Taxithelium concavum (Hook.) Spruce Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Hypnales family Pylaisiadelphaceae genus Taxithelium species Taxithelium concavum Name Homonyms Taxithelium concavum (Hook.) Spruce Taxithelium concavum (Hook.) Spruce ex J.Florsch.