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Shrubs or small trees, buttresses absent. Branchlets terete to winged; Leaves opposite; Inflorescence terminal; Sepals erect; Stamens inserted around the middle of the tube to near the tube throat, very rarely near base, not exserted from throat; Ovules 2 in each carpel although only ever one develops. Fruit of paired drupes, more rarely solitary, ellipsoid to falcate, flattened to various degrees (hardly at all in K. arborea), usually with spur-like appendages facing inwards towards each other, rarely absent. Seeds curved, broader at one end, other end acuminate.


Asia-Tropical, from Southern China and Burma to northern Australia and Vanuatu present
23 species from Southern China and Burma to northern Australia and Vanuatu; in Malesia 19 species.


Backer & Bakh.f. 1965 – In: Fl. Java: 232
Pit. 1933 – In: Lecomte, Fl. Indo-Chine 3: 1132
A.DC. 1844 – In: Prodr.: 351
G. Don 1837 – In: Gen. Hist.: 100
D.J. Middleton 1999 – In: Fl. Thailand: 60
Benth. & Hook.f. 1876 – In: Gen. Pl.: 701
Blume 2004 – In: Harvard Pap. Bot.: 92
Blume 2004 – In: Tree Fl. Sabah & Sarawak: 35
Pichon 1949 – In: Mém. Mus. Natl. Hist. Nat.: 171