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Oreocharis scutifolia (Gesneriaceae) , a unique new species from the Dry and Hot Valley of Jinsha River Basin, Yunnan, China
  • +3
  • Zhi Xie,
  • Nana Peng,
  • Miao Zhang,
  • Guo-en Ding,
  • Fang Wen,
  • Hanghui Kong
Zhi Xie
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences
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Nana Peng
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences
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Miao Zhang
Department of Biological Science, College of Life Sciences, Sichuan Normal University
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Guo-en Ding
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences
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Fang Wen
Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, CAS
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Hanghui Kong
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences

Corresponding Author:[email protected]

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Abstract

A unique new species, Oreocharis scutifolia Z. Xie, Miao Zhang & H. H. Kong, endemic to the Dry and Hot Valley of Jinsha River Basin, Yunnan, China, is described and illustrated here. It is similar to O. cordatula (Craib) Pellegr. and O. aurantiaca Baill. in some morphological characters, but differs in its unique peltate, ovate to oblong leaf blades with emarginated apex, places and types of indumentum, length of peduncles and corolla, also have significant differences in these species. Molecular phylogenetic analysis based on transcriptome data strongly supported O. scutifolia as a new species, while it forms a sister group with O. henryana Oliv., O. cordatula (Craib) Pellegr., O. minor Pellegr. and O. aurantiaca Baill. (ML = 100). Due to its tiny population, narrow distribution range, and the serious threat from human activities, invasive plants and damaged habitat, the new species is assessed as “critically endangered” following the IUCN categories and criteria.
13 Nov 2023Submitted to Ecology and Evolution
16 Nov 2023Submission Checks Completed
16 Nov 2023Assigned to Editor
08 Feb 2024Reviewer(s) Assigned
02 Apr 2024Review(s) Completed, Editorial Evaluation Pending