Cosmoastrum ellipticum (West) Palamar-Mordvintseva, 1984 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum ellipticum Name Homonyms Cosmoastrum ellipticum (West) Palamar-Mordvintseva, 1984