| 1 | Lower surface of leaflets velutinous, without domatia |
| 1' | Lower surface of leaflets glabrous, or puberulous and usually glabrescent except sometimes on the midrib, nerves, and veins, with distinct, hairy domatia (rarely absent in P. motleyi). |
| 2 | Anthers bent towards the center and almost perpendicular to the filaments. Drupe ovoid or ovoid-oblong, 3-5 by 2-2¾ cm |
| 2' | Anthers erect. Drupe smaller, ellipsoid, 2-2½ by ¾-1 cm |
