New or interesting lichens and lichenicolous fungi from Belgium, Luxembourg and northern France. XIV. Paul Diederich1, Damien Ertz2, Marion Eichler3, Rainer Cezanne3, Pieter van den Boom4, Eberhard Fischer5, Dorothee Killmann5, Dries Van den Broeck2 & Emmanuël Sérusiaux6 1 Musée national d’histoire naturelle, 25 rue Munster, L–2160 Luxembourg, Luxembourg ([email protected]) 2 Jardin botanique national de Belgique, Domaine de Bouchout, B–1860 Meise, Belgique ([email protected]; [email protected]) 3 Kaupstraβe 43, D–64289 Darmstadt, Germany ([email protected]) 4 Arafura 16, NL–5691 JA Son, The Netherlands ([email protected]) 5 Institute for Integrated Natural Sciences, Department of Biology, University of Koblenz-Landau, Universität- straße 1, D–56070 Koblenz, Germany ([email protected]; [email protected]) 6 Evolution and Conservation Biology Unit, University of Liège, Sart Tilman B22, B–4000 Liège, Belgium ([email protected]) Diederich, P., D. Ertz, M. Eichler, R. Cezanne, P. van den Boom, E. Fischer, D. Killmann, D. Van den Broeck & E. Sérusiaux, 2012. New or interesting lichens and lichenicolous fungi from Belgium, Luxembourg and northern France. XIV. Bulletin de la Société des naturalistes luxembourgeois 113: 95-115. Abstract. Studies of large and mainly recent collections of lichens and lichenicolous fungi led to the addition of 27 taxa to the flora of Belgium, Luxembourg and northern France: Arthonia coronata, A. mediella, Candelaria pacifica, Chaenothecopsis parasitaster, Dacampia cyrtellae, Dactylospora parellaria, Diplotomma epipolium var. parasiticum, Epigloea urosperma, Graphis betulina, Graphium aphthosae (also new to the Netherlands), Lepraria toensbergiana (also new to France), Lichenopeltella maculans (also new to France), Melaspilea bagliettoana, Miriquidica atrofulva, Mycocalicium subtile, Phaeopyxis punctum, Phaeo sporo bolus chlaroterae (also new to Norway), Placynthium posterulum, Pleospora physciae, Pronectria septemseptata, Sclerophora amabilis, Spiloma auratum, Stigmidium xanthoparmeliarum, Strangospora deplanata, Trapeliopsis wallrothii, Tylophoron hibernicum and Xanthoria ucrainica. 11 additional taxa were reported in recent publications: Buellia saxorum, Cladophialophora cladoniae, Fusicladium peltigericola, Gra­ phis macrocarpa, G. pulverulenta, Laetisaria lichenicola, Lichenoconium aeruginosum, Ochrolechia mahluensis, Phoma ficuzzae, Trimmatostroma quercicola and Verrucaria rhizicola. New to Bel- gium: Echinodiscus lesdainii, Tremella hypogymniae; new to Luxembourg: Caloplaca arcis; new to France: Graphis macro carpa, Laetisaria lichenicola, Lichenochora obscuroides, L. weillii, Lichen­ opeltella peltigericola. Additional notes are given on some rare and threatened macrolichen spe- cies. Arthonia digitatae and Placynthium stenophyllum have to be deleted from the checklist. The following new combinations are proposed: Alyxoria culmigena (Lib.) Ertz (basionym Opegrapha culmigena), A. ochrocincta (Werner) Ertz (O. ochrocincta), A. variiformis (Anzi) Ertz (O. varii­ formis), A. viridipruinosa (B. J. Coppins & R. Yahr) Ertz (O. viridipruinosa), Zwackhia bonplandii (Fée) Ertz (O. bonplandii), Z. circumducta (Nyl.) Ertz (O. circumducta), Z. prosodea (Ach.) Ertz (O. prosodea), Z. robusta (Vain.) Ertz (O. robusta) and Z. sorediifera (P. James) Ertz (O. sorediifera). 1. Introduction area. In the enumeration of specimens, the abbreviation ‘h’ refers to the private herbar- This paper continues the series of notes on the flora of lichens and lichenicolous fungi ium of the collector. The term ‘checklist’ is in Belgium, Luxembourg and northern used for the checklist of lichens and licheni- France (Diederich & Sérusiaux 2000, Eichler colous fungi in Belgium, Luxembourg and et al. 2010). It further includes the most northern France (Diederich et al. 2012), and recent updates regarding nomenclature and the term ‘checklist area’ is used for the area taxonomy of the species present in our study covered by that checklist. Bull. Soc. Nat. luxemb. 113 (2012) 95 2. Survey of other publications on ais) and O. turneri (Sm.) Hasselrot (Belgium, the lichen flora and vegetation of the Luxembourg, France: Meuse). Ochrolechia checklist area mahluensis is reported for the first time from our checklist area. Crous et al. (2010) described the new hypho- Lawrey et al. (2011) presented a molecu- mycete Fusicladium peltigericola Crous & lar phylogenetic study of the lichenicolous Diederich, isolated from galls on Peltigera genus Lichenoconium and described a new rufescens induced by Hawksworthiana pelti­ species, Lichenoconium aeruginosum Died- gericola, collected in Luxembourg. erich, M. Brand, van den Boom & Lawrey, Diederich (2010) described the new licheni- collected in Luxembourg, northern