Bryum argenteum f. mucronatum (Hamm.) Podp. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Bryophyta class Bryopsida order Bryales family Bryaceae genus Bryum species Bryum argenteum Name Homonyms Bryum argenteum f. mucronatum (Hamm.) Podp. Bryum argenteum var. mucronatum Hamm.