Bridson (Hiern) No year - Bridson DM (1985) The Reinstatement of Psydrax (Rubiaceae, subfam. Cinchonoideae Tribe Vanguerieae) and a Revision of the African Species. Kew Bulletin 40(4): 687-725. doi: 10.2307/4109853.
There is no corrections for Psydrax livida yet.