Cosmarium globosum W. & G.S.West Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Cosmarium species Cosmarium globosum Name Homonyms Cosmarium globosum Bulnh. Cosmarium globosum W. & G.S.West