Lichens of Belgium, Luxembourg and northern France

Distribution map of Umbilicaria grisea Hoffm.  by Paul Diederich   Umbilicaria grisea Hoffm.
« Umbilicaria deustaUmbilicaria hirsuta »

Syn.: U. murina (Ach.) DC.

On exposed, natural outcrops of siliceous rocks.

Belgium: Ard.: R.

Luxembourg: - .

France: Ard.: RR.

Lit.: La66: 348-351, NL77: 23.

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