176 P. DIEDERICH & E. SÉRUSIAUX *verrucosa (Vouaux) Petr. & Syd. On Lecanora hybocarpa, mainly on the apothecial margin. B Mosan: RRR. L - . Lit.: L8. VOUAUXIOMYCES Dyko & D. Hawksw., see Abrothallus *ramalinae (Nordin) D. Hawksw., see Abrothallus suecicus *truncatus (B. de Lesd.) Dyko & D. Hawksw., see Abrothallus microspermus VULPICIDA Mattson & M. J. Lai pinastri (Scop.) Mattson & M. J. Lai Syn.: Cetraria pinastri (Scop.) Gray On bark <strong>of</strong> various trees, <strong>of</strong>ten on small branches <strong>and</strong> twigs, mainly near the ground in such a way that the thalli are likely to be covered by snow in winter, once lignicolous, on a fence post. B Mar.: RR, Mosan: RR, Ard.: AR→ RR, decreasing, Lorr.: RRR (†
THE LICHENS OF BELGIUM AND LUXEMBOURG. AN ANNOTATED CHECKLIST 177 Saxicolous, on s<strong>and</strong>stone rocks, or corticolous, on Alnus <strong>and</strong> Pyrus. B - . L Lorr.: RR. <strong>The</strong> identity <strong>of</strong> the material is doubtful <strong>and</strong> requires further studies. Lit.: Di: 47, L3: 26. inundata (Fr.) Sérus. & Diederich Syn.: Bacidia inundata (Fr.) Körb., Bacidina inundata (Fr.) Vězda On ± calcareous rocks in humid <strong>and</strong> shaded conditions, <strong>of</strong>ten in streams. B Ard.: RR. L Ard.: RRR, Lorr.: RR. Lit.: Mü1: 144, NL97: 39. Bacidia neosquamulosa Aptroot & van Herk On Populus at margin <strong>of</strong> a Picea plantation. B Fl.: RRR. L - . Probably overlooked. Lit.: Aptroot & van Herk (1999). Bacidia phacodes Körb. Syn.: Bacidina phacodes (Körb.) Vězda, Bacidia albescens (Stizenb.) Bausch On Acer campestre in sheltered <strong>and</strong> humid forests. B Mosan: RR. L - . Probably overlooked. Lit.: L5: 14-15, NL84: 12, van den Boom & Sérusiaux (1996: 22). Bacidia saxenii Erichsen On walls, stones, gravestones, normally in ruderal conditions, also on slate debris in a disused quarry. B Fl.: RRR. L Ard.: RRR, Lorr.: RRR. <strong>The</strong> report <strong>of</strong> this species from B Camp.: RRR by NL93: 42 is erroneous, the specimen belonging to a possibly undescribed species. Lit.: L8. fusarioides D. Hawksw., Poelt & Tscherm.-Woess, see W. arnoldiana XANTHOPARMELIA (Vain.) Hale conspersa (Ach.) Hale Syn.: Parmelia conspersa (Ach.) Ach., P. stenophylla auct., non (Ach.) Heugel, nom. conf., P. molliuscula auct. belg. p. p., non Ach. On exposed, siliceous rocks, on walls or ro<strong>of</strong>s, exceptionally on s<strong>and</strong>stone rocks, once found on dust-enriched bark. B Brab.: RR, Mosan: AC, Ard.: AC. L Ard.: AC, Lorr.: RRR. <strong>The</strong> report <strong>of</strong> X. angustiphylla (Gyeln.) Hale from B by Hale (1990: 68) refers to non-isidiate forms <strong>of</strong> X. conspersa. <strong>The</strong> genuine X. angustiphylla does not occur in the study area. Lit.: La66: 432-433, Diederich (1985a: 23), Lambinon & Sérusiaux (1985b: 207). mougeotii (D. Dietr.) Hale Syn.: Parmelia mougeotii D. Dietr. Saxicolous, on exposed, siliceous or s<strong>and</strong>stone rocks <strong>and</strong> stones, in natural habitats <strong>and</strong> on slate debris in old quarries, also on walls. B Mosan: RR, Ard.: AR. L Ard.: AR, Lorr.: RR. Lit.: La66: 433-434, Lambinon & Sérusiaux (1985b: 209). protomatrae (Gyeln.) Hale Syn.: Parmelia protomatrae Gyeln. On a dry <strong>and</strong> sunny, natural, slightly calcareous, siliceous outcrop. B Mosan: RRR. L - . Lit.: Schl: 240 (probably a mistake for var. somloënsis, see L8), Lambinon & Sérusiaux (1985b: 209-210). somloënsis (Gyeln.) Hale var. somloënsis Syn.: X. taractica (Kremp.) Hale, Parmelia taractica Kremp., P. stenophylla auct. p. m. p., non (Ach.) Heugel, nom. conf. On dry <strong>and</strong> sunny, natural outcrops <strong>of</strong> siliceous rocks. B - . L Ard.: RRR. F Mosan: RRR. Lit.: L8, Schl: 134, 240, Lambinon & Sérusiaux (1985b: 210). angustiphylla (Gyeln.) Hale, see X. conspersa incurva (Pers.) Hale, see Arctoparmelia incurva XANTHORIA (Fr.) Th. Fr. <strong>The</strong> specimens referred to X. c<strong>and</strong>elaria <strong>and</strong> X. fallax should be re-examined, as the recently circumscribed X. fulva (H<strong>of</strong>fm.) Poelt & Petutschnig <strong>and</strong> X. ulophyllodes Räsänen are likely to occur in the study area (Poelt & Petutschnig 1992). calcicola Oxner Syn.: X. aureola auct., non (Ach.) Erichsen Saxicolous, exceptionally corticolous, in natural <strong>and</strong> artificial habitats, always in nitrophilous conditions. B Mar.: CC, Fl.: AR, Camp.: AR, Brab.: AR, Mosan: AC, Ard.: AR, Lorr.: R. L Ard.: AR, Lorr.: AR. Lit.: Ho: 241, La66: 468, VGH: 114, Duvigneaud & Lambinon (1963: 47). c<strong>and</strong>elaria (L.) Th. Fr. Syn.: X. lychnea (Ach.) Th. Fr. Corticolous, nitrophilous, on roadside trees, in orchards, etc., <strong>of</strong>ten at the base <strong>of</strong> trunks, rarely saxicolous. B Mar.: CC, Fl.: CC, elsewhere: AC-C. L Ard.: AC, Lorr.: AC. Lit.: Ca: 167-168, Ho: 243, La66: 464, Qu: 125-127, WS: 60-61, 116.
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