| 1 | Leaflets below glabrous or sericeous on basal part of midrib |
| 1' | Leaflets below hirsute or villose on basal part of midrib |
| 2 | Leaflets with very distinct venation, apex cuspidate to caudate. Sepals 1.3-2.3 by l.2-2 mm. Petals 2.8-4.3 by 2.2-2.5 mm, apex acute. Arillode with a curled basal appendix. Hairs absent below placenta |
| 2' | Leaflets with distinct venation, apex acuminate to caudate. Sepals 0.7-1.7 by 0.7-1.8 mm. Petals 1.3-3.5 by 1.1-3 mm, apex truncate. Arillode with a straight appendix. Hairs below placenta |
| 3 | Leaves 1-5-jugate; petiolule up to 11 mm long. Leaflets ovate to elliptic, 3-18.3 by 1.2-7 cm, slightly to densely pilose |
| 3' | Leaves (1-)2-7-jugate; petiolule a pulvinus only. Leaflets ovate, 0.9-4.2 by 0.3-1.8 cm, densely pilose |
| 4 | Leaflets punctate or not, with or without domatia; nerves at base marginally looped or not. Petals 1.1-2.5 by 0.8-2 mm, claw 0.1-0.5(-1.3) mm high; crest on scales absent (Fig. 71c) to well-developed (Fig. 71a). Fruit with a 3.5-4.5 mm high stipe |
| 4' | Leaflets punctate, usually with shallow domatia; nerves marginally looped. Petals 2.6-2.8 by 2.4-2.8 mm, claw c. 0.7 mm high; crest on scales well-developed (Fig. 71a). Fruit with a 5-9 mm high stipe |
| 5 | Crest on petal scales absent (Fig. 71c) or slightly developed (Fig. 71a). Leaflets often with shallow domatia |
| 5' | Crest on petal scales large (Fig. 71a). Leaflets seldom with domatia |
| 6 | Leaflets ovate to elliptic, 3.7-17.2 by 1.5-5.5 cm, with shallow domatia below; apex acuminate to cuspidate (to caudate). Sepals 1.5-3 by 1-1.8 mm. Petals 1.3-2.5 by 1-2 mm, margin auriculate near claw (Fig. 71a) |
| 6' | Leaflets ovate (to elliptic), 3-8 by 1.8-4 cm, domatia absent; apex acuminate. Sepals 1.2-1.8 by 0.6-0.8 mm. Petals 1.1-1.4 by 0.8-1 mm, margin not auriculate near claw (Fig. 71b-d) |
