Click to increase image sizeClick to decrease image size AcknowledgementsL.T. Ellis acknowledges the support of The Natural History Museum, London (BM). D. García-Avila thanks to Coordinación de la Investigación Científica (CIC) at Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) and PROMEP (PTC-269) for the financial support for research on Bryophytes and for lab equipment. The work of I.V. Czernyadjeva was carried out within the framework of the institutional research project (no. 121021600184-6) of the Komarov Botanical Institute of the Russian Academy of Sciences. The study by E.A. Ignatova was supported by Lomonosov Moscow State University reserarch project no. 121032500090-7.L. Söderström, B. Cañiza and T. Pócs thank Lars Hedenäs for information about possible specimens in S, Katarina Stenman for making specimens in UME available, and Lil Stevens and Len Ellis for information on type material in BM.B. Espinoza-Prieto and J. J. Atwood thank Jennifer Kluse at the Shirley C. Tucker Herbarium (LSU) at Louisiana State University for providing the specimen loan. B. Espinoza-Prieto thanks the Center for Conservation and Sustainable Development of the Missouri Botanical Garden for funding through the Alwyn H. Gentry Fellowship and Steve Churchill (MO) for funding bryological exploration in central Peru through the Andean Bryophytes project; also thanks to Servicio Nacional Forestal (SERFOR, Ministry of Agriculture and Irrigation, Peru) for providing collection permits N°182-2018-MINAGRI-SERFOR-DGGSPFFS. W.R. Alvaro Alba acknowledges the Herbario Amazónico Colombiano (COAH), especially Nicolás Castaño and Wilson Rodriguez, for allowing access to the collection of non-vascular plants.The study by E. Yu. Kuzmina was carried out within the framework of the basic projects theme of the laboratory of lichenology and bryology of Komarov Botanical Institute RAS (“Flora of lichens and bryophytes of Russia and phytogeographically important regions”) № 121021600184-6. The study of E.A. Glazkova was carried out within the framework of the research project no. АААА-А 19-119031290052-1 (Vascular plants of Eurasia: systematics, flora, plant resources) of the Komarov Botanical Institute RAS. The field investigations of E.A. Glazkova were supported by the Complex Expedition “East Bastion — Kuril Ridge” of the Russian Geographical Society and the Expedition Center of the Russian Federation, and she thanks the organisers and all participants of the expedition. S. Ștefănuț acknowledges the support by project no. RO1567-IBB03/2022 through the Institute of Biology Bucharest of Romanian Academy. M. Burghardt acknowledges that his collection of Prionolejeunea clementinae was made under investigation permit 003-2018-IC-FLO-DPAP-MA of the Ecuadorian Ministry of Environment.V. Hugonnot thanks Heribert Köckinger for checking material of Tortella mediterranea. V. Sahu and A. K. Asthana are grateful to the Director, CSIR-National Botanical Research Institute for encouragement and providing the research facilities and to the forest department officials of Madhya Pradesh for kindly permitting the study area. Financial assistance from the CSIR under the project MLP 0042 is also thankfully acknowledged. These authors also thank the institutional ethics committee for granting institutional MS number CSIR-NBRI_MS/2022/11/02. J. J. Atwood acknowledges partial support from the U.S. National Science Foundation (Grant DEB 1655479).

Md N. Aziz, V. A. Bakalin , G. Bergamo Decarli, M. Boiko, N. Zagorodniuk, L. M. Boiko, E. A. Borovichev, G. Brusa, M. J. Cano, J. A. Jiménez, S. S. Choi, I. Draper , F. Lara, M. V. Dunlin, J. Enroth, T. Ezer, V. E. Fedosov, E. Fuertes, R. Garilleti , B. Albertos , S. R. Gradstein, A. Graulich, V. Hugonnot, C. W. Hyun, M. Kırmacı, F. Filiz, U. Çatak, N. A. Konstantinova, A. N. Savchenko, M. Kropik, J. Kučera, H. Kürschner, E. Yu. Kuzmina, N. S. Liksakova, D. Maity, P. Martin, T. T. McIntosh, H. M. H. van Melick, B. Moncada, Cs. Németh, S. V. O’Leary, G. F. Peñaloza-Bojacá, S. A. Maciel-Silva, S. Poponessi, A. Cogoni, R. D. Porley, A. D. Potemkin, M. Puglisi, S. Sciandrello , K. K. Rawat, V. Sahu, R. R. Paul, M. Ryan, P. Saha, D. S. Salas, J. G. Segarra-Moragues, F. Sguazzin, N. R. Shafigullina, J. R. Shevock, S. Ștefănuţ, A. Uygur, S. Karaman Erkul, S. Ursavaş, A. Özen, H. G. Zechmeister and R. H. Zander

