Gymnostomum truncatulum Dicks. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Tortula species Tortula truncata Name Homonyms Gymnostomum truncatulum (With.) Hedw. ex Schumach. Gymnostomum truncatulum (With.) Hedw. Gymnostomum truncatulum Dicks.