Dipterocarpus validus

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Dipterocarpus validus

Description

Large pale barked frequently buttressed trees. Twigs, leaf buds, stipules outside, petioles and base of inflorescence densely ± persistently evenly long rufous-tomentose, becoming distinctly tufted as the twigs and stipules expand; Leaves 15-25 by 7.5-12 cm (to 40 by 20 cm in young trees), elliptic-oblong to ovate, coriaceous;

Distribution

Asia-Tropical: Borneo present; Philippines (Philippines present), E. Coast of Sabah south-eastwards to river Barito present, Tenom present
Malesia: Philippines (widespread), Borneo (Tenom in north, and E. Coast of Sabah south-eastwards to river Barito).

Notes

There is some evidence of hybridisation with D. kunstleri in the Philippines.

Citation

Merr. 1921: En. Born. p 400
Brandis 1895 – In: J. Linn. Soc. Bot. p 37
Sloot. 1927 – In: Bull. Jard. Bot. Btzg. p 303
Merr. 1923 – In: En. Philip. p 88
DC. 1868 – In: Prod. p 614
Foxw. 1911 – In: Philip. J. Sc. pl. 35
Merr. 1923 – In: En. Philip. p 91
Meijer & Wood 1964 – In: Sabah For. Rec. p 273
Vidal 1883: Sinopsis. f. d
Foxw. 1911 – In: Philip. J. Sc. pl. 34
Sloot. 1961 – In: Reinwardtia. p 473
Dyer 1874 – In: J. Bot. 108,153
F.-Vill. 1918 – In: Philip. J. Sc. Bot. 176
Brandis 1918 – In: Philip. J. Sc. Bot. 178
Bl. 1867 – In: Ann. Mus. Bot. Lugd.-Bat. 84, 85
Foxw. in Merrill 1913 – In: Leafl. Philip. Bot. p 1952
Heyne 1927: Nutt. Pl., ed. 2. p 1098
Perk. 1923 – In: En. Philip. p 90
Sloot. 1927 – In: Bull. Jard. Bot. Btzg. p 272
Sloot. 1927 – In: Bull. Jard. Bot. Btzg. p 305
Merr. 1923 – In: En. Philip. p 88
Burck 1887 – In: Ann. Jard. Bot. Btzg. p 202
Ashton 1963 – In: Gard. Bull. Sing. p 237
Whitford 1911: p. 70. – In: Bull. Bur. For. Philip. pl. 72-73
Foxw. 1938 – In: Philip. J. Sc. p 256
Miq. 1859 – In: Fl. Ind. Bat. p 498
Merr. 1905 – In: Publ. Gov. Lab. Philip. p 30
Reyes 1923: p. 322. – In: Philip. J. Sc. pl. 13
Walp. 1857 – In: Ann. p 335
Brandis 1918 – In: Philip. J. Sc. Bot. 176