446 PROCEEDINGS OF THE ACADEMY OF [1893. 



more scattered mode of growth and its longer, narrower, fusoid, (not 

 ovate-oblong) sporidia. 



Teichospora nucis E. & E. 



On old hickory nuts lying on the ground, Newfield, New Jersey. 

 May, 1893. 



Perithecia scattered or loosely gregarious, superficial or erumpent 

 superficial, black, small, conic- hemispherical, 125—150// broad, 

 100-110// high, with a papilliform ostiolum, finally col lapsing above. 

 Asci oblong- cylindrical, 70-75x12-15//., abruptly contracted at base 

 with a very short, nodular stipe. Paraphyses filiform. Sporidia 

 obliquely uniseriate, or subbiseriate, elliptical, yellow (becoming 

 brown or even opake), about 5-septate, with a longitudinal septum 

 more or less perfect, sometimes constricted in the middle, 14-18 x 8— 



9/7.. 



Comes near T. Emilii Fabre, but perithecia much smaller and 

 not sprinkled with any white powder. 



Didymosphseria vagans E. &E. 



On dead limbs of Ostrya, Carya, and Ulmus, London, Canada. 

 May, 1893. (Dearness Nos. 2110, 2113, 2113 b.) 



Perithecia densely gregarious, small, J— 3 mm. diam. , white inside, 

 covered by the epidermis which is raised into pustules and blackened 

 directly over them and finally pierced by the papilliform ostiolum. Asci 

 clavate, paraphysate, 8-spored, gradually narrowed toward the base, 

 100-110x12//. Sporidia uniseriate, elliptical, brown, uniseptate, 

 scarcely constricted, 15-20 x 9-11//. 



Differs from D. epidermidis (Fr.), in its larger sporidia and peri- 

 thecia white inside and from D. nitidula Sacc, in its smaller peri- 

 thecia and sporidia. 



Sphaerella pkragmitis E. & E. 



On dead leaves of Phragmites communis, Pine, Indiana. Sept., 

 1893. (Prof. R. A. Harper). 



Perithecia scattered, globose, 100-110// diam., pierced above, 

 buried in the parenchyma of the leaf, but visible by translucence. 

 Asci oblong-cylindrical, short-stipitate, 30-45 x 7-9//, aparaphysate, 

 8-spored. Sporidia biseriate, clavate-piriform, 1- septate and scarcely 

 constricted, sometimes slightly curved, hyaline, 9-12 x 3-4//. Differs 

 from S. lineolata (Rob. and Desm.), which also occurs on Phragmites, 



