Lophopetalum javanicum (Zoll.) Turcz., Bull. Soc. Nat. Hist. Mosc. 36, i (1863)

Synonyms
Hippocratea maingayi (non Laws.) Vidal
Lophopetalum celebicus Koord.
Lophopetalum fimbriatum (non Wight) F. Vill.
Lophopetalum fuscescens Kurz
Lophopetalum intermedium Ridl.
Lophopetalum oblongifolium King
Lophopetalum oblongum King
Lophopetalum paucinervium Merr.
Lophopetalum toxicum Loher
Solenospermum javanicum Zoll.
Solenospermum oblongifolius Loes.
Solenospermum paucinervium Loes.
Solenospermum toxicum Loes.

Description
Emergent tree up to 56 m tall and 125 cm dbh. Stipules dropped early. Leaves opposite, simple, penni-veined. Flowers ca. 6 mm in diameter, white-yellow, placed in panicles. Fruits ca. 72 mm long, green-brown, dehiscent capsules filled with wind dispersed winged seeds (wing completely enclosing seed).

Ecology
In undisturbed forests up to 1000 m altitude. Growing both in alluvial (swamps, periodically inundated, riversides) and dry places (hillsides and ridges) on clayey to sandy soils. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The bark is used as a constituent of dart poison. The timber is used for plywood and panelling.

Distribution
Thailand, Peninsular Malaysia, Sumatra, Java, Borneo (Sarawak, Brunei, Sabah, Central-, South- and East-Kalimantan), Philippines, Celebes, Moluccas and New Guinea.

Local names
Borneo: Agar agar, Bajan, Bura, Dampal, Dual, Jerenjang, Kayu api, kayu malam perempuan, Kejo woos, Ketapang, Marandai, Maratemon, Medang bora, Medang tolei, Memagahar, Penjolawat, Perupuk gunung, Pisang pisang, Porupok, Ranau, Sang, Sarung sarung, Seraya puteh, Takau, Tanggom apui, tapatung, Tulang.