An enumeration of Sabah Passifloraceae, with a revised key to Adenia species.
An annotated enumeration of the five wild species of Passifloraceae in Sabah (four in Adenia, one in Passiflora) is presented. Introduced and naturalised species of Passiflora are mentioned. Adenia heterophylla (Blume) Koord. is new for Sabah, as well as Adenia macrocarpa (Blume) Koord. forma microcarpa (Hallier f.) W.J. de Wilde, a new form.