Lichens of Belgium, Luxembourg and northern France
Ionaspis lacustris (With.) Lutzoni |
Syn.: Aspicilia lacustris (With.) Th. Fr., Hymenelia lacustris (With.) M. Choisy, Lecanora lacustris (With.) Nyl.
On siliceous, at least periodically inundated rocks, often in streams.
Belgium: Ard.: AR.
Luxembourg: Ard.: R.
France: Ard.: RRR.
The closely related species Ionaspis ceracea (Arnold) Hafellner & Türk, syn. Hymenelia ceracea (Arnold) M. Choisy may be present in the study area, but its taxonomic value remains to be studied (Lutzoni & Brodo 1995).
Lit.: La69: 105, Mü1: 150, NL87: 20, NL92: 170.