Calicium xylonellum var. trabinellum Ach., 1803 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Caliciales family Caliciaceae genus Calicium species Calicium trabinellum Name Homonyms Calicium xylonellum var. trabinellum Ach., 1803 Calicium xylonellum subsp. trabinellum Ach.