Agaricus stipatus var. fatuus Fr. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Psathyrellaceae genus Psathyrella species Psathyrella fatua Name Homonyms Agaricus stipatus var. fatuus Fr. Agaricus stipatus subsp. fatuus Fr.