Schnabelia jiuzhaigouensis (Lamiaceae, Ajugoideae), a new species from Sichuan, China

By

Zhao, Fei
Gao, Penwei
Zhang, Ting
Liu, Cheng
Xiang, Chunlei

Type

Article

Date of Publication

2025

Original Publication

PhytoKeys

Volume

253

Pages

21--32

Subjects

Ajugeae , Morphology , new species , Schnabelia , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.253.141697

 

Abstract

Schnabelia jiuzhaigouensis C. Liu, F. Zhao & C.L. Xiang, a new species from north-eastern Sichuan, China, is described, based on both morphological and molecular phylogenetic evidence. Morphologically, the new species is mostly similar to S. terniflora, but can be readily distinguished by its habit, ovate to lanceolate-ovate leaf blades, the presence of 5–8 lateral veins on each side of the mid-rib and distinct characteristics of the floral structure, including oblong upper lip and lateral lobes of the lower lip, with the middle lobe being cuneate. In addition, the nutlets are puberulent and lack reticulate venation. Molecular phylogenetic analyses place the new species at a basal position within the genus Schnabelia. The new species is categorised as Data Deficient (DD) according to the IUCN Red List Categories and Criteria. A key to all species of Schnabelia is also provided.