Opegrapha lichenoides f. nigrocaesia Chevall., 1826 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Fungi phylum Ascomycota class Arthoniomycetes order Arthoniales family Lecanographaceae genus Alyxoria species Alyxoria lichenoides Name Homonyms Opegrapha lichenoides var. nigrocaesia (Chevall.) Zahlbr., 1932 Opegrapha lichenoides f. nigrocaesia Chevall., 1826