Olacaceae R.Br.
  • Narr. Exped. Zaire 452. 1818. (5 Mar 1818)


Cite taxon page as 'WFO (2020): Olacaceae R.Br. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-7000000421. Accessed on: 25 Jan 2020'

General Information

Shrubs, scandent shrubs, trees, or lianas, sometimes hemiparasitic, often glabrous. Lateral shoots sometimes with bud scales at base. Stipules absent. Leaves alternate, rarely opposite; petiole well developed; leaf blade simple, margin entire; veins usually pinnate, sometimes palmate and 3-5-veined. Inflorescences axillary, rarely also terminal, cymose, fasciculate, racemelike, spikelike, or umbellate, mostly small; bracts small and inconspicuous. Flowers usually bisexual, actinomorphic, 3-7-merous, sometimes heterostylous. Calyx small at anthesis, cupular, discoid, or lobed, sometimes accrescent to partly or wholly covering fruit, sometimes fused to fruit (in Schoepfia). Petals free or basally connate, valvate. Disk cuplike or annular, rarely free glands, sometimes accrescent and covering fruit apex (in Schoepfia). Stamens 3-15, rarely in part staminodes, epipetalous; anthers basi- or medi-fixed, usually 2-loculed, longitudinally dehiscent. Ovary usually superior, rarely semisuperior but sometimes apparently inferior through fusion with calyx, 2-5-loculed or semiloculed with apex of ovary 1-loculed; ovules solitary in each locule or semilocule, pendent from apex of free central placenta, usually anatropous, integuments 1 or 2. Style terminal, simple; stigma 2-5-lobed. Fruit a drupe, sometimes with an accrescent calyx. Seed solitary; testa thin; endosperm abundant; embryo small; cotyledons 2-4.

  • Provided by: [C].Flora Of CHina @ efloras.org
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    Morphology

    Disk often present, usually annular

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    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

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    Calyx-lobes imbricate or open in bud

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    Petals free or variously connate, valvate

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    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

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    • 2
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    Leaves alternate, simple; stipules absent

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    Flowers actinomorphic, usually hermaphrodite and small

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    Trees, shrubs or climbers

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    Seeds with copious endosperm and small or medium-sized straight embryo

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    • 2
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    Fruit drupaceous, sometimes inferior by accrescence of the calyx or receptacle

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    • 2
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    Calyx cupuliform, often accrescent, with the base free or more or less adnate to the ovary, and the margin entire or lobed

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Petals 3–5 (6), valvate in bud, sometimes connate in pairs

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    • 3
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    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

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Disk present or inconspicuous

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Trees or shrubs, sometimes armed with spines

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Leaves alternate, simple, entire, penninerved, exstipulate

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    • 3
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    Flowers actinomorphic, bisexual, in axillary fascicles, cymes or racemes

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    • 3
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    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

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    • 3
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    Seed with abundant fleshy endosperm; embryo minute, apical

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Fruit drupaceous, ellipsoid to globose

  • Provided by: [A].Plants Of the World Online Portal - FZ
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     Information From

    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • A
    Plants Of the World Online Portal - FWTA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • B The Trustees of the Royal Botanic Gardens, Kew
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Missouri Botanical Garden
    Olacaceae
    World Flora Online Data. 2017.
    • D CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).