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

Fabaceae - Papilionoideae - Phaseoleae - Erythrinae - Erythrina L.

Description :

  • Shrubs, or trees, or suffrutices with enlarged subterranean rootstocks; usually armed with prickles; variously hirsute
  • Leaves pinnately 3-foliolate, deciduous; leaflets with a pair of glands at base, stipulate
  • Flowers usually in terminal or sometimes axillary racemes, showy, appearing before or with leaves, bracteate; bracts usually hairy, deciduous
  • Calyx with narrow to campanulate tube, 2-lipped or subtruncate, sometimes with tube cleft nearly to base, sometimes woolly-villous to puberulous
  • Petals : vexillum conduplicate-falcate, shortly clawed, sometimes minutely velvety; wings frequently curved, shortly clawed, sometimes eared at base; keel sometimes eared
  • Stamens monadelphous or diadelphous, but vexillary stamen united to staminal tube for varying lengths; anthers uniform
  • Ovary stalked, linear, many-ovuled, usually densely tomentose; style terete, incurved, sometimes hispid below; stigma small, terminal
  • Pod usually falcate, moniliform, compressed or subterete, constricted, armed with prickles
  • Seeds red or brown, elliptic, smooth
  • x = 21 (aneuploids, high polyploidy)

Nomenclature:

  • Erythrina L.
    • Linnaeus: 706 (1753)
    • Harvey: 236 (1862)
    • Collett: 219 (1941)
    • Codd: 507 (1955)
    • Hennessy: 1 (1972)
    • Hennessy: 2 (1991)

Distribution & Notes:

  • Global : Species ± 100, fairly cosmopolitan in warm regions
  • Southern Africa : Species 9, widespread, but not extending into central Northern or Western Cape

References:

  • CODD, L.E. 1955. Notes on certain South African Erythrina species. Bothalia 6
  • COLLETT, D.G. 1941. The South African species of Erythrina . Bothalia 4
  • HARVEY, W.H. 1862. Leguminosae . Flora capensis 2
  • HENNESSY, E.F. 1972. South African erythrinas . Natal Branch, Wildlife Protection and Conservation Society of South Africa, Durban
  • HENNESSY, E.F. 1991. Erythrineae ( Fabaceae ) in southern Africa. Bothalia 21
  • LINNAEUS, C. 1753. Species plantarum , edn 1. Laurentius Salvius, Stockholm