Riccia fluitans f. canaliculata (Hoffm.) Nees Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Marchantiophyta class Marchantiopsida order Marchantiales family Ricciaceae genus Riccia species Riccia canaliculata Name Homonyms Riccia fluitans var. canaliculata (Hoffm.) Roth Riccia fluitans f. canaliculata (Hoffm.) Nees Riccia fluitans subsp. canaliculata (Hoffm.) Ångstr.