Cosmarium decedens var. sinuosum (P.Lundell) Racib., 1889 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Cosmarium species Cosmarium decedens Name Synonyms Cosmarium sinuosum P.Lundell, 1871 Dysphinctium quadratum var. sinuosum (P.Lundell) J.Comère Dysphinctium sinuosum (P.Lundell) Hansg. Homonyms Cosmarium decedens var. sinuosum (P.Lundell) Racib., 1889