Aster mayangheense (Asteraceae, Aster), a new species from Guizhou Province, China

By

Li, Zhi
Wu, Jiang-Hua
Wang, Yujie
Zhou, Qi-Xian
An, Ming-Tai

Type

Article

Date of Publication

2025-6-10

Original Publication

PhytoKeys

Volume

257

Pages

179--190

Subjects

Aster , molecular phylogeny , Morphology , new taxon

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.257.145670

 

Abstract

Aster mayangheense Z.Li (Asteraceae, Astereae), a new species from Guizhou, China, is described and illustrated here. Morphological and molecular analyses based on nuclear ribosomal DNA internal transcribed spacer (nrDNA ITS) confirm its distinct status. The species is morphologically similar to A. saxicola, but differs by its falcate, adaxially shiny upper leaves 3.5–5.0 × 0.8–2.0 cm with long-acuminate to caudate apices (versus oblong-lanceolate to lanceolate leaves in A. saxicola); 5-seriate, abaxially red-purple phyllaries (versus 3–5-seriate with purple-tipped phyllaries); and fewer florets (7–12 ray florets and 5–9 disc florets versus 9–14 ray florets and 10–18 disc florets). Phylogenetic analysis strongly supports its distinctness, with four samples forming a monophyletic clade (PP = 1.00, BS = 100%) nested within Aster.