Compilation
Pteleopsis obovata

Tree up to 30 m. high (Semsei 847), more often 8–20 m., sometimes a shrub; wood red, very hard; bark grey or yellow-grey; young branchlets reddish brown, often pendulous, pubescent at first, soon glabrescent. Leaves opposite or subopposite; lamina elliptic to very narrowly elliptic or obovate-elliptic, up to 9.5 cm. long and 3 cm. wide, apex slightly acute or bluntly acuminate, base cuneate, dark green and usually shiny above, usuallyglabrous except for pubescence on the midrib; lateral nerves 6–9 pairs; petiole up to 1 cm. long, rather slender, usually pubescent. Inflorescence of axillary subcapitate racemes up to 4.5 cm. long. Flowers white or yellow, fragrant; hermaphrodite flowers usually towards the apex of the inflorescence, 5-merous, pedicellate; ♂flowers usually towards the base of the inflorescence, similar to the hermaphrodite flowers (style present) except that the ovary does not develop. Lower receptacle ± 5 mm. long, slender, glabrous; upper receptacle shallowly campanulate, 2.5–3 mm. in diameter, glabrous. Sepals shallowly triangular. Petals obovate to subcircular, 1.5–2.5 mm. long, 1.0–2 mm. wide, shortly clawed, glabrous. Stamens 2-seriate, antipetalous ones 4.5–5 mm. long, antisepalous ones 3.5–4 mm. long; anthers 0.7–0.8 mm. long. Disk 2.5–3 mm. in diameter, pilose, with a short free margin. Style 5–6 mm. long. Fruit 2–3-, sometimes 4- and very rarely 5-winged, very variable in size and shape, 1–3 cm. long, 0.5–1.8 cm. wide, generally emarginate at the apex and usually without or with a very short apical peg, base decurrent into the stipe and often oblique; stipe up to 15 mm. long, very slender. Fig. 10, p. 71.