Begonia medogensis, a new species of Begoniaceae from Western China and Northern Myanmar

Jian-Wu Li1,*, Yun-Hong Tan1,2,*, Xi-Long Wang3,*,Cheng-Wang Wang4, Xiao-Hua Jin5

1 Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China 

2 South Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar 

3 Tibet Plateau Institute of Biology, Lhasa 850001, P.R. China 

4 School of Life Sciences, Nanchang University, Nanchang 330031, Jiangxi, P.R. China 5 Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P.R. China

* These authors contributed equally to this work.

PubYear : 2018

Volume: 103

Publication Name: PhytoKeys

Page number: 13-18

Abstract: Begonia medogensis JianW.Li, Y.H.Tan & X.H.Jin, a new species of Begoniaceae, is described and illustrated by colour photographs. Begonia medogensis is distributed in western China and northern Myanmar. It has erect stems, is tuberless, has many triangular to lanceolate leaves, base slightly asymmetric, margins remotely and irregularly denticulate; staminate flowers have 4 perianth segments, with outer 2 segments broadly ovate, inner 2 spathulate; pistillate flowers have 5 perianth segments, unequal, outer 4 broadly ovate, inner 1 spathulate. The new species is assigned to section Platycentrum and can easily be distinguished from the other species in the section.

Keywords: Begonia, Begonia medogensis, sect. Platycentrum, new species, China, Myanmar