Knudsen, K. & Kocourková, J. 2020: Two poorly-known species of European Acarospora (Acarosporaceae). – Herzogia 33:1 – 8.

The European species Acarospora franconica and Acarospora helvetica are revised. Acarospora franconica is a lowland species of central Europe collected on sandstone and volcanic rock. It is reported as new for the Czech Republic. Acarospora helvetica is a montane species which occurs on basic and intermediate siliceous rock. Acarospora helvetica was described and reported from Switzerland and France by A. H. Magnusson and is reported new for Austria, Greece, Italy and Germany. Lectotypes are designated for A. austriaca, A. franconica and A. helvetica. Acarospora austriaca is a synonym of A. helvetica.

Kossowska, M. & Szczepańska, K. 2020. Lichenized and lichenicolous fungi of basaltoid rocks in Lower Silesia (SW Poland). – Herzogia 33: 9 –24.

We present the results of lichenological studies conducted on 12 natural and anthropogenic outcrops of basaltoid rock within four physiogeographical units (mesoregions) of the Sudety Mountains and their foothills. In total, 92 taxa of lichens and six of lichenicolous fungi were recorded. The basaltoid rocks turned out to be a refuge for lichen biodiversity, including a number of rare and in Poland endangered species, e.g. Caloplaca chlorina, C. subpallida, Lasallia pustulata, Lecanora orosthea, L. pannonica, L. subaurea, Ramalina capitata, Rhizocarpon geminatum, Rimularia furvella and Stereocaulon pileatum. In the four analysed mesoregions, the lichen biota of basaltoid rocks were quite homogeneous with Sørensen-Dice similarity coefficients ranging from 53 to 68 %. However, individual mesoregions differed in the overall number of lichens, species composition and the number of exclusive species. Among the most frequent taxa, there was a distinct group which includes species that are characteristic for either neutral to basic substrata (Lecidella scabra) and mineral- or metal-rich rocks (Caloplaca subpallida, Lecanora rupicola, Lecidea fuscoatra, Rhizocarpon distinctum). These species, together with Trapelia placodioides, were present in all four mesoregions and may be considered typical for Lower Silesian basaltoids.

Nagy, J., Németh, Cs., Dima, B. & Papp, V. 2020. Lichenomphalia meridionalis, an agaricoid basidiolichen species new to Central Europe. – Herzogia 33: 25 –33.

A new finding of the agaricoid basidiolichen, Lichenomphalia meridionalis is reported from Hungary (Central Europe). This species was originally known only from the Mediterranean regions of Europe, but recently it has also been found in Japan. The nrITS and nuLSU (28S) rDNA sequences, macro- and, microscopical characteristics and photographs of the Hungarian specimen are given.

Himelbrant, D., Stepanchikova, I., Korolev, K., Motiejūnaitė, J. & Petrenko, D. 2020. Forty species of lichens, lichenicolous and calicioid fungi new for the Kaliningrad region (former Ostpreußen) with additional noteworthy records. – Herzogia 33: 34–56.

The most important results of lichenological fieldwork in the northern part of the Kaliningrad region (former Ostpreußen), conducted in 2019, are reported. Forty species are new to the Kaliningrad region, of which Fuscidea lightfootii and Xanthoparmelia mougeotii are also new to Russia. Jamesiella anastomosans and Reichlingia leopoldii were otherwise known in Russia only from the Caucasus. Also treated are another sixteen species which are rare or protected in the region, or are indicators of biologically valuable forests. The most diverse and valuable fraction of the lichen diversity in the northern part of the Kaliningrad region was observed in the remnants of old-growth Norway spruce-broadleaved, broadleaved, and black alder forests, as well as in old-growth broadleaved alleys and manor parks.

Gheza, G., Ottonello, M., Nascimbene, J. & Mayrhofer, H. 2020. The genus Cladonia in western Liguria (Northern Italy). – Herzogia 33: 57– 67.

The genus Cladonia (Cladoniaceae, Lecanorales, lichenized Ascomycota) has been surveyed in 44 sites in the province of Imperia in western Liguria. Of 36 taxa recorded, Cladonia dimorpha and C. pseudopityrea are new to northern Italy, and C. cryptochlorophaea, C. pleurota, C. polydactyla and C. rei are new to Liguria; interesting are also records provided for C. arbuscula, C. incrassata and C. mediterranea. The most widespread species are C. chlorophaea, C. pyxidata, C. ramulosa and C. rangiformis. Data on ecology and chemistry of the species are given.

Christensen, S. N. 2020. New or rarely reported lichens for Thraki, Greece II. – Herzogia 33: 68 –74.

Thirty-eight species are reported from Thraki, of which Thyrea girardii is new to Greece, and 25 are new to Thraki. Lichens on Alnus glutinosa in Greece are reported for the first time.

Christensen, S. N. 2020. Lichens of Pinus sylvestris stands in Makedonia and Thraki, Northern Greece. – Herzogia 33: 75 – 89.

The species composition and phytogeography of 66 species recorded from Pinus sylvestris stands are briefly discussed. Bryoria furcellata, Cliostomum griffithii, Fuscidea cyathoides and Lecidea nylanderi are new to Greece, nine species are new to the province of Makedonia and eleven are new to Thraki.

