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Ignored Biodiversity in Acid Soil Islands in Karst Areas, South China : Impatiens longlinensis (Balsaminaceae), a New Critically Endangered Species
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- Xue, Tian-Tian (author)
- Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
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- Xia, Chang-Ying (author)
- Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
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- Lidén, Magnus, Docent, 1951- (author)
- Uppsala universitet,Systematisk biologi
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- (creator_code:org_t)
- 2020
- 2020
- English.
- In: Systematic Botany. - 0363-6445 .- 1548-2324. ; 45:4, s. 891-899
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The karst area in South China is notable for its fragile vegetation and unique flora with many narrow endemic species, and is one of the most threatened biodiversity hotspots in the world. However, the biodiversity of acid soil areas scattered in the karst area have previously been underestimated. With a recent increase of new discoveries of plants and animals, the conservation of biodiversity in these acid soil areas has become urgent. This study deals with a new species, Impatiens longlinensis . The new species is similar to I. yui and I. lasiophyton in having pubescence, two lateral sepals, funnelform lower sepal, and linear capsule. But it can be distinguished by having orbicular to obovate dorsal sepals and oblong to elliptic lower and upper lobes of lateral united petals. Moreover, molecular data and micro-morphological evidence also support that the species is new to science. The new species is only known from a valley near the summit of Mt. Jinzhongshan within an area of less than 5 km2. Based on the Red List categories and criteria developed by the International Union for Conservation of Nature, and the threat posed by exploitation for tourism development, we categorize it as Critically Endangered (CR).
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Keyword
- Morphology
- phylogeny
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Li, Shu-Wan
- Yu, Sheng-Xiang
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