Staurastrum tumidum Brebisson Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum tumidum Name Homonyms Staurastrum tumidum Bréb. ex Ralfs, 1848 Staurastrum tumidum Brebisson