KEY TO THE VARIETIES

1	Fruits 1.5-2.5 by 1-1.5 cm; dry pericarp 1—2(—3) mm thick. Horsfieldia tuberculata var. tuberculata
1'	Fruits 2.7-3.7 by 1.7-2.5 cm; dry pericarp 3-8 mm thick. Horsfieldia tuberculata var. crassivalva