EUROTIACEAE 



51 



branched hyphae, these rarely short and approaching the umbelloid grouping, 

 several to many, globose to clavate, few-, rarely many-spored; paraphyses regu- 

 larly lacking; spores various. 



Hyalosporae 



Spores 1-celled, globoid to oblong, hyaline or subhyaline. 



A. Perithecia bright-colored, yellow to red, rarely 



white 



1. Perithecia setose or hairy 



a. Perithecia with long stiff setae; spores lenti- 



form 



b. Perithecia with soft hairs; spores spiny, glo- 



boid, reddish 



2. Perithecia glabrous 



a. Spores verrucose 



b. Spores smooth or ridged, but not verrucose 



(1) Perithecia circumscissile at base 



(2) Perithecia breaking up generally 



B. Perithecia brown, deep-purple or finally black 



1. Spores with an irregular wing-like appendage 



2. Spores not appendaged 



a. Perithecia brown, finally black; paraphyses 



present; spores globoid 



b. Perithecia deep-purple, the plates with sutures; 



paraphyses lacking; spores bean-shaped 



Chaetotheca 11:254 



Aphanascus 10:35 



Anixiopsis 14:464 



Dichlaena 24:228 

 Eurotium 1:25; 8 



Samarospora 11:254 



Mycogala 1:34; 8 

 Fragosphaeria 



Phaeosporae 



Spores 1-ceiled, globoid to oblong, dark, typically olivaceous to brown. 



A. Perithecia with ostiolate beak, carbonous, usually 



hairy; spores lunulate; fimicole 



B. Perithecia not beaked or ostiolate 



1. Perithecia with appendages or hairs 



a. Spores globose, conglobate 



(1) Appendages closely spiral, convolute 



(2) Appendages flexuous-tortuose 



b. Spores ovoid to elliptic 



(1) Appendages circinate at apex 



(2) Appendages not circinate, mere hairs or 



bristles 



2. Perithecia glabrous 



a. Spores globose, with a median wing-like ring 



cut into teeth 



b. Spores ovoid to oblong 



(1) Spores conglobate at first 



(a) Paraphyses present; spores elliptic, ver- 



rucose 



(b) Paraphyses lacking; spores cuboid, 



smooth 



(2) Spores not conglobate 



(a) Saprophytic on grass culms 



(b) Parasitic on roots of herbs, chiefly 



legumes 



Micrascus A:37, 9:495, L 297; 6 



Pleurascus 16:1123 

 Arachnomyces 17:532 



Magnusia 1 :38 ; 6 



Cephalotheca 1:36; 6 



Emericella L 297 



Guillermondia 

 Phaeidium 16:405 

 Carothecis 9:377 

 Thielavia 1:39; 8 



