Psalliota arvensis var. purpurascens (Cooke) Rea Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Agaricaceae genus Agaricus species Agaricus porphyrizon Name Homonyms Psalliota arvensis var. purpurascens (Cooke) W.G.Sm. Psalliota arvensis var. purpurascens Anon. Psalliota arvensis subsp. purpurascens (Cooke) W.G.Sm., 1910