Trichostomum fragile (Hook.f. & Wils.) C.Muell. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Tortella species Tortella fragilis Name Homonyms Trichostomum fragile (Drumm.) Müll.Hal. Trichostomum fragile (Hook.f. & Wils.) C.Muell.