Lichens of Belgium, Luxembourg and northern France

Distribution map of Acrocordia gemmata (Ach.) A. Massal.  by Paul Diederich   Acrocordia gemmata (Ach.) A. Massal.
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Acrocordia gemmata – France (Lorr.), Meuse, Marville, 2004, Diederich 15967 – © 2006 by P. Diederich

Syn.: Arthopyrenia alba (Schrad.) Zahlbr., A. sphaeroides (Wallr.) Zahlbr.

Corticolous, on old trunks of Acer, Fraxinus, Populus, Quercus and Tilia, rarely on Fagus, usually in stable and rather humid forests.

Belgium: Mosan: R, Ard.: AR (especially in the south), Lorr.: R.

Luxembourg: Lorr.: R.

France: Mar.: RR, Boul.: RR, Pic.: RRR, Lorr.: RR.

Lit.: Boul.: 66, Di: 32 (sub A. cavata), 33, La69: 98, Ertz & Duvivier (2006: 47).

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