Arthrodesmus convergens Ehrenb. ex Ralfs Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Staurodesmus species Staurodesmus convergens Name Homonyms Arthrodesmus convergens Ehrenb. ex Ralfs Arthrodesmus convergens Ehrenberg