Silene sunhangii (Caryophyllaceae), a new species from China

Silene sunhangii, a new species of Caryophyllaceae known from only three populations in Hubei and Hunan provinces of central China, is described. Both morphological and molecular data were used to assess the taxonomic status and relationships of this species. Morphologically, S. sunhangii is most si...

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Bibliographic Details
Published in:PhytoKeys
Main Authors: Lin, Nan, Zhang, Dai-Gui, Huang, Xian-Han, Zhang, Jian-Wen, Yang, Jing-Yuan, Tojibaev, Komiljon, Wang, Heng-Chang, Deng, Tao
Format: Article in Journal/Newspaper
Language:unknown
Published: Pensoft Publishers 2019
Subjects:
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Silene
Macarthuriaceae
Paronychioideae
Sileneae
Silene involucrata tenella
new species
morphology
phylogeny
China
Silene involucrata
Online Access:https://zenodo.org/record/3573170
https://doi.org/10.3897/phytokeys.135.36426
Description
Summary:Silene sunhangii, a new species of Caryophyllaceae known from only three populations in Hubei and Hunan provinces of central China, is described. Both morphological and molecular data were used to assess the taxonomic status and relationships of this species. Morphologically, S. sunhangii is most similar to S. platyphylla Franch. from which it differs most readily in having 3-veined elliptical leaves without pubescence, tasseled catacorolla, pale purple to red petals without a linear lobe or narrow tooth and lanceolate, bifid to one third. A phylogenetic analysis based on nuclear ITS region identified the new species as a well-supported, independent lineage. Our new species is nested within a grade that encompasses species representing a polyphyletic Silene sect. Physolychnis (Benth.) Bocquet. Both the genetic and morphological data support the recognition of Silene sunhangii as a distinct species, although there is inconsistency between these two datasets as to the relationships of the new species.

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