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  1. Family: Balanophoraceae Rich.
    1. Thonningia Vahl

      1. This genus is accepted, and is native to Africa..

    [FZ]

    Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

    Inflorescences
    Inflorescences of involucrate heads of flowers from buds on tuber, unbranched, pedunculate to sessile; peduncles densely covered with imbricate scales; receptacle of male inflorescences flat to slightly convex, of female inflorescences conical to hemispherical Inflorescences of involucrate heads of flowers from buds on tuber, unbranched, pedunculate to sessile; peduncles densely covered with imbricate scales; receptacle of male inflorescences flat to slightly convex, of female inflorescences conical to hemispherical.
    Flowers
    Female flowers: numerous and densely packed in head; perianth cylindrical, irregularly 2–4-lobed; style long-exserted; ovary inferior, 1-locular Male flowers: fewer and less densely packed in head than female; perianth segments spirally arranged, unequal in length and extent of attachment to synandrium; stamens united into a synandrium Female flowers: numerous and densely packed in head; perianth cylindrical, irregularly 2–4-lobed; style long-exserted; ovary inferior, 1-locular. Male flowers: fewer and less densely packed in head than female; perianth segments spirally arranged, unequal in length and extent of attachment to synandrium; stamens united into a synandrium.
    Fruits
    Fruits 1-seeded achenes aggregated into a hemispherical infructescence. Fruits 1-seeded achenes aggregated into a hemispherical infructescence.
    Distribution
    A genus of 1 species restricted to tropical Africa.
    Habit
    Dioecious or rarely monoecious plants. Dioecious or rarely monoecious plants
    Tubers
    Tubers irregularly shaped, emitting horizontal, cylindrical, branched rhizomes. Tubers irregularly shaped, emitting horizontal, cylindrical, branched rhizomes
    [FTEA]

    Balanophoraceae, B. Hansen. Flora of Tropical East Africa. 1993

    Habit
    Plants dioecious
    Tubers
    Tuber rhizome-like, cylindrical, branched, swollen at point of contact with host-root
    Inflorescences
    Inflorescence-bearing stems breaking through buds on the tuber, leaving a short lobed volva basally Inflorescence unbranched, spadix-like with axis obconical, terminally convex, bearing numerous flowers
    Stem
    Stem with numerous spirally arranged triangular-lanceolate scale-leaves
    Flowers
    Male flowers pedicellate; perianth-segments 2–6, linear, spirally arranged; anthers 3–6, linear-elongate, united but with apices finally free, 2-thecous and extrorsely dehiscing Female flowers linear-prismatic, densely crowded, perianth tubular, obscurely 2–3-lobed; style 1, exserted
    Male
    Male flowers pedicellate; perianth-segments 2–6, linear, spirally arranged; anthers 3–6, linear-elongate, united but with apices finally free, 2-thecous and extrorsely dehiscing
    Female
    Female flowers linear-prismatic, densely crowded, perianth tubular, obscurely 2–3-lobed; style 1, exserted
    Infructescences
    Infructescence a swollen hemisphere, bearing minute 1-seeded achenes.

    Images

    Distribution

    Native to:

    Angola, Benin, Burkina, Burundi, Cameroon, Central African Repu, Congo, Ethiopia, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, Liberia, Nigeria, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre

    Accepted Species

    Synonyms

    Other Data

    Thonningia Vahl appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Harris, D.J. [2263], Central African Republic 63119.000

    Bibliography

    First published in Skr. Naturhist.-Selsk. 6: 124 (1810)

    Literature

    Flora of West Tropical Africa

    • Bullock in Kew Bull. 1948: 363.
    • —F.T.A. 6, 1: 436

    Flora Zambesiaca

    • Skr. Naturhist.-Selsk. 6: 124 (1810).
    • in Skr. Naturhist.-Selsk. 6: 124 (1810).

    Flora of Tropical East Africa

    • B. Hansen in E.J. 106: 367 (1986)
    • Hemsl. in F.T.A. 6(1): 436 (1911)
    • Hook.f. in Trans. Linn. Soc. 22: 29, 42, t. 3 (1856)
    • in Skr. Naturhist-Selsk. 6: 124 (1810)

    Sources

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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