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Issue: Vol. 668 No. 1: 10 Oct. 2024
Type: Article
Published: 2024-10-10
DOI: 10.11646/phytotaxa.668.1.6
Page range: 99-107
Abstract views: 96
PDF downloaded: 9

Recognition of Pleuropterus angulatus (Polygonaceae) as a separate species: evidence from morphological and molecular data

BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China.
South China Botanical Garden, Chinese Academy of Sciences. South China national Botanical Garden. University of Chinese Academy of Sciences.
South China Botanical Garden, Chinese Academy of Sciences. South China national Botanical Garden. University of Chinese Academy of Sciences.
Hope College, Holland, MI 49423, USA
South China Botanical Garden, Chinese Academy of Sciences. South China national Botanical Garden. State Key Laboratory of Dao-di Herbs, Beijng, 100700, P. R. China.
chloroplast genome morphology new combination phylogeny Pleuropterus Eudicots

Abstract

On the basis of morphological and molecular data, we demonstrate that Polygonum multiflorum var. angulatum actually belongs to the genus Pleuropterus. As a consequence, a nomenclatural change (Pleuropterus angulatus comb. et stat. nov.) is proposed. This species is closely related to Pleuropterus multiflorus, but differ from the latter in root tuber color (white vs. yellow-brown in P. multiflorus), vascular strands (absent vs. present), branchlets (densely papillate vs. smooth), and vein (densely papillae vs. non-papillate), and extra-floral nectaries (deeper, thicker around the lips vs. shallow, thin).

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