Microthelia betulina Lahm Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Dothideomycetes order Trypetheliales family Trypetheliaceae genus Mycomicrothelia species Mycomicrothelia wallrothii Name Homonyms Microthelia betulina J.Lahm ex Körb. Microthelia betulina Lahm