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

Apocynaceae - Asclepiadoideae - Marsdenieae - Tylophora R.Br.

Description :

  • Twining or sometimes erect
  • Leaves petiolate, oblong, linear, ovate, or lanceolate
  • Flowers in a pedunculate or sessile, umbel-like cyme, or in clusters scattered along a single-jointed axis, or along branches of a dichotomously branched cyme or panicle, lateral at nodes
  • Sepals ± as long as corolla tube, sometimes with glands within base
  • Corolla 5-lobed to more than halfway; tube saucer-shaped
  • Corona usually of 5 tubercles adnate to or radiating from near base of staminal column, usually not exceeding filaments
  • Anthers 2-locular, tipped by small, membranous appendage; pollinia globose or ellipsoid, suberect, horizontal or pendulous with short caudicles
  • Follicles usually narrowly fusiform, smooth or transversely ridged
  • Seeds ovate, with narrow, marginal wing
  • x = 11 (aneuploids)

Nomenclature:

  • Tylophora R.Br.
    • Brown: 17 (1810)
    • Brown: 764 (1908)

Distribution & Notes:

  • Global : Species 50, tropical and subtropical parts of Old World
  • Southern Africa : Species 10, Namibia, Northern Province, Mpumalanga, Swaziland, KwaZulu-Natal, Western Cape as far as Knysna District and Eastern Cape

References:

  • BROWN, N.E. 1908. Asclepiadeae . Flora capensis 4,1
  • BROWN, R. 1810. On the Asclepiadeae , a natural order of plants separated from the Apocineae of Jussieu. Memoirs of the Wernerian Natural History Society 1