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Issue: Vol. 255 No. 3: 11 April 2016
Type: Article
Published: 2016-04-11
DOI: 10.11646/phytotaxa.255.3.9
Page range: 274–280
Abstract views: 15
PDF downloaded: 1

A new record of the genus Yua (Vitaceae) from Vietnam

State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China University of Chinese Academy of Sciences, Beijing 100049, China Sino-African Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
ustralian National Herbarium, Centre for Australian National Biodiversity Research, CSIRO, GPO Box 1600, Canberra 2601, Australian Capital Territory
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Sino-African Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
Vitaceae Yua Yua austro-orientalis New record Vietnam Parthenocissus Eudicots

Abstract

Yua C.L. Li (Vitaceae), a genus previously known from China, Nepal and India, is newly recorded from Vietnam. A specimen discovered in the rainforest of Lao Cai province, northern Vietnam was identified as Yua austro-orientalis (F.P. Metcalf) C.L. Li based on both morphological and molecular data. To improve our understanding of relationships between Yua and Parthenocissus Planch., we present diagnostic characteristics for these two genera. We discuss leaf, stem and seed features used to distinguish between Y. austro-orientalis and Y. thomsonii (M.A. Lawson) C.L. Li, a species widely distributed in China, Nepal and northern India. The opportunity is taken to review the typification of all Yua taxa. A lectotype is selected for Vitis thomsonii M.A. Lawson.