e-Key <span id="jodit_selection_marker_1710763809057_3847323789710455" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Macrope<span id="jodit_selection_marker_1710763809057_42372298575939826" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>talum
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Apocynaceae - Asclepiadoideae - Ceropegieae - Macropetalum Burch. ex Decne.

Description:

  • Perennial herbs with tuberous rootstock
  • Stems slender, erect, simple or branched
  • Leaves sessile, simple, linear-filiform
  • Flowers 2-4 together, fascicled at nodes
  • Calyx shortly basin-shaped at base, with lobes longer than tube
  • Corolla with very short tube; lobes linear-filiform, reflexed against pedicel
  • Corona of 5 lobes, arising above base of staminal column and adnate to it up to base of anthers, free above; lobes opposite anthers, simple or sometimes minutely 2- or 3-toothed at apex
  • Anthers 2-locular, with an ovate, erect, membranous appendage
  • Pollinia erect, elliptic, with very short caudicles
  • Style head semiglobose
  • Follicles erect, slender, smooth

Nomenclature:

  • Macropetalum Burch. ex Decne.
    • Decaisne: 626 (1844)
    • Brown: 798 (1908)

Distribution & Notes:

  • Southern Africa: Species 1: Macropetalum burchellii Decne., Northern Province, North-West, Mpumalanga, Free State and Eastern Cape

References:

  • BROWN, N.E. 1908. Asclepiadeae. Flora capensis 4,1
  • DECAISNE, J. 1844. Asclepiadeae. In A.P. de Candolle, Prodromus 8. Treuttel & Würtz, Paris