1. Family: Alismataceae Vent.
    1. Wiesneria Micheli

      1. This genus is accepted, and its native range is Tropical Africa to Botswana, Madagascar, S. India.

    [FTEA]

    Alismataceae, Susan Carter. Flora of Tropical East Africa. 1960

    Habit
    Perennial aquatic herbs, floating or loosely anchored
    Leaves
    Leaves submerged or partly emersed; petioles up to 60 cm. depending on the depth of the water, terete; leaf-blade linear to linear-lanceolate, much shorter than the petioles
    Inflorescences
    Peduncles shorter than the leaves; inflorescence emersed, spicate, of unbranched whorls of sessile or subsessile flowers; upper whorls of ♂ flowers, lower of ♀ flowers; vegetative buds sometimes present in the lower whorls; bracts 3, connate
    Flowers
    Male flowers: 4–8 flowers in each whorl, shortly pedicellate; bracteoles ovate; sepals 3, ovate; petals 0–3, much smaller than the sepals, membranous; stamens 3, filaments flattened; abortive carpels 2 or 3 Female flowers: 3 to each whorl, ebracteolate; sepals 3, ovate; petals 0–3, very small, membranous; staminodes 3; carpels 3–6, free; styles terminal; stigmas papillose, ovules solitary, basal; achenes ovate, swollen, with lateral air-chambers when mature, beaked with the remains of the style, smooth or ridged.
    Male
    Male flowers: 4–8 flowers in each whorl, shortly pedicellate; bracteoles ovate; sepals 3, ovate; petals 0–3, much smaller than the sepals, membranous; stamens 3, filaments flattened; abortive carpels 2 or 3
    Female
    Female flowers: 3 to each whorl, ebracteolate; sepals 3, ovate; petals 0–3, very small, membranous; staminodes 3; carpels 3–6, free; styles terminal; stigmas papillose, ovules solitary, basal; achenes ovate, swollen, with lateral air-chambers when mature, beaked with the remains of the style, smooth or ridged.

    Images

    Distribution

    Native to:

    Angola, Botswana, Burundi, Cameroon, Central African Repu, Chad, Ethiopia, Guinea-Bissau, India, Ivory Coast, Madagascar, Mali, Nigeria, Senegal, Sierra Leone, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Wiesneria Micheli appears in other Kew resources:

    First published in A.L.P.P.de Candolle & A.C.P.de Candolle, Monogr. Phan. 3: 82 (1881)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa
    • F.W.T.A., ed. 1, 2: 303.
    • F.T.A. 8: 213
    • in DC., Monogr. Phan. 3: 82 (1881)
    Flora of Tropical East Africa
    • in DC., Mon. Phan. 3: 82 (1881)

    Sources

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

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. 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