Didymodon crassicostatus (E.B.Bartram) R.H.Zander Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Didymodon species Didymodon laevigatus Name Homonyms Didymodon crassicostatus (E.B.Bartram) R.H.Zander