68 



SPHAERIALES 



(b) Paraphyses lacking 

 X. Perithecia setose; stroma thin, subcutic- 

 ular Montagnina 

 y. Perithecia glabrous; stroma vaisoid or 

 diatrypoid 

 (x) Spores appendaged at one or both 



ends Chorostella 1 :623 



(y) Spores not appendaged 



m. Stroma vaisoid Chorostate 1:606; 12 



n. Stroma diatrypoid Diaporthe 1:631 



Phaeodidymae 



1:701, 9:723, 11:312, 14:551, 16:498, 17:675, 22:169, 303, 390, 24:762, 924, 1074 

 Spores 2-celled, dark, yellow to olive or brown, ovoid to oblong or fusoid 



A. Perithecia separate 



1. Perithecia innate, or finally erumpent 



a. Perithecia beaked 



b. Perithecia not beaked 



(1) Perithecia with clypeus or epistroma 

 (a) Perithecia with clypeus 

 X. Perithecia setose 

 y. Perithecia glabrous 

 (x) Paraphyses present 

 m. Perithecia membranous; spores not 

 mucose 



Rhynchostoma 1:730 



Metacoleroa 



Stegastroma 24:936 



n. Perithecia carbonous; spores mucose Seynesia 2:668 



(y) Paraphyses lacking 

 (b) Perithecia with disk-like epistroma 

 (2) Perithecia without clypeus or epistroma 



(a) Perithecia hairy 



(b) Perithecia glabrous 

 X. Paraphyses present 



(x) Spores with mucous sheath or ap- 

 pendages 

 m. Spores with mucous sheath only 

 n. Spores with appendages, rarely a 



sheath also 

 (y) Spores without mucous sheath or 



appendages 

 m. Asci 8-spored 



(m) Perithecia lichenicole 

 (n) Perithecia not lichenicole 

 r. Asci on a central sterile column 

 s. Asci basal-peripheral 

 n. Asci many-spored; lichenicole 

 y. Paraphyses lacking 

 (x) Perithecia lichenicole 

 (y) Perithecia not lichenicole 

 2. Perithecia superficial from the first 

 a. Perithecia hairy 



(1) Paraphyses present 



(2) Paraphysoids present 



Teratosphaeria 24:538, 635 

 Haplovalsaria 



Pyrenobotrys 24:538, 635 



Phorcys 



Ceriospora 2:184, 14:19 



Endococcus 22:176 



Hypocelis 



Didymosphaeria 1 :701 ; 12 

 Tichothecium 17:676 



Sphaerellothecium 17:676 

 Phaeosphaerella 9:723 



Protoventuria A:113, 9:74 

 Epipolaeum 24:1132 



