Herzogia 32 (1), 2019: 111–126 https://doi.org/10.13158/heia.32.1.2019.111 111 New and otherwise noteworthy records of lichenized and lichenicolous fungi from central European Russia Eugenia E. Muchnik, Liudmila A. Konoreva, Sergey V. Chesnokov, Alexander G. Paukov, Andrei Tsurykau & Julia V. Gerasimova Abstract: Muchnik, E., Konoreva, L., Chesnokov, S., Paukov, A., Tsurykau, A. & Gerasimova, J. 2019. New and otherwise noteworthy records of lichenized and lichenicolous fungi from central European Russia – Herzogia 32: 111–126. Twenty-six taxa of lichenized and lichenicolous fungi are treated, of which one (Stictis mollis) is recorded for the first time for Russia, three (Acarospora normanii, Cladonia monomorpha and Polysporina subfuscescens) are new for the European part of Russia, and Reconditella physconiarum is new for central European Russia. A further twenty- one species (Arthonia reniformis, Bacidia biatorina, Bacidina sulphurella, Candelaria pacifica, Catillaria croatica, Chaenotheca phaeocephala, Chaenotheca subroscida, Cladonia cryptochlorophaea, Cladonia merochlorophaea, Epicladonia sandstedei, Gyalecta flotowii, Gyalecta truncigena, Hypogymnia farinacea, Illosporiopsis christianse- nii, Julella fallaciosa, Micarea tomentosa, Muellerella hospitans, Nephroma parile, Phaeophyscia endophoenicea, Steinia geophana and Verrucaria dolosa) were extremely rarely observed before in central European Russia. Short notes on characters and distribution of the species are provided. Zusammenfassung: Muchnik, E., Konoreva, L., Chesnokov, S., Paukov, A., Tsurykau, A. & Gerasimova, J. 2019. Neue und andere bemerkenswerte Funde lichenisierter und lichenicoler Pilze aus dem zentralen europäischen Teil Russlands – Herzogia 32: 111–126. Sechsundzwanzig Flechten und flechtenbewohnende Pilzarten werden aus dem europäischen Teil von Russland gemeldet. Stictis mollis wird erstmals für Russland belegt, Acarospora normanii, Cladonia monomorpha und Polysporina subfuscescens sind neu für den europäischen Teil von Russland, und Reconditella physconiarum ist neu für den mittleren Teil vom europäischen Russland. Weitere einundzwanzig Arten (Arthonia reniformis, Bacidia biatorina, Bacidina sulphurella, Candelaria pacifica, Catillaria croatica, Chaenotheca phaeocephala, Chaenotheca subroscida, Cladonia cryptochlorophaea, Cladonia merochlorophaea, Epicladonia sandstedei, Gyalecta flotowii, Gyalecta truncigena, Hypogymnia farinacea, Illosporiopsis christiansenii, Julella fallaciosa, Micarea tomentosa, Muellerella hospitans, Nephroma parile, Phaeophyscia endophoenicea, Steinia geophana and Verrucaria dolosa) wurden bisher im Zentrum des europäischen Teils von Russland äußerst selten beobachtet. Auf ihre kennzeichnenden Merkmale und ihre Verbreitung wird kurz eingegangen. Key words: biodiversity, lichens, allied fungi. Introduction Central European Russia (CER) includes 28 constituent entities within the Federation (23 oblasts, four republics and the city of Moscow). The territory of CER covers c. 1,000,000 km2. It includes several physiographic regions, namely forest (southern taiga, mixed and broad- leaved forests), forest-steppe and steppe zones. Lichenological discoveries in CER date back to the end of the 18th century (Stephan 1792). The first summary was published by Elenkin (1906 –1911), and later by Tomin (1928, 1956) 112 Herzogia 32 (1), 2019 and Golubkova (1966). Lichenologists were mainly focused on the study of local lichen biota (e.g. Byazrov 1969a, b, 1996, 2009, etc., Malysheva 1986, Muchnik 2001, 2005, 2016 etc., Shustov 2006, Evstigneeva 2007, Muchnik et al. 2009a, Muchnik & Konoreva 2012, Notov et al. 2011). As different methods were applied during the long history of lichenological research, the territory of central European Russia is insufficiently and unevenly studied. Mapping of species distribution has rarely been carried out, for example, in Moscow (Byazrov 2002) and Tsentralno-Lesnoy State Nature Biosphere Reserve in Tver oblast (Notov et al. 2016). The supporting vouchers of lichens collected in CER are dispersed among many local herbaria in regional universities or State Nature Reserves, and therefore it is hard to verify previous identifications and revise critical taxa. Furthermore, some herbaria were destroyed and there is no chance to reexamine the supporting vouchers. In this regard, the assessment of occurrence of species in CER and evaluation of their rarity was largely based on literature data. So far two supplements to lichen biota of the central European Russia were published (Muchnik 2017, Muchnik & Konoreva 2017). This contribution is devoted to further new lichenological records from this area. Materials and Methods Lichenological explorations were carried out in 2015 –2017 mainly by the first author in sev- eral oblasts of the central European Russia (Bryansk, Kaluga, Lipetsk, Moscow, Ryazan and Voronezh oblasts). The study was focused on poorly investigated areas or old-growth wood- lands mainly located within specially protected sites. Furthermore, study plots were selected following the framework of the state assignment of the Institute of Forest Science, RAS. Reference material was mainly studied in LE (herbarium of V. L. Komarov Botanical Institute of RAS, St.