Aganope balansae (Gagnep.) P. K.Loc.

         Trees, 4–15 m high. Twigs 4–8 mm diam., lenticellate, thinly pubescent or glabrescent in the lower part, upper part pubescent. Stipules caducous. Leaves with 5–9 leaflets; petiole 10–17 cm long, striate, glabrous; rachis ca. 20 cm long, striate, glabrous; pulvinus 1–1.5 mm long, glabrous, stipellae absent. Leaflets chartaceous to subcoriaceous, terminal one elliptic to obovate, 14.5–18 by 7.5–10.5 cm, length/width ratio 1.7–2, base obtuse to rounded, apex obtuse or shortly acuminate, acumen less than 5 mm long, emarginate, upper surface glabrous, lower surface glabrous or thinly sericeous, midrib slightly raised above, sometimes thinly sericeous, raised below, veins flattened or slightly raised above, raised below, 6–10 per side, 11–30 mm apart, not reaching the margin but curving towards the apex, sometimes anastomosing near the margin, venation reticulate; lateral leaflets mostly like terminal one, ovate to elliptic, 9.5–17 by 5.3–9.5 cm, length/width ratio 1.7–1.9; pulvinus 3–6 mm long, glabrous. Inflorescences axillary or terminal panicles, 17–35 cm long, peduncle up to 5 cm long, sericeous; lateral branches 3–6 cm long, sericeous. Bracts subtending lateral branches ovate, 2.5–3 by 1.5–2 mm, caducous, outside sericeous, inside glabrous; bracts subtending flowers elliptic or ovate, 1–1.5 by 0.5–1 mm, outside sericeous, inside glabrous. Pedicels 1–2 mm long, sericeous. Bracteoles caducous. Calyx cup-shaped, 4–5 mm high, outside sericeous, inside glabrous, upper lip with 2 short lobes, 0.2–0.25 by 3.5–4 mm, lateral lobes short and broadly triangular 0.2–0.5 by 3–3.3 mm, lower lobe shortly triangular, 0.2–0.3 by 3–3.5 mm. Corolla whitish. Standard: claw 2.5–3.5 mm long; blade ovate or orbicular, 13–15 by 13–14 mm, apex slightly emarginate, both sides glabrous, with basal callosities and thickened above the center of the petal. Wings: claw 1–2 mm long; blade elliptic, 8.5–9 by 2.5–2.8 mm, apex rounded, both sides glabrous, upper auricle ca. 0.5 mm, lower auricle indistinct, lateral pocket 2–4 mm or sometimes indistinct. Keel petals: claw 3.5–4 mm long; blade boat-shaped, 10.5–11 by ca. 4 mm, apex rounded, both sides glabrous, upper auricle 0.5–0.7 mm, lateral pocket 1.5–3 mm long. Stamens diadelphous, 10–11 mm long, free part 4–4.5 mm long, in two lengths, longer ones alternating with shorter ones, hairy in the upper part near anthers; anthers 1.5–1.7 by 0.5–0.7 mm, hairy. Disc 9 or 10 glands, up to 1 mm high, hairy. Ovary 6–8 mm long, stipe indistinct, sericeous; ovules 6–8; style 5–6 mm long, sericeous throughout. Pods strap-like, flattened, 9.5–21 by 3.2–4 cm, glabrous, with wings along both sutures, upper wing 8–10 mm wide, lower wing 5–8 mm wide; seed chamber absent. Seeds 1–3 per pod, narrowly bean-shaped, 23–25 by 10–12 by 1.5–2.5 mm; hilum eccentric, ca. 21 mm long.