Calocylindrus cucumis (Corda ex Ralfs) Istvànffi, 1888 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium cucumis Name Homonyms Calocylindrus cucumis (Corda ex Ralfs) Istvànffi, 1888