Spirogyra fluviatilis Hisle Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Zygnemataceae genus Spirogyra species Spirogyra fluviatilis Name Homonyms Spirogyra fluviatilis Hilse Spirogyra fluviatilis Hisle Spirogyra fluviatilis Hulse, 1863