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Two new for science species of lichenicolous fungi, i.e. Lichenochora hypanica and Pyrenidium ucrainicum are described and illustrated, comparing with closely related taxa. The following taxa, i.e. Biatorella fossarum, Buelliella lecanorae, Echinothecium reticulatum, Lecanora pannonica, Melaspilea bagliettoana, and Opegrapha verrucariae are reported for the first time for Ukraine.

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Descriptions for 5 Caloplaca species new for science (C. chejuensis S. Y. Kondr. et J.-S. Hur, Caloplaca coreana S. Y. Kondr. et J.-S. Hur, C. galbina S. Y. Kondr. et J.-S. Hur (all from Korea), C. loekoesii S. Y. Kondr. et J.-S. Hur (from Korea and China), and C. safavidiorum S. Y. Kondr. et B. Zarei-Darki (from Iran)), as well as descriptions of 3 rediscovered species (Caloplaca diffluens (Hue) Zahlbr. (from Korea and China), C. multicolor (Hue) S. Y. Kondr. et J.-S. Hur, and C. spodoplaca (Nyl.) Zahlbr. (both from Korea), which were described from Korea and Japan more than one century ago and not recorded from that time), including diagnostic characters important for the present taxonomy of the genus Caloplaca s. l., are provided. The new combination, Caloplaca multicolor (Hue) S. Y. Kondr. et J.-S. Hur (Basionym: Lecidea multicolor Hue), is proposed.

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Acta Botanica Hungarica
Authors: S. Kondratyuk, L. Lőkös, S. Tschabanenko, I. Skirina, I. Galanina, S.-O. Oh, and J.-S. Hur

Four new for science species, i.e. Caloplaca kedrovopadensis, Lecanora ussuriensis, Ochrolechia yurii, Oxneria ussuriensis (all from Russian Far East) are described, compared with closely related taxa, and illustrated. Micarea coreana is for the first time recorded from Russia.

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From the combined phylogenetic analysis of multi-locus sequence data of the Lecanoraceae including two nuclear protein-coding markers (RPB2 and RPB1), the internal transcribed spacer and a fragment of the mitochondrial small subunit, found that the originally monotypic eastern Asian genus Verseghya is positioned within the Verseghya-Lecidella-Pyrrhospora clade of the Lecanoraceae and includes one more taxon Verseghya thysanophora widely distributed in Northern Hemisphere.

The genus Lecidella forming the Lecidella-Glaucomaria subclade within the same Verseghya-Lecidella-Pyrrhospora clade of the Lecanoraceae found to have tendency to be polyphyletic after including the recently described eastern Asian taxon Lecidella mandshurica into phylogenetic analysis of the Lecanoraceae. It is shown that Lecidella mandshurica was previously recorded from China sub Lecidella aff. elaeochroma.

The originally monotypic eastern Asian genus Sedelnikovaea forming a monophyletic branch within the Sedelnikovaea-Lecanoropsis subclade and being in out-position to the Rhizoplaca-Protoparmeliopsis s. str. clade of the Lecanoraceae found to include three more taxa, i.e. Sedelnikovaea marginalis, S. pseudogyrophorica, and S. subdiscrepans.

The Eurasian Protoparmeliopsis bolcana, and the eastern Asian P. kopachevskae, are illustrated for the first time as being positioned within the Protopameliopsis branch of the Lecanoraceae, while the South Korean ‘Protoparmeliopsis’ chejuensis found to be positioned in separate monophyletic branch from all other branches of the Rhizoplaca-Protoparmeliopsis s. l. clade of the Lecanoraceae.

The genus Polyozosia A. Massal. as earlier name for the former Myriolecis branch of the Lecanoraceae is accepted as far the type species of the latter genus, i.e. P. poliophaea, found to be positioned within this branch. The Polyozosia robust monophyletic branch is positioned in the outermost position in the Rhizoplaca-Protoparmeliopsis s. str. clade of the Lecanoraceae.

Position and species content of the accepted genera Glaucomaria, Lecanoropsis, Omphalodina, Polyozosia, and Straminella are discussed in separate nrITS and mtSSU, and combined phylogeny based on concatenated sequences of nrITS, mtSSU, RPB2 and RPB1 genes.

