Saraca

Family Fabaceae. Order Fabales.

Large trees to shrubs. Buttresses absent. Spines absent. Stilt roots absent. Bark gray, brown; not peeling in strips. Slash red, brown. 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; compound; pinnate; without a terminal leaflet; leaflets opposite; all of the same type; not modified into spines; coriaceous to leathery; 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 to not prominent, but visible; net like. Intramarginal vein absent. Stalk of blade less than a quarter the length of the blade; not winged; attached to base of leaf blade; swollen; swollen at one end. Stipules present; free from one another; laterally placed; not encircling the twig; scale-like; not fringed; small; not persistent. Domatia absent. Basal glands absent. Hairs on mature leaf present, or absent; sparse.

Inflorescences present; terminal, or axillary, or on the trunk or branches; on a branched axis; specialized inflorescence units present; specialized inflorescence units corymbs; numerous and persistent inflorescence bracts absent. Flowers bisexual, or at least some flowers unisexual; with male and female flowers on the same plant; stalked; about 0.5 cm long or across to to about 10 cm long or across; with one plane of symmetry; with male or female parts raised on a column; with the female parts of the flower raised on a stalk. Hypanthium absent. Disk present. Perianth present; with all whorls looking like sepals. Sepals 4(-6); partially joined; not persistent in fruit; not growing any further after flowering. Epicalyx absent. Petals absent. Stamens (3-)4-8(-10); filaments present; free of each other; free of the perianth; all equal in size; diplostemonous. Anthers 2 loculed; attached along the side; not awned; dehiscing by long slits. Ovary superior. Carpels solitary; 1. Locules 1. Styles solitary. Stigmas 1 lobed; not distinctive. Fruit legume-like; non-fleshy; not multiple; splitting; not enclosed in, or sitting on, fleshy perianth parts; winged. Seeds 1-8 per fruit; less than 5 mm to about 1 cm long; wingless; uniform in cross-section; aril absent; non-endospermic.

Usually growing by streams; young leaves in flaccid red-purple flushes; sepal lobes normally 4. Taxon images: saraca.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.