Journal
PHYTOKEYS
Volume -, Issue 135, Pages 59-69Publisher
PENSOFT PUBLISHERS
DOI: 10.3897/phytokeys.135.36426
Keywords
Silene; new species; morphology; phylogeny; China
Categories
Funding
- Conservation Technology Research and Demonstration of Rare and Endangered Plants in Shenlongjia National Park [2018ACA132]
- Hubei Key Laboratory of Shenlongjia Snub-nosed Monkey Conservation Fund [2018SNJ0009]
- Key Projects of the Joint Fund of the National Natural Science Foundation of China [U1802232]
- Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0502]
- Major Program of the National Natural Science Foundation of China [31590823]
- National Key R&D Program of China [2017YFC0505200]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDA20050203]
- National Natural Science Foundation of China [31700165]
- Youth Innovation Promotion Association CAS [2019382]
- Young Academic and Technical Leader Raising Foundation of Yunnan Province [2019HB039]
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Silene sunhangii, a new species of Caryophyllaccac 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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