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

Grzegorz J Wolski and Paulina Nowicka-Krawczyk

PLOS ONE, 2020, vol. 15, issue 3, 1-17

Abstract: 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.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0230237

DOI: 10.1371/journal.pone.0230237

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