e-Key <span id="jodit_selection_marker_1703064921518_7069162880393927" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Balanit<span id="jodit_selection_marker_1703064921518_9021716073293353" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

DICOTYLEDON - ROSIDAE - SAPINDALES - Balanitaceae

Compiled by R.H. Archer

Description:

  • Shrubs or trees, with simple or forked spines
  • Leaves alternate, 2-foliolate; leaflets obovate, elliptic or ovate-elliptic, entire; stipules 0
  • Flowers bisexual, regular, in axillary cymes
  • Calyx: sepals 5, free, somewhat leathery, villous on outer surface, tomentose within, 4 inner ones with membranous margins
  • Petals 5, free, somewhat fleshy, imbricate
  • Disc thick, 10-furrowed or 5-lobed
  • Stamens 10, inserted at base of disc; filaments free; anthers 2-thecous, opening by longitudinal slits
  • Ovary superior but partly immersed in disc, 5-locular, globose, with an apical pendulous ovule in each locule, villous; style short, terete or 5-grooved; stigmas 1-5, simple
  • Fruit a fleshy drupe, 1-seeded by abortion
  • Seeds with thick, oily cotyledons; endosperm 0
  • x = 9 (8) (polyploidy)

Nomenclature:

  • Balanitaceae
    • Launert: 221 (1963)
    • Heine & Schreiber: 1 (1966)
    • Hutchinson: 327 (1973) and A.P.G.: 549 (1998) under Zygophyllaceae

Distribution & Notes:

  • Global: Genera 1, species ± 20, mostly in Africa, few in Malaysia
  • Southern Africa: Genera 1, species 4

References:

  • A.P.G. 1998. An ordinal classification for the families of flowering plants. Annals of the Missouri Botanical Garden 85: 531 under Zygophyllaceae
  • HEINE, H. & SCHREIBER, A. 1966. Balanitaceae. Prodromus einer Flora von Südwestafrika 66
  • HUTCHINSON, J. 1973. The families of flowering plants, edn 3, Vol. 1. Clarendon, Oxford
  • LAUNERT, E. 1963. Balanitaceae. Flora zambesiaca 2

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