Gymnostomum calcareum var. australe Broth. & Geh. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Gymnostomum species Gymnostomum calcareum Name Homonyms Gymnostomum calcareum var. australe Broth. & Geh.