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Issue: Vol. 770 No. 4: 25 Aug. 2026
Type: Article
Published: 2026-08-25
DOI: 10.11646/phytotaxa.770.4.5
Page range: 279-286
Abstract views: 36
PDF downloaded: 0

Gastrodia diaoluoshanensis (Gastrodieae, Epidendroideae), a new species of Orchidaceae from Hainan Island, China

Hainan Institute of National Park / Hainan Key Laboratory of National Park Conservation and Development; Haikou 570203; Hainan; China; Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants (Hainan University); Ministry of Education; Key Laboratory of Germplasm Resources of Tropical Special Ornamental Plants of Hainan Province; School of Tropical Agriculture and Forestry; Hainan University; Haikou 570228; China
Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants (Hainan University); Ministry of Education; Key Laboratory of Germplasm Resources of Tropical Special Ornamental Plants of Hainan Province; School of Tropical Agriculture and Forestry; Hainan University; Haikou 570228; China
Hainan Institute of National Park / Hainan Key Laboratory of National Park Conservation and Development; Haikou 570203; Hainan; China; Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants (Hainan University); Ministry of Education; Key Laboratory of Germplasm Resources of Tropical Special Ornamental Plants of Hainan Province; School of Tropical Agriculture and Forestry; Hainan University; Haikou 570228; China
Hainan Institute of National Park / Hainan Key Laboratory of National Park Conservation and Development; Haikou 570203; Hainan; China; Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants (Hainan University); Ministry of Education; Key Laboratory of Germplasm Resources of Tropical Special Ornamental Plants of Hainan Province; School of Tropical Agriculture and Forestry; Hainan University; Haikou 570228; China
Monocots National Park Saprophytic Orchid Taxonomy

Abstract

This study reports Gastrodia diaoluoshanensis, a new orchid species from Hainan Island, China. Through molecular evidence, morphological comparison, descriptive verification, and anatomical analysis, it has been confirmed to differ from the previously known Gastrodia species. It is characterized by a perianth tube ranging from dark brown to black, densely covered with warts, and flowers emitting a foul odor. Morphologically, it resembles Gastrodia nipponica. The morphological features and growth environment of this species are described, accompanied by color illustrations. The discovery of this new species enriches the wild orchid resources of Hainan Island and provides a basis for the study of regional floristic composition, biodiversity research, and species conservation in the area.

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How to Cite

Liang, J., Chen, Z., Zhang, Z. & Song, X. (2026) Gastrodia diaoluoshanensis (Gastrodieae, Epidendroideae), a new species of Orchidaceae from Hainan Island, China. Phytotaxa 770 (4): 279–286. https://doi.org/10.11646/phytotaxa.770.4.5