Riccia armatissima (Levier ex Müll.Frib.) Trab. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Marchantiophyta class Marchantiopsida order Marchantiales family Ricciaceae genus Riccia species Riccia gougetiana Name Homonyms Riccia armatissima (Levier ex Müll.Frib.) Trab.