Vatica mangachapoi (PROSEA)
Introduction |
Vatica mangachapoi Blanco
- Protologue: Fl. Filip. ed. 1: 401 (1837).
Synonyms
- Sunaptea mangachapoi (Blanco) Kosterm. (1987).
Vernacular names
- Malaysia: resak julong (Peninsular), resak bajau (Sabah)
- Philippines: narig (general).
Distribution
Peninsular Thailand, northern Peninsular Malaysia, the Philippines and northern Borneo (Sarawak, Brunei, Sabah).
Uses
The timber is used as resak, particularly for house, ship and bridge building and for other purposes where strength and durability are required.
Observations
- A small to medium-sized tree, up to 30 m tall with cylindrical, often sinuate and low-branched bole up to 60 cm in diameter and small buttresses.
- Leaves elliptical, 6-11 cm × 3-5 cm, with 7-9 pairs of secondary veins, glabrescent, petiole short, 5-11 mm long.
- Inflorescences up to 14 cm long.
- Flower buds up to 12(-20) mm long.
- Nut subglobose, up to 6 mm long, surrounded by 2 longer and 3 shorter fruit calyx lobes free to the base.
Two subspecies are distinguished: subsp. mangachapoi (synonyms: Vatica patula Sym., V. reticulata King non (Thwaites) A.DC.), which is common, especially on dry ridges up to 800 m altitude throughout the range of the species, and occurs also on podzols in kerangas (heath forest), and shallow peats and white sand in Borneo; subsp. obtusifolia (Elmer) P. Ashton (synonym: Vatica obtusifolia Elmer) which differs in its smaller, thickly coriaceous, more obtuse leaves and smaller inflorescences, and which occurs very local in the Philippines (Palawan) and Sabah on rocky places in the lowland. The wood is heavy, with density of 690-1175 kg/m3 at 15% moisture content. See also the table on wood properties.
Selected sources
30, 89, 100, 175, 265, 425, 472, 484, 497, 578, 579, 628, 677, 748.
Main genus page
Authors
- R.H.M.J. Lemmens (selection of species)