535 



brownish, erumpent through a narrow, transverse chink which is acute 

 at each end, and pierced by the smooth, black ostiola. Asci oblong, 

 broad, snbcylindrical to fusoid. se-sile, 50-75 p. long. Sporidia cylin- 

 drical, crowded, more or less curved, colorless, obtuse at the ends, 

 usually multinucleate, 50-67 x -15 //. 



On bark of B etui a populifolia, Xew Albany, X. Y. (Peck). 



Allied to Cr. cuictula, but differs in the character of the disk 

 and the tonientose perithecia. 



Cr. albofiisca, (C. & E.) 



Valsa albofusca, C. & E. Grev. V, p. 31. 

 Cryptosporella albofusca, Sacc. Syll. 1815. 

 Valsa (Cryptosporella} albofusca, Cke. Syn. 1934. 

 Exsicc. Ell. N. A. F. 92. 



Pustules small, covered by the slightly raised epidermis, scat- 

 tered. Perithecia few, 4-8 in a stroma formed of the scarcely altered 

 substance of the inner hark, pale, necks short, the small, black, erum- 

 pent ostiola at first covered by a mealy, white pseudo-disk which soon 

 disappears. Asci oblong-clavate, sessile, aparaphysate, 65-80 x 8-10 p. 

 Sporidia lying parallel in the asci, cylindrical or clavate-cylindrical. 

 30-40 x 3 1-4 u. 



On dead limbs of Quercus obtusiloba, Xewfield, N. J. 



When the mealy white layer has disappeared, the ostiola arc seen 

 to be united in a brown disk. 



Sporidia 1- or //tore-septate, or pwH do septate (Calospora). 

 Cr. trichispora, (C. & P.) 



Valsa trichispora, C. & P. Cke. Valsei U. S. p. 119, Pk. 2gth Rep. p. 58. 



Cryplospora trichispora, Sacc. Syll. 4122. 



Valsa (Cryptospora) trichispora, Cke. Syn. 1949. 



Pustules small. Stroma cortical, pale ochraceous as well as the 

 nimpent disk. Perithecia few, dark brown when mature. Ostiola 

 .xserted, quadrisulcate. Asci clavate. Sporidia filiform, hyaline, 

 5-7 -septate, 55 x 2J //. 



On dead twigs of oak, Greenbush, X. Y. (Peck). 



It looks like a miniature Diaporthe leiphcemia, 



Cr. aciileaus, (Schw.) 



Sphczria aculeans, Schw. Syn. X. Am. 1395. 

 Calospora aculeans, Sacc. Syll. 3703. 

 Valsa (Calospora) aculeans, Cke. Syn. 2045. 

 I'alsa Rhois, Cke. F. Brit. Ser. I, No. 245, id. Ser. II, No. 258. 

 Valsa albovelata, B. & C. Grev. IV, p. 102, 

 I'alsa stilbostoma, Fr. in Rav. Car. Ill, 68. 

 Exsicc. Cke. 1. c. Rav. F. Car. Ill, 68. Ell. & Evrht. N. A. F. 2d Ser. 1569, 



