Dipterocarpus rigidus
Content
Description
Twig, petiole, midrib above and leaf beneath shortly densely evenly pale ocherous pubescent, leaf above fugaceously so;
Leaves 13-25 by 8-16 cm, ovate, thickly coriaceous, with broadly cuneate base;
Stipule to 7 by 1 cm, lorate, subacute.
Stamens 24, slightly shorter than the style;
Ovary ovoid, pubescent;
Fruit glabrous.
Distribution
Anambas Is present, Asia-Tropical: Borneo present (Sarawak present); Sumatera (Sumatera present), Bintulu present, E. Malaya present, Lingga present, Riouw Arch present, Singkep present, Trengganu present
Malesia: E. Malaya (Trengganu southwards), Sumatra (Riouw Arch., Singkep, Lingga), Anambas Is., Borneo (Sarawak N.E. to Bintulu).
Notes
Sometimes difficult to distinguish from D. costulatus and D. globosus, both of which can be more or less tomentose when immature.
Citation
Desch 1941 – In: Mal. For. Rec. p 64
Ashton 1968: Man. Dipt. Brun: 16. f. 3, pl. 2
Browne 1955: For. Trees Sarawak & Brunei. p 110
Foxw. 1932: p. 76. – In: Mal. For. Rec. pl. 5
Sym. 1943: p. 187. – In: Mal. For. Rec. f. 85
Burk. 1935: Dict. p 845
Sloot. 1927 – In: Bull. Jard. Bot. Btzg. p 347
Ridl. 1961 – In: Reinwardtia. p 463
Ridl. 1922 – In: Fl. Mal. Pen. p 217