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