Kopsia Blume

Shrubs or small trees, buttresses absent. Branchlets terete to winged; glabrous or more rarely pubescent; lenticellate or not. Leaves opposite; mostly petiolate, rarely sessile, bases mostly clasping the terminal bud when young and the stem when older; blade mostly subcoriaceous to coriaceous, rarely papery, more or less equal in size, entire; colleters present in the axils. Inflorescence terminal; basically dichasial, more rarely trichasial, but often with elongated branches that do not further branch so as to appear somewhat cincinnate; pedunculate or not; glabrous to densely pubescent; bracts and bracteoles small; flowers 5-merous. Sepals erect; without colleters inside; with a gland on the outside just below the apex. Corolla actinomorphic; lobes dextrorse; salverform with a narrow tube, slightly wider around the stamens, and spreading lobes. Stamens inserted around the middle of the tube to near the tube throat, very rarely near base, not exserted from throat; filaments straight, short, thin; anthers ovate, fertile for most of the length; free from style head. Disk of 2 lobes alternating with the 2 free carpels. Gynoecium 2-carpellate, apocarpous but united into a common style, glabrous or pubescent; style filiform, glabrous; style head with a collar at the base, otherwise short and cylindrical. 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.