Docidium asperum Bréb. ex Ralfs, 1848 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Docidium species Docidium asperum Name Synonyms Docidium asperum Bréb. Homonyms Docidium asperum Bréb. ex Ralfs, 1848 Docidium asperum Bréb.