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

THE LICHENS OF BELGIUM AND LUXEMBOURG. AN ANNOTATED CHECKLIST 131
Corticolous, on the smooth bark of deciduous trees,
mainly Acer and Fraxinus, in shaded and wellpreserved
forests.
B Mar.: RRR, Mosan: R, Ard.: AR. L Ard.: RRR,
Lorr.: RR.
Lit.: DG: 18, Di: 179, NL87: 22, NL97: 52.
*rupestris Pers.
On Bagliettoa and Verrucaria species, especially B.
steineri, V. calciseda, V. muralis and V. nigrescens,
mainly on natural, calcareous or sandstone
outcrops.
B Mosan: AR. L Lorr.: RR. F Mar.: RRR, Lorr.
(Moselle): RRR.
Lit.: BDL2: 45 (sub Leciographa monspeliensis), L5: 34
(sub O. saxatilis), NL84: 16 (sub O. parasitica),
NL87: 22, Vouaux (1912-14: 491).
saxatilis DC.
?Incl. O. saxicola Ach.
On natural outcrops of hard calcareous rock.
B Mosan: RR. L - .
Lit.: Tonglet (1898: 37, sub O. saxicola), NL84: 16,
NL97: 52.
varia Pers.
Syn.: O. diaphora (Ach.) Ach., O. lichenoides Pers.,
O. pulicaris auct., non Pers.: Fr., incl. O. diaphora
var. chlorina (Pers.) Schaer. and var. signata Ach.
Corticolous on various trees (especially Acer,
Fraxinus, Quercus and Ulmus), in forests and on
isolated trees.
B Mar.: RR, Mosan: R, Ard.: RR, Lorr.: RRR. L
Ard.: RR, Lorr.: AR.
Lit.: Di: 175-176, 179-180, Ho: 167, 169, 595, NL84: 16,
NL92: 172, NL97: 25-26, 52.
variiformis Anzi (‘variaeformis’)
On a natural, calcareous outcrop in sunny conditions.
B - . L Lorr. (Moselle): RRR.
Lit.: L8.
vermicellifera (Kunze) J. R. Laundon
Corticolous, most frequent on dry sides of old trees
(Populus, Quercus, Salix, etc.) in valleys, also
present and locally abundant on Hedera ‘trunks’
climbing over sheltered, calcareous rocks.
B Fl.: RRR (†