Desmidium aptogonum var. tetragonum (Delponte) West & G.S.West, 1902 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Desmidium species Desmidium baileyi Name Homonyms Desmidium aptogonum var. tetragonum (Delponte) West & G.S.West, 1902