64 



SPHAERIALES 



(b) Perithecia with a 5-6-radiate episiroma 

 (2) Perithecia without clypeus or epistroma 



(a) Perithecia beaked 



(b) Perithecia not beaked 



X. Spores with a mucous sheath 

 y. Spores without mucous sheath 

 b. Perithecia finally erumpent 



(1) Asci 8-spored; epiderm rupturing stel- 



lately; not lichenicole 



(2) Asci many-spored 



(a) Perithecia lichenicole 



(b) Perithecia not lichenicole 

 2. Perithecia superficial from the first 



a. Perithecia beaked 



(1) Spores lunulate; fimicole 



(2) Spores globoid to elliptic; not fimicole 



(a) Perithecia setose 



(b) Perithecia glabrous 

 X. Asci 1-spored 



y. Asci 8-spored 



b. Perithecia not beaked 



(1) Perithecia membranous 



(a) Spores with mucous sheath or tail; 



usually fimicole 

 X. Spores with mucous sheath 

 y. Spores caudate at one or both ends 



(x) Asci 4-8-spored 



(y) Asci many-spored 



(b) Spores without mucous sheath or tail; 



perithecia typically with long branched 



or spiral hairs 

 X. Spores globoid to elliptic 

 y. Spores triangular 



(2) Perithecia typically carbonous; spores not 



caudate 



(a) Perithecia setose 



(b) Perithecia glabrous 

 X. Perithecia lichenicole 



y. Perithecia not lichenicole 



(3) Perithecia coriaceous to corneous; spores 



caudate at one or both ends 

 B. Perithecia with subicle or stroma 



1. Perithecia with a subicle 



a. Perithecia collapsing into cups; paraphyses 



absent 



b. Perithecia not collapsing; paraphyses present 



(1) Perithecia hairy; fungicole 



(2) Perithecia glabrous; not fungicole 



2. Perithecia with a stroma 

 a. Stroma immersed 



(1) Stroma in wood or bark, valsoid or dia- 



trypoid 



(2) Stroma in leaves, with a hypostroma 



Erikssonia 14:710, 24:848 



Acanthorhynchus 22:300 



Leptomassaria 24:826 

 Paranthostomella 22:101 



Astrocystis 1:293 



Muellerella A:49, 9:483 

 Mesniera 16:440 



Micrascus A:37, 9:483 



Chaetoceris 24:1070 



Cryptascus 22:298 

 Ceratostoma 1:215; 10 



Sordaria 1:230; 10 



Podospora 

 Philocopra 1:249 



Chaetomium 1:220; 10 

 Bommerella A:38, 9:486 



Coniochaeta 1:269 



Adelococcus 

 Rosellinia 1:252; 10 



Bombardia 1:277; 10 



Tympanopsis 11:283 



Helminthosphaeria 1 :230 

 Rosellinia 1:252; 10 



Anthostoma 1:293; 10 

 Pseudotthiella 



