Cosmarium kirchneri Børgesen, 1889 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium kirchneri Name Synonyms Cosmarium margaritiferum f. kirchneri (Børgesen) West & G.S.West, 1908 Cosmarium margaritiferum var. kirchneri (Børgesen) Föster Homonyms Cosmarium kirchneri Børgesen, 1889