130 PROCEEDINGS OF THE ACADEMY OF [1893, 



Perithecia gregarious, ovate, J mm. diam., sparingly pilose around 

 the base, with rather pale, weak hairs, smoother and bare above,, 

 black. Ostiolum papillose-conic, perforated. Asci clavate-cylin- 

 drical, 100x10//, with abundant paraphyses, 8-spored. Sporidia 

 obliquely uniseriate or sub-biseriate, oblong-elliptical, hyaline, gran- 

 ular, 13-16 x 5-6//. The sporidia agree with those of Tr. punctillum 

 Rehm, but that has the perithecia smaller and seated on a distinct 

 brown subiculum. 



Herpotrichia incisa E. & E. 



On dead roots of Acer spicatum, London, Canada. April, 1892. 

 (Dearness, No. 1,810.) 



Perithecia densely gregarious, superficial on the blackened surface 

 of the wood, ovate-conical or subpyramidal, 300-400//, diam., often 

 stellately incised at the apex, black, roughish, with a few weak, pale, 

 rudimentary hairs at first. Asci cylindrical, 150-200 x 12-15//, 

 with abundant, paraphyses, 8-spored. Sporidia overlapping-biseri- 

 ate, fusoid, subhyaline, slightly curved, uniseptate and slightly 

 constricted at the septum, 35-45 x 7-8//. 



Chaetomium glabrescens E. & E. 



On a rotten limb (Salix) ? Rockport, Kansas. Dec, 1892, 

 (Bartholomew, No. 810.) 



Gregarious, surrounded by and nearly sunk in a felt-like, black 

 subiculum composed of rough, branching black, interwoven hairs 

 sending up numerous straight, rough, simple bristles, i-J mm. long. 

 Perithecia ovate-globose about f mm. diam., clothed, especially below, 

 with long, straight, rough, simple bristles which also clothe at first, 

 but more sparingly, the upper part of the perithecium, but these are 

 soon deciduous, leaving the apex bare. Ostiolum conic-papilliform, 

 soon deciduous. The perithecia are very brittle and the upper part 

 soon falls away leaving the cup-shaped base. Sporidia elliptical, or 

 almond-shaped, 8-10 x 6-7// (front view), 7-9 x 5//, when seen edge- 

 wise. Asci not seen. 



Teichospora gregaria E. & E. 



On decorticated Fraxinus, London, Canada. Feb., 1892. (J. 

 Dearness, No. 1,027.) 



Perithecia densely gregarious, ovate, l-\ mm. diam., black, super- 

 ficial, with a conic-papilliform ostiolum. Asci cylindrical, short- 

 stipitate, 8-spored, with abundant paraphyses, p. sp. about 75 x 14//. 

 Sporidia subuniseriate, oblong-elliptical, about 5-septate with a Ion- 



