Lichens of Belgium, Luxembourg and northern France

Distribution map of Physcia subalbinea Nyl.  by Paul Diederich   Physcia subalbinea Nyl.
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Physcia subalbinea – Luxembourg (Ard.), Brandenbourg, 1966, Lambinon 66/1498 (LG) – © 2004 by Paul Diederich

Syn.: P. wainioi Räsänen, P. caesiella (B. de Lesd.) Suza

On natural, exposed, siliceous outcrops and on artificial substrates (mainly old walls), rarely corticolous on roadside trees (Fraxinus).

Belgium: Mosan: RR (†1929), Ard.: R.

Luxembourg: Ard.: R.

France: Mosan: RRR.

Lit.: La66: 475-476, WS: 50, 100.

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