An infrageneric taxonomic revision of the genus Osmanthus

LI Yongfu, YANG Qinghua, CHEN Lin, ZHANG Min, XIANG Qibai, WANG Xianrong, DUAN Yifan

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (3) : 58-62.

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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (3) : 58-62. DOI: 10.12302/j.issn.1000-2006.202404025

An infrageneric taxonomic revision of the genus Osmanthus

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Abstract

【Objective】 The genus Osmanthus Lour. species represented by sweet osmanthus has high economic and research values. However, species relationships within the genus have been controversial due to the lack of distinct morphological characters among species, and there is an urgent need for a taxonomic revision of the sectional relationships within the genus. 【Method】 This study integrates multiple lines of evidence from morphological characters and molecular phylogeny to define section-level taxonomic units within the genus. Taxonomic treatments were provided based on taxonomic principles and nomenclatural codes. 【Result】 Here we propose to divide the genus Osmanthus into four sections, first retaining O. sect. Osmanthus and O. sect. Siphosmanthus Franch.; secondly, creating a new section with O. decorus (Boiss. & Balansa) Kasapligil; then creating a new section with O. yunnanensis (Franch.) P. S. Green and O. serrulatus Rehder; and finally, merging O. sect. linocieroides P. S. Green into O. sect. Osmanthus. These four sections are all strongly supported morphologically, phylogenetically and geographically. 【Conclusion】 The new revision ensures the phylogenetic relationships of each group are monophyletic and morphologically specific, which makes the species relationships more consistent with the evidence of systematic evolution, and provides an important reference for future scientific research and resource conservation and utilization.

Key words

sectional relationships / taxonomic revision / phylogenetic relationships / morphological characters / geographic distributions

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LI Yongfu , YANG Qinghua , CHEN Lin , et al . An infrageneric taxonomic revision of the genus Osmanthus[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2024, 48(3): 58-62 https://doi.org/10.12302/j.issn.1000-2006.202404025

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南京林业大学杨永教授、密苏里植物园张丽兵教授在文章撰写和分类法规方面给予指导和帮助。

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