Phacotium gen. Acharius Trevisan, 1821 Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Caliciales family Caliciaceae genus Calicium Name Homonyms Isidium gen. Acharius Acharius, 1803 Rinodina gen. Acharius S.F.Gray, 1821 Opisteria gen. Acharius Vainio, 1909 Crocynia gen. Acharius A.Massalongo, 1860 Pycnothelia gen. Acharius J.-M.L.Dufour, 1821 Phacotium gen. Acharius Trevisan, 1821