Lichens of Belgium, Luxembourg and northern France
Collema polycarpon Hoffm. |
Syn.: C. orbiculare (Schaer.) Tonglet
On exposed and rather dry calcareous rocks, in natural habitats.
Belgium: Mosan R.
Luxembourg: - .
France: Mosan: RRR, Lorr.: RRR.
Lit.: DG: 20, Ertz: 19, NL84: 13, Degelius (1954: 220-238), Ertz & Duvivier (2006: 48).