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The Cyphellaceae are a family of fungi in the order Agaricales. The family contains 16 genera and, in 2008, 31 species. Its sister group is the Porotheleaceae, both of which are in the 'marasmioid clade'.
Asterocyphella Campanophyllum Catilla Cheimonophyllum Chondrostereum Cunninghammyces Cyphella Gloeocorticium Gloeostereum Granulobasidium Hyphoradulum Incrustocalyptella Phaeoporotheleum Seticyphella Sphaerobasidioscypha Thujacorticium