Volume 8 > Part 1 > Year 2005 > Page 254 > Euphorbiaceae > Elateriospermum

Elateriospermum tapos Blumewfo-0000948026

Bijdr. 2: 621. 1825; Ridl., Fl. Malay Penins. 3: 252. 1924; Backer & Bakh.f., Fl. Java 1: 496. 1963; Airy Shaw, Kew Bull. 26: 258. 1972; Whitmore, Tree Fl. Malaya 2: 91. 1973.

Accepted Name : This is currently accepted.

Description : Tree, 27(–50) m high, sometimes shortly fluted with buttressed up to 2 m high; crown monopodial. Stipules triangular, 2–3 mm long. Leaves: petiole 1–8 cm long; blade elliptic to obovate, 5–24 by 2–7.5 cm, length/width ratio 2.5–3.2, base obtuse to cuneate, apex abruptly acuminate to cuspidate; venation distinct, raised especially below, nerves 7–17 per side; young leaves red, Inflorescences up to 19 cm long, hairy, cymules 0.5–6 cm long; bracts triangular, 1–1.4 by 0.7–1 mm; peduncle 2–9 cm long. Flowers white to pale yellow, fragrant with unpleasant smell; buds white. Staminate flowers 2.4–3.5 mm in diam.; pedicel 2–7 mm long; sepals ovate, 2.5–6 by 2.2–5 mm, apex rounded, hairy outside; disc 0.8–1.3 mm long; stamens yellow, filaments 0.3–2 mm long, anthers ca 0.8–1.2 by 0.2–0.4 mm. Pistillate flowers 3.2–5.3 mm in diam.; pedicel 1.3–4.2(–50 in fruit) mm long, hairy; sepals ovate, 4.5–8 by 3.2–5.5 mm, disc 1–1.3 mm high; ovary 2.5–4 by 2–2.6 mm, densely hairy, style and stigma 0.3–0.5 mm long. Fruits oblong ellipsoid, longitudinally 3-grooved, 3.2–5.3 by 2.2–4.5 cm, glabrous, from green via red to dark brown. Seeds 3.2–3.6 by 1.4–2.2 mm, brownish-grey to dark brown.

Thailand : PENINSULAR: Yala, Narathiwat, Nakhon Si Thammarat.

Distribution : Malay Peninsula, Sumatra, Java (type), Borneo.

Ecology : Common in evergreen forests, up to 600 m alt.

Vernacular : Kra (กระ), pra (ประ)(Peninsular); pi-ra (ปีระ)(Malay-Yala).

Uses: A tree of value, its flowering indicates the start of the rice season. The seeds are mainly used, but usually poisonous (cyanide) when fresh (though a few races are without cyanide). The seeds can be eaten cooked or roasted, but too much may cause dizziness. On Sumatra a paste is made of the seeds (pounded with some water) and used to flavour some kinds of phrik (sambal); jungle tribes (Sakai) in Malaysia bury the paste packed in a bag or in bamboo in wet earth for a month or more, the result is a fermented paste with a strong flavour, which is highly appreciated with meals. The fermented paste is also used as fish bait. The oil is seldom pressed from the seeds, pale yellow, nearly odourless and with a nice taste, to be used for cooking or as lamp oil. The wood is usually considered as excellent. The sapwood is white, the heartwood with beautiful dark brown flames. However, it is mainly used as firewood or for small items like handles of rubber tapping knives, because it takes a nice polish. It is a good construction timber, but only the sapwood is durable, the heartwood rots easily or is attacked by termites unless treated with preservatives. The seeds make nice toys for children, they are used as toy beetles and threaded together in a game called 'conquerors'. The latex is used on Sumatra to shield dirty wounds, because it dries quickly; the Bidayuh in Sarawak apply fresh latex once per day to crack wounds on the soles of their bare feet. The latex is also used to polish blowpipes to a glossy dark sheen (Malay Peninsula).