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Li YL, Deng SW, Luo JC, Li MX, Zou LT, Zeng QG, Chen HF. Carexqingyuanensis (Cyperaceae), a new species from Guangdong, China. PHYTOKEYS 2024; 241:155-168. [PMID: 38706583 PMCID: PMC11066503 DOI: 10.3897/phytokeys.241.117734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/03/2024] [Indexed: 05/07/2024]
Abstract
Carexqingyuanensis, a new species of Cyperaceae from Guangdong Province, China, is described and illustrated. The new species is morphologically similar to Carexpeliosanthifolia F. T. Wang & Tang ex P. C. Li, but it can be distinguished by the racemose inflorescence branches appearing single (rarely binate or ternate) (vs. binate or ternate), one (rarely two or three) (vs. 1-3) spiked, male part of linear-cylindrical spikes much longer than the female part (vs. just male part short-cylindrical and slightly longer than female part), style base thickened (vs. not thickened) and perigynium horizontally patent with a short (vs. long and excurved) beak. Phylogenetic analysis, based on the two nuclear DNA regions (ETS 1f and ITS) and three chloroplast DNA regions (matK, ndhF and rps16), suggests that the new species belongs to sect. Siderostictaes.s. of subg. Siderosticta and shows a closer phylogenetic relationship to Carexscaposa C. B. Clarke.
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Affiliation(s)
- Ya-Li Li
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- University of Chinese Academy of Sciences, Beijing 100049, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Shuang-Wen Deng
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Jin-Chu Luo
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Ming-Xia Li
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, ChinaZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Li-Ting Zou
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
| | - Qiu-Gen Zeng
- Qingyuan Forestry Bureau, Qingyuan 511515, ChinaQingyuan Forestry BureauQingyuanChina
| | - Hong-Feng Chen
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaSouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
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Lai YJ, Han Y, Schuiteman A, Chase MW, Xu SZ, Li JW, Wu JY, Yang BY, Jin XH. Diversification in Qinghai-Tibet Plateau: Orchidinae (Orchidaceae) clades exhibiting pre-adaptations play critical role. Mol Phylogenet Evol 2020; 157:107062. [PMID: 33387648 DOI: 10.1016/j.ympev.2020.107062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 11/28/2022]
Abstract
We explore the origins of the extraordinary plant diversity in the Qinghai-Tibetan Plateau (QTP) using Orchidinae (Orchidaceae) as a model. Our results indicate that six major clades in Orchidinae exhibited substantial variation in the temporal and spatial sequence of diversification. Our time-calibrated phylogenetic model suggests that the species-richness of Orchidinae arose through a combination of in situ diversification, colonisation, and local recruitment. There are multiple origins of species-richness of Orchidinae in the QTP, and pre-adaptations in clades from North Temperate and alpine regions were crucial for in situ diversification. The geographic analysis identified 29 dispersals from Asia, Africa and Europe into the QTP and 15 dispersals out. Most endemic species of Orchidinae evolved within the past six million years.
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Affiliation(s)
- Yang-Jun Lai
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 10093, China
| | - Yu Han
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 10093, China
| | - Andre Schuiteman
- Identification and Naming Department, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, UK
| | - Mark W Chase
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK; Department of Environment and Agriculture, Curtin University, Bentley, Western Australia 6102, Australia
| | - Song-Zhi Xu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 10093, China
| | - Jian-Wu Li
- Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun Township, Mengla County, Yunnan 666303, China.
| | - Jian-Yong Wu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment (MEE), China
| | - Bo-Yun Yang
- School of Life Sciences, Nanchang University, Nanchang 330031, China.
| | - Xiao-Hua Jin
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 10093, China.
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