France colous hyphomycete Sclerococcum cladoniae and the Netherlands. Diederich, developing minuscule sporo- The new Verrucaria rhizicola Aptroot & dochia on the thallus of Cladonia species Thüs has been described from the forêt in Luxembourg. Because of morphological de Boulogne in France (Boul. district) similarities with the lichenicolous Cladophi­ (Lumbsch et al. 2011), where it grew on alophora parmeliae, the species was eventu- roots of Alnus occasionally immersed in a ally combined in that genus, as C. cladoniae rivulet. (Diederich) Diederich (Diederich et al. 2012). Stieperaere & Van den Broeck (2011) and Diederich et al. (2010) described the fac- Van den Broeck & De Beer (2011) presented ultative lichenicolous hyphomycete Trim­ inventories of lichens and mosses in several matostroma quercicola Diederich, U. Braun Flemish nature reserves. Van den Broeck & Heuchert, growing over dying lichens on & Diederich (2011) published an inven- Quercus bark or sometimes directly on the tory of the lichen flora of the cemetery of bark, in Luxembourg and Belgium. Steenbrugge near Brugge. Van den Broeck Diederich et al. (2011) described the new (2011a) summarized the efforts of lichen lichenicolous basidiomycete Laetisaria mapping in the Antwerp Province in Bel- lichenicola, Diederich, Lawrey & Van den gium and presented new lichen records Broeck collected on corticolous Physcia from 12 localities, incl. Fuscidea pusilla species in Luxembourg, Belgium and Ger- Tønsberg newly reported from our checklist many. An additional French specimen has area; however, unpublished studies by Van recently been examined by us: France, Var, den Broeck & Ertz questioned if F. pusilla Haute Siagne, c. 3.5 km S of Fayence, 1.5 km can be distinguished from young and sterile N of St-Paul-en-Forêt, area ‘Trestaure’ NE of F. lightfootii in Belgium and Luxembourg, camping site ‘le Parc’, on Quercus pubescens, and therefore we will not include the species on Physcia adscendens, 25.4.2000, Triebel & in our checklist until more evidence, based Rambold, Triebel: Microfungi Exsiccati 540 on the entire material of the checklist area, is [GZU! (with Marchandiomyces corallinus), available. Van den Broeck (2011b) presented BPI (examined by Dr M. Ghobadnejhad)]. the report of an excursion to Limburg (Flan- ders), where they discovered Lemmopsis Duvivier et al. (2011) discovered Buellia sax­ arnoldiana (new to Belgium) and Cladonia orum A. Massal., a species new to our check- cariosa (new to Flanders). Van den Broeck & list area, in the Sambre valley in Belgium. Ertz (2011) reported 189 species of lichens In his remarkable revision of European and lichenicolous fungi growing around the Ochrolechia, Kukwa (2011) reported sev- National Botanic Garden of Belgium, repre- eral species from our checklist area: O. senting the highest number of species ever androgyna (Hoffm.) Arnold s.str. (Belgium, observed in one area in Flanders. Van den Luxembourg), O. bahusiensis H. Magn. (Bel- Broeck (2010) documented the increase of gium, Luxembourg), O. mahluensis Räsänen lichens with Trentepohlia in Flanders. (Luxem bourg), O. microstictoides Räsänen In a phylogenetical study of lichenicolous (Belgium), O. parella (L.) A. Massal. (France: Phoma species, Lawrey et al. (2012) reported Ardennes), O. subviridis (Høeg) Erichsen P. ficuzzae Brackel from France, Pas-de- (Belgium, Luxembourg, France: Pas-de-Cal- Calais on the thallus of Ramalina fastigiata; 96 Bull. Soc. Nat. luxemb. 113 (2012) the species is new to our checklist area and Zwackh becomes G. fagicola (Arnold) to France. Phoma cladoniicola Diederich, Kremp., whilst Belonia nidarosiensis (Kindt) Kocourk. & Etayo, previously known only P.M. Jørg. & Vězda has never been combined from Cladonia, has also been found on in Gyalecta so far. Ramalina pollinaria and Squamarina car­ Etayo & Triebel (2010) showed that Clypeo­ tilaginea in our area of study, and P. folia­ coccum psoromatis (A. Massal.) Etayo is the ceiphila Diederich, Kocourk. & Etayo, for- correct name to be used for the lichenicol- merly known only from Cladonia, has been ous ascomycete traditionally called C. epi­ reported from Parmelia sulcata in Belgium. crassum (H. Olivier) Nav.-Ros. & Cl. Roux. Ecological papers mentioning lichens in the Laundon (2010) described the new Lecanora checklist area are rare and it is therefore of antiqua J. R. Laundon for the species com- interest to report the recent publication by monly called L. conferta auct. He further Verstraeten et al. (2012) on the impact of explained that L. saxicola (Pollich) Ach. is declining atmospheric deposition in Flan- the correct name for L. muralis Rabenh., but ders (northern part of Belgium); they report that a formal proposal to retain the current that ‘Despite