During study on the family Mniaceae in Darjeeling and its neighbouring areas, three genera and six species (Mnium lycopodioides, Orthomnion bryoides, Plagiomnium acutum, P. confertidens, P. rhynchophorum and P. succulentum) have been identified. Of these Plagiomnium acutum is reported here for the first time from eastern Himalaya. A detailed morpho-taxonomic account of these species with their current status and a key to all the taxa of family Mniaceae in Darjeeling is provided here.

1. Aulacopilum glaucum WilsonContributors. P. Srivastava, V. Sahu and A. K. AsthanaIndia. Manipur, Imphal, Bishnupur, Leimaram, near Sadu Chiru Falls, 24°44′21.3″N, 093°44′56.3″E, epiphytic, 1111 m...

L. T. Ellis, L. A. Amélio, D. F. Peralta, M. Bačkor, E. Z. Baisheva, H. Bednarek-Ochyra, M. Burghardt, I. V. Czernyadjeva, S. S. Kholod, A. D. Potemkin , A. Erdağ, M. Kırmacı, V. E. Fedosov, M. S. Ignatov, D. E. Koltysheva, J. R. Flores, E. Fuertes, M. Goga, S.-L. Guo, W. K. Hofbauer, M. Kurzthaler, H. Kürschner, O. I. Kuznetsova, M. Lebouvier, D. G. Long, Yu. S. Mamontov, K. M. Manjula, C. N. Manju, B. Mufeed, F. Müller, M. C. Nair, M. Nobis, N. Norhazrina, M. Aisyah, G. E. Lee, M. Philippe, D. A. Philippov, V. Plášek, Z. Komínková, R. D. Porley, Yu. A. Rebriev, M. S. Sabovljević, A. M. de Souza, E. B. Valente, D. Spitale, P. Srivastava, V. Sahu, A. K. Asthana, S. Ştefănuţ, G. M. Suárez, A. A. Vilnet, K.-Y. Yao and J.-Ch. Zhao The Natural History Museum, Cromwell Road, London, SW7 5BD, UK; Instituto de Botânica, São Paulo, Brazil; Department of Botany, Institute of Biology and Ecology, Pavol Jozef Šafárik University, Košice, Slovakia; Ufa Institute of Biology, Subdivision of Ufa Federal Research Centre of Russian Academy of Sciences, Ufa, Russia; W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków, Poland; Carrera de Ingeniería Agroindustrial y Alimentos, Facultad de Ingeniería y Ciencias Agropecuarias, Universidad de Las Américas, Pichincha, Ecuador; Komarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg, Russia; Aydın Adnan Menderes Üniversitesi, Kepez-Aydin, Turkey; Lomonosov Moscow State University, Russia; Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland; Departamento de Biodiversidad, Ecología y Evolución, Universidad Complutense, Madrid, España; Institute of Biology and Ecology, Pavol Jozef Šafárik University, Košice, Slovakia; Core Facility Cell Imaging and Ultrastructure Research, University of Vienna, Vienna, Austria; East China Normal University, Shanghai, People’s Republic of China; Fraunhofer-Institut für Bauphysik IBP, Holzkirchen, Germany; Freie Universität Berlin, Institut für Biologie, Systematische Botanik und Pflanzengeographie, Berlin, Germany; Tsitsin Main Botanical Garden, Russian Academy of Sciences, Moscow, Russia; CNRS UMR 6553, Université de Rennes 1, France; Royal Botanic Garden Edinburgh, Edinburgh, UK; Botanical Garden-Institute, Far Eastern Branch of Russian Academy of Sciences, Vladivostok, Russia; PG & Research Department of Botany, The Zamorin’s Guruvayurappan College, Kozhikode, Kerala, India; Institut für Botanik, Technische Universität Dresden, Dresden, Deutschland; PG & Research Department of Botany, Govt. Victoria College, Palakkad, Kerala, India; Jagiellonian University, Kraków, Poland; Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia; Université Lyon-1 et UMR CNRS 5023 ‘Ecologie des Hydrosystèmes Naturels et Anthropisés’, Villeurbanne, France; Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Yaroslavl Region, Russia; University of Ostrava, Ostrava, Czech Republic; Cera dos Pomares, Aljezur, Portugal; Southern Scientific Center of the Russian Academy of Sciences, Rostov-on-Don, Russia; Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Belgrade, Serbia; Departamento de Biologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA—Brazil; MuSe Museo delle Scienze, Corso del Lavoro e della Scienza, Trento, Italy; Bryology Laboratory, CSIR–National Botanical Research Institute, Lucknow, India; Institute of Biology Bucharest of Romanian Academy, Bucharest, Romania; Unidad Ejecutora Lillo (UEL; FML-CONICET), Miguel Lillo 251, (4000) S.M. de Tucumán, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, Miguel Lillo 205, (4000) S.M. de Tucumán, Argentina; PolarAlpine Botanical Garden, Kola Science Centre, Russian Academy of Sciences, Murmansk Province, Russia; Endemic Species Research Institute, Nantou, Taiwan; Hebei Normal University, Shijiazhuang, People’s Republic of China

