Cosmarium phaseolus var. minus (Boldt) Willi Krieg. & Gerloff, 1962 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium phaseolus Name Homonyms Cosmarium phaseolus f. minus Boldt Cosmarium phaseolus var. minus (Boldt) Willi Krieg. & Gerloff, 1962 Cosmarium phaseolus subsp. minus Boldt