Arthrodesmus crassus (W. & G.S.West) M.Florin Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus controversus Name Homonyms Arthrodesmus crassus West & G.S.West, 1903 Arthrodesmus crassus (W. & G.S.West) M.Florin