Large trees to small trees. Buttresses present, or absent; tall, or short. Spines absent. Stilt roots absent. Bark red, brown; not peeling in strips. Slash red. 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 present, or absent; dense, or sparse.
Leaves two-ranked; not scale-like; simple; all of the same type; not modified into spines; coriaceous; not gland-dotted; symmetric at the base; not dissected; smooth margined. Epidermis not waxy. Venation pinnate. Secondary veins open; prominent, or not prominent, but visible. Smallest veins prominent, or not prominent, but visible, or not visible; net like, or ladder like. Intramarginal vein absent. Stalk of blade less than a quarter the length of the blade, or a quarter to one half the length of the blade; not winged; attached to base of leaf blade; not swollen, or swollen; swollen at one end. Stipules absent. Domatia absent. Basal glands absent. Hairs on mature leaf present, or absent; dense, or sparse.
Inflorescences present; terminal, or axillary; on an unbranched axis, or on a branched axis; specialized inflorescence units absent; numerous and persistent inflorescence bracts absent. Flowers bisexual; stalked; about 0.5 cm long or across; round; with male or female parts not raised on a column. Hypanthium absent. Disk absent. Perianth present; with distinct calyx and corolla whorls. Sepals 5; partially joined; persistent in fruit; not growing any further after flowering. Epicalyx absent. Petals present; 5; free; not fleshy; deciduous; stalked; entire. Stamens 10; filaments present; joined (basally); free of the perianth; all equal in size, or of different sizes; diplostemonous. Anthers 2 loculed; attached along the side; not awned; dehiscing by long slits. Ovary superior. Carpels joined; 5. Locules 5. Styles free; 5. Stigmas 1 lobed; not distinctive. Fruit berry-like; fleshy; not multiple; not splitting; not enclosed in, or sitting on, fleshy perianth parts; wingless. Seeds 1-10 per fruit; less than 5 mm; wingless; uniform in cross-section; aril absent; endospermic.
Tree trunks highly fluted; styles 5; seeds flat, without aril. Taxon images: sarco.gif
Cite this publication as: Jarvie, J.K. and
Ermayanti (1996 onwards). `Tree Genera of Borneo – Descriptions and
Illustrations’ URL
http://django.harvard.edu/users/jjarvie/Borneo.htm/.
Dallwitz (1980) and Dallwitz,
Paine and Zurcher (1993) should also be cited.
