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-scptate, brown. . ■ Tichoihecium.. 

 Sporidia cylindrical or fusoid, Smultiseptate, 



hyaline. ■ Sphaeruliim. 



GNOMONIBAE. 



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



uniseptate, hyaline. • Gnomonia. 



Asci po'ysporous, sporidia oblong or fusoid, continuous, 



pubhyaline. " ■ - Ditopella. 



PLEOSPOREAE. 



Sporidia ovoid-oblong, uniseptate, brown. Didym,osphaeria. 



Sporidia elliptical, muriform, brown. - Pleospora. 



Sporidia as in Pleospora, but perithecia hairy or 



bristly. - • Pyrenophora- 



Sporidia fusoid, l-many-septate, yellow or brown. Leptosphaeria: 

 Sporidia as in Leptosphaeria, but hyaline. Mctasjphaeria. 



Sporidia as in Leptosphaeria but appcndiculate at 



each end. • Ceriospora. 



Sporidia elongated, appoiidiculate, multiseptatc, 



hyaline. • Saccardoella. 



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

 Sporidia filiform, guttulate or septate, subhyalinc. Ophioholiis. 



MAS3ARIBAE. 



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



septate, mostly brown. Massaria- 



Sporidia constantly uniseptate, otherwise as in 



Massaria. ■ Mussariella. 



