Stereum ochroleucum var. arcticum (Fr.) Cooke & Quél. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Russulales family Stereaceae genus Stereum species Stereum subtomentosum Name Homonyms Stereum ochroleucum subsp. arcticum Fr. Stereum ochroleucum var. arcticum (Fr.) Cooke & Quél.