This name is a synonym.
Psychotria ovoidea (Pierre ex Pit.) P.H.Hô, Cayco Vietnam 3(1): 246 (1993), nom. illeg.
Psychotria vietnamensis Ruhsam, Bot. J. Linn. Soc. 157: 117 (2008).
Eumachia ovoidea (Pierre ex Pit.) Barrabé, C.M.Taylor & Razafim., Candollea 72: 313 (2017).