Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China

Four new species of Orchidaceae from China, Heminium lijiangense, Peristylus fasciculatus, Platanthera milinensis, and Ponerorchis gongshanensis, together with a new country record, Peristylus tenuicallus, are described and illustrated based on morphological and/or phylogenetic analyses. Heminium li...

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Autores principales:	Dong-Liang Lin, Ji-Dong Ya, André Schuiteman, Chong-Bo Ma, Cheng Liu, Xue-Lian Guo, Shi-Si Chen, Xi-Long Wang, Zhi-Rong Zhang, Wen-Bin Yu, Xiao-Hua Jin
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Orchidaceae Herminium Ponerorchis Peristylus Platanthera China Biology (General) QH301-705.5 Botany QK1-989
Acceso en línea:	https://doaj.org/article/666de28707234dd58eef3a5470790968
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spelling	oai:doaj.org-article:666de28707234dd58eef3a54707909682021-11-12T04:44:01ZFour new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China2468-265910.1016/j.pld.2021.05.003https://doaj.org/article/666de28707234dd58eef3a54707909682021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2468265921000627https://doaj.org/toc/2468-2659Four new species of Orchidaceae from China, Heminium lijiangense, Peristylus fasciculatus, Platanthera milinensis, and Ponerorchis gongshanensis, together with a new country record, Peristylus tenuicallus, are described and illustrated based on morphological and/or phylogenetic analyses. Heminium lijiangense is closely related to H. elisabethae but differs from it by having the dorsal sepal ovate-orbicular and lip mid-lobe distinctly shorter than lateral lobes. P. fasciculatus is close to Peristylus tradescantifolius but is distinguished from it by having several fascicled and straight, root-like tubers (vs. one or two oblongoid tubers), old stems usually persistent, middle lobe of lip narrowly ligulate-lanceolate and half as long as the lateral lobes (vs. middle lobe deltoid, about a third as long as the lateral lobes or less), a raised callus at the base of each lateral lobe (vs. callus absent), spur gradually attenuate toward the apex (vs. spur clavate). Platanthera milinensis is similar to P. stenochila by sharing small green flowers and lip without a spur, but differs in having a creeping rhizome, a corymbose inflorescence, and a broadly ovate and slightly 3-lobed lip. Ponerochis gongshanensis is similar to P. faberi in its small flowers, but differs in having a linear leaf c. 3 mm wide (vs. leaf 5–13 mm wide), in the lip having collar-like raised margins on the sides of the spur entrance, and a mid-lobe which is notched at the apex but not divided into two divergent lobules that are nearly as large as the lateral lobes, as in P. faberi. All the proposed species obtained high support in phylogenetic analysis as new species. The recently described genus Apetalanthe is reduced to synonymy of Ponerorchis and a new combination is made.Dong-Liang LinJi-Dong YaAndré SchuitemanChong-Bo MaCheng LiuXue-Lian GuoShi-Si ChenXi-Long WangZhi-Rong ZhangWen-Bin YuXiao-Hua JinKeAi Communications Co., Ltd.articleOrchidaceaeHerminiumPonerorchisPeristylusPlatantheraChinaBiology (General)QH301-705.5BotanyQK1-989ENPlant Diversity, Vol 43, Iss 5, Pp 390-400 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Orchidaceae Herminium Ponerorchis Peristylus Platanthera China Biology (General) QH301-705.5 Botany QK1-989
spellingShingle	Orchidaceae Herminium Ponerorchis Peristylus Platanthera China Biology (General) QH301-705.5 Botany QK1-989 Dong-Liang Lin Ji-Dong Ya André Schuiteman Chong-Bo Ma Cheng Liu Xue-Lian Guo Shi-Si Chen Xi-Long Wang Zhi-Rong Zhang Wen-Bin Yu Xiao-Hua Jin Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China
description	Four new species of Orchidaceae from China, Heminium lijiangense, Peristylus fasciculatus, Platanthera milinensis, and Ponerorchis gongshanensis, together with a new country record, Peristylus tenuicallus, are described and illustrated based on morphological and/or phylogenetic analyses. Heminium lijiangense is closely related to H. elisabethae but differs from it by having the dorsal sepal ovate-orbicular and lip mid-lobe distinctly shorter than lateral lobes. P. fasciculatus is close to Peristylus tradescantifolius but is distinguished from it by having several fascicled and straight, root-like tubers (vs. one or two oblongoid tubers), old stems usually persistent, middle lobe of lip narrowly ligulate-lanceolate and half as long as the lateral lobes (vs. middle lobe deltoid, about a third as long as the lateral lobes or less), a raised callus at the base of each lateral lobe (vs. callus absent), spur gradually attenuate toward the apex (vs. spur clavate). Platanthera milinensis is similar to P. stenochila by sharing small green flowers and lip without a spur, but differs in having a creeping rhizome, a corymbose inflorescence, and a broadly ovate and slightly 3-lobed lip. Ponerochis gongshanensis is similar to P. faberi in its small flowers, but differs in having a linear leaf c. 3 mm wide (vs. leaf 5–13 mm wide), in the lip having collar-like raised margins on the sides of the spur entrance, and a mid-lobe which is notched at the apex but not divided into two divergent lobules that are nearly as large as the lateral lobes, as in P. faberi. All the proposed species obtained high support in phylogenetic analysis as new species. The recently described genus Apetalanthe is reduced to synonymy of Ponerorchis and a new combination is made.
format	article
author	Dong-Liang Lin Ji-Dong Ya André Schuiteman Chong-Bo Ma Cheng Liu Xue-Lian Guo Shi-Si Chen Xi-Long Wang Zhi-Rong Zhang Wen-Bin Yu Xiao-Hua Jin
author_facet	Dong-Liang Lin Ji-Dong Ya André Schuiteman Chong-Bo Ma Cheng Liu Xue-Lian Guo Shi-Si Chen Xi-Long Wang Zhi-Rong Zhang Wen-Bin Yu Xiao-Hua Jin
author_sort	Dong-Liang Lin
title	Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China
title_short	Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China
title_full	Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China
title_fullStr	Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China
title_full_unstemmed	Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China
title_sort	four new species and a new record of orchidinae (orchidaceae: orchideae) from china
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/666de28707234dd58eef3a5470790968
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Four new species and a new record of Orchidinae (Orchidaceae: Orchideae) from China

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