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Shrubs or trees with dichotomous branching; Leaves opposite; Inflorescence a cyme or solitary flower, lax; Sepals in most species with a distinct connate tube and free lobes; Stamens subsessile; Fruit of paired follicles, usually somewhat united at least at base. Seeds covered in a fleshy aril.


Africa present, Asia-Tropical, Australasia: Queensland (Queensland present)
The genus has 12 species of which 7 are in Africa and 5 in Malesia. One of the Malesian species also occurs in Australia (Queensland).


This account is partly adapted from Leeuwenberg (1985) rather than completely reworked because I agree with the species delimitation he used. It has been updated to include new collections made since 1985.


Miq. - in Ann. Mus. Bot. Lugduno-Batavi. 1864: 316
Thouars - in PROSEA. 2001: 582
Miq. - in Fl. Ned. Ind. 1857: 417
D.J. Middleton - in Tree Fl. Sabah & Sarawak. 2004: 59
Leeuwenb. - in Agric. Univ. Wageningen Pap. 1985: 9
Backer & Bakh.f. - in Fl. Java. 1965: 229
Pichon - in Bull. Mus. Hist. Nat. (Paris). 1947: 409