Psalliota hortensis f. avellanea J.E.Lange, 1939 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Agaricaceae genus Agaricus species Agaricus bisporus Name Homonyms Psalliota hortensis f. avellanea J.E.Lange, 1939 Psalliota hortensis subsp. avellanea J.E.Lange, 1939