KEY TO THE SPECIES (based on fruit characters)

1Fruit pilose inside
1'Fruit glabrous inside
2Sarcotesta present only basally around hilum
2'Sarcotesta covering seed except for (part of) dorsal side
3Upper part of pedicels sericeous. Sarcotesta with well developed obpyramidal basal outgrowth
3'Upper part of pedicels glabrous except for some glandular hairs. Sarcotesta with inconspicuous obpyramidal basal outgrowth
4Fruit 3.2-4.5 by 1.7-2.4 cm
4'Fruit 1.3-2.5 by 0.8-1.6 cm
5Fruit long pilose inside, hairs c. 1.5 mm long. Sarcotesta covering seed except for small dorsal triangular part (Fig. 50b)
5'Fruit short pilose inside, hairs c. 0.5 mm long. Sarcotesta covering seed except for dorsal side (Fig. 50g)