Cosmarium botrytis var. gemmiferum (Bréb.) Nordst. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium botrytis Name Synonyms Cosmarium gemmiferum Brebisson, 1856 Homonyms Cosmarium botrytis var. gemmiferum (Bréb.) Nordst. Cosmarium botrytis var. gemmiferum Meneghini