Rhizocarpon pusillum
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Rhizocarpaceae
- genus: Rhizocarpon
- species: Rhizocarpon pusillum
Dellach im Drautal- Großkirchheim
Carinthia
Austria
Whistler
British Columbia
Canada
Predoi - Prettau
Trentino-Alto Adige
Italy