5:J5 



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

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

 broad, subcvlindrical to fusoid, sessile, 50-75 p long. Sporidia cylin- 

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

 usually multinucleate, 50-67 x 4-5 p. 



On bark of Betula popvlifolia, New Albany, N. Y. (Peck). 



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

 and the tomentose 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 EH. 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 bark, 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, 65-80x8-10 a. 

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

 30-40x31-4//. 



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



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

 to he united in a brown disk. 



*## Sporidia 2- or more-septate, or pseudo septate (Calospora). 

 Cr. trichispora, (C. & P.) 



Valsa trichispora, C. & P. Cke. Valsei U. S. p. 119, Pk. 29th Rep. p. 58. 



Cryptospora trichispora, Sacc. Syll. 4122. 



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



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

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

 exserted, quadrisulcate. Asci clavate. Sporidia filiform, hyaline 

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



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



It looks like a miniature Diaporthe leiphc&mia. 



Cr. aciileans, (Schw.) 



Sphceria aculeans, Schw. Syn. N. Am. 1395. 

 Calospora aculeans, Sacc. Syll. 3703. 

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

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

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

 Valsa stilbostoma, Fr. in Raw Car. Ill, 68. 

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



