Microtoena wawushanensis (Lamiaceae, Lamioideae): A new species from Sichuan, China

By

Wu, Xuexue
Wang, Yan
Chen, Yan-Yi
Wang, Qiang

Type

Article

Date of Publication

2024

Original Publication

PhytoKeys

Volume

250

Pages

223--236

Subjects

Lamiaceae , Microtoena , new taxon , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.250.139362

 

Abstract

Microtoena wawushanensis, a new species from Sichuan, China, is described and illustrated here. The new species is closely related to M. moupinensis and M. prainiana, but differs distinctly from both in leaf, calyx and bract morphology. It is further distinguished by its highly variable and unstable calyx tooth ratio (1.36–2.13), red-marked lateral lobes on the lower corolla and filaments that are barbate at both the upper and basal parts, with nearly imperceptible hairs in the middle section. Phylogenetic analyses, based on 81 coding regions of the chloroplast genome, suggest that M. wawushanensis belongs to sect. Delavayana and is sister to a clade formed by M. urticifolia, M. prainiana and M. megacalyx.