KEY TO THE SPECIES OF MALESIA EXCEPT NEW GUINEA

1Domatia usually absent, if present inconspicuous, pocket-like, not hairy. Fruits 9-20 by 9-18 mm, wall 1.2-2.4(-3.7) mm thick. Sarcotesta 2-lobed
1'Domatia pocket-like or saccate, ciliate. Fruits 13-25 by 11-20 mm, wall 1.4-3.4 mm thick. Sarcotesta rounded, not lobed. (Inside of petals hairy. Anthers glabrous.)
2Apex of leaflets acute. Infructescences 3-10 cm long. Fruits 10-20 by 9-18 mm, rounded deltoid in cross section. (Inside of petals glabrous. Anthers hairy.)
2'Apex of leaflets obtuse to rounded. Infructescences 1.5-3 cm long. Fruits 9-10 by 9-10 mm, about circular in cross section