Agaricus castaneus var. rubricosus Fr., 1818 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Cortinariaceae genus Cortinarius species Cortinarius rubricosus Name Homonyms Agaricus castaneus var. rubricosus Fr., 1818