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Issue: Vol. 708 No. 1: 2 Jul. 2025
Type: Article
Published: 2025-07-02
DOI: 10.11646/phytotaxa.708.1.8
Page range: 87-94
Abstract views: 404
PDF downloaded: 14

Aristolochia phoenixa, a new species of Aristolochiaceae from Hainan Island, China

School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China; Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China; Nanjing Forestry University, Nanjing 210037, China
Center for Basic Experiments and Practice training, South China Agricultural University, Guangzhou 510640, China
School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China; Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
morphology Siphisia taxonomy Magnoliids

Abstract

Aristolochia phoenixa is described and illustrated as a new species of Aristolochiaceae from Hainan Island, China. This species is morphologically similar to A. ledongensis and Isotrema sanyaense in the shape of leaf blade and calyx. However, A. phoenixa can be easily distinguished from these two species by its pedicel (1.8–2.2 cm vs. 0.7–1.0 cm, 1.1–2.6 cm), size of basal tube (ca. 20.0–26.0 × 5.0–6.0 mm vs. ca. 15.0–16.0 × 4.5–5.0 mm, ca. 22 × 5 mm) and throat (without spots vs. with dark red–brown spots, without spots), and the flowering time (November–December vs. August, October).

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How to Cite

Xue, M.-Y., Huang, R.-Z., Yang, H.-J., Lu, C.-Y. & Xu, H. (2025) Aristolochia phoenixa, a new species of Aristolochiaceae from Hainan Island, China. Phytotaxa 708 (1): 87–94. https://doi.org/10.11646/phytotaxa.708.1.8