Solori thorelii (Gagnep.) Sirich. & Adema

         Lianas, basal diameter 2–4 cm. Bark thin, smooth, brown. Stipules narrowly triangular, 9–10 by 1–2 mm, apex acuminate, both sides slightly sericeous. Leaves with 13–19 leaflets; petiole 3.5–4.5 cm long, grooved above, sericeous to glabrescent, rachis 17–20 cm long, sericeous to glabrescent, pulvinus 4–6 mm long. Stipellae acicular, 2.5–3.5 mm long, glabrous or with some hairs. Leaflets chartaceous to subcoriaceous; terminal one narrowly obovate, 6–6.5 by 2–2.3 cm, length/width ratio 2.8–3, base cuneate, apex obtuse to slightly acuminate, acumen 0.2–0.5 mm long, mucronate, upper surface slightly sericeous or sometimes glabrescent, lower surface sericeous, midrib slightly sunken above, veins flat above, raised below, 9–12 per side, 3–5.5 mm apart, curving towards the apex, anastomosing near or sometimes at the margin, venation reticulate; lateral leaflets narrowly obovate or narrowly elliptic, 4–7.5 by 1.5–2.3 cm, length/width ratio 2.6–3.3, base rounded to cordate, apex obtuse to slightly acuminate with mucronate tip, above slightly sericeous or sometimes glabrescent, below sericeous, venation reticulate; pulvinus ca. 2 mm long. Inflorescences axillary pseudoracemes, rarely form into pseudopanicles, 3–6 cm long, striate, (thinly) sericeous; peduncle up to 1.5 cm long, striate, (thinly) sericeous. Bracts subtending brachyblasts narrowly ovate, 1.5–1.6 by 0.3–0.5 mm, outside sericeous, inside glabrous; bracts subtending flowers narrowly ovate to acicular, 1.5–4 by 0.2–0.4 mm, outside pubescent, inside glabrous. Brachyblasts knob-like, indistinct, 0.1–0.4 mm long, with 2 or 3 flowers. Pedicels 4.5–5 mm long, sericeous. Bracteoles on the upper part or at the top of the pedicels, narrowly ovate, 1.3–1.5 by 0.3–0.4 mm, outside pubescent, inside glabrous. Calyx greenish, 3–3.5 mm high, outside thinly sericeous, inside glabrous, tube 2.8–3 mm high; upper lobes triangular, 0.5–0.9 by 1.3–1.5 mm; lateral lobes triangular, 0.4–0.5 by 1.2–1.7 mm; lower lobe triangular, 0.7–0.8 by 1.5–1.7 mm. Corolla pale greenish-white. Standard: claw 1.5–1.7 mm long; blade elliptic or ovate, 11–12 by 9–11 mm, apex emarginate, basal callosities indistinct, both sides glabrous. Wings: claw 1.8–2 mm long; blade narrowly elliptic, 7.8–8 by 1.8–2 mm, apex rounded, auricle indistinct, lateral pocket ca. 0.5 mm long, both sides glabrous but thinly ciliate at the basal part. Keel petals: claw 2.3–2.5 mm long; blade boat-shaped, apex rounded, 6.3–6.5 by 2.5–2.7 mm, both sides glabrous, lateral pocket 1–2 mm long, auricle indistinct. Stamens monadelphous, with basal fenestrae, 9–10 mm long, free part of filaments 1.5–2 mm long, glabrous; anthers ca. 0.8 by 0.35 mm, glabrous. Disc annular, more or less distinctly 5-lobed, up to 0.5 mm high. Ovary hairy, 6–6.5 mm long, stipe ca. 1 mm long; ovules 7–12; style 2.5–3 mm long, hairy at base. Pods narrowly ovate to strap-like, 5–11 by ca. 2 cm, with thinly scattered appressed hairs especially along suture, thin, veined, wing along the upper suture only, ca. 2 mm wide; seed chamber usually visible from outside, membranous. Seeds ellipsoid, slightly flattened, 7.4–7.7 by 4–6 mm; hilum central, 1.5–1.7 mm long.