1893.] NATURAL SCIENCES OF PHILADELPHIA. 445 



moderately curved, minute, about ox £-{,". The asci resemble 

 those of Calosphwria. 



Distinct from any of the described species in its minute perithecia 

 and minute allantoid sporidia. 



Melanopsamma borealis E. & E. 



On bark, Newfoundland, May, 1893. (Rev. A. C. Waghorne). 



Perithecia gregarious, superficial globose or depressed- globose, 

 rugose- roughened, black, 400-500,". diam. Ostiolum papilliform, 

 the apex of the perithecium around it irregularly cleft and torn so as 

 to resemble the blossom end of an apple. Asci clavate-cylindrical, 

 short-stipitate, 75-80 x 7-8//, paraphysate, 8-spored. Sporidia 

 clavate-oblong, hyaline, uniseptate and constricted at the septum, 

 14-16x5-6//, much resembling the sporidia of Glonium lineare 

 (Ft. ). 

 Melanopsamma nucigena E. & E 



On old hickory nuts lying on the ground, Newfield, N. J. May, 



1893. 



Perethecia gregarious, brown, superficial, ovate, 200-250// high, 



about 150//. broad tubercular- roughened, clothed at first with a short, 

 brown pubescence and scattering, short, pale hairs ; ostiolum papil- 

 liform, soon perforated. Asci clavate-cylindrical, 60-70 x l;x, 

 short-stipitate, paraphysate, 8-spored. Sporidia biseriate, fusoid, 

 slightly curved, 3-septate, not constricted, 15-20x3^-45//, yel- 

 lowish-hyaline. 



Differs from M. abscondita E. and E. in its narrower, rather 

 shorter sporidia, not at all constricted, and its ovate or ovate- conical 

 perithecia and from Trematosphceria nuclearia De Not. in its 3-sep- 

 tate sporidia. 



Melanomma deciduum E. & E. 



On black ash R. R. ties and on wood of cedar rails, Potsdam, New 

 York, March, 1860. 



Perithecia superficial, scattered, globose, black, collapsing when 

 dry, with short, brown, scattering hairs, especially below, 300-400// 

 diam., with a minute, papilliform ostiolum. Asci cylindrical, short- 

 stipitate, 60-70 x 6//, paraphysate, 8-spored. Sporidia biseriate, 

 fusoid, 3-septate, constricted at the middle, septum pale brown, 15 — 

 18 x 3//, ends acute. 



Differs from M. inspissum (Schw), in its larger perithecia and 



