Ormocarpum fijiense Arbainsyah, 2024

2. Ormocarpum fijiense Arbainsyah , sp. nov.

Petioles, rachises and pedicels glabrous. Calyx c. 3.5 mm long. Standard: blade c. 5 by 5 mm. Wings not sculptured outside. — Type: US expedition s.n. (holo K!), Fiji .

Twigs terete,c. 3 mm diam,glabrous. Stipules caducous. Leaves with 9 leaflets. Petiole c. 4 mm long, glabrous; rachis c. 28 mm long, glabrous; pulvinus c. 1 mm long. Leaflets: terminal one obovate, c. 20 by 12 mm, c. 1.6 times as long as wide, base acute, apex rounded, apiculate, upper surface glabrous, lower surface glabrous, nerves sunken above, 6 or 7 per side, c. 2.2– 2.3 mm apart, venation darker than the rest of the surface; lateral leaflets mostly as the terminal one, c. 18 by 10 mm, 1.8 times as long as wide; pulvinus c. 1 mm long. Bracts to the flowers broadly ovate, c. 1.4 by 0.4 mm, both sides glabrous. Pedicels c. 2.7 mm long, glabrous. Bracteoles triangular, c. 2 by 1.2 mm, both sides glabrous. Calyx c. 3.5 mm long, tube c. 3 mm long; teeth of upper lip triangular, c. 1.8 by 1 mm; lateral lobes triangular, c. 3 by 1 mm, median lobe triangular, c. 4 by 1.7 mm; both sides glabrous. Standard: claw c. 1.3 mm long; blade orbicular, c. 5 by 5 mm, apex rounded, 2 basal cal- losities, both sides glabrous. Wings: claw c. 1.5 mm long; blade ‘boat-shaped’, c. 5 by 3 mm, apex rounded, both sides glabrous, not sculptured outside. Keel petals: claw c. 2.3 mm long; blade ‘boat-shaped’, c. 4.5 by 3 mm, both sides glabrous. Stamens united in an open sheet, in upper part split into two bundles of 5 each, tube 3.5–4.5 mm long, free part 1.5–3.5 mm long, glabrous; anthers c. 0.8 by 0.5 mm, glabrous. Disc c. 0.3 mm long, glabrous. Ovary c. 1.6 mm long, with bulbous-based hairs; stipe c. 1 mm long, with bulbous-based hairs; ovules 2; style c. 1.4 mm long, glabrous. Pods and seeds unknown.

Distribution — Fiji.

Note — Only known from the type. Ormocarpum fijiensis is similar to O. cochinchinensis in the size of the leaflets, the glabrous petiole, rachis and pedicel. The new species is similar to O. sennoides in the presence of bulbous-based hairs at the ovary. Ormocarpum fijiensis differs from the two other species in the much smaller flowers (Table 1).