Icacinaceae Miers
  • Ann. Mag. Nat. Hist., ser. 2 8: 174. 1851. (Sep 1851)


Cite taxon page as 'WFO (2021): Icacinaceae Miers. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-7000000298. Accessed on: 05 Dec 2021'

General Information

Trees, shrubs, or lianas, occasionally with tendrils. Leaves alternate, rarely opposite, estipulate, veins mostly pinnate, sometimes palmate, margin usually entire, rarely lobed or denticulate. Inflorescences spikes, racemes, panicles, or cymes, axillary or terminal, rarely opposite leaves, with small bracts or not. Flowers regular, bisexual, sometimes polygamous or unisexual, (3 or)4- or 5(or 6)-merous. Calyx generally articulate to pedicel, usually persistent, small; lobes imbricate, rarely valvate. Petals present, rarely absent, free or connate at base, imbricate, rarely valvate, apices mostly inflexed or incurved. Stamens as many as petals; filaments free or on corolla tube, alternate with corolla lobes, often pilose at apex; anthers 2-celled, introrse. Disk rarely developed, cupular or divided. Ovary superior, 2-carpellate, coherent, 1-loculed, rarely 3-5-loculed; ovules 2, rarely 1 per locule, pendulous from apex, anatropous with abaxial raphe and micropyle facing upward; funicle usually thickened above micropyle; style rarely developed, simple; stigmas 2(or 3-5), or coherent to capitate or peltate. Fruit 1-loculed, 1-seeded, rarely 2-seeded, usually a drupe, rarely samaroid. Seeds pendulous, with a thin testa; endosperm usually present, embryo small, straight or curved; cotyledons usually ovate.

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

    Calyx small, 3–5-lobed; lobes imbricate or valvate, rarely enlarging and enveloping the fruit

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    Flowers hermaphrodite or rarely unisexual, actinomorphic

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    Stamens the same number as the petals and alternate with them; anthers 2-celled; filaments often hairy, free

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    Petals 3–5, free or united, valvate, rarely absent

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    Leaves alternate or rarely opposite, simple; stipules absent

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    Trees, shrubs or rarely climbers

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    Ovary superior, 1-celled, 1-seeded

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    Disk rarely present

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    Seeds mostly with endosperm; embryo usually small, more or less straight

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    Style simple or stigma sessile

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    Seed usually with copious endosperm; embryo usually small, ± straight

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    Fruit drupaceous, 1-seeded

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    Leaves simple, alternate or opposite, penninerved or rarely palmatinerved; stipules absent (in our area)

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    Trees or shrubs, sometimes climbing, or lianes

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    Calyx small or absent

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    Petals usually valvate, free or ± united, or united into a long tube

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    Inflorescences axillary, supraxillary or terminal

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    Flowers bisexual or unisexual by abortion, (4) 5-merous, actinomorphic

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    Stamens free or adnate to the petals; anthers 2-thecous, opening lengthwise

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Ovary superior, 1-locular (in our area); ovules pendulous from near the apex, usually 2

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    Trees, shrubs or climbers

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    Leaves mostly alternate, sometimes opposite, coriaceous, glabrous to densely pilose, exstipulate

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    Stamens equal in number to and alternate with petals; anthers dithecous (rarely 4-lobed), with longitudinal dehiscence; filaments often tomentose, free or adnate to petals (e.g. in Leptaulus)

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    Disk rarely present

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    Ovary unilocular, rarely 3–5-locular (locules lost by suppression or compression), superior; ovules usually 2, pendulous, anatropous; style simple and straight or absent; stigmas (rarely 2–)3–5-lobed, often small

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    Fruit a drupe, unilocular, 1-seeded; endocarp woody

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    Inflorescence terminal, axillary or supraxillary; flowers bisexual (hermaphrodite), sometimes unisexual by abortion, regular, usually paniculate

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    Petals 4–5, free or united, valvate

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    Calyx small, 4–5-lobed, usually imbricate, rarely valvate, sometimes absent

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    Arbres , arbustes ± grimpants, volubiles ou lianes, parfois munis de vrilles, parfois épineux, monoïques ou dioïques.'Feuilles'en général alternes, rarement opposées, simples, entières, dentées, parfois lobées, penninerves, plus rarement palminerves, à nervures quelquefois terminées par des hydatodes1 ± saillants; stipules nulles.'Inflorescences'axillaires, supra-axillaires, terminales ou naissant sur rameaux défeuillés ou caulinaires, en glomérules, fascicules, épis, racèmes, panicules, rarement fleurs solitaires; bractées souvent présentes.'Fleurs'en général petites, ☿ ou ♂♀, actinomorphes, à pédicelle souvent articulé sous la fleur et parfois muni de bractéoles; calice petit, à 3-6 sépales libres ou ± soudés, imbriqués, rarement valvaires, parfois nul; pétales 3-6, valvaires, libres ou ± soudés à la base, ou unis en tube, parfois fortement accrescents; étamines 3-6, alternipétales; filets libres ou ± longuement soudés avec la corolle; disque parfois présent; gynécée à ovaire 1-loculaire, à 2 ovules pendants; style parfois excentrique ou nul; stigmate entier, capité, discoïde, lobé ou divisé et ± rayonnant.'Drupes'charnues ou ± sèches, parfois asymétriques, 1-loculaires, parfois enveloppées par la corolle accrescente; endocarpe crustacé à ligneux, parfois muni de poils, de verrues ou d'aiguillons sur la face interne.'Graine 1, à albumen parfois ± ruminé, parfois à nombreux alvéoles correspondant aux verrues ou aiguillons de l'endocarpe; embryon petit et situé au sommet ou au milieu de l'albumen ou grand et égalant ± l'albumen.\n\t\t\tFamille groupant 58 genres et ± 350 espèces des régions tropicales et subtropicales; au Congo belge, 13 genres, 31 espèces et 7 variétés.\n\t\t\tLe bois, souvent de structure spéciale, a été étudié et figuré par Sleumer (l.c.); il permet de reconnaître certains groupes. Pour le pollen, voir A.O. Dahl (Journ. Arn. Arb., XXXIII, p. 252-286, t. 1-9, 1952).

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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 - FTEA
    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
    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
    • C The Trustees of the Royal Botanic Gardens, Kew
    Flore d'Afrique Centrale
    https://www.floredafriquecentrale.be
    • D http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    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.
    • E Missouri Botanical Garden
    Icacinaceae
    World Flora Online Data. 2017.
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).