Antiaris

Family Moraceae. Order Urticales.

Large trees to small trees. Buttresses present, or absent; tall, or 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; white; flowing; not blackening on exposure to air. Terminal buds not enclosed by leaves.

Complex hairs absent. Stinging hairs absent. Mature twig indumentum present; dense, or sparse.

Leaves two-ranked; not scale-like; simple; 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, or with small to large teeth on margin. Epidermis not waxy. Venation pinnate. Secondary veins open; prominent. Smallest veins prominent; net like, or box like. Intramarginal vein absent. Stalk of blade 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 to small; not persistent. Domatia absent. Basal glands absent. Hairs on mature leaf present; sparse.

Inflorescences present; axillary; the flowers from a single point on the stem; specialized inflorescence units present, or absent; specialized inflorescence units heads (male); numerous and persistent inflorescence bracts present at the bottom of the inflorescence. Flowers at least some flowers unisexual; with male and female flowers on the same plant, or with male and female flowers on different plants; not stalked, or stalked; with the parts barely visible to the eye; round; with male or female parts not raised on a column. Hypanthium absent. Disk absent. Perianth present; with all whorls looking like tepals. Tepals 2-7. Stamens (2-)4; filaments present; free of each other; free of the perianth; all equal in size; anisomerous. Anthers 2 loculed; attached along the side; not awned; dehiscing by long slits. Ovary partly inferior. Carpels solitary; 1. Locules 1. Styles solitary. Stigmas 2 lobed; not distinctive. Fruit drupaceous; fleshy; multiple; not splitting; not enclosed in, or sitting on, fleshy perianth parts; wingless. Seeds 100 per fruit (many); less than 5 mm to about 1 cm long; wingless; uniform in cross-section; aril absent; non-endospermic.

Tepals free; stigmas 2. Taxon images: antiaris.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.