The Lichens and Lichenicolous Fungi of Belgium and Luxembourg ...

THE LICHENS OF BELGIUM AND LUXEMBOURG. AN ANNOTATED CHECKLIST 153
B Mar.: AR, Fl.: AR, Brab.: AR (†? 1962), Mosan:
AR, Ard.: AR-AC, Lorr.: R. L Ard.: AR, Lorr.:
AR.
Until the early eighties, well-developed populations
with exuberant specimens occurred throughout
the S part of the study area. All these populations
are now gone or in a very poor condition.
Lit.: Ho: 231, L4: 20, La66: 450, WS: 57-58, 111.
lacera (With.) J. R. Laundon
Syn.: R. duriaei (De Not.) Bagl., R. evernioides
auct., non Nyl.
Corticolous on Ulmus, also on Populus and Salix.
B Mar.: RR (†1954). L - . F Mar.: R (†1910).
Now extinct throughout the area of study.
Lit.: BDL1: 88, L4: 20, La66: 453, Barkman (1990: 14),
Delzenne-Van Haluwyn (1973: 111-112), Massart
(1910: Phot. 281).
pollinaria (Westr.) Ach.
Syn.: R. intermedia auct., non (Nyl.) Nyl.
Saxicolous, on dry and sheltered underhangs, either
on calcareous or on siliceous rocks (incl. sandstone),
rarely on walls.
B Mosan: R, Ard.: AR. L Ard.: R, Lorr.: R.
Lit.: La66: 452, NL92: 173, NL97: 55, Diederich (1985a:
25).
thrausta (Ach.) Nyl.
Ecology of the only known specimen unknown.
B - . L Distr. unknown: RRR (†