Coelogyne magnifica (Orchidaceae), a new species from northern Myanmar.

Bin Yang,Qiang Liu,Shi-Shun Zhou,Yunhong Tan,Kyaw Win Maung

doi:10.3897/phytokeys.88.19861

Bin Yang, Qiang Liu + Show 3 more

Open Access

https://doi.org/10.3897/phytokeys.88.19861

Copy DOI

Abstract

Coelogyne magnifica (Orchidaceae), a new species from Putao, Kachin State, Myanmar, is described and illustrated. It belongs to Coelogyne section Ocellatae Pfitzer & Kraenzl. and it is morphologically similar to Coelogyne corymbosa and C. taronensis, but can be distinguished from these species by its larger flowers, lanceolate sepals and petals, a narrowly ovate lip, which has two bright yellow patches surrounded by shiny brownish red and two fimbriate or erose-lacerate lateral keels on the lip. The major differences between these species are outlined and discussed.

Highlights

Coelogyne magnifica is similar to C. corymbosa and C. taronensis, but can be distinguished from these two species by its larger flowers, broadly lanceolate sepals and petals, narrowly ovate lip, which has two bright yellow patches surrounded by shiny brownish red and two fimbriate or erose-lacerate keels on the lip
White, lip adaxially on mid-lobe with two bright yellow patches surrounded by shiny brownish red and connected to front part of each of the side lobes, keels consisting of two parallel crests with white fimbriate prominence
Coelogyne magnifica is similar to both C. corymbosa and C. taronensis in terms of vegetative morphology and shape of the flowers, but differs mainly with respect to the characters of patches and keels on the lip

Summary

Introduction

The genus Coelogyne Lindl. (Lindley 1821), which consists of approximately 200 species, is distributed from South India, through tropical Asia and the Malay Archipelago into the Pacific as far east as Fiji, with the main centres being in Borneo, Su-. F. Currently, 43 species of Coelogyne have been recorded in Myanmar (Kress et al 2003), in a recently published field guide to the orchids of Myanmar, only 33 Coelogyne species are described (Kurzweil and Lwin 2014). On the basis of a detailed examination of the morphological and anatomical characters of this material and of presumed closely similar species (Clayton 2002, Kress et al 2003, Chen and Clayton 2009, George and George 2011, Subedi 2011, Yonzone 2012a, 2012b, Li and Dao 2014, Gogoi et al 2015, Aung et al 2017), the conclusion was made that the specimens collected in Myanmar belong to a species new to science, which is described and illustrated

Material and methods

Discussion