Cosmarium vogesiacum f. quadrinodosum (Borge) Laporte, 1931 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium vogesiacum Name Synonyms Cosmarium polonicum var. quadrinodosum Borge, 1906 Homonyms Cosmarium vogesiacum f. quadrinodosum (Borge) Laporte, 1931