Arthrodesmus ralfsii var. brebissonii (Racib.) G.M.Smith Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus glaber Name Homonyms Arthrodesmus ralfsii var. brebissonii (Racib.) G.M.Smith