e-Key v3 - Antherotoma
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Melastomataceae - Antherotoma (Naudin) Hook.f.

Description :

  • Herbs, often unbranched, covered with setae
  • Leaves opposite, subsessile, spaced, usually lanceolate, entire
  • Flowers few, congested at ends of stems or branches
  • Calyx 4-lobed; tube membranous, campanulate; lobes shorter than tube, ovate, obtuse, with few long setae
  • Petals 4, arising in mouth of calyx tube, obovate, scarcely clawed, with few setae at tip
  • Stamens 8, equal, arising in mouth of calyx tube, about as long as petals; dorsifixed; pedoconnective (prolongation of connective below anther thecae) strictly without heel or 'talon,' outgrowth often reduced but always present, bilobed or bipartite; anthers 1-thecous, opening by a terminal pore
  • Ovary inferior, 4-locular, with many ovules in each locule, with a crown of setae at apex; style thick, terete, slightly longer than stamens; stigma subcapitate
  • Fruit a capsule enclosed in calyx
  • Seed sculptured

Nomenclature:

  • Antherotoma (Naudin) Hook.f.
    • Hooker: 745 (1867)
    • Fernandes & Fernandes: 229 (1978)
    • Jacques-Félix: 268, 282 (1995)

Distribution & Notes:

  • Global : Species 11 in Africa
  • Southern Africa : Species 3, Namibia, Botswana, Northern Province, North-West, Gauteng, Mpumalanga, Swaziland, KwaZulu-Natal, Eastern Cape

References:

  • FERNANDES, R. & FERNANDES, A. 1978. Melastomataceae . Flora zambesiaca 4
  • HOOKER, J.D. 1867. Melastomataceae . In G. Bentham & W.J. Hooker, Genera plantarum . Reeve, London
  • JACQUES-FÉLIX, H. 1995. Histoire des Melastomataceae d'Afrique. Bulletin du Muséum National d'Histoire Naturelle. Paris 16,4, section B Adansonia 2-4