Carexqingyuanensis (Cyperaceae), a new species from Guangdong, China.

Autor: Li YL; 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, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China.; University of Chinese Academy of Sciences, Beijing 100049, China University of Chinese Academy of Sciences Beijing China., Deng SW; 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, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China., Luo JC; 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, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China., Li MX; 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, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China.; Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China Zhongkai University of Agriculture and Engineering Guangzhou China., Zou LT; 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, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China., Zeng QG; Qingyuan Forestry Bureau, Qingyuan 511515, China Qingyuan Forestry Bureau Qingyuan China., Chen HF; 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, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China.
Jazyk: angličtina
Zdroj: PhytoKeys [PhytoKeys] 2024 Apr 25; Vol. 241, pp. 155-168. Date of Electronic Publication: 2024 Apr 25 (Print Publication: 2024).
DOI: 10.3897/phytokeys.241.117734
Abstrakt: 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. Siderostictae s.s. of subg. Siderosticta and shows a closer phylogenetic relationship to Carexscaposa C. B. Clarke.
Competing Interests: The authors have declared that no competing interests exist.
(Ya-Li Li, Shuang-Wen Deng, Jin-Chu Luo, Ming-Xia Li, Li-Ting Zou, Qiu-Gen Zeng, Hong-Feng Chen.)
Databáze: MEDLINE
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