Ryparosa javanica (Blume) Kurz ex Koord. & Valeton

Tree 15-20(-30) m; bark grey to pale brown, rather smooth; branchlets appressed-rusty-tomentose apically, lower parts soon glabrescent, striate, light red-brown, later with a grey bark; lenticels sparse, oblong-elliptic. Leaves oblong or obovate-oblong, usually shortly (1-1.5 cm) acuminate, acute or obtuse at the base, olivaceous when dry, shining and glabrous above, yellowish on the lower surface when dry, young ones minutely pubescent beneath, mostly glabrous beneath when adult, ± subcoriaceous, variable in size, 12-35 (-45) by 4½-12(-14) cm; midrib mostly slightly impressed above, very prominent beneath, nerves 5-6 (in New Guinea sometimes up to 9) pairs, mostly curved-ascending rarely suberect, rather distant, nearly flat above, manifestly prominent beneath, veins ± distinctly transverse, reticulations fine, little but visibly prominent on both sides; petiole (1-)1.5-6 cm, pubescent or glabrescent, 1.5-2(-3) mm diam. Racemes all or for the greater part on defoliate twigs (very rarely also on old branches), 6-40(-70) cm, solitary or occasionally in fascicles of 2 or 3, densely subsericeous-rusty-tomentose; rhachis slender. Pedicels 2-3(-5) mm. Calyx lobes 3-4, ovate, acuminate, 2-2.5 mm. Petals 4-5, ovate-oblong, nearly 3 by 2 mm; scale nearly half as long as the petals, villous. ♂ Flowers: staminal column 3-4 mm. ♀ Flowers: staminodes pilose, without anthers, up to 1 mm. Ovary ovoid, somewhat contracted at apex and base, densely rusty-sericeous-tomentose, soon glabrescent, with 2(-3), thick, reflexed, sessile, broadly obovate or reniform stigmas. Fruit globose to depressed-globose, (1½-)2½-3 cm across, glabrous, dilute-brown and with slightly elevated lighter spots when dry, rather smooth (tubercles not or little prominent), crowned by 2 ± spaced stigmas or their rests; pericarp c. 1 mm thick, fragile; peduncle 5-8 mm. Seeds mostly 2, ± oblong, slightly curved, 1.5-2 cm long; aril fleshy, light-yellow.

Rain-forests, scattered, on not or only periodically inundated ground, 50-300, rarely up to 1100 m; fl. June-Jan., fr. May-Oct.

Uses. Wood yellowish brown.

Can be grown by seedlings.