Lichens of Belgium, Luxembourg and northern France

Distribution map of Psora vallesiaca (Schaer.) Timdal  by Paul Diederich   Psora vallesiaca (Schaer.) Timdal
« Psora testacea

Syn.: P. deceptoria (Nyl.) Flagey

Terricolous in deep fissures of hard and exposed, calcareous outcrops.

Belgium: Mosan: RRR (?†1967).

Luxembourg: - .

France: - .

Lit.: La69: 103, 124.

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