178 P. DIEDERICH & E. SÉRUSIAUX elegans (Link) Th. Fr. Syn.: Caloplaca elegans (Link) Th. Fr. Saxicolous on all kinds <strong>of</strong> substrates which are at least slightly calcareous, always in artificial conditions (walls, quarries, etc.), unknown in natural habitats. B Mar.: RR, Fl.: R, Brab.: R, Camp.: R, Mosan: AR, Ard.: AR, Lorr.: AR. L Ard.: R, Lorr.: AR. Lit.: La66: 466-467, NL92: 174, VGH: 114, Van L<strong>and</strong>uyt & H<strong>of</strong>fmann (1996). fallax (Hepp) Arnold Saxicolous, on natural, siliceous outcrops, rarely corticolous, mainly at the base <strong>of</strong> old roadside trees, always in rather nitrophilous conditions. B Camp.: RRR, Mosan: RR, Ard.: R. L Ard.: R, Lorr.: AR. Lit.: La66: 465, Mü1: 157, NL92: 174, WS: 61, 117. parietina (L.) Th. Fr. Corticolous on roadside trees or in orchards, or saxicolous on all kinds <strong>of</strong> substrates (especially near the coast), always in nitrophilous conditions. B Mar.: CC, Fl.: CC, Brab.: C, elsewhere: AC-C. L Ard.: AC, Lorr.: AC. Lit.: Ca: 169-170, Ho: 245, La66: 467, Qu: 127-128, WS: 62, 118. polycarpa (H<strong>of</strong>fm.) Rieber Mainly on well-lit isolated trees or bushes, <strong>of</strong>ten on dead branches, usually in ruderal or nitrophilous conditions. B Mar.: CC, Fl.: CC, Brab.: AC, elsewhere: AC-C. L Ard.: AC, Lorr.: AR. Lit.: Ca: 172-173, Ho: 248, La66: 465-466, Qu: 127, 129, WS: 62, 119. aureola auct., non (Ach.) Erichsen, see X. calcicola lobulata (Flörke) B. de Lesd., see Caloplaca lobulata lychnea (Ach.) Th. Fr., see X. c<strong>and</strong>elaria XANTHORIICOLA D. Hawksw. *physciae (Kalchbr.) D. Hawksw. Syn.: Coniosporium physciae (Kalchbr.) Sacc. On apothecia <strong>of</strong> Xanthoria parietina <strong>and</strong> X. polycarpa. B Mar.: RRR. L Ard.: RRR, Lorr.: RR. F Mar.: RR (
THE LICHENS OF BELGIUM AND LUXEMBOURG. AN ANNOTATED CHECKLIST 179 Aguirre, B., 1991. - A taxonomic study <strong>of</strong> the species referred to the ascomycete genus Leptorhaphis. - Bull. Br. Mus. Nat. Hist. (Bot.) 21: 85-192. Aigret, C., 1901. - Monographie des Cladonia de Belgique. - Bull. Soc. Roy. Bot. Belg. 40: 43-213. Alstrup, V. & U. Søchting, 1989. - Checkliste og status over Danmarks laver. - Nordisk Lichenologisk Forening, København, 44 pp. Aptroot, A., 1988. - Lichenen van de voorjaarsexcursie 1987 naar Zuid-Limburg en aangrenzend België. - Buxbaumiella 22: 18-24. (NL87) Aptroot, A., 1991. - Korstmossentabel naar veldkenmerken. - Jeugdbondsuitgeverij, Utrecht, 39 pp. Aptroot, A. & P. P. G. van den Boom, 1998. - Pyrenocollema chlorococcum, a new species with a chlorococcoid photobiont from zinc-contaminated soils <strong>and</strong> wood. - Cryptogamie, Bryol. Lichénol. 19: 193-196. Aptroot, A., M. Br<strong>and</strong> & L. Spier, 1998. - Fellhanera viridisorediata, a new sorediate species from sheltered trees <strong>and</strong> shrubs in western Europe. - Lichenologist 30: 21-26. Aptroot, A., P. Diederich, C. M. van Herk, L. Spier & V. Wirth, 1997. - Protoparmelia hypotremella, a new sterile corticolous species from Europe, <strong>and</strong> its lichenicolous fungi. - Lichenologist 29: 415-424. Aptroot, A. & C. M. van Herk, 1999. - Lecanora barkmaneana, a new nitrophilous sorediate corticolous lichen