Fourty new combinations are proposed: Glaucomaria bicincta, G. carpinea, G. leptyrodes, G. lojkaeana, G. subcarpinea, G. sulphurea, G. swartzii, G. swartzii subsp. caulescens, G. swartzii subsp. nylanderi, Lecanoropsis anopta, L. macleanii, Omphalodina chrysoleuca, O. huashanensis, O. opiniconensis, O. phaedrophthalma, O. pseudistera, Palicella anakeestiicola, Polyozosia albescens, P. andrewii, P. contractula, P. crenulata, P. dispersa, P. hagenii, P. perpruinosa, P. populicola, P. pruinosa, P. reuteri, P. sambuci, P. semipallida, P. straminea, P. thuleana, Sedelnikovaea marginalis, S. pseudogyrophorica, S. subdiscrepans, Straminella bullata, S. burgaziae, S. conizaeoides, S. densa, S. maheui, S. varia, and Verseghya thysanophora. Validation of one name as Polyozosia perpruinosa Fröberg ex S. Y. Kondr. L. Lőkös et Farkas is also proposed.

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Acta Botanica Hungarica
Authors: S. Kondratyuk, A. Yatsyna, L. Lőkös, I. Galanina, M. Haji Moniri, and J.-S. Hur

Two new Xanthoria s. str. species, Xanthoria polessica and X. juniperina, the members of the Xanthoria parietina-group (from Belarus, Ukraine and Russia), and Rusavskia dasanensis (from Norway) are described, as well as compared with closely related taxa. Current position of 47 species of xanthorioid lichens described during the last two decades in 15 different genera of the subfamily Xanthorioideae of the family Teloschistaceae is discussed. Caloplaca herbidella (Arnold) H. Magn. and Telogalla olivieri (Vouaux) Nik. Hoff. et Hafellner are for the first time recorded for Belarus.

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Results of bryoindication mapping based on calculation of an index of atmospheric purity (IAP) of towns of the Left Bank Ukraine, i.e. the smallest Romny (Sumy oblast) and Myrhorod (Poltava oblast) towns, small Pryluky (Chernihiv oblast) and Lubny (Poltava oblast) towns as well as medium size Poltava town (Poltava oblast), are provided. It is found that isotoxic bryoindication zones of moderately polluted air are predominate and often forming entire areas in the centre / industrial / densely built-up areas of Poltava, Lubny and Pryluky towns while isotoxic zones with slightly polluted or unpolluted air are predominant or more widely distributed in smaller towns Romny and Myrhorod. Correlation of data on species diversity, community composition of bryophytes as well as data of the IAP zoning of the territory of all towns mentioned as well as natural conditions of their territory and anthropogenic pressure is discussed.

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Acta Botanica Hungarica
Authors: S. Kondratyuk, M.-H. Jeong, N.-H. Yu, I. Kärnefelt, A. Thell, J. Elix, J. Kim, A. Kondratyuk, and J.-S. Hur

Four new monophyletic groups are found within the teloschistoid clade of the subfamily Xanthorioideae in the Teloschistaceae using nuclear (ITS1/ITS2) and mitochondrial (12S mtSSU gene) DNA sequences. These groups are proposed as new genera: Brownliella gen. nova for the widely distributed Caloplaca cinnabarina group, Filsoniana gen. nova for the Australian Caloplaca australiensis group, Fulgogasparrea gen. nova for the Western Pacific species Caloplaca decipioides, and Kaernefia gen. nova for the Southern Hemisphere Caloplaca kaernefeltii group. Massalongo’s genus Niorma is resurrected for the Teloschistes hypoglaucus group.

