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

Plumbaginaceae - Plumbaginoideae - Plumbago L.

Description :

  • Shrubs, shrublets, or subherbaceous
  • Leaves alternate, auricled at base or petiole amplexicaul
  • Inflorescence a terminal elongate spike or raceme
  • Calyx 5-lobed, tubular, outside covered with setae, mostly glandular, sessile or stalked glands, hyaline between the 5-ribs, persistent
  • Corolla funnel-shaped, 5 lobes spreading, tube longer than calyx; blue, red or white
  • Stamens free, broadened at base; filaments filiform from a dilated base pressed to ovary; anthers linear-oblong
  • Ovary ± conical; style terminal, filiform, hairy, divided above into 5 branches, stigmatic along their inner surface; distyly occurs
  • Capsule membranous, circumscissile near base, the caducous part often splitting towards apex with 5 valves
  • x = 7 (6, 8) (polyploidy)

Nomenclature:

  • Plumbago L.
    • Linnaeus: 151 (1753)
    • Linnaeus: (1754)
    • Jussieu: 92 (1789)
    • Brown: 425 (1810)
    • Endlicher: 349 (1837)
    • Boissier: 690 (1848)
    • Hooker: 624 (1876)
    • Oliver: 486 (1877)
    • Wright: 424 (1906)
    • Dyer: 16 (1963)
    • Roessler & Schreiber: 3 (1967)
    • Kubitzki: 527 (1993)

Distribution & Notes:

  • Global : Species ± 24, in warmer regions of both hemispheres
  • Southern Africa : Species 5, widespread in all countries and provinces, rarely common

References:

  • BOISSIER, P.E. 1848. Plumbaginaceae . In A. de Candolle, Prodromus 12. V. Masson & Sons, Paris
  • BROWN, R. 1810. Plumbagineae Juss. Prodromus florae Novae Hollandiae et Insulae van-Diemen 1. J. Johnson & Co., London
  • DYER, R.A. 1963. Plumbaginaceae . Flora of southern Africa 26
  • ENDLICHER, S.L. 1837. Plumbagineae . Genera plantarum secundum ordines naturales disposita 1. Fr. Beck, Vienna
  • HOOKER, J.D. 1876. Plumbagineae . In G. Bentham & J.D. Hooker, Genera plantarum 2. Lovell Reeve & Co., London
  • JUSSIEU, A.L. DE. 1789. Plumbagines, les dentelaires. Genera plantarum secundum ordines naturales disposita . Herissant & Barrois, Paris
  • KUBITZKI, K. 1993. Plumbaginaceae . In K. Kubitzki, J.G. Rohwer & V. Bittrich, The families and genera of vascular plants - dicotyledons , Vol. 2. Springer-Verlag, Berlin
  • LINNAEUS, C. 1753. Species plantarum . Laurentius Salvius, Stockholm
  • LINNAEUS, C. 1754. Genera plantarum , edn 5. Laurentius Salvius, Stockholm
  • OLIVER, D. 1877. Plumbaginaceae . Flora of tropical Africa 3
  • ROESSLER, H. & SCHREIBER, A. 1967. Plumbaginaceae . Prodromus einer Flora von Südwestafrika 105
  • WRIGHT, C.H. 1906. Plumbaginaceae . Flora capensis 4,1