Rhizocarpon tetrasporum Runemark, 1956 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Rhizocarpales family Rhizocarpaceae genus Rhizocarpon species Rhizocarpon tetrasporum Name Homonyms Rhizocarpon tetrasporum Runemark, 1956