Bryum cuspidatum Wilson Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Bryales family Bryaceae genus Ptychostomum species Ptychostomum creberrimum Name Homonyms Bryum cuspidatum (Bruch & Schimp.) Schimp. Bryum cuspidatum (Hedw.) Crome Bryum cuspidatum Wilson