Agaricus caespitosus Bolton Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Hygrophoraceae genus Lichenomphalia species Lichenomphalia umbellifera Name Homonyms Agaricus caespitosus (Berk.) Berk. & M.A.Curtis Agaricus caespitosus Bolton