Goodyera medogensis (Orchidaceae), a new species from Tibet, China

By

Tong, Yi-Hua
Sun, Mei
Wang, Bing-Mou
Tian, Huaizhen.

Type

Article

Date of Publication

2022-2-14

Original Publication

PhytoKeys

Volume

189

Pages

141--154

Subjects

Cranichideae , Jewel orchid , Morphology , new species , Orchidoideae , Phylogeny

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.189.77374

 

Abstract

A new species of Goodyera (Orchidaceae) from Tibet, China, G. medogensis, is described and illustrated here. Molecular phylogenetic results based on one nuclear (ITS) and two plastid markers (matK and trnL-F) support the recognition of G. medogensis as a new species in Goodyera subsection Reticulum. Morphologically, the novelty is most similar to G. biflora, G. vittata and especially to G. hemsleyana, but differs by the thick grid lines of the reticulations with a diffused margin on the adaxial surface of the leaf blades, the inflorescence with more flowers, the obliquely obovate-rhombic petals, the yellow or yellowish labellum without a lamella on the blade, and the shorter trichomes on the floral bracts, sepals and ovary. Finally, a key to the species of Goodyera subsect. Reticulum in China is also provided.