Xanthidium armatum (Brebisson) Rabh. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Xanthidium species Xanthidium armatum Name Homonyms Xanthidium armatum Rabenh. ex Ralfs Xanthidium armatum (Brebisson) Rabh. Xanthidium armatum Rabenh.