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Issue: Vol. 718 No. 2: 18 Sept. 2025
Type: Article
Published: 2025-09-18
DOI: 10.11646/phytotaxa.718.2.4
Page range: 123-132
Abstract views: 947
PDF downloaded: 21

Lanonia yunnanensis (Arecaceae), a new species from Yunnan, China

Dept of Botany, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
Dept of Botany, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
Dept of Botany, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
Dept of Botany, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
Palmae Morphology Taxonomy Key Phylogenetic Tree Monocots

Abstract

Lanonia yunnanensis R. P. Kuang et J. W. Qin, a new species of Arecaceae from Yunnan, China, is described and illustrated. It differs from all other congeners in diagnostic traits including leaf blade with 5–7 segments, single undivided middle leaf segment, strongly ribbed rachis bracts, curved fleshy inflorescences, 1–2 pistillate partial inflorescences and densely arranged pistillate flowers. An identification key to the species of Lanonia in China is provided. Six molecular markers (CISP4, MS, RPB2, matK, ndhF and trnD-trnT) were sequenced and analyzed through combined phylogenetic analyses using Maximum likelihood and Bayesian inference methods. In the phylogenetic tree, four samples of L. yunnanensis from three populations formed a strongly supported monophyletic clade (ML bootstrap = 90%, BI PP = 1.0). Both morphological and molecular phylogenetic evidence collectively support the recognition of this taxon as a new species.

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How to Cite

Chen, S.-Y., Qin, J.-W., Chen, Z.-S. & Kuang, R.-P. (2025) Lanonia yunnanensis (Arecaceae), a new species from Yunnan, China. Phytotaxa 718 (2): 123–132. https://doi.org/10.11646/phytotaxa.718.2.4