Cosmarium bioculatum Chen Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Cosmarium species Cosmarium bioculatum Name Homonyms Cosmarium bioculatum Bréb. ex Ralfs Cosmarium bioculatum Brebisson Cosmarium bioculatum Chen