? alba Berk. Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Agaricaceae genus Agaricus species Agaricus campestris Name Homonyms ? alba Gmelin, 1789 ? alba Epshtein & S.Y.Utevsky, 1996 ? alba Sinclair ? alba Zoll. & Moritzi