Horsfieldia wallichii
Description
Tree 10-30 m.
Leaves membranous to coriaceous, ovate-oblong to oblong-lanceolate, (14-) 19-40 by (4-)4.5-12 cm, base rounded to short-attenuate, apex subobtuse to acute-acuminate;
Inflorescences usually behind the leaves, with sparse or dense stellate-dendroid hairs 0.5-1 mm long;
Fruits 2-9 per infructescence, ovoid-ellipsoid, 4-7 by 3-4.5 cm, glabrous, smooth or wrinkled, not or only faintly warted;
Distribution
Aceh present, Asia-Tropical: Borneo present (Brunei present, Kalimantan present, Sabah present, Sarawak present); Malaya (Peninsular Malaysia present, Singapore present); Sumatera (Sumatera present), Bangka present, Indragiri present, Mentawai I present, Morsala present, Negri Sembilan absent, Palembang present, Perlis absent, Simeulue present, Tapanuli present, W & E Coast present
Malesia: Sumatra (Aceh, Tapanuli, W & E Coast, Indragiri, Palembang, Simeuluë, Morsala, Mentawai I., Bangka), Peninsular Malaysia (all provinces except Perlis and Negri Sembilan), Singapore, Borneo (Sarawak, Brunei, Sabah, Kalimantan).
Morphology
Horsfieldia wallichii is vegetatively recognizable by the blackish dots and stripes (dashes) on the lower leaf surface, and the hollow twigs. Similar dots are only found in a few other species, including H. borneensis, with similar fruits, but differing in general habit, and in the male flowers.
Citation
Warb. 2000 – In: Tree Fl. Sabah & Sarawak. p 396
Hook, f. 1886 – In: Fl. Brit. India. p 105
J. Sinclair 1958: p. 405. – In: Gard. Bull. Sing. f. 41, pl. XI-A
A. DC 1856 – In: Prodr. p 230
Miq. 1858 – In: Fl. Ind. Bat. p 67
J. Sinclair 1975: p. 405. – In: Gard. Bull. Sing. p 156
King 1891: p. 303. – In: Ann. Roy. Bot. Gard. Cale. pl. 132 & 133