-Petersburg), RSU (Ryazan State University), and BRSU (Bryansk State University). The photographs of the species were taken using Stemi-2000 CS microscope with an attached AxioCam MRc5 camera, and Nikon Eclipse 80i microscope equipped with Nikon DS-5 m camera. CombineZP software was used for the z-stack. Secondary chemistry was analyzed by thin-layer chromatography (TLC) in solvents A and C according to the methods of Orange et al. (2001). Cited specimens are available in the following herbaria: LE, BRSU, and the herbarium of the Institute of Forest Science RAS. The names of the authors are abbreviated in the text in the following way: EM = Eugenia E. Muchnik, LK = Liudmila A. Konoreva, SCh = Sergey V. Chesnokov, AP = Alexander G. Paukov, AT = Andrei Tsurykau, JG = Julia V. Gerasimova. Results The present paper reports one species, Stictis mollis, as new to Russia. In addition, Acarospora normanii, Cladonia monomorpha and Polysporina subfuscescens are new for the European part of Russia (ER), and Reconditella physconiarum is new for CER. A further twenty-one species are known from one or two localities in the central part of European Russia. Brief comments about geographic distribution, and morphological differences from similar taxa, are presented. Species new to Russia, European Russia (ER) or Central European Russia (CER) Acarospora normanii H.Magn. This species, like other C-negative, brownish taxa in the genus, may be misidentified as Acarospora nitrophila H. Magn. (Knudsen & Kocourková 2017). The keys in Magnusson (1929) and Muchnik et al.: Lichenized and lichenicolous fungi from Central European Russia 113 Golubkova (1988) use colour of the lower surface as one of the characters of this species, but it is hardly applicable to A. normanii because of its firmly attached areoles. The iodine reaction of apothe- cial sections, along with a continuous algal layer, distinguishes this taxon from similar-looking species. Acarospora normanii is known in Russia from southern Siberia (Urbanavichus 2010) and reported here as new to ER. Specimen examined: Ryazan oblast, Sasovskiy region, 54°24'2.7''N/41°54'36.7''E, near Temgenevo village, Nature Monument “Temgenevskiye izvestnyaki”, old bridge, on brickwork (together with Candelariella aurella, Myriolecis hagenii), 02.06.2010, leg. EM and LK, det. AP (LE L-15026) The studied specimen has a brown, areolated, non-lobate, C-negative thallus (Fig. 1). Areoles close- standing or dispersed, 0.5 –1 mm in diameter, matte, moderately convex, firmly attached to the subs- trate, not forming a stipe and a lower surface, epruinose or with light pruina. Algal layer continuous. Apothecia 1–3 per areole, not exceeding the thallus height, with an indistinct thalline margin. Disc brown, 0.2– 0.5 mm. Hymenium 80 –100 µm, hemiamyloid, J+ reddish, subhymenium amyloid, J+ blue. Cladonia monomorpha Aptroot, Sipman & Herk New to ER. The species was recently reported from Yamal and Mammoth Peninsulas in the Russian Asian Arctic (Golubkov & Tsurykau 2017). Cladonia monomorpha was recently described from Europe based on its morphology (Aptroot et al. 2001), but its status is still unclear and needs additi- onal study (see Kowalewska & Kukwa 2004, Kowalewska et al. 2008, Ahti & Stenroos 2013). Specimen examined: Kaluga oblast, Kozelskiy region, 54°0'47.7''N/35°52'54''E, National Park “Ugra”, near Sosenka village, slope of a sand dune, on soil, 08.06.2018, leg. Yu. A. Semenishchenkov, det. AT, TLC 208-12: fumarprotocetraric acid (LE L-15030) Polysporina subfuscescens K.Knudsen & Kocourk. [=P. sinensis (H.Magn.) N.S.Golubk.] New to ER. Polysporina subfuscescens is a lichenicolous fungus that grows on thalli of Acarospora spp. It occurs in Asia, Europe and North America (Knudsen & Kocourková 2008). This species was previously recorded in Russia from Southern Siberia (Sedelnikova 2013) and North Caucasus (Ismailov & Urbanavichus 2013). Polysporina subfuscescens is probably a widely distributed ta- xon in Central Russia because it was misidentified earlier as P. lapponica (Ach. ex Schaer.) Degel. According to Urbanavichus (2010), P. lapponica also occurs in CER. Specimen examined: Voronezh oblast, Anninskiy region, near Verkhniy Karachan village, 51°24'56''N/41°47'23''E, high bank of Sukhoy Karachan river, on the thallus of Acarospora fuscata