Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale

This research provides a description and illustrations for a new species from the Phong Nha-Ke Bang National Park, Cynanchum quangbinhense. The distribution, habitat, phenology and conservation assessment for the species are also presented. The new species differs from closely related species, C. ov...

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Autores principales:	Van The Pham, Thanh Trang Pham, Ngoc Bon Trinh, Sinh Khang Nguyen, Minh Truong Dao, Maxim S. Nuraliev
Formato:	article
Lenguaje:	EN
Publicado:	National Taiwan University 2021
Materias:	cynanchum kwangsiense c. ovalifolium conservation indochina iucn national park taxonomic key Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/101aede50fdc4e39967fae4398c99753
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spelling	oai:doaj.org-article:101aede50fdc4e39967fae4398c997532021-11-26T01:33:07ZCynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale10.6165/tai.2021.66.4590372-333Xhttps://doaj.org/article/101aede50fdc4e39967fae4398c997532021-10-01T00:00:00Zhttps://taiwania.ntu.edu.tw/abstract.php?type=abstract&id=1783https://doaj.org/toc/0372-333XThis research provides a description and illustrations for a new species from the Phong Nha-Ke Bang National Park, Cynanchum quangbinhense. The distribution, habitat, phenology and conservation assessment for the species are also presented. The new species differs from closely related species, C. ovalifolium in many characters such as leaf shape, inflorescence type, fewer and smaller flowers, colour of petals, margins of the corona, and anthers appendages shape, and differs from C. kwangsiense in having small leaves, umbellate inflorescences, triangular sepals, retuse apex of petals, and plicate margin of corona. Our discovery raises the known species of this genus in Vietnam to seven. In addition, a key to species of Cynanchum in Vietnam, and notes on morphological variation of C. officinale are presented in this paper.Van The PhamThanh Trang PhamNgoc Bon TrinhSinh Khang NguyenMinh Truong DaoMaxim S. NuralievNational Taiwan Universityarticlecynanchum kwangsiensec. ovalifoliumconservationindochinaiucnnational parktaxonomic keyBiology (General)QH301-705.5ENTaiwania, Vol 66, Iss 4, Pp 459-465 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cynanchum kwangsiense c. ovalifolium conservation indochina iucn national park taxonomic key Biology (General) QH301-705.5
spellingShingle	cynanchum kwangsiense c. ovalifolium conservation indochina iucn national park taxonomic key Biology (General) QH301-705.5 Van The Pham Thanh Trang Pham Ngoc Bon Trinh Sinh Khang Nguyen Minh Truong Dao Maxim S. Nuraliev Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale
description	This research provides a description and illustrations for a new species from the Phong Nha-Ke Bang National Park, Cynanchum quangbinhense. The distribution, habitat, phenology and conservation assessment for the species are also presented. The new species differs from closely related species, C. ovalifolium in many characters such as leaf shape, inflorescence type, fewer and smaller flowers, colour of petals, margins of the corona, and anthers appendages shape, and differs from C. kwangsiense in having small leaves, umbellate inflorescences, triangular sepals, retuse apex of petals, and plicate margin of corona. Our discovery raises the known species of this genus in Vietnam to seven. In addition, a key to species of Cynanchum in Vietnam, and notes on morphological variation of C. officinale are presented in this paper.
format	article
author	Van The Pham Thanh Trang Pham Ngoc Bon Trinh Sinh Khang Nguyen Minh Truong Dao Maxim S. Nuraliev
author_facet	Van The Pham Thanh Trang Pham Ngoc Bon Trinh Sinh Khang Nguyen Minh Truong Dao Maxim S. Nuraliev
author_sort	Van The Pham
title	Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale
title_short	Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale
title_full	Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale
title_fullStr	Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale
title_full_unstemmed	Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale
title_sort	cynanchum quangbinhense (apocynaceae: asclepiadoideae), a new species from vietnam, and additional information on c. officinale
publisher	National Taiwan University
publishDate	2021
url	https://doaj.org/article/101aede50fdc4e39967fae4398c99753
work_keys_str_mv	AT vanthepham cynanchumquangbinhenseapocynaceaeasclepiadoideaeanewspeciesfromvietnamandadditionalinformationoncofficinale AT thanhtrangpham cynanchumquangbinhenseapocynaceaeasclepiadoideaeanewspeciesfromvietnamandadditionalinformationoncofficinale AT ngocbontrinh cynanchumquangbinhenseapocynaceaeasclepiadoideaeanewspeciesfromvietnamandadditionalinformationoncofficinale AT sinhkhangnguyen cynanchumquangbinhenseapocynaceaeasclepiadoideaeanewspeciesfromvietnamandadditionalinformationoncofficinale AT minhtruongdao cynanchumquangbinhenseapocynaceaeasclepiadoideaeanewspeciesfromvietnamandadditionalinformationoncofficinale AT maximsnuraliev cynanchumquangbinhenseapocynaceaeasclepiadoideaeanewspeciesfromvietnamandadditionalinformationoncofficinale
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Cynanchum quangbinhense (Apocynaceae: Asclepiadoideae), a new species from Vietnam, and additional information on C. officinale

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