Staurastrum ornatum var. asperum (Perty) Schmidle Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum ornatum Name Synonyms Phycastrum asperum Perty, 1849 Homonyms Staurastrum ornatum var. asperum (Perty) Schmidle Staurastrum ornatum subsp. asperum Schmidle