New taxa of tribe Gastrodieae (Epidendroideae, Orchidaceae) from Yunnan, China and its conservation implication

Plant Diversity

卷:43

Kuan-Bo Chi¹  Xiao-Hua Jin²  Jian-Wu Li³  Ji-Dong Ya⁴  Hai-Lei Zheng⁵  Bing-Yi Shao⁶  Qiang Liu⁷  Xun-Feng Wu⁷ 

[1] Herbarium (PE), Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China;

[2] Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China;

[3] China Wild Dali Nature Education and Research Center, Dali, Yunnan, 671000, China;

[4] Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Heilongtan, Kunming, Yunnan, 650201, China;

[5] Southwest Forestry University, Kunming, 650224, China;

[6] State Key Laboratory of Systematic and Evolutionary Botany &

[7] Yunnan Forestry Technological College, Jindian Road, Panlong District, Kunming, Yunnan, 650224, China;

关键词: Gastrodia;    Taxonomy;    New species;    Gastrodieae;    Orchidaceae;    China;   

DOI  :  

来源: DOAJ

【 摘 要 】

Gastrodia longistyla, a new species of Orchidaceae from Yunnan Province, China, is described and illustrated. It is morphologically similar to Gastrodia peichatieniana, but can be easily distinguished from the latter by having a rhombic epichile, long column (6.0–7.5 mm long), and a needle-shaped appendage (1.8–3.2 mm in length) at the base of the stigma. Identification key and colour photographs are provided. A preliminary risk-of-extinction assessment, according to the IUCN Red List Categories and Criteria, is given for the new species. The plastome of G. longistyla is 30464 bp in length with GC content approximately 24.8%, and the plastome does not contain some housekeeping genes, such as matK, rpl16, or all photosynthesis genes. In addition, the G. longistyla plastome lacks an IR region. This indicates that the plastome is in the last stage of degradation.

【 授权许可】

Unknown