Stereocaulon tomentosum var. tomentosum Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Stereocaulaceae genus Stereocaulon species Stereocaulon tomentosum Name Homonyms Stereocaulon tomentosum f. tomentosum Stereocaulon tomentosum var. tomentosum