1. Asterella chilensis (Nees & Mont.) A.EvansContributors. P. Drapela, J. R. Flores and G. M. SuarezUruguay. Rivera. Tranquera, 31°09'56.2″S, 55°46'41.0″W, 175 m a.s.l., 27 February 2012, leg. G. S...

1. Afoninia dahurica Ignatova, Goffinet & FedosovContributors. D. Ya. Tubanova and O. D. DugarovaRussia. Republic of Buryatia: Zakamenskiy District, Dzhidinskiy Ridge, about 10 km to SSE of Mikhayl...

1. Anomobryum bavaricum (Warnst.) Holyoak & KӧckingerContributors: G. Ya. Doroshina and I. V. CzernyadjevaRussia: Caucasus, Republic of North Osetiya, canyon of Fiagdon River, 42°58′N, 43°45′E, 820...

Plants in the collection were scattered among other bryophytes, light green, up to 13 mm long and 1.9 mm wide, with intercalary branching.Underleaves were absent and rhizoids were scattered along the ventral surface.The stems were slender, delicate, round in cross-section and 8-9 cells wide with a single layer of quadrangular, slightly thickened cortical cells and thin-walled medullary cells with indistinct trigones.The leaves were succubous, distant to loosely imbricate, oblong-quadrate, 0.55-0.70× 0.60-0.65 mm, with the ventral lobe larger than dorsal lobe and an acute sinus.Leaf margins were usually entire, but occasionally possessed a few, long, unicellular cilia, and laminal cells were thin-walled with distinct trigones.Those at the margin were quadrangular, whilst the median and basal cells were polygonal.Fertile plants not observed.2. Biantheridion undulifolium (Nees) Konstant.& Vilnet

1. Barbula convoluta Hedw.Contributor: F. MullerDemocratic Republic of the Congo: Province Kivu, Rumangabo 40 km N of Goma, at the eastern base of Nyiragongo volcano, on open soil over volcanic sto...

1. Bartramia patens Brid.Contributors: R. Ochyra and M. LebouvierIles Crozet, Ile de la Possession: (1) Baie du Marin, steep cliff overlooking Crique du Navire, north-east of the Alfred Faure Stati...

Govind Wild Life Sanctuary in the Western Himalayas with its diverse vegetation types provides excellent habitats and microclimates for a lush growth of bryophytes. During investigations on the bryophytes of this region Plagiothecium euryphyllum (Cardot et Thér.) Z. Iwats. and P. cavifolium (Brid.) Z. Iwats. have been identified for the first time from India. P. euryphyllum is characterised by bright green to yellowish green plants, irregularly branched, complanate. Central strand developed. Leaves erectopatent, imbricate, ovate oblong, margin entire, acute to acuminate at apex, costa two forked, decurrent with hyaline, rectangular cells. Seta reddish, capsule erect to inclined, while plants of P. cavifolium are yellowish green, glossy, prostrate, irregularly branched, branches julaceous. Leaves appressed to stem, closely imbricate, erectopatent, ovate lanceolate, symmetrical, margin minutely dentate at apex, cells at alar region rectangular costa two short. Seta reddish brown, capsule erect, pyriform. A morpho-taxonomic account of above two taxa is provided.

1. Anastrophyllum hellerianum (Lindenb.) R.M.Schust.Contributors: D. A. Callaghan and M. LuthPortugal: 1 km south of Mata da Albergaria, Peneda-Geres National Park, Braga District, 41°45′38″N, 8°8′...