Dipterocarpus crinitus

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Dipterocarpus crinitus

Description

Young twig, leaf bud, stipule outside and petiole persistently c. 3 mm long golden-brown tufted tomentose, shorter on nervation beneath, midrib above and margin; Leaves 6-9 by 3-5 cm, elliptic, chartaceous, obtuse or shortly acuminate, base obtuse, margin revolute, persistently somewhat folded between the 13-15 pairs of nerves; Stipule c. 3 by 0.5 cm, lanceolate, obtuse. Stamens 15, shorter than the style; Ovary ovoid-conical, shortly pubescent; Fruit subsessile.

Distribution

Asahan present, Asia-Tropical: Borneo present; Sumatera (Sumatera present), Bengkalis present, Central Sumatra present, E. Peninsular Thailand present, Indragiri present, Sibolga present, W. Indragiri present, excluding seasonal areas present
E. Peninsular Thailand, and in Malesia: Malaya (excluding seasonal areas), Sumatra (Asahan, Indragiri, Bengkalis districts; Central Sumatra: Sibolga, W. Indragiri), Borneo.

Notes

Individuals, often in considerable numbers, of this species are well known in Malaya to flower and fruit outside general flowering years; the same occurs in Borneo. Though seedlings are usually common in the forest, as a rule very few seeds are viable.

Citation

Ridl. 1901 – In: Agr. Bull. Str. & F.M.S. p 55
Ashton 1964: Man. Dipt. Brun: 29. f. 6
King 1893 – In: J. R. As. Soc. Beng. Sc. p 90
Vesque 1874 – In: J. Bot. p 151
Browne 1955: For. Trees Sarawak & Brunei. p 108
Dyer 1968: Man. Dipt. Brun. p 13
Brandis 1895 – In: J. Linn. Soc. Bot. p 28
Burk. 1920: p. 58. – In: J. Str. Br. R. As. Soc. fig.
Meijer & Wood 1964 – In: Sabah For. Rec. p 246
Sym. 1943: p. 175. – In: Mal. For. Rec. f. 84A, 85, 89
Vesque – In: C. R. Ac. Sc. Paris. p 627
Dyer 1922 – In: Fl. Mal. Pen. p 214
Dyer 1927: Nutt. Pl., ed. 2. p 1095
Dyer 1935: Dict. p 843
Merr. 1921: En. Born. p 398
Dyer 1874 – In: J. Bot. p 154
Sloot. 1927 – In: Bull. Jard. Bot. Btzg. p 288
Dyer – In: J. Bot. 103, 154
Browne 1955: For. Trees Sarawak & Brunei. p 108
Foxw. 1932 – In: Mal. For. Rec. p 66
Heyne 1917 – In: Nutt. Pl., ed. 1. p 273