Staurastrum armigerum var. furcigerum (Bréb.) Teiling, 1957 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum furcigerum Name Homonyms Staurastrum armigerum var. furcigerum (Bréb.) Teiling, 1957 Staurastrum armigerum var. furcigerum (Brebisson) Nordstedt Staurastrum armigerum f. furcigerum (Ralfs) Teiling, 1957