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

Apocynaceae - Plumerioideae - Plumerieae - Gonioma E.Mey.

Description :

  • Shrubs or small trees
  • Leaves opposite or 3- or 4-nate; axillary glands few, minute; stipules 0
  • Inflorescence a terminal corymb
  • Flowers small, fragrant
  • Calyx small, eglandular within; sepals 5, free, ovate-elliptic, imbricate
  • Corolla salver-shaped; tube cylindric, much longer than calyx, scarcely widened above middle, without appendages, pilose within; lobes shorter than tube, overlapping to the left
  • Stamens 5, included, inserted ± middle of corolla tube; filaments short, filiform; anthers 4-locular, longer than filaments, lanceolate, acute
  • Disc 0
  • Ovary of 2 free carpels; style shorter than corolla tube, terete; stigma at level of anthers, somewhat thickened, ovate, 2-lobed at apiculate apex; ovules many in each locule, multiseriate
  • Mericarps 2, follicular, coriaceous, oblong or linear-oblong, apiculate, subterete, straight or slightly curved
  • Seeds flat, broadly cuneate or subrectangular, winged at each end

Nomenclature:

  • Gonioma E.Mey.
    • Meyer 188 (1838)
    • Stapf: 503 (1907)
    • Codd: 262 (1963)

Distribution & Notes:

  • Southern Africa : Species 1, Gonioma kamassi E.Mey., in Swaziland, KwaZulu-Natal, Western and Eastern Cape

References:

  • CODD, L.E. 1963. Apocynaceae . Flora of southern Africa 26
  • MEYER, E.H.F. 1838. Commentariorum de plantis Africae australioris . Voss, Leipzig
  • STAPF, O. 1907. Apocynaceae . Flora capensis 4,1