XylariomycetidaeEriksson OE, Winka W (1997) Supraordinal taxa of Ascomycota. Myconet. 1:1-16. is a subclass of sac fungi.
Orders As accepted by Wijayawardene et al. 2020; Amphisphaeriales (15 families) Amphisphaeriaceae (4) Apiosporaceae (4) Beltraniaceae (9) Castanediellaceae (1) Clypeophysalosporaceae (4) Hyponectriaceae (17) Iodosphaeriaceae (1) Melogrammataceae (1) Oxydothidaceae (1) Phlogicylindriaceae (3) Pseudomassariaceae (4) Pseudosporidesmiaceae (1) Pseudotruncatellaceae (1) Sporocadaceae (35) Vialaeaceae (1) Delonicicolales Delonicicolaceae (2 genera) Leptosilliaceae (1) Xylariales (ca 20 families) Anungitiomycetaceae (3) Barrmaeliaceae (2) Cainiaceae (10) Clypeosphaeriaceae (7) Coniocessiaceae (2) Diatrypaceae (22) Fasciatisporaceae (1) Graphostromataceae (5) Hansfordiaceae (1) Hypoxylaceae (18) Induratiaceae (2) Lopadostomataceae (4) Microdochiaceae (3) Polystigmataceae (1) Nothodactylariaceae (1) Requienellaceae (4) Vamsapriyaceae (1) Xyladictyochaetaceae (2) Xylariaceae (38) Zygosporiaceae (1)
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