Lichens of Belgium, Luxembourg and northern France

Distribution map of Physcia dubia var. teretiuscula (Ach.) Clauzade & Cl. Roux  by Paul Diederich   Physcia dubia var. teretiuscula (Ach.) Clauzade & Cl. Roux
« Physcia dubia var. dubiaPhyscia leptalea »
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Physcia dubia var. teretiuscula – Luxembourg (Ard.), Niederfeulen – © 2006 by Paul Diederich

Syn.: P. teretiuscula (Ach.) Lynge

Mainly on natural, exposed, siliceous outcrops, usually in thermophilous habitats, rare on artificial substrates like roofs and old walls, once found on tree nearby rocks covered by the taxon.

Belgium: Mosan: R, Ard.: AR.

Luxembourg: Ard.: AR.

France: - .

Lit.: La66: 477-478, Mü1: 158, Giralt & van den Boom (1996: 81), Lambinon (1968b: 405).

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