Xanthidium Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Xanthidium Name Homonyms Xanthidium Xanthidium Robertson, 1903 Xanthidium Ehrenberg, 1834 Xanthidium Delpino Xanthidium Ehrenberg ex Ralfs, 1848