 

 On stems of Arundinaria, (South Carolina) ? 



D. jiincina, (B. & Rav.) 



Sphizria j'uncina, 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. GNOMONIEJ]. 



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 {Qnomoniella). 

 G. curvicolla, (Pk.) 



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

 Gnomoniella curvicolla, Sacc. Syll. 1584, 

 Gnomonia curvicolla, Cke. Syn. 3856. 



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

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

 subcylindrical, slightly curved. Asci oblong. Sporidia crowded or 

 biseriate, colorless, 15-23 x7| //.. 



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



