Lichens of Belgium, Luxembourg and northern France

Distribution map of Bacidina caligans (Nyl.) Llop & Hladun © by Paul Diederich   Bacidina caligans (Nyl.) Llop & Hladun
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see legend below picture
50 µm
photo #1 photo #2 photo #3 photo #4
Bacidina caligans – Luxembourg (Lorr.), Steinfort, on Peltigera, 2009, Diederich 16826 (left: ascomatal section in water; right: reaction with KOH) – © 2009 by P. Diederich

Syn.: Bacidia caligans (Nyl.) A. L. Sm., Woessia caligans (Nyl.) Sérus. & Diederich

On calcareous walls or concrete, or epiphytic, on Malus, Salix or Sambucus, usually in ruderal conditions.

Belgium: Mar.: RRR, Fl.: RR, Brab.: RRR, Mosan: RR, Ard.: RRR.

Luxembourg: Ard.: RRR, Lorr.: R.

France: Mar.: RR.

Lit.: Boul.: 74, Di: 51-52, L6: 139, NL84: 12, NL92: 168, NL97: 38, Purvis et al. (1992: 105).

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