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.
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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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The Bryologist
Vol. 124 • No. 4
Winter 2021
Vol. 124 • No. 4
Winter 2021
China
East Asia
KAMCHATKA
liverwort systematics
Marchantiophyta
North America
Northern Pacific