Collybia butyracea var. asema (Fr.) Singer Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Omphalotaceae genus Rhodocollybia species Rhodocollybia asema Name Homonyms Collybia butyracea f. asema (Fr.) Singer Collybia butyracea var. asema (Fr.) Cetto Collybia butyracea var. asema (Fr.) Quél. Collybia butyracea subsp. asema (Fr.) Quél. Collybia butyracea var. asema (Fr.) Singer