Polytrichum microstomum R.Br. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Polytrichopsida order Polytrichales family Polytrichaceae genus Pogonatum species Pogonatum microstomum Name Homonyms Polytrichum microstomum R.Br. ex Schwägr. Polytrichum microstomum R.Br.