? ursinus Sacc. & Paol. Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Fungi phylum Ascomycota class Leotiomycetes order Chaetomellales family Marthamycetaceae genus Marthamyces species Marthamyces phacidioides Name Homonyms ? ursinus Cope, 1875 ? ursinus Temminck, 1824 ? ursinus Sacc. & Paol.