1Petals in the ♂ flowers practically free, i.e. united only at the base.
1'Petals in the ♂ flowers united into a tube for about their lower ⅔ (the tube at least 3 mm long).
2Indument on the undersurface of ± mature leaves consisting almost exclusively of rather sparse to more dense manifestly appressed stiff hairs.
2'Indument on the undersurface of ± mature leaves consisting exclusively either of numerous fine and soft ± erect hairs, or of both such hairs and more robust, stiff and generally ± appressed (rarely obliquely spreading) hairs of various density.
3Flowers 5-merous. Pedicels of the ♂ flowers swollen and ± plate-like dilated distally when the flower has gone. ♀ Flowers without staminodes. Veinlets of leaves rather faintly reticulate.
3'Flowers 4-merous. Pedicels of ♂ flowers not swollen distally. ♀ Flowers whether or not with 4 staminodes. Veinlets of leaves strongly reticulate.
4Flowers 4-merous. Hairs on undersurface of leaves rather sparse. Petals present in ♀ flowers. Drupe 2.5-3 by 1.5 by 1 cm.
4'Flowers 5-merous. Hairs on undersurface of leaves (rather) dense. Petals absent in ♀ flowers. Drupe up to 2 by 1.2(-1.5) by 1 cm.
5Drupe oblong-ellipsoid, ± obtuse at both ends, 1.2-1.5 by 0.8-1.2 by 0.8-1 cm.
5'Drupe larger.
6Drupe oblong-ovoid, apex broadly obtuse, base narrowed, 2.8-3.3 by 1.3-1.5 by 0.8-1.2 cm; crustaceous endocarp laxly coarsely lacunose.
6'Drupe almond-like, 2.3-3.5(-4.5) by 1.6-2 by 0.7-1 cm; crustaceous endocarp with several longitudinal shallow furrows and numerous flattish warts.