New or interesting lichens and lichenicolous fungi from Belgium and Luxembourg. VIII

Five species of lichens or lichenicolous fungi are described as new: Agonimia globulifera Brand & Diederich sp. nov., Endococcus protoblastemae Diederich sp. nov., Milospium deslooveri Diederich & Serus. sp. nov., Nectriopsis micareae Diederich, van den Boom & Ernst sp. nov and Rhizocarpon trapeliicola Brand sp. nov. The following new combinations are proposed : Agonimia gelatinosa (Ach.) Brand & Diederich comb. nov., Agonimia vouauxii (B. de Lesd.) Brand & Diederich comb. nov., Endococcus brachysporus (Zopf) Brand & Diederich comb. nov., Epibryon parvipunctum (Stem) Diederich comb nov., Lecania globulosa (Florke) van den Boom & Serus. comb. nov., Neciriopsis indigens (Arnold) Diederich & Schroers comb. nov., Nectriopsis lecanodes (Ces.) Diederich & Schroers comb. nov., Neocoleroa inundata (Vain.) Diederich comb. nov., and Trichonectria rubefaciens (Ellis & Everh.) Diederich & Schroers comb. nov. Lectotypes are chosen for Mycobilimbia hypnorum (Lib.) Kalb & Hafellner, Opegrapha culmigena Lib. and Verrucaria gelatinosa Ach. Caloplaca phlogina is shown to be distinct from C. citrina and C. flavocitrina. 111 species are new for Belgium, Luxembourg and northern France, and taxonomical or ecogeographical notes are given for rare or interesting species. The most interesting reports are those of Lecidea cyrtidia Tuck. which is mentioned correctly for the first time in Europe, and Mycoporellum sacromontanum (Strasser) Redinger, collected for the first time since its description. The Belgian and Luxembourg material of Endococcus, Leptogium, Porpidia and Usnea is revised. Nine species previously recorded from Belgium and Luxembourg, viz. Acrocordia macrospora, Anema nummularium, Arthonia epiphyscia, Bryoria capillaris, Buellia leptocline, Eopyrenula leucoplaca, Phaeospora parasitica, Sphaerellothecium araneosum, Stigmidium peltideae and Usnea subcomuta, do not occur in that area.