Psydrax comprises ten species in Thailand. Here, four new species, Psydrax celatus, P. maxwellii, P. minoriflorus, and P. pilosus are described from Thailand, and one lectotype is designated. Psydrax abbreviatus is a new combination.

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doi.org/10.20531/tfb.2025.53.2.09
Thai Forest Bulletin (Botany)
Staff publications

Duyfjes, B., & de Wilde, W. (2025). One new combination and four new species of the genus Psydrax (Rubiaceae, Vanguerieae) in Thailand. Thai Forest Bulletin (Botany), 53(2), 67–75. doi:10.20531/tfb.2025.53.2.09