| Notes: |
Praia do Queimado, Sines, Portugal |
| Description: |
Thalli forming circular discs rich dark-brown, flattish, solid, firm, carnose, about an inch across, radially corrugated, closely adhering to, and difficult to remove from, the substratum, slimy and inward-curling when removed; common; mostly summer |
| Genus: |
Petrospongium Nägeli ex Kützing |
Species:
see species detailed info >
|
Petrospongium berkeleyi (Greville) Nägeli ex Kützing |
