Closterium acerosum var. elongatum Bréb. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Closteriaceae genus Closterium species Closterium acerosum Name Synonyms Closterium acerosum f. elongatum (Bréb.) Kossinskaja, 1960 Homonyms Closterium acerosum var. elongatum Bréb. Closterium acerosum subsp. elongatum Brebisson Closterium acerosum f. elongatum (Bréb.) Kossinskaja, 1960