Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China

Gastrochilus obovatifolius, a new species discovered in the Dabashan of northeast Chongqing (China), is described and illustrated. The novelty morphologically resembles G. affinis, G. balangshanensis and G. heminii in having a glabrous and smooth epichile. but can be distinguished by the unique obov...

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Main Authors: Chi Xiong, Xiao-Ying Fu, Ke Tan, Ya Huang, Hong-Jing Zhang, Yi-Chen Wang, Yu-Bing Yang, Si-Rong Yi
Format: Article
Language:English
Published: Pensoft Publishers 2025-02-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/133501/download/pdf/
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author Chi Xiong
Xiao-Ying Fu
Ke Tan
Ya Huang
Hong-Jing Zhang
Yi-Chen Wang
Yu-Bing Yang
Si-Rong Yi
author_facet Chi Xiong
Xiao-Ying Fu
Ke Tan
Ya Huang
Hong-Jing Zhang
Yi-Chen Wang
Yu-Bing Yang
Si-Rong Yi
author_sort Chi Xiong
collection DOAJ
description Gastrochilus obovatifolius, a new species discovered in the Dabashan of northeast Chongqing (China), is described and illustrated. The novelty morphologically resembles G. affinis, G. balangshanensis and G. heminii in having a glabrous and smooth epichile. but can be distinguished by the unique obovate shape of the leaves, smaller epichile, and flower color. The results of molecular phylogenetic analysis, based on nuclear ribosome internal transcribed spacer (nrITS) and four chloroplast DNA fragments (matK, psbA–trnH, psbM–trnD, and trnL–F) of 55 Gastrochilus species, support the inclusion of G. obovatifolius in G. sect. Microphylli, being most closely related to G. balangshanensis from Sichuan. The new species is a trunk epiphyte in evergreen broad-leaved forest.
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id doaj-art-5b9c9b9ee6b74c229ed9ab5591b6aa58
institution Kabale University
issn 1314-2003
language English
publishDate 2025-02-01
publisher Pensoft Publishers
record_format Article
series PhytoKeys
spelling doaj-art-5b9c9b9ee6b74c229ed9ab5591b6aa582025-02-09T08:31:13ZengPensoft PublishersPhytoKeys1314-20032025-02-01252254010.3897/phytokeys.252.133501133501Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, ChinaChi Xiong0Xiao-Ying Fu1Ke Tan2Ya Huang3Hong-Jing Zhang4Yi-Chen Wang5Yu-Bing Yang6Si-Rong Yi7Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of SciencesGuangxi Normal UniversityGuangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of SciencesChongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical CollegeChongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical CollegeHangzhou Botanical GardenSouthwest UniversityChongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical CollegeGastrochilus obovatifolius, a new species discovered in the Dabashan of northeast Chongqing (China), is described and illustrated. The novelty morphologically resembles G. affinis, G. balangshanensis and G. heminii in having a glabrous and smooth epichile. but can be distinguished by the unique obovate shape of the leaves, smaller epichile, and flower color. The results of molecular phylogenetic analysis, based on nuclear ribosome internal transcribed spacer (nrITS) and four chloroplast DNA fragments (matK, psbA–trnH, psbM–trnD, and trnL–F) of 55 Gastrochilus species, support the inclusion of G. obovatifolius in G. sect. Microphylli, being most closely related to G. balangshanensis from Sichuan. The new species is a trunk epiphyte in evergreen broad-leaved forest.https://phytokeys.pensoft.net/article/133501/download/pdf/
spellingShingle Chi Xiong
Xiao-Ying Fu
Ke Tan
Ya Huang
Hong-Jing Zhang
Yi-Chen Wang
Yu-Bing Yang
Si-Rong Yi
Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
PhytoKeys
title Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
title_full Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
title_fullStr Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
title_full_unstemmed Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
title_short Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
title_sort gastrochilus obovatifolius orchidaceae aeridinae a new species from the daba mountains of chongqing china
url https://phytokeys.pensoft.net/article/133501/download/pdf/
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