PROSEA Handbook Number
5(2):Timber trees; Minor commercial timbers
Taxon
Wrightia pubescens R.Br.
This article should be read together with the article on the genus: Wrightia in the Handbook volume indicated above in this database.
Protologue
Mem. Wern. Soc. 1: 73 (1811).
Vernacular Names
Indonesia: mentaos (Javanese), bintaos, benteli lalaki (Sundanese). Malaysia: jeliti, mentoh, metih-metah (Peninsular). Philippines: lanete (general), anantong (Zambales), manlagosi (Mindoro). Laos: mouk. Thailand: mok (central), mukkuea (Chanthaburi), mok-man (Chon Buri, Nakhon Ratchasima). Vietnam: th[uwf]ng m[uws]c l[oo]ng.
Distribution
Southern China, Cambodia, Vietnam, Thailand, throughout the Malesian area but probably not in Borneo, towards the Solomon Islands and northern Australia.
Uses
Wrightia pubescens is the main source of lanete; the wood is used for e.g. general construction, pencils, musical instruments, wayang figures and carving. The latex has been used against severe dysentery. In the Philippines, the trees are sometimes used for reforestation. The bark is commonly used in Indonesia as a coagulant for the manufacture of 'litsusu', a traditional cheese-like product.
Observations
A medium-sized to fairly large tree up to 35 m tall, bole columnar, up to 50 cm in diameter, bark surface deeply fissured, branchlets glabrous to densely puberulent when young; leaves narrowly ovate or ovate to oblong-ovate or elliptical, 5-15 cm x 2-7 cm, glabrous to densely puberulent above, with 8-15 pairs of secondary veins, petiole 0.4-0.8 cm long; flowers white to yellow or pink or even dark red, corolla subrotate, the tube 5-7 mm long, the lobes 10-20 mm long, stamens inserted at the mouth of the tube; follicles coherent, fusiform, 15-30 cm long, finely striate and obscurely to conspicuously lenticellate. Wrightia pubescens is highly variable and has been subdivided into 5 subspecies, 3 of which are found in the Malesian area. Subsp. pubescens (synonyms: Wrightia calycina A.DC., Wrightia spanogheana Miq.), with calyx about as long as corolla tube, occurs from Java and Sulawesi eastward to northern Australia. Subsp. candollei (S. Vidal) Ngan (synonym: Wrightia candollei S. Vidal), with calyx about 2/3 as long as corolla tube, is endemic to the Philippines. Subsp. laniti (Blanco) Ngan (synonyms: Wrightia javanica A.DC., Wrightia laniti (Blanco) Merr., Wrightia tomentosa (Roxb.) Roem. & Schultes var. cochinchinensis Pierre ex Pitard), with calyx about 1/4 as long as corolla tube, occurs from mainland South-East Asia to Sumatra, Java and the Philippines. Wrightia pubescens is quite common in evergreen and deciduous forest, thickets, and savanna, on periodically or permanently dry locations, up to 1000 m altitude. The density of the wood is 470-615 kg/m³ at 12% moisture content.
Image
 | Wrightia pubescens R.Br. – 1, flowering twig; 2, sectioned flower; 3, fruit; 4, seed. |
Selected Sources
Burkill, I.H., 1966. A dictionary of the economic products of the Malay Peninsula. 2nd edition. Ministry of Agriculture and Co-operative, Kuala Lumpur. Vol. 1 (A-H) pp. 1-1240. Vol. 2 (I-Z) pp. 1241-2444.
de Guzman, E.D., 1975. Conservation of vanishing timber species in the Philippines. In: Williams, J.T., Lamoureux, C.H. & Wulijarni-Soetjipto, N. (Editors): South East Asian plant genetic resources. Proceedings of a Symposium on South East Asian Plant Genetic Resources held at Kopo, Cisarua, 20-22 March 1975. International Board for Plant Genetic Resources, SEAMEO Regional Center for Tropical Biology/BIOTROP, Badan Penelitian dan Pengembangan Pertanian and Lembaga Biologi Nasional - LIPI, Bogor. pp. 198-204.
de Guzman, E.D., Umali, R.M. & Sotalbo, E.D., 1986. Guide to the Philippine flora and fauna. Vol. 3: Dipterocarps, non-dipterocarps. Natural Resources Management Centre, Ministry of Natural Resources, Quezon City & University of the Philippines, Los Baños. xx + 414 pp.
