Syn.: Sagedia marina Deakin

On calcareous stones, shells, etc. close to the sea.

Belgium: - .

Luxembourg: - .

France: Mar.: RRR (1910).

This species was often considered to be a lichenicolous fungus. However, van den Boom & Aptroot (1996) suggest that it is a non-parasitic lichen.

Lit.: BDL1: 257-258.