Large trees to shrubs. Buttresses absent. Spines absent. Stilt roots absent. Bark gray, brown; not peeling in strips. Vertical stripes in the inner bark or wood absent. Odor absent. Exudate absent. Terminal buds not enclosed by leaves.
Complex hairs absent. Stinging hairs absent. Mature twig indumentum absent.
Leaves spiral, or two-ranked; not scale-like; simple, or compound; with three leaflets; with a terminal leaflet; leaflets opposite; all of the same type; not modified into spines; coriaceous, or paper-like; not gland-dotted; very asymmetric at the base, or symmetric at the base; dissected, or not dissected; palmately lobed; smooth margined. Epidermis not waxy. Venation pinnate. Secondary veins open; prominent. Smallest veins not prominent, but visible; net like. Intramarginal vein present, or absent. Stalk of blade absent to less than a quarter the length of the blade; not winged; attached to base of leaf blade; not swollen. Stipules present; free from one another; laterally placed; not encircling the twig; scale-like; not fringed; large, or small; not persistent. Domatia absent. Basal glands absent. Hairs on mature leaf absent.
Inflorescences present; terminal; on an unbranched axis; specialized inflorescence units present; specialized inflorescence units corymbs; numerous and persistent inflorescence bracts absent. Flowers bisexual; stalked; to about 3 cm long or across, or to about 10 cm long or across; round, or somewhat asymmetric; with male or female parts raised on a column; with the female parts of the flower raised on a stalk. Hypanthium absent. Disk absent. Perianth present; with distinct calyx and corolla whorls. Sepals 4; free; not persistent in fruit; not growing any further after flowering. Epicalyx absent. Petals present; 4; free; not fleshy; deciduous; stalked; entire. Stamens 8-30(-100) (many); filaments present; free of each other; free of the perianth; all equal in size; diplostemonous, or polystemonous. Anthers 2 loculed; attached along the side; not awned; dehiscing by long slits. Ovary superior. Carpels joined; 2-6. Locules 1. Styles solitary. Stigmas 1 lobed; not distinctive. Fruit berry-like; fleshy; not multiple; not splitting; not enclosed in, or sitting on, fleshy perianth parts; wingless. Seeds 100 per fruit (many); less than 5 mm, or about 1 cm long, or much more than 1 cm long; wingless; uniform in cross-section; aril absent; non-endospermic.
Leaves palmately lobed or trifoliate; flowers large, reddish; gynophore as long as stamens; fruits large; seeds numerous and often "U" shaped; embedded in pulp. Taxon images: crateva.gif
Cite this publication as: Jarvie, J.K. and
Ermayanti (1996 onwards). `Tree Genera of Borneo - Descriptions and
Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993) should also be cited.