Borgato, L., Fryday, A. M. & Ertz, D. 2020. Preliminary checklist of the lichens and lichenicolous fungi of Martinique, with 144 new records. – Herzogia 33: 139 –178.

Martinique is a French island that is part of the Lesser Antilles archipelago in the Caribbean Sea. A preliminary checklist of the lichens and lichenicolous fungi known from this island is published for the first time. We report 247 lichens and four lichenicolous fungi, among which 87 taxa were already recorded in literature reports, whereas 144 additional species are here reported for the first time from studies of the collections stored in the herbaria of the Michigan State University (MSC) and the Meise Botanic Garden (BR), or from the databases of the herbaria of the Duke (DUKE) and Uppsala (UPS) universities. Arthonia arthoniicola is reported for the first time from the Neotropics. An additional 16 species from the same collections, for which the identification is uncertain, are also mentioned.

Urbanavichus, G., Vondrák, J., Urbanavichene, I., Palice, Z. & Malíček, J. 2020. Lichens and allied non-lichenized fungi of virgin forests in the Caucasus State Nature Biosphere Reserve (Western Caucasus, Russia). – Herzogia 33: 90 –138.

We report on 659 epiphytic and epixylic species recorded from seven one-hectare plots established along an altitudinal gradient in a virgin forest of the Caucasus State Nature Biosphere Reserve. A total of 564 species are lichens, 61 are lichenicolous fungi and 34 are allied non- or facultatively lichenized fungi. one hundred forty – nine species (116 lichens, 17 lichenicolous and 16 saprophytic fungi) are new to the Northern Caucasus, including 133 species (104 lichens, 15 lichenicolous and 14 saprophytic fungi) that are new to the Caucasus Mountains. Fifty species are reported from Russia for the first time: 37 lichens (Andreiomyces obtusaticus, Bacidina mendax, Biatora aegrefaciens, B. bacidioides, B. chrysanthoides, Biatorella dryophila, Buellia iberica, Cliostomum haematommatis, Endohyalina ericina, Fellhanera christiansenii, Gyalidea minuta, Japewia aliphatica, Lecanora barkmaniana, L. subravida, Lecidea strasseri, Leptogium hibernicum, Lithothelium hyalosporum, L. phaeosporum, L. septemseptatum, Loxospora cristinae, Melanelixia epilosa, Micarea nowakii, M. perparvula, Opegrapha trochodes, Orcularia insperata, Parvoplaca servitiana, Phylloblastia inexpectata, Psoroglaena stigonemoides, Ptychographa xylographoides, Ramonia dictyospora, R. luteola, Rinodina polysporoides, Thelopsis flaveola, Topelia jasonhurii, Verrucaria hegetschweileri, Wadeana minuta, Waynea giraltiae), nine lichenicolous fungi (Arthonia vorsoeensis, Didymocyrtis melanelixiae, Epigloea urosperma, Muellerella polyspora, Phacographa zwackhii, Pronectria pilosa, Rhymbocarpus pubescens, Taeniolella friesii, Unguiculariopsis acrocordiae) and four non-lichenized saprophytic fungi (Cyrtidula major, Karschia cezannei, Kirschsteiniothelia recessa, Pseudotryblidium neesii).

The ratio of macrolichens ranges between 26.5 – 40 % and rises with elevation. Lichens with a trentepohlioid photobiont are represented by 15 –51 species per plot and their species richness decreases with elevation. The species richness of cyanolichens is substantial in all plots (15 –28 species) reflecting a negligible effect of acidification/air pollution. Low species richness and low abundances of nitrophilous species indicate insignificant uptake of nitrogen emissions. Beech and fir are the most preferred phorophytes, but the vast majority of lichen species have low substrate specificity. Species richness per plots ranged between 236 and 379. The highest richness was found in a plot outside the Caucasian Reserve and we recommend its inclusion into the protected area.

Berg, C. & Pöltl, M. 2020. Spore development during capsule maturation of three Riccia species. – Herzogia 33: 179 –187.

Ricciaspores develop during sporophyte growing and maturation. In young capsules, the spores have not yet archived their final size, color and ornamentation. These are important features for the determination. We ask, at which stage of development the spores show their final features, and how bryologists can recognize this. With the help of light microscope photography, we measure and describe spores taken from young, mature and open capsules. Young capsules exhibit a lighter color and do not bulge above the thallus surface. Riccia-spores reach their final size, ornamentation and color in mature capsules. Mature capsules are mostly dark, and bulge above the thallus surface. They remain globose after drying as herbarium specimens. According to our study, the spores of such capsules show the same final features as spores in open capsules. They are suitable to measure spore size and examine the characteristic ornamentation and color of the exospore.

Hugonnot, V. 2019. New ecological and distributional data on Lewinskya shawii in France and its conservation in anthropogenic environments – Herzogia 33: 188 –206.

