Cosmarium bioculatum f. depressa Schaarschm. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium bioculatum Name Homonyms Cosmarium bioculatum f. depressa Schaarschm. Cosmarium bioculatum var. depressa Schaarschm.