Closterium cornu var. javanicum Gutw., 1902 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Closteriaceae genus Closterium species Closterium cornu Name Homonyms Closterium cornu var. javanicum Gutw., 1902