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19 November 2021 A survey of the section Scapania of the genus Scapania (Scapaniaceae) with description of new species Scapania pseudouliginosa and resurrection of S. gigantea
Alexey Potemkin, Vadim Bakalin, Anna Vilnet, Ksenia Klimova, Ekaterina Kuzmina
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Abstract

Morphological, molecular-genetic, and phytogeographic analyses of the type section of the genus Scapania resulted in the description of a new species for science Scapania pseudouliginosa, the resurrection of S. gigantea, and segregation of a new subsection Giganteae, including mainly East Asian taxa with thick- to thin-walled median leaf cells with distinct trigones and a few large oil bodies. The key to species of the section and color photomicrographs of S. gigantea, S. pseudouliginosa and S. sichuanica are provided. Scapania rufidula, S. serrulata, S. sichuanica and S. pseudouliginosa demonstrate morphological parallelism with some species of the sections Compactae, Nemorosae, Stephania, and Curtae, respectively. The distinctions of these species are discussed. The parallelism may have resulted from the similarity of their habitats in different phytogeographic areas.

Copyright ©2021 by The American Bryological and Lichenological Society, Inc.
Alexey Potemkin, Vadim Bakalin, Anna Vilnet, Ksenia Klimova, and Ekaterina Kuzmina "A survey of the section Scapania of the genus Scapania (Scapaniaceae) with description of new species Scapania pseudouliginosa and resurrection of S. gigantea," The Bryologist 124(4), 569-589, (19 November 2021). https://doi.org/10.1639/0007-2745-124.4.569
Received: 16 June 2021; Accepted: 28 July 2021; Published: 19 November 2021
JOURNAL ARTICLE
21 PAGES


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KEYWORDS
China
East Asia
KAMCHATKA
liverwort systematics
Marchantiophyta
North America
Northern Pacific
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