Gymnostomum viridulum
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Pottiales
- family: Pottiaceae
- genus: Gymnostomum
- species: Gymnostomum viridulum
Lyme Regis- Newport
England
United Kingdom
East Foothills
California
United States
Koblenz