Lewinskya shawii is a southern and Central European and Mediterranean species occurring disjunctly in western North America. It has large populations in the Massif Central and Auvergne region, France, where numerous new localities are herein reported. Its national distribution in France is therefore updated. The ecology of the species was studied by analysing recent relevés performed on a variety of phorophytes, mostly ash (Fraxinus excelsior) and beech (Fagus sylvatica). Lewinskya shawii occurs in urban and non-urban habitats, but to a large extent on well-illuminated trees in the open countryside, where it can be associated with rich epiphytic assemblages. Such trees are mostly pollards with Orthotricha growing abundantly on the trunk. In Auvergne, the anthropogenic environment is considered to be favourable to epiphytic Orthotricha s.l. It is suggested that light is a key factor for epiphytic assemblages in urban environments. Preliminary recommendations for the conservation of Lewinskya shawii and associated Red-Listed bryophytes in the small towns of Auvergne are given. Traditional management activities are considered capable of maintaining highly diverse epiphytic assemblages.

Zechmeister, H. G., Kropik, M., Schachner, H. & Hagel, H. 2020. Bemerkenswerte Neufunde von Moosen in Niederösterreich sowie zwei Erstnachweise für Österreich. – Herzogia 33: 207–224.

Niederösterreich ist das größte Bundesland Österreichs. Im Übergangsbereich von drei biogeographischen Regionen gelegen, beherbergt es eine äußerst diverse Moosflora, die in umfangreichen historischen Arbeiten dokumentiert wurde. Einzelne Regionen fanden jedoch kaum Beachtung. Erst in den letzten zwei Jahrzehnten wurde das Bundesland bryologisch wieder intensiver untersucht. An dieser Stelle präsentieren und diskutieren wir eine Auswahl bemerkenswerter Moosfunde aus dem Zeitraum 2017 bis 2019: den Erstfund der zwei Arten Cryphaea heteromalla und Orthodontium lineare für Österreich; den Wiederfund der beiden Arten Orthotrichum urnigerum und Riccia frostii nach über einem Jahrhundert; den Fund von sieben Arten, die neu für Niederösterreich sind (Calliergon richardsonii, Dicranella grevilleana, Obtusifolium obtusum, Orthotrichum dentatum, Orthotrichum rogeri, Schljakovia kunzeana, Syntrichia subpapillosissima) sowie den Wiederfund der fünf Arten Crossocalyx hellerianus, Geocalyx graveolens, Hypnum callichroum, Racomitrium lanuginosum, Scapania irrigua subsp. irrigua, die in Niederösterreich bislang als verschollen galten. Für 28 gefährdete oder sehr seltene Arten werden neue Fundpunkte angeführt, einige der Angaben sind auch Neufunde für eine der biogeographischen Großregionen des Bundeslandes.

Blockeel, T. L. 2020. The bryophyte flora of the island of Kythera, Greece. – Herzogia 33: 225 –239.

A list of bryophytes from the Greek island of Kythera is presented, based on a field survey in March 2019. A total of 113 taxa were identified from the collections. Cephaloziella calyculata is reported for the second time in Greece, and other notable records include Clevea spathysii, Frullania calcarifera, Bryum cellulare, Campylopus brevipilus, Campylostelium pitardii and Entosthodon obtusus. Seventeen taxa are newly reported for the Peloponnese floristic region of Greece.

Feng, C., Kou, J., Wu, T.-T., Wang, Z. & Xiao, H.-X. 2020. Encalypta pilifera new to China and range extension of two rare species. – Herzogia 33: 240 –247.

The Tibetan and Guizhou Plateaus are characterised by great differences in elevation, complex terrains and diverse climate, and they harbour rich bryofloras. During a short excursion in Guizhou Province and Tibet in southwestern China, Encalypta pilifera was discovered and its range thereby extended to East Asia (China). In addition, Ptychomitrium mamillosum was found in Tibet and Delongia glacialis in both Tibet and Guizhou Province. These discoveries extend the geographic range of the latter two species. We discuss the differences between them and similar species. Brief morphological descriptions, distributional remarks and photographs of species are provided.

Wu, Y., Tsegmed, Ts., Enkhjargal, E., He, S. & Zhao, D.-P. 2020. New records and rare species of Pottiaceae (Bryophyta) from Mongolia. – Herzogia 33: 248 –256.

Didymodon kunlunensis D.P.Zhao, S.Mamtimin & S.He and the genus Gyroweisia Schimp., with G. yuennanensis Broth., are reported as new records of the Pottiaceae to Mongolia. Didymodon maximus (Syed & Crundw.) M.O.Hill, a rare species for Mongolia, is reported here for the second time. Digital photographs, brief taxonomic comments, and distribution ranges of the two new records and one rare species are provided.

ElMokni, R. & Clerc, P. 2020. Two new N-African records in the genus Usnea (Parmeliaceae, lichenized Ascomycota) from Kroumiria, NW Tunisia. – Herzogia 33: 257–261.

Usnea articulata and U. esperantiana are reported as new to Tunisia. Our recent discoveries constitute further records for the south shore of the Mediterranean. Both records are from mixed oak forests (Quercus canariensis Willd. and Q. suber L.) within the Kroumiria region of NW Tunisia.