Lichens of Belgium, Luxembourg and northern France

Distribution map of Verrucula helvetica (B. de Lesd.) Nav.-Ros. & Cl. Roux  by Paul Diederich   Verrucula helvetica (B. de Lesd.) Nav.-Ros. & Cl. Roux

Lichenicolous lichen, on Caloplaca cirrochroa, over calcareous, natural outcrops.

Belgium: - .

Luxembourg: - .

France: Mosan: RRR.

Lit.: L11.

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