Staurastrum cuspidatum var. compactum E.Messikommer, 1957 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus cuspidatus Name Homonyms Staurastrum cuspidatum var. compactum E.Messikommer, 1957