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Published June 12, 2026 | Version v1
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Oreocharis sihuiensis (Gesneriaceae), a critically endangered new species from Guangdong Province, China

Authors/Creators

  • 1. Ecological and Environmental Science and Research Institute of Zhejiang Province, Hangzhou, China|Key Laboratory of Ecological Environmental Damage Control and Value Transformation, Hangzhou, China
  • 2. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, China|National Gesneriaceae Germplasm Resources Bank of GXIB (NGGRB), Gesneriad Committee of China Wild Plant Conservation Association (GC), Gesneriad Conservation Center of China (GCCC), Guangxi Institute of Botany, Guilin Botanical Garden, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, China
  • 3. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
  • 4. Young Naturalist (Hangzhou) Cultural Communication Limited Company, Hangzhou, China

Description

Oreocharis sihuiensis sp. nov. (Gesneriaceae) is described from Guangdong Province, China. Morphologically, the flower shape of this new species is similar to that of O. dayaoshanioides, but it can be distinguished by its leaf blade being adaxially densely pubescent, with hairs 0.2–0.5 mm long (vs. adaxially sparsely villous to villous, with hairs longer than 1 mm), lobes of the corolla upper lip subrounded and apex rounded (vs. broadly ovate to orbicular-ovate and apex acute), 3 staminodes (vs. absent or 2), disc margin cleft (vs. subentire), shorter filaments (ca. 6.0 mm long vs. 8.0–12.0 mm long), and shorter capsules (ca. 1.0 cm long vs. ca. 2.0 cm long). Considering its scarce number of individuals, and the presence of severe human disturbance, we preliminarily assess the new species as 'Critically Endangered' (CR) according to IUCN Red List Categories and Criteria.

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Additional details

Cites
Publication: 10.3897/phytokeys.157.55254 (DOI)
Publication: 10.24823/nrbge.1918.2273 (DOI)
Publication: 10.24823/nrbge.1919.2284 (DOI)
Publication: 10.1017/CBO9781139107723 (DOI)
Publication: 10.1093/sysbio/syab068 (DOI)
Publication: 10.11646/phytotaxa.23.1.1 (DOI)
Publication: 10.2307/3391777 (DOI)
Has part
Figure: 10.3897/phytokeys.276.190710.figure1 (DOI)
Figure: 10.3897/phytokeys.276.190710.figure3 (DOI)
Figure: 10.3897/phytokeys.276.190710.figure4 (DOI)
Figure: 10.3897/phytokeys.276.190710.figure2 (DOI)

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