Porina nuculastrum
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Ostropales
- family: Porinaceae
- genus: Porina
- species: Porina nuculastrum
Pilar
Alagoas- Areia Branca
Sergipe
Brazil
Hojancha
Guanacaste
Costa Rica