Cosmarium turgidum Bréb. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Actinotaenium species Actinotaenium turgidum Name Homonyms Cosmarium turgidum Bréb. Cosmarium turgidum Bréb. ex Ralfs, 1848