Monday, March 18, 2019

[Botany • 2019] Liparis napoensis (Orchidaceae) • A New Species from Guangxi, China


Liparis napoensis L.Li, H.F.Yan & S.J.Li

in Li, Chung, Li, et al., 2019. 

Abstract
Liparis napoensis, a new orchid species belonging to section Cestichis from Guangxi, China is described and illustrated. It occurs in the karst limestone forest. The new species is morphologically similar to L. viridiflora and L. somae, but can be readily distinguished by having narrowly oblong-falcate petals; flabellate-quadrate lip distinctly concave at base and emarginate at apex; conspicuously arcuate column with a pair of wedge-shaped wings.

Keywords: Malaxideae, Napo County, orchid, section Cestichis, taxonomy


Figure 1. Liparis napoensis A Habit in bloom B Flower, lateral view C Flower, front view D Column, ventral view E Column, lateral view F, G Lip H Dorsal sepal I Petal J Lateral sepal.
Line drawing by Yun-Xiao Liu. 
Scale bars: 2.5 cm (A), 2 mm (B, C), 1 mm (D–I).



 Figure 2. Liparis napoensis A Habitat B A plant in bloom C Inflorescence D Column, lateral view, showing bract E Flower, frontal view F Flower, lateral view G Column, ventral view, showing bract H, I Lip.
Scale bars: 5 cm (A–C), 2 mm (D–G), 1 mm (H, I).


Liparis napoensis L.Li, H.F.Yan & S.J.Li, sp. nov.

Diagnosis: Liparis napoensis differs from its closest allies: L. viridiflora and L. somae in the clustered ovoid-cylindrical or narrowly pyriform pseudobulbs, narrowly oblong-falcate petals; a flabellate-quadrate lip with a distinctly concave base, an emarginate apex and erose margins; a conspicuously arcuate column with a pair of wedge-shaped wings.
...

Distribution and habitat: Endemic to Guangxi in China. Lithophytes in rocks crevices where soil or organic matter has accumulated at elevations from ca. 650 m to 900 m in karst limestone forest.

Etymology: The epithet “napoensis” is derived from the type locality: Napo County, Guangxi, located at China’s southwest border, where the species was discovered.


 Lin Li, Shih-Wen Chung, Bo Li, Song-Jun Zeng, Hai-Fei Yan and Shi-Jin Li. 2019. Liparis napoensis (Orchidaceae), A New Species from Guangxi, China. PhytoKeys. 119: 31-37. DOI: 10.3897/phytokeys.119.32041