Cetraria islandica var. sorediata (Schaer.) Ach. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Parmeliaceae genus Parmotrema species Parmotrema perlatum Name Homonyms Cetraria islandica var. sorediata Schaer. Cetraria islandica subsp. sorediata Schaer.