Rhabdodiscus subcavatus
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Ostropales
- family: Graphidaceae
- genus: Rhabdodiscus
- species: Rhabdodiscus subcavatus
Oranjestad
Sint Eustatius
BQ
Ko Pha Ngan
Nakhon Si Thammarat
Thailand