Lysimachiadanxiashanensis, a new species of Primulaceae from Guangdong, China

Xing-Yue Zhang; Jing-Min Dai; Qiang Fan; Zai-Xiong Chen; Guang-Da Tang; Wen-Bo Liao

doi:10.3897/phytokeys.237.114484

Lysimachiadanxiashanensis, a new species of Primulaceae from Guangdong, China

PhytoKeys. 2024 Jan 31:237:257-268. doi: 10.3897/phytokeys.237.114484. eCollection 2024.

Authors

Xing-Yue Zhang¹, Jing-Min Dai¹, Qiang Fan¹, Zai-Xiong Chen², Guang-Da Tang³, Wen-Bo Liao¹

Affiliations

¹ State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
² National Park and Nature Education Research Institute, Sun Yat-sen University, Guangzhou 510275, China.
³ Administrative Commission of Danxiashan National Park, Shaoguan 512300, China.

Abstract

Lysimachiadanxiashanensis, a new Primulaceae species, endemic to the Danxia landscape in Guangdong Province, China, is described and illustrated. This new species is morphologically similar to L.pseudohenryi, L.phyllocephala, L.congestiflora and L.kwangtungensis, but it differs from the similar species by its purplish-red plants, petiole without wings, calyx with orange glandular and the corolla margin serrated on upper half with orange-red glandular punctates. This new species belongs to Lysimachiasubgen.Lysimachiasect.Nummularia. Phylogenetic analysis confirmed that L.danxiashanensis is a distinct clade, based on the combined data of ITS and rbcL sequences. The conservation status of the new species was evaluated as Endangered (EN) according to IUCN Red List Categories and Criteria.

Keywords: Danxia landscape; IUCN Red List; Lysimachia; taxonomy.

Xing-Yue Zhang, Jing-Min Dai, Qiang Fan, Zai-Xiong Chen, Guang-Da Tang, Wen-Bo Liao.

Grants and funding

the Guangdong Provincial Special Research Grant for the Creation of National Parks (2021GJGY034) and the Foundation of Administrative Committee of Danxiashan National Park (K22-33000-060, 2016-0293).