Cosmarium varsoviense var. tirolense Willi Krieg. & Gerloff, 1965 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium varsoviense Name Homonyms Cosmarium varsoviense var. tirolense Willi Krieg. & Gerloff, 1965