Gymnostomum rupestre f. compactum (Bruch & Schimp.) Mönk. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Bryophyta class Bryopsida order Pottiales family Pottiaceae genus Gymnostomum species Gymnostomum aeruginosum Name Homonyms Gymnostomum rupestre var. compactum Bruch & Schimp. Gymnostomum rupestre f. compactum (Bruch & Schimp.) Mönk.