72 



SPHAERIALES 



n. Spores with appendages 



(m) Spores with stout conical appen- 

 dage at base 

 (n) Spores with a long seta at each 

 end 

 (y) Spores without sheath or appendages 

 m. Paraphyses present 



(m) Perithecia membranous 

 r. Perithecia lichenicole 

 s. Perithecia not lichenicole 

 (n) Perithecia carbonous 

 n. Paraphysoids present 

 o. Paraphyses and paraphysoids lacking 

 (m) Perithecia lichenicole 

 (n) Perithecia not lichenicole 

 2. Perithecia superficial from the first 



a. Perithecia hairy or setose 



(1) Paraphyses present 



(2) Paraphyses lacking 



b. Perithecia glabrous 



(1) Spores biconic, a 2-3-septate hyaline ap- 



pendage at each end 



(2) Spores not biconic and appendaged 



(a) Perithecia fimicole; spores usually with 



mucous sheath 



(b) Perithecia not fimicole; spores without 



sheath 

 X. Paraphyses present 

 y. Paraphyses lacking 



B. Perithecia cespitose 



1. Perithecia fungicole 



2. Perithecia lignicole 



C. Perithecia with a subicle or stroma 



1. Perithecia with a subicle or thin superficial 



stroma 



a. Perithecia parasitic on insects 



b. Perithecia lignicole 



(1) Perithecia on a subicle, submembranous, 



typically collapsing 



(2) Perithecia on a thin superficial stroma, 



not collapsing; spore-cells finally sepa- 

 rating 



2. Perithecia in a stroma, the latter typically 



immersed 



a. Stroma lichenicole 



b. Stroma fimicole 



c. Stroma phytogenous 

 (1) Paraphyses present 



(a) Asci with a single large spore; perithe- 



cia valsoid 



(b) Asci 4-8 spored 



X. Spores appendaged both ways 

 y. Spores not appendaged 

 (x) Stroma valsoid 



Rebentischia 2:12 

 Keissleria 2:184, 14:19 



Xenosphaeria 17:730 

 Leptosphaeria 2:13, 88; 13 

 Trematosphaeria 2:115; 13 

 Scleroplella 24:1131 



Phaeospora 16:519 

 Phaeosphaeria 22:214 



Lasiosphaeris 2:194 

 Herpotrichiella 24:973 



Caryospora 2:122 



Sporormia 2:123; 13 



Melanomma 2:98; 13 

 Gillotia 22:253 



Philonectria 24:1016 

 Gibberidea 2:132 



Coccidophthora 24:1018 



Chaetosphaeria 2:92; 13 



Ohleria 2:96 



Trematosphaeris 17:735 

 Sporormiella 



Titania 9:823 



Broomella 2:557; 16 



