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      Lectotypification of the name Stereodon nemoralis Mitt. (Plagiotheciaceae), a basionym of Plagiothecium nemorale (Mitt.) A. Jaeger

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          Abstract

          In 1859, William Mitten described Stereodon nemoralis (≡ Plagiothecium nemorale ) based on the gathering of Sir J.D. Hooker from India. However, the protologue did not indicate any specific specimen or illustration. For the past 50 years, the original material (NY 913349) deposited at the NY Herbarium has been considered as the holotype. However, this assumption has since been found to be incorrect, because in the Herbarium of The Natural History Museum exists other original material of this species (BM 1030713), collected by Hooker. In addition, the specimen from NY Herbarium is in poor condition and its most important diagnostic characters are not visible. In contrast, the material from BM Herbarium is in very good condition, and therefore it is herein designated as the lectotype. Also, the paper describes the resolution of this type, a process complicated by changes that had occurred in the provisions of subsequent botanical Codes.

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          Most cited references11

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          International Code of Nomenclature for algae, fungi, and plants

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            Himalayan journals; or, Notes of a naturalist in Bengal, the Sikkim and Nepal Himalayas, the Khasia Mountains, &c.

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              Resurrection of the Plagiothecium longisetum Lindb. and proposal of the new species— P . angusticellum

              Plagiothecium longisetum was described by Lindberg in 1872, based on Maximowicz materials from Japan. In the 1970s, this species was synonymized with P. nemorale. However, a polyphasic approach applied to the investigation of the P. nemorale sensu lato showed a clear separation between the specimens of former P. longisetum and the type of P. nemorale. Morphological features and molecular analyses provide evidence that those two groups are distinct, as well as allowed to describe the new species. The results are strongly supported by the statistical analyses of morphometric features and phylogenetic analyses based on concatenated nuclear and chloroplast DNA markers. The maximum likelihood (ML) and Bayesian inference (BI) analyses of ITS, rps4 and rpl16 regions place both species outside the P. nemorale group. The distinctions between individual species, reflected by the morphological features—easy to observe—and the molecular data, provide a scientific foundation for the resurrection of P. longisetum Lindb. and establishment of a new species–P. angusticellum sp. nov.
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                Author and article information

                Contributors
                Journal
                PhytoKeys
                PhytoKeys
                3
                urn:lsid:arphahub.com:pub:F7FCE910-8E78-573F-9C77-7788555F8AAD
                PhytoKeys
                Pensoft Publishers
                1314-2011
                1314-2003
                2020
                07 August 2020
                : 155
                : 141-153
                Affiliations
                [1 ] Department of Geobotany and Plant Ecology, Faculty of Biology and Environmental Protection, University of Lodz, ul. Banacha 12/16, 90-237 Lodz, Poland University of Lodz Lodz Poland
                [2 ] Department of Plant Biology, Institute of Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, ul. Kożuchowska 7a, 51-631 Wrocław, Poland Wrocław University of Environmental and Life Sciences Wrocław Poland
                Author notes
                Corresponding author: Grzegorz J. Wolski ( grzegorz.wolski@ 123456biol.uni.lodz.pl )

                Academic editor: Matt von Konrat

                Author information
                https://orcid.org/0000-0003-1480-8003
                https://orcid.org/0000-0001-7422-411X
                https://orcid.org/0000-0003-4100-3438
                Article
                51469
                10.3897/phytokeys.155.51469
                7428462
                f1c79976-cd35-4bba-b6dd-8febeb74a13b
                Grzegorz J. Wolski, Anna Faltyn-Parzymska, Jarosław Proćków

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 25 February 2020
                : 19 June 2020
                Categories
                Research Article
                Hypnales
                Plagiotheciaceae
                Taxonomy
                Cenozoic
                Neogene
                Alps
                Asia
                Central Asia
                Central Europe
                Eastern Europe
                Europe
                Far East
                Middle East
                Northern Europe
                Southern Europe and Mediterranean
                Western Europe

                Plant science & Botany
                codes of botanical nomenclature,hooker collection,india,mitten collection,nomenclatural types, plagiothecium , stereodon ,typification

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