Scutinanthe

Family Burseraceae. Order Sapindales.

Emergent trees to small trees. Buttresses present, or absent; short. Spines absent. Stilt roots absent. Bark red, gray, brown; not peeling in strips. Slash red. Vertical stripes in the inner bark or wood absent. Odor absent. Exudate present, or absent; white; spotty; not blackening on exposure to air. Terminal buds not enclosed by leaves.

Complex hairs absent. Stinging hairs absent. Mature twig indumentum absent.

Leaves spiral; not scale-like; compound; pinnate; with a terminal leaflet; leaflets opposite; all of the same type; not modified into spines; coriaceous; not gland-dotted; very asymmetric at the base, or symmetric at the base; not dissected; smooth margined. Epidermis not waxy. Venation pinnate. Secondary veins open; prominent. Smallest veins prominent; net like. Intramarginal vein absent. Stalk of blade less than a quarter the length of the blade to a quarter to one half the length of the blade; not winged; attached to base of leaf blade; not swollen, or swollen; swollen at both ends. Stipules absent. Domatia absent. Basal glands absent. Hairs on mature leaf absent.

Inflorescences present; axillary; on a branched axis; specialized inflorescence units absent; numerous and persistent inflorescence bracts absent. Flowers at least some flowers unisexual; with male and female flowers on different plants; stalked; with the parts barely visible to the eye, or about 0.5 cm long or across; round; with male or female parts not raised on a column. Hypanthium present. Disk present; the stamens outside the disk. Perianth present; with distinct calyx and corolla whorls. Sepals 5; free; persistent in fruit; not growing any further after flowering. Epicalyx absent. Petals present; 5; free; not fleshy; deciduous; not stalked; entire. Stamens 10; filaments present; joined (basally); free of the perianth; all equal in size; diplostemonous. Anthers 2 loculed; attached along the side; not awned; dehiscing by long slits. Ovary partly inferior. Carpels joined; 3. Locules 3. Styles solitary. Stigmas 3 lobed; not distinctive. Fruit drupaceous; fleshy; not multiple; not splitting; not enclosed in, or sitting on, fleshy perianth parts; wingless. Seeds 1 per fruit; less than 5 mm, or about 1 cm long; wingless; uniform in cross-section; aril absent; non-endospermic.

Bark smooth and hoop marked; leaves with red midrib and stalk; fruits one seeded, densely hairy; sepals free and persistent. Taxon images: scutinan.gif genscuti.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.