Lysimachia nanshanensis (Primulaceae), a new species from southwest Hunan, China

By

Xiong, Chi
Wang, Xiao
Xiao-Ying, Fu
Luo, Kang
Huang, Ya
Zhang, Hong-Jing
Yi, Sirong

Type

Article

Date of Publication

2025-9-9

Original Publication

PhytoKeys

Volume

262

Pages

191--202

Subjects

flora of Hunan , Morphology , Nanshan National Park , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.262.153293

 

Abstract

Lysimachia nanshanensis, a new species of Lysimachia ser. Paridiformes discovered in Nanshan National Park of southwest Hunan, China, is described and illustrated. Morphologically, this new species most closely resembles L. sciadantha in having whorled leaves and terminal umbels but differs from L. sciadantha by having terminal umbels without a peduncle, subpapery leaves with obvious black glandular punctation and striation, longer pedicels, and filaments that are nearly free. Results of molecular phylogenetic analysis, based on nuclear ribosomal internal transcribed spacer (nrITS) and two chloroplast DNA fragments (matK and rbcL) of 34 Lysimachia species, showed that L. nanshanensis is closely related to L. sciadantha. According to the IUCN Red List Categories and Criteria, the new species is assigned to the Vulnerable (VU D1) category.