1894.] NATURAL SCIENCES OF PHILADEJ^PHIA. 329 



Perithecia scattered, erumpeut-superficial, black, glabrous, ovate- 

 globose, 200-225,". diam., at length more or less collapsing above. 

 Ostiolura papilliforni, minute. Asci oblong-cylindrical, short-stipi- 

 tate, paraphysate, 75-110x10-12;/. Sporidia overlapping uniseri- 

 ate, or more or less perfectly biseriate, obovate, hyaline, becoming 

 pale- brown, 3- septate, 12-15x6-7//. 



Some of the perithecia are sub-elliptical. 



Differs from M. obliterans B. & Br. in its habitat (on wood of 

 deciduous tree), and its constricted sporidia; from 31. CaUllus Sacc. 

 in the character of the sporidia and smaller perithecia, nor does it 

 seem referable to any other species with 3-septate sporidia. 



Trematosphseria vitigena E. & E. 



On old, decaying wood of Vitis rupestris, Nuttallburg, West Va,, 

 Apr., 1894 (L. W. Nuttall, No. 454). 



Perithecia gregarious, sunk in the wood all except the obtuse, con- 

 vex apex, 5--I mm. diam., depressed- globose, the buried part rather 

 thin- walled, the erumpent, convex apex thick, solid, like the stro- 

 matic shield of Clypeosphcer'vj. Ostiolum papilliforni, soon per- 

 forated. Asci clavate-cyliudrical, paraphysate, 8-spored, 86-100 x 

 10-12//. Sporidia sub-biseriate, fusoid- oblong, 3-septate, and con- 

 stricted, sub- acute, pale- brown, 20-25x6-7//. 



Trematosphssria Fraxini E. & E. 



On dead limbs of Fraxinus viridis that had lain for some time in 

 water, Rockport, Kansas, Feb., 1894 (Bartholomew, No. 1,373), 



Perithecia scattered, semi-erumpent, small, elliptical (on a 

 horizontal section), 300-500 x 250-300//, the base sunk nearly to 

 the wood, the erumpent apex closely embraced by the epidermis. 

 Ostiolum papilliforra, soon deciduous and then, perithecium per- 

 forated. Asci clavate, short-stipitate, paraphysate, 70-80x12-15//, 

 8-spored. Sporidia overlapping below, biseriate above, fusoid-oblong, 

 brown, 3-septate and constricted at all the septa, often with one cell 

 swollen, slightly curved, 20-27 x 6-8//. 



The specc. of Sphceria vielina B. & Br. in Rab. F. E. , 1835, 

 have perithecia ovate-conical, h—\ mm. diam. and sporidia uniseriate, 

 4-6-nucleate, not constricted, straight, 22-30x12-15// and are cer- 

 tainly different from this. 



Teichospora (Teichosporella) Ohiensis E. &E. 

 On hard wood, Ohio (Morgan, No. 1,012), 



