Lichens of Belgium, Luxembourg and northern France

Distribution map of Umbilicaria deusta (L.) Baumg.  by Paul Diederich   Umbilicaria deusta (L.) Baumg.
Umbilicaria grisea »

On siliceous, usually humid rocks, in natural and artificial habitats.

Belgium: Ard.: AR.

Luxembourg: - .

France: - .

Lit.: La66: 342-345, Schl: 156, 217 (the ancient report from Luxembourg: Lorr. is almost surely a misidentification for U. polyphylla) .

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