Cotylelobium
Content
Description
Small, medium-sized or large trees;
Bark surface greyish, at first smooth, hoop marked;
Leaves oblong to ovate-lanceolate, coriaceous, margin revolute, undersurface lepidote;
Stipules fugaceous.
Petals free, broad, elliptic-oblong, cream or pink.
Stamens 15, subequal, in 3 whorls, hence pairs alternating with single stamens;
Ovary free from calyx, ± globose;
Fruit as in sect. Sunaptea of Vatica;
Distribution
Anambas Is present, Asia-Tropical: Borneo present; Malaya present, Ceylon present, E. Sumatra present, Lingga present, Peninsular Thailand present
5spp., Ceylon, Peninsular Thailand; in Malesia: 3 spp., in Malaya, E. Sumatra, Lingga, Anambas Is. and Borneo. .
Uses
A hard durable timber similar to that of Vatica is produced, but the trees are generally larger.
Notes
The perianth and range of fruit variation strikingly resemble that of Vatica, and the wood anatomy underlines this affinity; but the androecium, gynoecium and leaf nervation are quite distinct from that genus. The Malesian species differ only in characters of the tomentum, and minor details of leaf shape and nervation; they are variable and at times difficult to identify with certainty; the possibility of occasional hybridisation cannot be ruled out.
Citation
Sloot. 1929 – In: Bull. Jard. Bot. Btzg: 393
Ashton 1972 – In: Blumea: 358
Pierre 1932 – In: Bull. Jard. Bot. Btzg: 43
Pierre 1968: Man. Dipt. Brun.: 24
Heim 1892: Rech. Dipt.: 119
Ashton 1964: Man. Dipt. Brun.: 56
Brandis 1895 – In: J. Linn. Soc. Bot.: 114
Meijer & Wood 1964 – In: Sabah For. Rec.: 323
Smitinand 1980 – In: Thai For. Bull. (Bot.): 23
Sym. 1943: p. 232. – In: Mal. For. Rec.: f. Ill