| 1 | Inflorescences loosely flowered with slender branches, axillary or cauliflorous; tertiary veins densely reticulate, prominulous beneath stigmas 3, bifid, the lobes essentially equal, or obsolete. '. |
| 1' | Inflorescencs more om pact with stiff branches, axillary; tertiary veins parallel, widely reticulate or obsolete; stigmas 3, entire to bilobed, or obsolete. |
| 2 | Inflorescences cauliflorous or ramiflorous, solitary or a few together, 5-20 cm long, slen.derp du cle to 16 cm long; flowers 6-8 mm diam.; stigmas obsolete; fruit cyhndncal, to 16 cm long; pericarp woody; seeds 20-24. |
| 2' | Inflorescences axillary, to 9 cm long, branched from the base or with peduncle to 1 cm Ion; flC?wer.s 4-5 mm diam.; stigmas bifid, the 61obes essentially equal; fruit ellipsoid to 2.4 x 1.8 cm; pericarp leathery; seeds up to 6. |
| 3 | Stigmas obsolete. |
| 3' | Stigmas 3, entire, bilobed or bifid. |
| 4 | Leaves narrowly oblong or obovate, drying dark brown; apex cuspidately acuminate; secondary veins 7-11 per side; fruiting pedicel slender, 1-2 mm diam.; fruit ovoid to ellipsoid; pericarp thin-leathery, smooth. |
| 4' | Leaves elliptic, drying olivaceous-green above and brownish beneath; apex rounded or bluntly apiculate; secondary veins 5-7 per side; fruiting pedicel thickened to ca. 4 mm diam.; fruit ovoid to globose, stipitate; pericarp thick-coriaceous to woody, rugulose. |
| 5 | Leaves chartaceous to thin-coriaceous, narrowly elliptic; apex acuminate; stigmas entire. |
| 5' | Leaves coriaceous, elliptic or obovate, apex rounded, obtuse or shortly acuminate; stigmas entire or bilobed. |
| 6 | Stigmas entire. |
| 6' | Stigmas bilobed. |
| 7 | Pericarp leathery; fruit 3-5 x 5 cm. |
| 7' | Pericarp woody; fruit 8 x 10 cm. |
| 8 | Stigmas alternating with the stamens; flowers 2.5-3 mm diam.; leaf base usually acute, sometimes obtuse. |
| 8' | Stigmas opposite the stamens; flowers 4 mm diam.; leaf base usually rounded, sometimes acute. |