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Acta Botanica Hungarica
Authors: S. Kondratyuk, L. Lőkös, S. Tschabanenko, M. Haji Moniri, E. Farkas, X. Wang, S.-O. Oh, and J.-S. Hur

Seventeen taxa new for science, i.e. Absconditella baegasanensis, Caloplaca hallasanensis, C. subconcilians, Fellhanera chejuensis, F. maritima, Lecania coreana, L. rinodinoides, Lichenostigma heterodermiae, Micarea coreana, Phoma heterodermiae, Protoparmeliopsis chejuensis, Roselliniopsis phaeophysciae, Topelia jasonhurii (all from South Korea); Caloplaca dzhankoiensis (from Ukraine); Protoparmeliopsis pseudogyrophoricum (from China); P. taranii (from Russia); and Seirophora blumii (from several Central Asian countries) are described, compared with closely related taxa, and illustrated.Five new combinations are proposed: Caloplaca subscopularis, Protoparmeliopsis crustaceum, P. gyrophoricum, P. mazatzalensis, and P. pinguis.A total of 64 lichen-forming and lichenicolous fungi are reported here as new for South Korea (i.e. Abrothallus microspermus, Amandinea melaxanthella, Arthonia epiphyscia, Arthothelium ruanum, Aspicilia contorta subsp. hoffmanniana, Biatora globulosa, Brigantiaea purpurata, Caloplaca gordejevii, C. micromera, C. oxneri, C. subscopularis, C. trassii, Candelariella reflexa, Dirina massiliensis, Endococcus cf. verrucosus, Hyperphyscia adglutinata, Hypogymnia austerodes, H. occidentalis, Ionaspis lacustris, Lecanora barkmaniana, Lecanora cf. marginata, L. symmicta, L. varia, Lichenochora obscuroides, Lichenodiplis lecanorae, Lopadium coralloideum, Melaspilea bagliettoana, Menegazzia subsimilis, Micarea denigrata, M. peliocarpa, Myriospora heppii, Myriotrema masonhalei, Ochrolechia frigida, Opegrapha calcarea, O. phaeophysciae, Parmelia subdivaricata, Pertusaria aff. alpinoides, P. commutans, P. ophthalmiza, P. sphaerophora, P. subcomposita, Phlyctis aff. argena, Physconia hokkaidensis, Porina farinosa, Punctelia subrudecta, Pyrenula balia, P. castanea, P. laevigata, P. neojaponica, Rhizocarpon badioatrum, Rinodina fimbriata, R. oleae, R. polyspora, R. pyrina, R. sophodes, R. teichophila, Scoliciosporum chlorococcum, Sphinctrina tubaeformis, Stigmidium fuscatae, Taeniolella phaeophysciae, Thelotrema nipponicum, Toninia aromatica, Topeliopsis aff. azorica, and Trypethelium indutum); and two new for China (i.e. Caloplaca bassiae, Lecania rabenhorstii). Detailed locality data and annotations are given for further 22 noteworthy species, which are rare in South Korea (i.e. Agonimia opuntiella, Agonimiella pacifica, Amandinea punctata, Biatora longispora, Brigantiaea ferruginea, Caloplaca squamosa, Chrysothrix candelaris, Coenogonium luteum, Diploschistes actinostomus, Hyperphyscia crocata, Leucodecton desquamescens, Menegazzia nipponica, Pertusaria commutata, P. multipuncta, P. quartans, P. submultipuncta, P. aff. subobductans, P. velata, Phaeophyscia orbicularis, Porina leptalea, Pyrenula pseudobufonia, and Trapelia coarctata); and for two species rare in China (i.e. Buellia badia, Letrouitia transgressa).

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The new genus Kashiwadia S. Y. Kondr., L. Lőkös et J.-S. Hur, gen. nov. for the Eastern Asian species Physcia orientalis Kashiw. being in isolated position in the genus Physcia after morphological and anatomical characters as well as showing closer relation to the Heterodermia branch (than to the Physcia branch) in phylogenetic tree of the Physciaceae based on results of ITS1/ITS2 nuclear ribosomal and positioning in separate branch after 12S SSU mitochondrial DNA sequences and combined data set is proposed. Description of new genus and new combination is provided.

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Involucropyrenium breussii A. B. Gromakova et S. Y. Kondr., a new lichen species for science, is described from eastern Ukraine, illustrated and compared with closely related taxa. It is similar to I. tremniacense from which it differs in having smaller thalline areoles, narrower rhizohyphae, a medullary layer differentiated in the centre of areoles, and longer ascospores. A short description of plant communities in which Involucropyrenium breussii was found in Ukrainian steppes with chalk outcrops is provided.

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