Gymnostomum calcareum var. longifolium Meyl. 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. longifolium Dixon Gymnostomum calcareum var. longifolium Meyl. Gymnostomum calcareum f. longifolium Podp.