首页|A new infrageneric classification of Gastrochilus(Orchidaceae:Epidendroideae)based on molecular and morphological data
A new infrageneric classification of Gastrochilus(Orchidaceae:Epidendroideae)based on molecular and morphological data
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Gastrochilus is an orchid genus containing 73 species of mainly epiphytic on trees or rocks in mountain forests of tropical and subtropical Asia.Previous phylogenetic analyses and morphological assessments have failed to produce a well-resolved phylogeny at the infrageneric level.In the present study,a new infrageneric classification of Gastrochilus is proposed based on thoroughly morphological and phyloge-netic analyses based on 52 species.Our phylogenetic analysis divided the genus into six sections including three new sections,G.sect.Pseudodistichi,G.sect.Brachycaules and G.sect.Acinacifolii.We also reinstate G.suavis to the specific rank.Furthermore,two new species,G.armeniacus Jun Y.Zhang,B.Xu &Yue H.Cheng and G.minjiangensis Jun Y.Zhang,B.Xu & Yue H.Cheng,are described and illustrated.A key to six sections of the genus is presented.
GastrochilusPhylogenyCharacter evolutionTaxonomyNew species
China-Croatia"Belt and Road"Joint Laboratory on Biodiversity and Ecosystem Services,CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province,Chengdu Institute of Biology,Chinese Academy of Sciences,P.O.Box 416,Chengdu 610041,Sichuan,China
College of Life Sciences,Chongqing Normal University,Chongqing 401331,China
Wolong National Natural Reserve Administration Bureau,Wenchuan 623006,Sichuan,China
University of Chinese Academy of Sciences,Beijing 100049,China
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