Ptychomitrium platyphyllum (Cardot & Thér.) Cardot Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Hyophila species Hyophila involuta Name Homonyms Ptychomitrium platyphyllum (Cardot & Thér.) Cardot