Stereum frustulatum (Pers.) A.L.Welden, 1971 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Russulales family Stereaceae genus Xylobolus species Xylobolus frustulatus Name Homonyms Stereum frustulatum (Pers.) Fr. Stereum frustulatum (Pers.) A.L.Welden, 1971