Marasmius porreus (Pers.) Fr. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Marasmiaceae genus Marasmius species Marasmius porreus Name Synonyms Agaricus porreus Fr. Agaricus porreus Pers. Collybia porrea (Pers. ex Fr.) Sing. Mycena porrea (Pers.) Gray Homonyms Marasmius porreus (Pers.) Fr.