Cyathocalyx deltoideus (Airy
Shaw) R.J. Wang & R.M.K. Saunders
(Latin for 'triangular shaped')
Drepananthus carinatus var. deltoideus Airy Shaw
Mid-canopy tree up to 33 m tall and 60 cm dbh. Stipules absent. Leaves
alternate, simple, penni-veined. Flowers with ca. 45 mm long, narrow petals,
pale yellow, fragrant, placed on the twigs. Fruitlets ca. 15 mm long,
green-brown, placed in apocarp, fruitlets with several seeds.
In undisturbed mixed dipterocarp forests up to 550 m altitude. Spread
throughout the forest, from swamps, to riversides, to hillsides and ridges.
Growing on sandy-loam soils. In secondary forests usually present as a
The timber is used for construction work.
Sumatra and Borneo (Sarawak, Brunei, Sabah, West- and East-Kalimantan).
Borneo: Balan, Empuji, Galapa'n ligoh, Kaju kapok, Mandap, Merpisang, Selamok.