Cosmarium sexnotatum f. bipunctatum Woosz., 1952 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium sexnotatum Name Homonyms Cosmarium sexnotatum var. bipunctatum (Woosz.) Coesel, 1989 Cosmarium sexnotatum f. bipunctatum Woosz., 1952