Staurastrum bieneanum var. angulatum Nygaard, 1950 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus spetsbergensis Name Homonyms Staurastrum bieneanum var. angulatum Nygaard, 1950