Paraphlomis hsiwenii (Lamiaceae), a new species from the limestone area of Guangxi, China

By

Chen, Yaping
Xiao, Jin-Fei
Xiang, Chunlei
Li, Xiong

Type

Article

Date of Publication

2022

Original Publication

PhytoKeys

Volume

212

Pages

85--96

Subjects

Ajugoides , karst , Matsumurella , nutlet , Paraphlomideae

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.212.91174

 

Abstract

The indumentum of nutlets is shown to be of phylogenetic importance in previous molecular phylogenetic studies of Paraphlomis, a genus of Lamiaceae with approximately 30 species distributed mainly in southern China and Southeast Asia. Nearly half the species of Paraphlomis are known from limestone areas. In this study, we described and illustrated a new species, P. hsiwenii, from the karst mountain forests in Guangxi Zhuang Autonomous Region, China. Our molecular phylogenetic analyses revealed that P. hsiwenii is recovered in a clade consisting of species with hairy nutlets. The new species is morphologically most similar to P. pagantha from the same clade, but they differ in the morphology of lamina bases, length of pedicels and calyces, as well as the morphology of upper corolla lips.