Agaricus flaccidus var. albus Fr. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Polyporales family Polyporaceae genus Lenzites species Lenzites betulinus Name Homonyms Agaricus flaccidus var. albus Fr. Agaricus flaccidus var. albus Fr. ex Sacc.