Article

Rediscovery of Youngia longipes reveals a new species of Youngia (Asteraceae) in China

Qun LiuState Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, ChinaTianqiang ZHANGCollege of Biology and Environmental Sciences, Jishou University, Jishou 416000, Hunan, ChinaNan LinState Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China. College of Life Science, Henan Agricultural University, Zhengzhou 450002, Henan, ChinaDai-Gui ZhangCollege of Biology and Environmental Sciences, Jishou University, Jishou 416000, Hunan, ChinaXianhan HuangState Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, ChinaJingyuan YangUmida TojiboevaCentral Herbarium of Uzbekistan, Institute of Botany, Academy Sciences of Uzbekistan, Tashkent 100025, UzbekistanJianwen ZhangState Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, ChinaTao DengState Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China

Phytotaxajournal2024en

ABI

Abstract

Youngia wulingensis, a new species of Asteraceae from Wuling Mountain, central China, is described and illustrated. This new species had been identified as Y. longipes for a long period of time. However, we rediscovered Y. longipes in its type locality, re-examined the type specimen of Y. longipes, and found out many differences between Y. longipes and Y. wulingensis, which can be easily distinguished by the shape of leaves and especially the cylindrical involucre with a keel-like central rib. The phylogenetic analyses based on the internal transcribed spacers (ITS) and one chloroplast marker (rps16) indicated that three accessions of Y. wulingensis were grouped together (BP = 1 and LP = 0.98) and appeared sister to Y. zhengyiana with strong support (PP = 1, LP = 0.98). Finally, we characterised the new species by morphological comparisons and molecular analyses.

Topics

Plant Taxonomy and Phylogenetics Botany and Plant Ecology Studies Sesquiterpenes and Asteraceae Studies

Identifiers

DOI: 10.11646/phytotaxa.655.1.2

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