3 o SPHAERIACEAE 



(n) Perithecia innate-prominent, necks lacking 



Hypoxylum i: 352 

 (2) Conidia arising beneath the upper layer of the disk-like or cupulate 

 stroma 



(a) Perithecia flask-shaped Nummularia 1:395 



(b) Perithecia long-cylindric Solenoplea 17:619 



Hyalodidymae 



1 : 475. 9: 6ll, 11: 295, 14: 525, 16: 468, 17: 635 



Spores i-septate (2-celled), hyaline or subhyaline, ovoid, oblong or fusoid 



T. Perithecia separate 



1. Perithecia covered or nearly so 



a. Perithecia beaked, submembranous 



(1) Asci 8-spored Gnomonia 1:561 



(2) Asci many-spored Rehmiella 9: 676 



b. Perithecia not beaked 



(1) Asci 8-sporcd 



(a) Perithecia in a phyllogenous pseudostroma 



Hypospilina 2: 190 



(b) Perithecia not in a phyllogenous pseudostroma 

 x. Paraphyses lacking Sphaerella 1: 476 



(inch Lizoniella 17:661) 

 y. Paraphyses present 



( x ) Spores surrounded with mucus 



Massarinula 14: 536 

 (y) Spores not surrounded with mucus 

 m. Spores septate near the base 



Apiospora 1 : 539 



(inch Stigmatea 1:541) 

 n. Spores septate near the middle 



(m) Perithecia smooth Didymella 1:545 



(inch Stigmatea 1:545) 

 (n) Perithecia long-hairy Arcangelia 9: 696 



(2) Asci 16-24-spored 



(a) Asci 16-spored Mycosphaerella 9: 659 



(b) Asci 24-spored Hariotia 9: 672 



2. Perithecia superficial or nearly so 



a. Perithecia beaked 



(1) Spores expelled in a mucous mass Spumatoria 16: 1134 



(2) Spores not expelled in a mucous mass 



Lentomita 1: 584 



b. Perithecia not beaked 

 (1) Perithecia smooth 



(a) Asci 8-spored 

 x. Paraphyses lacking 



(x) Perithecia borne in lichen thalli 



Pharcidia 9: 676, 17: 635 

 (inch Epicymatia 1: 570) 

 ( y ) Perithecia not in lichen thalli 



Bertia 1: 581 



