Polyporus squamosus var. rostkovii (Fr.) Bondarzew Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Polyporales family Polyporaceae genus Polyporus species Polyporus squamosus Name Homonyms Polyporus squamosus f. rostkovii (Fr.) Bondartsev Polyporus squamosus subsp. rostkovii (Fr.) Bondartsev, 1953