Tricholoma arcuatum var. cognatum (Fr.) Sacc. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Tricholomataceae genus Melanoleuca species Melanoleuca cognata Name Homonyms Tricholoma arcuatum var. cognatum (Fr.) Sacc. Tricholoma arcuatum subsp. cognatum (Fr.) Sacc. Tricholoma arcuatum subsp. cognatum (Fr.) P.Karst.