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Issue: Vol. 716 No. 2: 28 Aug. 2025
Type: Article
Published: 2025-08-28
DOI: 10.11646/phytotaxa.716.2.6
Page range: 137-144
Abstract views: 989
PDF downloaded: 9

A new member (Camellia dakplaoensis) and new synonymization in Camellia section Piquetia (Theaceae)

Faculty of Agriculture and Forestry, Tay Nguyen University, Buon Ma Thuot City, Dak Lak Province, Vietnam
Faculty of Agriculture and Forestry, Tay Nguyen University, Buon Ma Thuot City, Dak Lak Province, Vietnam
Department of Agriculture and Rural Development of Dak Nong Province
Faculty of Agriculture and Forestry, Tay Nguyen University, Buon Ma Thuot City, Dak Lak Province, Vietnam
Faculty of Agriculture and Forestry, Tay Nguyen University, Buon Ma Thuot City, Dak Lak Province, Vietnam
Institute of Advanced Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
Eudicots Central Highlands Dak Nong Province synonym Vietnam yellow camellia

Abstract

This study describes a new species of Camellia section Piquetia, C. dakplaoensis, from Dak Nong Province, Vietnam. Morphologically, it closely resembles C. langbianensis but differs in key floral and fruit traits, including plain yellow flowers, pedicels with 4 or 5 larger lanceolate bracteoles, adaxially glabrous sepals with a cuspidate apex, ovate to widely orbicular and adaxially glabrous petals, wholly yellow and glabrous filaments, and distinctly ridged capsules. Conservation assessments classify C. dakplaoensis as Critically Endangered (CR) under IUCN criteria. During a taxonomic re-evaluation of species within the section, C. campanulata and C. longii were proposed as heterotypic synonyms of C. cattienensis due to a lack of significant morphological distinctions and publication priority. With these findings, section Piquetia now includes 15 species, comprising eight with yellow flowers and seven with red to purple flowers.

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How to Cite

Nguyen, T.T.H., Nguyen, T.H., Pham, T.A., Nguyen, D.D., Ngo, T.S. & Luu, H.T. (2025) A new member (Camellia dakplaoensis) and new synonymization in Camellia section Piquetia (Theaceae). Phytotaxa 716 (2): 137–144. https://doi.org/10.11646/phytotaxa.716.2.6