Rhabdodiscus granulosus
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Ostropales
- family: Graphidaceae
- genus: Rhabdodiscus
- species: Rhabdodiscus granulosus
Turrialba
Cartago
Costa RicaAltamonte Springs
North Fort Myers
Florida
United States