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Issue: Vol. 662 No. 2: 8 Aug. 2024
Type: Article
Published: 2024-08-08
DOI: 10.11646/phytotaxa.662.2.1
Page range: 121-136
Abstract views: 31
PDF downloaded: 3

Taxonomic studies on the genus Ophiopogon (Asparagaceae) I:—identity of O. albimarginatus and O. pseudotonkinensis, and a new species O. guangzhouensis from Guangdong, China

Guangdong Conghua Chenhedong Provincial Nature Reserve, Guangzhou 510970, Guangdong, China
College of Life Sciences, Zaozhuang University, Zaozhuang 277160, Shandong, China
Guangdong Conghua Chenhedong Provincial Nature Reserve, Guangzhou 510970, Guangdong, China
Administrative Commission of Guangdong Nanxiong Xiaoliukeng-Qingzhangshan Provincial Nature Reserve, Shaoguan 512428, Guangdong, China
State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Stress Biology, University, 510275 Guangzhou, Guangdong, China
Monocots southern China synonymy taxonomy

Abstract

One new species of Ophiopogon, O. guangzhouensis, from Guangdong Province in southern China, is described and illustrated. The new species is similar to O. bockianus, but differs markedly by its pedicel (1.3–1.7 cm long) longer than the stalky part of the floral base, adjacent anthers and filaments all completely connate, and style exerted beyond the tepals. This paper not only details their taxonomic features and relationships among similar species, but also provides data on the habitat and phenology of the new species. Based on critical observations on herbarium specimens (including type material) of nine other similar species, we also demonstrate that O. pseudotonkinensis is conspecific with O. bockianus and O. albimarginatus is synonymous with O. stenophyllus. We therefore reduce O. pseudotonkinensis and O. albimarginatus to the synonymy of O. bockianus and O. stenophyllus respectively.

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