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Issue: Vol. 483 No. 2: 10 February 2021
Type: Article
Published: 2021-02-10
DOI: 10.11646/phytotaxa.483.2.10
Page range: 177–182
Abstract views: 19
PDF downloaded: 1

Gastrodia qingyunshanensis (Orchidaceae: Epidendroideae)—a new holomycotrophic orchid from Guangdong, China

Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510640, People’s Republic of China. South China Limestone Plants Research Center, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510640, People’s Republic of China.
Basic Experiment and Practice Training Center, South China Agricultural University, Guangzhou 510640, People’s Republic of China.
Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural South China Limestone Plants Research Center, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510640, People’s Republic of China.
Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510640, People’s Republic of China.
Administration Office of Wengyuan Qingyunshan Provincial Nature Reserve, Shaoguan 512600, People’s Republic of China.
Administration Office of Wengyuan Qingyunshan Provincial Nature Reserve, Shaoguan 512600, People’s Republic of China.
Administration Office of Wengyuan Qingyunshan Provincial Nature Reserve, Shaoguan 512600, People’s Republic of China.
Administration Office of Wengyuan Qingyunshan Provincial Nature Reserve, Shaoguan 512600, People’s Republic of China.
Administration Office of Wengyuan Qingyunshan Provincial Nature Reserve, Shaoguan 512600, People’s Republic of China.
Forestry Bureau of Wengyuan County, Shaoguan 512600, People’s Republic of China.
Administration Office of Wengjiangyuan National Wetland Park, Shaoguan 512600, People’s Republic of China.
Research Institute of Tropical Forestry, Chinese Academy of Forestry, Longdong, Guangzhou 510520, People’s Republic of China.
Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510640, People’s Republic of China. South China Limestone Plants Research Center, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510640, People’s Republic of China.
Gastrodia holomycotrophic orchid Epidendroideae Orchidaceae Monocots

Abstract

A new species of Gastrodia (Orchidaceae: Epidendroideae, Gastrodieae), G. qingyunshanensis, is described and illustrated from Guangdong, China. It is closely related to G. appendiculata C. S. Leou & N. J. Chung but can be distinguished by an urceolate (vs bell-like) and dark brown (vs pale greenish brown) perianth tube, the smaller petals (2.5 × 1.6 mm vs 4–5 × 5–6 mm), the shape of lip (oblong, 3×1.6mm vs ovate, 6–7×5mm), lack of elevated calli at the base of petal (vs having calli), and an appendage shorter than column (vs equal to column). The new species is only reported to occur on Qingyunshan Nature Reserve, Wengyuan County, China, and it is proposed to be Vulnerable (VU) according to the IUCN criteria.