Cetraria islandica subsp. sorediata Schaer. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Parmeliaceae genus Cetraria species Cetraria islandica Name Homonyms Cetraria islandica var. sorediata Schaer. Cetraria islandica subsp. sorediata Schaer.