Lichens of Belgium, Luxembourg and northern France

Distribution map of Verrucaria umbrinula Nyl.  by Paul Diederich   Verrucaria umbrinula Nyl.
« Verrucaria thalassinaVerrucaria viridula »

On siliceous, natural outcrops.

Belgium: Mosan: RRR, Ard.: RR.

Luxembourg: Ard.: RR.

France: - .

Lit.: L8: 86.

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