Ormocarpum philippinense Arbainsyah, 2024

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

4. Ormocarpum philippinense Arbainsyah , sp. nov. — Fig. 2k– n

Petioles and rachises glabrous or with bulbous-based hairs, pedicels gla- brous. Calyx c. 7 mm long. Standard: blade c. 12 by 13 mm. Wings sculp- tured. Ovary with bulbous-based hairs. — Type: Cuming 1849 (holo L!; iso K!), Philippines, Bohol .

Shrub. Twigs terete, c. 4 mm diam, glabrous. Stipules triangular, c. 5 by 2 mm, both sides glabrous. Leaves with 13 leaflets. Petiole c. 10 mm long, glabrous or with few bulbous-based hairs; rachis c. 72 mm long, with some bulbous-based hairs; pulvinus c. 2 mm long. Leaflets: terminal one narrowly obovate, 24 –25 by 7–8 mm, 3–3.1 times as long as wide, base cuneate, apex rounded, apiculate, upper surface glabrous, lower surface glaucous, with some appressed hairs, mainly along midrib, midrib and nerves ± flat above, nerves c. 6 per side, 3–4.2 mm apart, venation ± similar in colour as the rest of the surface; lateral leaflets mostly as the terminal one, narrowly elliptic, 14–27 by 4–9 mm, 2.7–3.7 times as long as wide; pulvinus c. 1 mm long. Bracts to the inflorescence broadly ovate, c. 1 by 0.6 mm, outside glabrous, inside the base with very few short hairs. Pedicels c. 15 mm long, glabrous. Bracteoles circular, c. 1.2 by 1.1 mm, both sides glabrous. Calyx c. 7 mm long, tube c. 6 mm long; teeth of upper lip deltoid, c. 2.6 by 2.1 mm; lateral teeth triangular, c. 5 by 3.5 mm, median tooth triangular, c. 4 by 3.5 mm; both sides glabrous. Standard: claw c. 2 mm long; blade orbicular, c. 12 by 13 mm, apex emarginate, 2 ba- sal callosities, both sides glabrous. Wings: claw c. 4 mm long; blade obovate, c. 12 by 8 mm, outside sculptured, both sides glabrous. Keel petals: claw c. 6.5 mm long; blade ‘boat-shaped’, c. 13 by 8 mm, auricles c. 1 mm long, both sides glabrous. Stamens 2 bundles of 5 each, tube 5 –7 mm long, free part 9–10 mm long, glabrous; anthers c. 2 by 1 mm, glabrous. Disc c. 1 mm long, glabrous. Ovary c. 7 mm long, with bulbous-based hairs; stipe c. 2.5 mm long, glabrous; ovules 2; style c. 10 mm long, glabrous. Pods young, articles flattened ellipsoid, c. 15 by 4 mm, with bulbous-based hairs, beak c. 9 mm long.

Distribution — Philippines (Bohol).

Notes — 1. In size of leaflets and indumentum of petiole and rachis similar to O. cochinchinense , but different in the smaller flowers, the sculptured wings and the bulbous-based hairs of the ovaries and pods.

2. In several characters similar to O. fijiense , mainly different in the size of the flowers (Table 1).

Figures

Fig. 2 Details of flowers and fruits of Ormocarpum species.a–c. O. sennoides (Willd.) DC. subsp. sennoides. a. Wing;b. ovary: c. fruit. — d, e. O. vanuatense Arbainsyah. d. Stamens, 9 + 1; e. ovary. — f–j. O. smitsii Arbainsyah.f. Leaflet;g. wing; h. stamens, 9 + 1; i. ovary; j. fruit. — k–n. O. philippinense Arbainsyah. k. Wing; l. stamens, 2 bundles of 5, not fully split; m. fruit; n. ovary (a, b: Jacobs 4896; c. Schmutz 2190; d, e: Berry 27; f–j: Jaag 922; k, m, n: Cuming 1849; l: Clemens 17870; all L).). — Drawing by Anita Walsmit Sachs.