Desmidium aptogonum Brébisson ex Ralfs Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Desmidium species Desmidium aptogonum Name Homonyms Desmidium aptogonum Brébisson ex Ralfs Desmidium aptogonum Bréb. ex Kütz. Desmidium aptogonum Bréb.