Hoya pyrifolia (Apocynaceae), a new species from south-western Yunnan, China

Hoya pyrifolia, a new species of Apocynaceae from Yunnan Province, China, is described and illustrated. Results from phylogenetic analyses, based on combined DNA fragments of the nuclear ribosomal external transcribed spacer (ETS), intergeneric transcribed spacer (ITS) and three plastid DNA fragment...

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Detalles Bibliográficos
Autores principales: Huang, Er-Feng, Yao, Gang, Jiang, Ri-Hong, Yang, Lei-Lei, Xi, Wang, Zhang, Zhong-Shuai, Zhang, Xian-Chun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2021
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7979681/
https://www.ncbi.nlm.nih.gov/pubmed/33776525
http://dx.doi.org/10.3897/phytokeys.174.60137
Descripción
Sumario:Hoya pyrifolia, a new species of Apocynaceae from Yunnan Province, China, is described and illustrated. Results from phylogenetic analyses, based on combined DNA fragments of the nuclear ribosomal external transcribed spacer (ETS), intergeneric transcribed spacer (ITS) and three plastid DNA fragments (matK, psbA-trnH and trnT-trnL), showed that the new species was nested within a clade, including Hoya species distributed in the subtropical foothills of the Himalayas and the Tibet-Sichuan Plateau. Morphologically, the new species can be distinguished from its close relatives by its pyriform and slightly pubescent leaves, as well as the 4-flowered inflorescences.

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