8 



Sporidia piriform, uniscptatc near the lower (narrow) 



end, hyaline. Apiospora. 



Sporidia ovoid, ellipsoid or suboblong, uniseptate in 



the middle. Didymella. 



B. Paraphyses wanting. 



Sporidia elliptical, continuous, hyaline. Laestadia. 

 Sporidia elliptical, continuous, 2-nucleate, hyaline. Phomatospora. 



Sporidia elliptical, uniseptate, hyaline. Sphaerella. 



Sporidia continuous, brown. Mulerella. 

 Sporidia inequilateral, large, uniseptate, hyaline, 



becoming darker. Lizonia. 



Sporidia 1-3-septate, hyaline. Pharcidia. 



Sporidia 1-3-septate, brown. Tichothecium. 



Sporidia cylindrical or fusoid, 3-multiseptate, 



hyaline. Sphaerulina. 



GNOMONIEAE- 



Asci 8-spored, sporidia elliptical, etc., continuous or 



uniseptate, hyaline. Gnomonia. 



Asci polysporous, sporidia oblong or fusoid, continuous, 



subhyaline. Ditopello. 



PLEOSPOREAE. 



Sporidia ovoid-oblong, uniseptate, brown. Didymosphaeria. 

 Sporidia elliptical, muriform, brown. Pleospora. 



Sporidia as in Pleospora, but perithecia hairy or 



bristly. Pyrenophora* 



Sporidia fusoid, 1-many-septate, yellow or brown. Leptosphaeria. 

 Sporidia as in Leptosphaeria, but hyaline. Metasphaeria. 



Sporidia as in Leptospliaeria but appendiculate at 



each end. Ceriospora. 



Sporidia elongated, appendiculate, multiseptate, 



hyaline. Saccardoella. 



Sporidia large, muriform, only one or two in an ascus. Julella- 

 Sporidia filiform, guttulate or septate, subhyaline. Ophiobolas- 



MASSARIEAE. 



Sporidia large, with a hyaline envelope, 1 -several- 

 septate, mostly brown. Massaria- 



Sporidia constantly uniseptate, otherwise as in 



Massaria. Massariclla. 



