Psalliota placomyces (Peck) P.Henn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Agaricaceae genus Agaricus species Agaricus placomyces Name Homonyms Psalliota placomyces (Peck) Lloyd Psalliota placomyces (Peck) P.Henn.