Olacaceae

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Trees, shrubs or scramblers, mostly hemiparasitic on the roots of other plants. Leaves alternate, simple, entire; stipules absent. Inflorescences axillary umbels, racemes or clusters, or rarely flowers solitary. Flowers regular, usually bisexual, or unisexual on dioecious plants; calyx small, more or less cupular, free or adnate to disk or ovary, persistent and often enlarging in fruit; sepals 3–6, inconspicuous; petals 3–6, free or partly united lower down, much larger than calyx, hypogynous or nearly so; stamens usually as many as petals, rarely 2–5 times as many, free, opposite petals and sometimes fused to their bases, often some reduced to staminodes, anthers 2-celled, opening by longitudinal slits; ovary superior, usually free, sometimes slightly immersed in the disc, 1- or imperfectly 2–4-celled, ovules 1 per cell or part cell, pendulous, style simple, stigma 2–5-lobed. Fruit a drupe or nut, usually fleshy, often red; seed single, erect, embedded in upper part of albumen.

As generally treated in Australia, about 25 genera with c. 250 species, chiefly in tropical and subtropical regions; 3 genera in Australia, but Ximenia and Anacolosa sometimes included in Ximeniaceae and Aptandraceae respectively.

Source: Jeanes, J.A. (1999). Olacaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Neville Walsh, 2014-08-06
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life Life
kingdom Plantae
phylum Tracheophyta
superorder Santalanae
order Santalales
Higher taxa
family Olacaceae
Subordinate taxa
genus Olax