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Issue: Vol. 772 No. 2: 28 Aug. 2026
Type: Article
Published: 2026-08-28
DOI: 10.11646/phytotaxa.772.2.3
Page range: 140-158
Abstract views: 40
PDF downloaded: 3

Heliciopsis guiliangii (Proteaceae), a new cauliflorous species from Yunnan, China, with regional synopsis and notes on cauline domatia

Herbarium; Bazi Collection & Botanical Garden; Mengzi; Yunnan; 661100; China
Hekou Branch of Management and Protection Bureau of Daweishan National Nature Reserve; Hekou; Yunnan; 661399; China
Germplasm Bank of Wild Species; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming; Yunnan; 650201; China
Eudicots cauline domatia flora of Yunnan Hekou county Heliciopsis lobata Heliciopsis terminalis myrmecophytic plant wood anatomy

Abstract

Heliciopsis guiliangii, a new cauliflorous tree species from limestone monsoon forests of southeastern Yunnan, China, is described. The racemose inflorescence with paired flowers, functional dioecy, drupaceous fruit, and reticulate pollen sexine place the species in the genus Heliciopsis. The new species is distinguished by its lack of lobed leaves and pink to purple cauliflorous inflorescences. A synopsis and key to three Heliciopsis species from continental Asia excluding Malay Peninsula south to the Alor Star-Singgora Line are provided, with lectotypification for relevant names and H. henryi synonymized under H. terminalis. We provide detailed pollen and wood descriptions for Heliciopsis guiliangii, with notes on its cauline domatia. The new species expands the morphological spectrum for Heliciopsis to include species with completely unlobed leaves and indicates underlying diversity of the genus in continental Asia.

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How to Cite

Wang, Y., Zhang, G. & Ya, J. (2026) Heliciopsis guiliangii (Proteaceae), a new cauliflorous species from Yunnan, China, with regional synopsis and notes on cauline domatia. Phytotaxa 772 (2): 140–158. https://doi.org/10.11646/phytotaxa.772.2.3