Rhizocarpon umbilicatum var. umbilicatum Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Rhizocarpales family Rhizocarpaceae genus Rhizocarpon species Rhizocarpon umbilicatum Name Homonyms Rhizocarpon umbilicatum var. umbilicatum Rhizocarpon umbilicatum f. umbilicatum