Phutthai, T., Thananthaisong, T., Daonurai, K., Srisom, P., Suddee, S. and Hughes, M. 2021. Begonia sirindhorniana (Begoniaceae) a new species from Thailand. Thai Forest Bulletin (Botany). 49, 2 (Oct. 2021), 201–205. DOI:https://doi.org/10.20531/tfb.2021.49.2.07.