Staurastrum crenulatum var. continentale Messikommer, 1927 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum crenulatum Name Homonyms Staurastrum crenulatum var. continentale Messikommer, 1927