Begonia mariachristinae Wahlsteen (2018: 161)

Aung, Aung, Wahlsteen, Eric, Chen, Wen-Hong & Shui, Yu-Min, 2023, Begonia chenii, a synonym of B. mariachristinae (Begoniaceae) in Myanmar, Phytotaxa 589 (1), pp. 97-100 : 99

Begonia mariachristinae Wahlsteen (2018: 161) .

Type:— MYANMAR. Kachin State: between 27.680652 –27.714888 N, 97.392283–97.396161E, 550–613 m, 7 November 2016, specimens pressed from cultivated plants on 24 November 2017, E. Wahlsteen EW16003 (holotype LD). = Begonia chenii Maw et al. (2020: 204) syn.nov. Type:— MYANMAR. Kachin State: Putao District, on the way from Putao to Upper Shankhaung , in tropical rain forest, 27°25’36.87”N, 97°16’13.56”E, 512 m, 4 May 2017, Y.H. Tan, B. Yang, H.B. Ding, X.D. Zeng, M.B. Maw & T.S. Tin M1378 (holotype HITBC; isotype RAF) .

Distribution and ecology:— The species is distributed in Putao District, Kachin State, Myanmar. It grows in the shaded environment of rainforest, alt. around 500 m. Flowering is from April to May and fruiting is from May to June.

Specimens examined:— MYANMAR. Kachin State: Putao District: Upper Shankhaung, in tropical montane forest, 27°25’36.87”N, 97°16’13.56”E, 512 m, 4 May 2017, Y.H. Tan, B. Yang, H.B. Ding, X.D. Zeng, M.B. Maw & T.S. Tin M1379 ( HITBC); Upper Shankhaung , 27°25’35”N, 97°16’14”E, 500 m, 29 April 2016, Y.H. Tan & S.S. Zhou M201627 ( HITBC); Upper Shankhaung , 27°25’34”N, 97°16’13”E, 520 m, 7 May 2017, S.S. Zhou & X.D. Zeng M2030 ( HITBC; RAF); Putao between 27.680652–27.714888N, 97.392283–97.396161E, 550–613 m, 7 November 2016, specimens pressed from cultivated plants on 24 November 2017, E. Wahlsteen EW16003 ( LD [holotype of B. mariachristinae ]) .