Cosmarium margaritiferum f. confusum (Cooke) West & G.S.West, 1908 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium margaritiferum Name Synonyms Cosmarium confusum Cooke, 1887 Homonyms Cosmarium margaritiferum f. confusum (Cooke) West & G.S.West, 1908