from the Netherl<strong>and</strong>s. - Lichenologist 31: 3-8. Aptroot, A., C. M. van Herk, L. B. Sparrius & P. P. G. van den Boom, 1999. - Checklist van de Nederl<strong>and</strong>se lichenen en lichenicole fungi. - Buxbaumiella 50 (1): 4-64. Arts, T. & M. H<strong>of</strong>fmann, 1995. - Verslag van de excursies met de VWB naar Ukkel op 1 februari en 14 juni 1992. - Muscillanea 15: 19-24. Arup, U., 1997. - Caloplaca maritima, a misunderstood species in western Europe. - Lichenologist 29: 503- 512. Asperges, M., 1981. - A new lichen species, Cladonia berghsonii Asperges sp. nova (sect. Cocciferae). - Cryptogamie, Bryol. Lichénol. 2: 349-358. Asperges, M., 1983. - De Cladonia’s uit de sectie Cocciferae in België. - Doctoral <strong>The</strong>sis, Univ. Antwerpen, 523 pp. Asperges, M., 1985a. - Stereocaulon condensatum H<strong>of</strong>fm. is aanwezig in het Kempisch district. - Dumortiera 31: 30-31. Literature Asperges, M., 1985b. - Cladonia diversa Asperges en Europe occidentale. - Dumortiera 32: 24-31. Asperges, M., 1986. - Verspreiding en ecologie van Cetraria isl<strong>and</strong>ica (L.) Ach. in België. - Dumortiera 34-35: 36-42. Asperges, M., 1987. - Verspreiding en ecologie van de Cladonia’s, groep Cocciferae (Lichenes) in België. - Mém. Soc. Roy. Bot. Belg. 9: 94-102. Asperges, M., 1990. - Les macrolichens sur les terrils de Genk (Winterslag) et As (Waterschei) (Province du Limbourg, Belgique). - Mém. Soc. Roy. Bot. Belg. 12: 127-134. Barkman, J. J., 1949. - Notes sur quelques associations épiphytiques de la Petite Suisse <strong>Luxembourg</strong>eoise. - Arch. Inst. G.-D. Lux., Sc. Nat., Phys. Math., n. S. 18 (1948-49): 79-94. Barkman, J. J., 1958. - Phytosociology <strong>and</strong> ecology <strong>of</strong> cryptogamic epiphytes. - Ed. Van Gorcum, Assen (Netherl<strong>and</strong>s), 629 pp. + 16 photographs + tables. Barkman, J. J., 1963. - De epifyten-flora en -vegetatie van Midden-Limburg (België). - Verh. Kon. Nederl. Akad. Wetensch. Afd. Natuurk., 2de reeks 54 (4): 1- 46. (Ba) Barkman, J. J., 1990. - <strong>The</strong> epiphytic flora <strong>and</strong> vegetation along the Belgian <strong>and</strong> northern French coast in the fifties. - Mém. Soc. Roy. Bot. Belg. 12: 11-19. Bouly de Lesdain, M., 1905. - Liste des lichens recueillis à Spa. - Bull. Soc. Bot. Fr. 52: 16-38. (BDL3) Bouly de Lesdain, M., 1909. - Notes lichénologiques. - Bull. Soc. Bot. Fr. 56: 170-175. Bouly de Lesdain, M., 1910a. - Recherches sur les lichens des environs de Dunkerque. - Imprim. P. Michel, Dunkerque, 301 pp. (BDL1) Bouly de Lesdain, M., 1910b. - <strong>Lichens</strong> belges rares ou nouveaux. - Bull. Soc. Roy. Bot. Belg. 47: 39-45. (BDL2) Bouly de Lesdain, M., 1914. - Recherches sur les lichens des environs de Dunkerque, 1 er supplément. - Société dunkerquoise pour l'encouragement des sciences, des lettres et des arts, Dunkerque, 190 pp. Bouly de Lesdain, M., 1960. - Lecanora fl<strong>and</strong>rica n. sp. B. de Lesd. Lichen végétant sur des tablettes en ciment placées pour l’écoulement de la pluie à la base des fenêtres d’une maison. - Revue Bryol. Lichénol. n. S. 29: 277-278. Breuss, O., 1990. - Die Flechtengattung Catapyrenium (Verrucariaceae) in Europa. - Stapfia 23: 1-174.