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  • Olacaceae Juss. ex R.Br.

This family is accepted.
Erythropalum scandens (Erythropalaceae)

[FTEA]

Olacaceae, G. Ll. Lucas. Flora of Tropical East Africa. 1968

Morphology General Habit
Trees, shrubs or woody climbers
Morphology Leaves
Leaves usually alternate, simple, exstipulate
Morphology Reproductive morphology Flowers
Flowers usually bisexual, sometimes dioecious (Octoknema), regular, borne in axillary fascicles of cymes or racemes, sometimes solitary
Morphology Reproductive morphology Flowers Calyx
Sepals 3–5(–6), small, usually partially united and often cupuliform, the margin entire or lobed, accrescent in some genera >i>(Heisteria, Strombosia and >i>Olax in East Africa)
Morphology Reproductive morphology Flowers Corolla
Petals 3–5(–6), free, valvate or sometimes partially united
Morphology Reproductive morphology Flowers Androecium
Stamens 4–12, opposite the petals if equal in number to them, free or basally adnate to them, sometimes sterile (staminodes); anthers dithecous, with longitudinal dehiscence by means of a slit or more rarely an apical pore (not in East Africa)
Morphology Reproductive morphology Flowers Nectaries
Disk present
Morphology Reproductive morphology Flowers Gynoecium
Ovary superior, semi-inferior (caused by the expansion of the disk so enveloping the basal portion of the ovary) or inferior (as in >i>Octoknema), 1–3–5-locular; ovules 1–5, one per locule, pendulous from the apex of a central placenta; style usually short; stigma 2–5-lobed
Morphology Reproductive morphology Fruits
Fruit a berry or drupe, sometimes surrounded by a persistent enlarged calyx
Morphology Reproductive morphology Seeds
Seeds with copious endosperm

[FZ]

Olacaceae, J. G. Garcia. Flora Zambesiaca 2:1. 1963

Morphology General Habit
Trees or shrubs, sometimes armed with spines
Morphology Leaves
Leaves alternate, simple, entire, penninerved, exstipulate
Morphology Reproductive morphology Flowers
Flowers actinomorphic, bisexual, in axillary fascicles, cymes or racemes
Morphology Reproductive morphology Flowers Calyx
Calyx cupuliform, often accrescent, with the base free or more or less adnate to the ovary, and the margin entire or lobed
Morphology Reproductive morphology Flowers Corolla
Petals 3–5 (6), valvate in bud, sometimes connate in pairs
Morphology Reproductive morphology Flowers Androecium
Stamens as many as or more numerous than the petals, free or with the filaments more or less adnate to the petals, all fertile or some sterile
Morphology Reproductive morphology Flowers Nectaries
Disk present or inconspicuous
Morphology Reproductive morphology Flowers Gynoecium
Ovary free or more or less immersed, usually 3–5-locular at the base or nearly to the apex; style short, columnar; stigma capitate, sometimes lobulate; ovules (2) 3–5, pendulous from the apex of a central placenta
Morphology Reproductive morphology Fruits
Fruit drupaceous, ellipsoid to globose
Morphology Reproductive morphology Seeds
Seed with abundant fleshy endosperm; embryo minute, apical

[FWTA]

Olacaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:2. 1958

Morphology General Habit
Trees, shrubs or climbers
Morphology Leaves
Leaves alternate, simple; stipules absent
Morphology Reproductive morphology Flowers
Flowers actinomorphic, usually hermaphrodite and small
Morphology Reproductive morphology Flowers Calyx
Calyx-lobes imbricate or open in bud
Morphology Reproductive morphology Flowers Corolla
Petals free or variously connate, valvate
Morphology Reproductive morphology Flowers Nectaries
Disk often present, usually annular
Morphology Reproductive morphology Flowers Androecium
Stamens free or rarely united into a column, the same number as and opposite the petals or fewer or more numerous, some often without anthers; anthers 2-celled, opening by slits or pore-like slits
Morphology Reproductive morphology Flowers Gynoecium
Ovary superior or slightly immersed in the disk, 1–3-celled; style 1, with a 2–5-lobed stigma; ovules 1–5 from the apex of a central placenta in a 1-celled ovary, or pendulous from the inner angle of a 2- or more-celled ovary
Morphology Reproductive morphology Fruits
Fruit drupaceous, sometimes inferior by accrescence of the calyx or receptacle
Morphology Reproductive morphology Seeds
Seeds with copious endosperm and small or medium-sized straight embryo

[FWTA]

Octoknemataceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:2. 1958

Morphology General Habit
Trees and shrubs; leaves alternate, simple, entire, exstipulate
Morphology Reproductive morphology Flowers
Flowers unisexual in axillary racemes, or hermaphrodite in panicles borne on the older branches
Morphology Reproductive morphology Flowers Calyx
Sepals 5, valvate
Morphology Reproductive morphology Flowers Corolla
Petals absent
Morphology Reproductive morphology Flowers Androecium
Stamens (or in female flower staminodes) 5, opposite the sepals, free
Morphology Reproductive morphology Flowers Nectaries
Disk present
Morphology Reproductive morphology Flowers Gynoecium
Ovary inferior, 1-celled or 3 (–4)-celled almost to the top; ovules 3 (–4), at the apex of a basal threadlike placenta which reaches and is adnate to the top of the ovary; style very short, stigmas 3–5-lobed, lobes bifid
Morphology Reproductive morphology Fruits
Fruit drupaceous, with a single seed; endosperm slightly ruminate, with small embryo, the radical much longer than the cotyledons

Olacaceae Juss. ex R.Br. appears in other Kew resources:

First published in Narr. Exped. Zaire 452. 1818 [3 Mar 1818] ("Olacineae") (1818)

Accepted by

  • APG IV (2016) http://dx.doi.org/10.1111/boj.12385

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of West Tropical Africa
Flora of West Tropical Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0