9 



Sporidia more or less distinctly niuriform, brown. Pleomassaria. 

 Sporidia as ip Massariella, but perithecia 



circinate. - • Massariovaha. 



■ CLYPEOSPHAERIEAE. 



Sporidia oviate-oblong, continuous, subhyaline. Trabvtin. 



Sporidia ovoid or oblong continuous, brown. Anthostovielln. . 



Sporidia oblong cylindrical, 1-3-septate, brown. Clypeosphaevia^ 



Sporidia fusoid, 1-3-septate, hyaline. Hypospila. 



Sporidia filiform, hyaline. - lAnospora. 



Sporidia short fusoid, muriform (foliicolous.) Isothea. 



Sporidia subelliptical, muriform, hyaline or brown , 



(lignicolous ) - - Thyridiuvi. 



VALSEAE. 



A. Sporidia aliantoid, continnoiis, liyaline or snbhyaline, asci mostly 



8-spored. 



* Stroma convex or conical^ sunk in the matrix with only (he 



apex erumpent. 

 Ostiola smooth, sporidia hyaline. ■ Valm. 



©stiola sulcate, sporidia yellowish. - Eutypella. 



Perithecia circinate, asci polysporous. Valsella. 



** Stroma effused. 

 Perithecia scattered in an effused or subpulvinate 



stroma, sporidia hyaline. - Eutypa, 



Perithecia scattered or subcircinate in a (mostly) 



- cortical stroma, sporidia yellowish. CryptovaUa. 



*** Stroma wanting. 

 Perithecia circinate on the surface of the inner 



bark. - - Calosphaeria. 



Perithecia as in Calosphaeria, asci polysporous. Coronophora. 

 Perithecia and sporidia as in Eutypa, but stroma 



none. Cryptosphaeria. 



B. Sporidia 1-or more-septate. 



* Stroma convex, conical or effused. 



Sporidia uniseptate, hyaline. - Diaporthe. 



** Stroma wanting. 



Perithecia buried, subcircinate or scattered, sporidia 



1-3-septatc, brown. - Endoxyla. 



MELA^fCONIDEAE. 



Sporidia uniseptate, hyaline or colored. Melanconis. 



