Staurastrum arachne var. basiornata Capdevielle & Couté Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum arachne Name Homonyms Staurastrum arachne var. basiornata Capdevielle & Couté