Cosmarium nasutum f. granulatum Nordst., 1872 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium nasutum Name Homonyms Cosmarium nasutum var. granulatum Nordst. Cosmarium nasutum f. granulatum Nordst., 1872