142 



AGYRIALES 



Key to Families 



A. Paraphyses and hypothecium present, or one or 



the other occasionally lacking 



B, Both paraphyses and hypothecium lacking 



Agyriaceae p. 

 Exascaceae p. 



Discomycella 24:1144 

 Solanella 22:627 



Family 58, AGYRIACEAE 



22:586, 24:1142 

 Apothecia without an exciple or the latter incomplete, convex to discoid, gelat- 

 inous, fleshy or rarely more or less membranous, bright-colored, rarely black, 

 typically superficial; hypothecium regularly present and parenchymic; asci ovoid to 

 clavate, mostly 8-spored, paraphyses regularly present, occasionally forming an 

 epithecium; spores various. 



Hyalosporae 



Spores 1-cellcd, hyaline, globose to fusoid 



A. Exciple present but incomplete 



1. Exciple prosenchymic, lateral, lacking below, 



paraphyses branched, forming an epithecium 



2. Exciple represented only by apophyses with in- 



flated cells and long points; paraphyses simple 



B. Exciple entirely lacking 



1. Asci typically 8-spored 



a. Apothecia black, membranous or firm-waxy, 



usually with an epithecium 



(1) Apothecium membranous, superficial, not 



lichenicole 



(2) Apothecia firm-waxy, lichenicole, typically 



erumpent 



b. Apothecia bright-colored, gelatinous to fleshy 



(1) Apothecia gelatinous 



(a) Hymenium covered with mucus; algicole Gloeopeziza 10:41, 14:804 



(b) Hymenium without mucus; not algicole 

 X. Apothecia with gyrose or folded hy- 

 menium 



y. Apothecia with smooth hymenium 



(2) Apothecia fleshy 



(a) Apothecia on a cottony subicle; hypo- 



thecium thick 

 X. Spores globose; apothecia white-hairy 

 y. Spores ellipsoid; apothecia not hairy 



(b) Apothecia without subicle; hypothecium 



thin 



2, Asci many-spored 



a. Asci 16-spored; spores globose; apothecia 



without a disk-like hypothecium 



b. Asci many-spored; spores fusoid; apothecia 



with a disk-like hypothecium 



Phillipsiella 22:584 

 Nesolechia 10:53 



Haematomyces 8:633 

 Agyrium 8:634, R 450; 26 



Pyronemella 8:194, R 1038 

 Pyronema 8:107, R 962; 34 



Ascocalathium 14:30 



Agyrina 8:636 

 Zukalina 14:32; 37 



Phaeosporae 



Spores 1-celled, dark, globose to fusoid 



A. Apothecia effuse, phytogenous; hypothecium lack- 



ing Medeolaria 



B. Apothecia minute, fimicole; hypothecium paren- 



chymic Ascodesmis 8:824 



