Scutellaria cavicola (Lamiaceae), a new cave-dwelling species from Northwest Guangxi, China

By

Xiong, Chi
Wei, Zi-Yu
Liu, Rui-Ning
Chen, Feng
Xiao-Ying, Fu
Yi-Chen, Wang
Fu, Long-Fei

Type

Article

Date of Publication

2025-9-12

Original Publication

PhytoKeys

Volume

262

Pages

293--304

Subjects

flora of Guangxi , karst cave , Lingyun County , Phylogeny , Scutellaria tsinyunensis , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.262.158923

 

Abstract

Scutellaria cavicola C.Xiong, Z.Y.Wei & L.F.Fu, a new cave-dwelling species discovered in Lingyun County, Guangxi, China, was described and illustrated. The new species morphologically resembles S. tsinyunensis in having ligneous stems, stiffly papery leaves, undulate leaf margins. However, it can be clearly distinguished from S. tsinyunensis in the height of plants, the shape of leaf blades, the length of petiole and racemes, the size of leaves and nutlets. The results of molecular phylogenetic analysis, based on nuclear ribosome internal transcribed spacer (ITS) and external transcribed spacers (ETS) of 43 Scutellaria species, showed that S. cavicola is closely related to S. tsinyunensis. Notably, according to the IUCN Red List Categories and Criteria, the new species is assigned to the Critically Endangered (CR) category.