Cosmarium laeve var. westii Willi Krieg. & Gerloff Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium laeve Name Synonyms Cosmarium laeve var. septentrionale G.S.West, 1899 Cosmarium laeve var. septentrionale Wille Homonyms Cosmarium laeve var. westii Willi Krieg. & Gerloff