Cosmarium cymatopleurum f. cymatopleurum Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Cosmarium species Cosmarium cymatopleurum Name Homonyms Cosmarium cymatopleurum var. cymatopleurum Cosmarium cymatopleurum subsp. cymatopleurum