Cosmarium rectangulare var. cambrense (W.B.Turner) W. & G.S.West Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium rectangulare Name Synonyms Cosmarium gotlandicum var. cambrense W.B.Turner, 1893 Cosmarium rectangulare f. minus Manguin, 1936 Homonyms Cosmarium rectangulare var. cambrense (W.B.Turner) W. & G.S.West