Ormocarpum neocaledonicum Arbainsyah, 2024

Adema, F., 2024, The genus Ormocarpum (Fabaceae - Papilionoideae) in Malesia and the Pacific, Blumea 69, pp. 27-35 : 31

3. Ormocarpum neocaledonicum Arbainsyah , sp. nov.

Petioles,rachises and pedicels sericeous,hairs bulbous-based.Calyx 6–13 mm long. Standard: blade 7–12 by 6–10 mm. Wings not sculptured. Ovary with bulbous-based hairs. — Type: Pancher s.n. (holo K [ K000264775 ]!; iso K [ K000264774 ]!, L [ L 0419953 ]!), Nouvelle Calédonie .

Treelets or shrubs, 2–8 m high, 15–40 cm diam. Twigs terete, 4–7 mm diam, sericeous when young, later glabrous. Stipules triangular, 2–3 by 1–1.6 mm, outside glabrous, margin ciliate, inside hairy at the base, often caducous. Leaves with 7–15 leaflets. Petioles 2– 6 mm long, sericeous to ± hirsute, hairs usually bulbous-based; rachis mostly as the petiole, 10–47 mm long; pulvinus 0.5–1.5 mm long. Leaflets: terminal one (broadly) obovate, 4–15 by 3–8.5 mm, 1.2–2.2 times as long as wide, base rounded to cuneate, apex rounded or emarginate, apiculate, upper surface glabrous, lower surface glabrous or with few hairs on midrib, midrib and nerves flat above, nerves 4 –7 per side, 0.5–1.8 mm apart, venation mostly ± darker than the rest of the surface, midrib sometimes whitish; lateral leaflets mostly as the terminal one, obovate to elliptic, 5–16 by 3–7.5 mm, 1.3–2.1 times as long as wide; pulvinus 0.4–1 mm long. Bracts to the flowers broadly ovate to triangular, 1–2 by 0.5–1.6 mm, outside glabrous to hairy, margin ciliate, inside with few hairs at the base. Pedicels 0.5–11 mm long, (thinly) sericeous to hirsute, often also with bulbous-based hairs. Bracteoles elliptic to orbicular, 0.6–2.1 by 0.3–2 mm, outside glabrous or with some hairs at the apex, margin ciliate, inside glabrous or with some hairs at the base. Calyx 6–13 mm long, tube 3–11 mm long; teeth of upper lip semicircular or triangular, 0.3–1.5 by 0.5–3 mm; lateral teeth semicircular to triangular, 0.5–3 by 1–3 mm, median tooth broadly elliptic to triangular, 1.5–4.5 by 1.7–3.5 mm; outside glabrous to sericeous, inside glabrous. Corolla pinkish. Standard: claw 1–5 mm long; blade orbicular, 7–12 by 6–10 mm, apex rounded or emarginate, without or with inconspicuous callosities, both sides glabrous, ciliate at apex. Wings: claw 2– 6 mm long; blade obovate or broadly elliptic, 7–11.5 by 3–6 mm, apex rounded, not sculptured outside, au- ricles up to 0.3 mm long, both sides glabrous, ciliate at apex. Keel petals: claw 3–6 mm long; blade obovate to ‘boat-shaped’, 6–14 by 3–9 mm, both sides glabrous. Stamens all in an open sheet, in upper part split into two bundles of 5 each, when older totally split, tube 4–20 mm long, free part 2–11.5 mm long, glabrous; anthers 0.6–1.3 by 0.3–0.7 mm, glabrous. Disc 0.2–0.8 mm long, glabrous. Ovary 5–13 mm long, hirsute with bulbous-based hairs; stipe 1–6 mm long, glabrous to hirsute with bulbous-based hairs; ovules 3–7; style 2.7–9 mm long, glabrous or with some hairs at the base. Pods strap-like, beak c. 5 mm long, articles flattened ellipsoid, 12–25 by 6–8 mm, with bulbous-based hairs. Seeds flattened ellipsoid, 5 –7 by 1.5–4 by c. 0.2 mm; hilum 0.5–0.7 mm long.

Distribution — New Caledonia.

Habitat & Ecology — Along the coast, in sclerophyll coastal forest or secondary forest. Soil: ultrabasic.Altitude: up to 20 m. Flowering: May, August, September; fruiting: May, August.

Note — Pancher s.n. (‘comm. M. Thorel. 3.1870.’, Herb. Hookerianum (= K)) mounted on the same sheet as Vieillard 398 might be a part of the type material of O. neocaledonicum .