Ptychostomum caespiticium (Brid.) J.R.Spence & H.P.Ramsay Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Bryales family Bryaceae genus Ptychostomum species Ptychostomum compactum Name Homonyms Ptychostomum caespiticium Brid. Ptychostomum caespiticium (Brid.) J.R.Spence & H.P.Ramsay