Gymnostomum calcareum f. gracile (Breidl. ex G.Roth) Podp. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Gymnostomum species Gymnostomum calcareum Name Homonyms Gymnostomum calcareum var. gracile Breidl. ex G.Roth Gymnostomum calcareum var. gracile Breidl. Gymnostomum calcareum f. gracile (Breidl. ex G.Roth) Podp.