Gymnostomum calcareum f. tenellum (Bruch & Schimp.) 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. tenellum Bruch & Schimp. Gymnostomum calcareum f. tenellum (Bruch & Schimp.) Podp.