Begonia holostyla, A New Species of Peltate-leaved Begoniaceae from the Karst Region of Northern Vietnam

doi:10.7525/j.issn.1673-5102.2022.04.001

Bulletin of Botanical Research ›› 2022, Vol. 42 ›› Issue (4): 521-527.doi: 10.7525/j.issn.1673-5102.2022.04.001

Begonia holostyla, A New Species of Peltate-leaved Begoniaceae from the Karst Region of Northern Vietnam

Wenhong CHEN¹^,⁸^,⁹, Jinxiu LI², Quang-Hieu NGUYEN³, Sinh-Khang NGUYEN⁴, Van-The PHAM⁵^,⁶, Changli FAN¹^,⁸^,⁹, Jianying XIANG⁷, Yumin SHUI¹^,⁸^,⁹()

^1.CAS Key Laboratory for Plant Diversity and Biogeography of East Asia，Kunming Institute of Botany，Chinese Academy of Sciences，Kunming，China 650201
^2.Kunming Botanic Gardens，Kunming Institute of Botany，Chinese Academy of Sciences，Kunming，China 650201
^3.Center for Plant Conservation of Vietnam（CPC），Vietnam Union of Science and Technology Associations，25/32 Lane 191，Lac Long Quan Rd. ，Hanoi 100000
^4.Institute of Ecology and Biological Resources，Vietnam Academy of Science and Technology，18 Hoang Quoc Viet Road，Cau Giay，Hanoi 100000
^5.Laboratory of Ecology and Environmental Management，Science and Technology Advanced Institute，Van Lang University，Ho Chi Minh，Vietnam
^6.Faculty of Technology，Van Lang University，Ho Chi Minh，Vietnam
^7.Yunnan Academy of Biodiversity，Southwest Forestry University，Kunming，China 650224
^8.Karst Conservation Initiative of Yunnan，Kunming，China 650201
^9.Tropical Mountain Forest Eco-station in Southeast Yunnan （TFEY），Pingbian，China 661200

Received:2021-09-22 Online:2022-07-20 Published:2022-07-15
Contact: Yumin SHUI E-mail:ymshui@mail.kib.ac.cn
About author:CHEN Wenhong（1975―），female，associate professor，major in taxonomy of plants.
Supported by:
National Natural Science Foundation of China(31770251)

Abstract

Abstract:

A new peltate-leaved species of the genus Begonia（Begoniaceae）， B. holostyla， was described and illustrated by photos. The new species was similar to B. pulvinifera in its peltate leaves and black dots on fruits， but differed in its styles combined to a half（vs combined at base）， lunate stigma without a spiraled band（vs 2-cleft in a spiraled band）. Additionally， the relationship of geographical distribution and morphology with the similar species， B. pulvinifera， was discussed.

Key words: Begonia sect. Coelocentrum, combined style, karst regions, peltate leaves, Vietnam

CLC Number:

Q949.759.7

Wenhong CHEN, Jinxiu LI, Quang-Hieu NGUYEN, Sinh-Khang NGUYEN, Van-The PHAM, Changli FAN, Jianying XIANG, Yumin SHUI. Begonia holostyla, A New Species of Peltate-leaved Begoniaceae from the Karst Region of Northern Vietnam[J]. Bulletin of Botanical Research, 2022, 42(4): 521-527.

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Begonia holostyla, A New Species of Peltate-leaved Begoniaceae from the Karst Region of Northern Vietnam

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