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Issue: Vol. 381 No. 1: 7 December 2018
Type: Article
Published: 2018-12-07
DOI: 10.11646/phytotaxa.381.1.17
Page range: 132–140
Abstract views: 29
PDF downloaded: 2

Reassessment of Begonia arboreta and B. sonlaensis (Begoniaceae) based on field observation and type examination

Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China Karst Conservation Initiative of Yunnan, Kunming 650201, Yunnan, China
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China University of Chinese Academy of Sciences, Beijing 100049, China
Center for Plant Conservation of Vietnam (CPC), Vietnam Union of Science and Technology Associations, 25/32 Lane 191, Lac Long Quan Rd., Hanoi, Vietnam
Faculty of Environment and Resource studies, Mahidol University (Salaya campus), Nakhon Pathom 73170, Thailand
Botanical Institute of the Russian Academy of Science, Prof. Popov Street, 2, RU-197376, St Petersburg, Russia
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar Karst Conservation Initiative of Yunnan, Kunming 650201, Yunnan, China
Begonia Indochina Karstic limestone Plant diversity Plant taxonomy Eudicots

Abstract

Due to the unavailability of specimens and publications in the past, some gaps exist in knowledge of similar species from various adjacent countries. After more recently detailed observations from field surveys and examinations on herbaria specimens, we confirmed the status of Begonia arboreta and B. sonlaensis as synonyms of B. garrettii and B. pseudodryadis from China and Thailand, and from China and Vietnam, respectively. The taxonomic treatment is based on the examination of both available herbarium specimens and living plants from different populations. Taxonomy revision of the allied species is very important for understanding plant diversity in the above neighboring countries.