Fomes annosus (Fr.) P.Karst., 1879 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Russulales family Bondarzewiaceae genus Heterobasidion species Heterobasidion annosum Name Homonyms Fomes annosus (Fr.) Cooke Fomes annosus (Fr.) P.Karst., 1879