Usnea glaucescens var. glauca (Motyka) Clauzade & Cl.Roux, 1985 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Fungi phylum Ascomycota class Lecanoromycetes order Lecanorales family Parmeliaceae genus Usnea species Usnea glauca Name Homonyms Usnea glaucescens var. glauca (Motyka) Clauzade & Cl.Roux, 1985