Cosmarium cyclicum var. nordstedtianum (Reinsch) West & G.S.West, 1905 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium cyclicum Name Synonyms Cosmarium cyclicum var. nordstedianum (Reinsch) W. & G.S.West Cosmarium nordstedtianum Reinsch, 1875 Cosmarium nordstedtianum West Homonyms Cosmarium cyclicum var. nordstedtianum (Reinsch) West & G.S.West, 1905