Euastrum undulatum (Corda ex Ralfs) F.Gay, 1884 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium undulatum Name Homonyms Euastrum undulatum (Corda ex Ralfs) F.Gay, 1884