Riccia atromarginata subsp. atromarginata Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Marchantiophyta class Marchantiopsida order Marchantiales family Ricciaceae genus Riccia species Riccia atromarginata Name Homonyms Riccia atromarginata subsp. atromarginata Riccia atromarginata var. atromarginata