Diplycosia

Family Ericaceae. Order Ericales.

Shrubs. Buttresses absent. Spines absent. Stilt roots absent. Bark gray, brown; not peeling in strips. Exudate absent. Terminal buds not enclosed by leaves.

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

Leaves spiral; not scale-like; simple; all of the same type; not modified into spines; coriaceous, or leathery, or fleshy; gland-dotted, or not gland-dotted; symmetric at the base; not dissected; smooth margined, or wavy margined, or with small to large teeth on margin. Epidermis not waxy. Venation pinnate, or trinerved, or palmate. Secondary veins open; prominent, or not prominent, but visible, or not visible. Smallest veins prominent, or not prominent, but visible, or not visible; net like. Intramarginal vein present, or absent. Stalk of blade less than a quarter the length of the blade; not winged; attached to base of leaf blade; not swollen. Stipules absent. Domatia absent. Basal glands absent. Hairs on mature leaf present, or absent; dense, or sparse.

Inflorescences present, or represented by solitary flowers only; axillary; the flowers from a single point on the stem; 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 present; the stamens outside the disk. Perianth present; with distinct calyx and corolla whorls. Sepals (4-)5; partially joined; persistent in fruit; growing slightly after flowering. Epicalyx absent. Petals present; (4-)5; all joined; not fleshy; deciduous; not stalked; entire. Stamens (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 pores. Ovary superior to partly inferior. Carpels joined; (4-)5. Locules (4-)5. Styles solitary. Stigmas 1 lobed; not distinctive. Fruit capsular; fleshy; not multiple; splitting; enclosed in, or sitting on, the fleshy perianth; wingless. Seeds 100 per fruit (many); barely visible; wingless; uniform in cross-section; aril absent; endospermic.

Epiphytes, shrubs or trees; fibers visible when the leaf is broken; bristles obvious; ovary not inferior; persistent pedicels with a pair of apical cup-shaped bracteoles. Taxon images: gendiply.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.