Heyne, K., 1927. De nuttige planten van Nederlands-Indië [The useful plants of the Dutch East Indies]. 2nd edition, 3 volumes. Departement van Landbouw, Nijverheid en Handel in Nederlandsch-Indië, 's-Gravenhage. 1953 pp.
Ingle, H.D. & Dadswell, H.E., 1953. The anatomy of the timbers of the south-west Pacific area. II. Apocynaceae and Annonaceae. Australian Journal of Botany 1: 10-11.
Koorders, S.H. & Valeton, T., 1894-1915. Bijdrage tot de kennis der boomsoorten van Java [Contribution to the knowledge of the tree species of Java]. 13 parts. G. Kolff & Co., Batavia, 's-Gravenhage.
Meniado, J.A. et al., 1975-1981. Wood identification handbook for Philippine timbers. 2 volumes. Government Printing Office, Manila. 370 pp. & 186 pp.
Ngan, P.T., 1965. A revision of the genus Wrightia (Apocynaceae). Annals of the Missouri Botanical Garden 52: 114-175.
Pham Hoang Ho, 1993. An illustrated flora of Vietnam. Vol. II(2). Mekong Publisher, Montreal.
Reyes, L.J., 1938. Philippine woods. Technical Bulletin No 7. Commonwealth of the Philppines, Department of Agriculture and Commerce. Bureau of Printing, Manila. 536 pp. + 88 plates.
Smitinand, T., 1980. Thai plant names. Royal Forest Department, Bangkok. 379 pp.
Tantra, I.G.M., 1987. Kayu kurang dikenal yang mungkin dipasarkan di Bali untuk kerajinan [The possibilities for marketing lesser-known tree species in Bali for handicrafts]. In: Prosiding diskusi pemanfaatan kayu kurang dikenal, 13-14 Januari 1987, Cisarua, Bogor. Badan Penelitian dan Pengembangan Kehutanan, Bogor. pp. 335-336.
Tran Dinh Ly, 1986. Die Familie Apocynaceae Juss. in Vietnam. Teil 3: Spezieller Teil (2) [The family of the Apocynaceae Juss. in Vietnam. Part 3: special part (2)]. Feddes Repertorium 97: 607-689.
Weidelt, H.J. (Editor), 1976. Manual of reforestation and erosion control for the Philippines. Schriftenreihe No 22. Deutsche Gessellschaft für Technische Zusammenarbeit )GTZ) GmbH, Eschborn. 569 pp.
Whitford, H.N., 1911. The forests of the Philippines. Part II: the principal forest trees. Bulletin No 10. Department of the Interior, Bureau of Forestry. Bureau of Printing, Manila. 113 pp.
Whitmore, T.C. & Ng, F.S.P. (Editors), 1972-1989. Tree flora of Malaya. A manual for foresters. 2nd edition. 4 volumes. Malayan Forest Records No 26. Longman Malaysia SDN. Berhad, Kuala Lumpur & Petaling Jaya.
Author(s)
Nguyen Ba & Nguyen Nghia Thin
Correct Citation of this Article
Ba, N. & Thin, N.N., 1995. Wrightia pubescens R.Br.. In: Lemmens, R.H.M.J., Soerianegara, I. and Wong, W.C. (Editors): Plant Resources of South-East Asia No 5(2):Timber trees; Minor commercial timbers. PROSEA Foundation, Bogor, Indonesia. Database record:
prota4u.org/prosea