Staurastrum unicorne var. longicolle Grönblad & A.M.Scott, 1958 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus unicornis Name Homonyms Staurastrum unicorne var. longicolle Grönblad & A.M.Scott, 1958