Lichens of Belgium, Luxembourg and northern France

Distribution map of Collema flaccidum (Ach.) Ach. © by Paul Diederich   Collema flaccidum (Ach.) Ach.
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see legend below picture
Collema flaccidum – Luxembourg (Ard.), Unterschlinder – © 2000 by Charles Reckinger

Syn.: C. rupestre (Sw.) Rabenh.

On siliceous rocks, often near rivers, rarely corticolous, on Acer, Fraxinus and Populus.

Belgium: Mosan: RR, Ard.: AR.

Luxembourg: Ard.: R, Lorr.: RR.

France: Ard.: RRR, Lorr.: RRR.

Lit.: DG: 20, La68: 73, NL92: 169, Degelius (1954: 384-400).

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