Monostroma quaternarium (Kuetzing) Desmazier Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Ulvales family Monostromataceae genus Monostroma species Monostroma quaternarium Name Synonyms Monostroma oxycoccum var. quaternarium (Kütz.) G.Hamel, 1921 Ulva quaternaria Kütz., 1856 Homonyms Monostroma quaternarium (Kuetzing) Desmazier