|Abstract||Mastichodendron Cronquist, Lloydia 9, 1946, 245 — Mastichodendron (Engler) H. J. Lam, Med. Bot. Mus. Herb. Rijksuniv. Utrecht 65, 1939, 521; idem, Rec. Trav. bot, Néerl. 36, 1940, 521 — Mastichodendron Jacquin in Hedwig, Genera, 1906, 116, as a synonym in Bumelia — Sideroxylon L., section Mastichodendron Engler, Nat. Pfl. Fam., ed. 1, IV, 1, 1897, 144.|
Trees, rarely shrubs. Leaves scattered, tertiary nerves transverse but the nerves subparallel to the secondary nerves. Stipules none. Flowers in few-flowered, axillary clusters. Sepals 5, imbricate. Corolla 5-lobed, lobes imbricate in bud. Staminodes 5, alternipetalous, inserted in the throat of the tube. Stamens 5, oppositi- and epipetalous, anthers dehiscing laterally. Ovary 5-celled, with one ovule in each cell. Fruit one-seeded, pericarp thin, seed with thin testa, scar circular, basal or basilateral, cotyledons thin, endosperm copious.