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

Buddlejaceae - Gomphostigma Turcz.

Description :

  • Suffrutices, canescent, with mostly stellate scales
  • Leaves opposite, rarely ternate, sometimes appearing fascicled, connate at base or with a ridge between them
  • Flowers in terminal racemes; pedicels bibracteate
  • Calyx cuneate at base
  • Corolla tube not longer than calyx; lobes broad, recurved in open flower
  • Stamens arising in throat of corolla; free portion of filament shorter than anthers; anthers exserted or subexserted
  • Capsule subcylindric, 2-lobed, 2-valved, with valves splitting
  • Seeds many

Nomenclature:

  • Gomphostigma Turcz.
    • Turczaninow: 53 (1843)
    • Verdoorn: 168 (1963)
    • Leeuwenberg: 343 (1983)

Distribution & Notes:

  • Global : Species 2, Africa, both extending into southern Africa
  • Southern Africa : Species 2: Gomphostigma virgatum (L.f.) Baill. is a widespread rheophyte, G. incomptum (L.f.) N.E.Br. occurs in karroid areas of the Northern and Western Cape

References:

  • LEEUWENBERG, A.J.M. 1983. Loganiaceae . Flora zambesiaca 7,1
  • TURCZANINOW, P.K.N.S. 1843. Gomphostigma . Bulletin de la Société des Naturalistes de Moscou 16
  • VERDOORN, I.C. 1963. Loganiaceae . Flora of southern Africa 26