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

Amaryllidaceae - Scadoxus Raf.

Description :

  • Deciduous, predominantly rhizomatous herbs
  • Rhizome elongated or with a bulbous part above
  • Leaves several, narrowed into a petiole-like base, present during or after flowering; blade ovate to lanceolate, thin-textured, glabrous, with a distinct midrib; petioles often sheathing to form a false stem, with or without red spotting
  • Inflorescence a many-flowered, compact or spreading head; scape fleshy, stout, solid, slightly compressed, glabrous, erect or drooping in fruit; spathe valves 4 or more, large, ± erect and showy, or thin and early-withering
  • Flowers regular, salver-shaped and spreading apart or narrowly funnel-shaped, erect and dense, rarely drooping, red to orange; pedicels shorter to slightly longer than perigone
  • Tepals connate into a short to long tube; segments connivent or spreading, equalling to longer than perigone tube
  • Stamens erect or spreading, ± equal, arising in perigone throat; filaments filiform, free at base, slightly longer than tepal segments; anthers dorsifixed, versatile
  • Ovary subglobose; ovules 1-few per locule
  • Style erect, filiform, as long as stamens; stigma undivided
  • Berry ovoid to globose, red with yellow flesh
  • Seeds ovoid, ivory-coloured; embryo green
  • x = 9

Nomenclature:

  • Scadoxus Raf.
    • Rafinesque: 19 (1838)
    • Bjørnstad & Friis: 187 (1972a) in part
    • Friis & Nordal: 64 (1976)
  • Gyaxis Salisb.
    • Salisbury: 131 (1866)
    • Bjørnstad & Friis: 243 (1974).
  • Nerissa Salisb.
    • Salisbury: 131 (1866)
    • Bjørnstad & Friis: 254 (1974).
  • Demeusea T.Durand & De Wild.
    • Durand & De Wildeman: 78 (1900)
    • Bjørnstad & Friis: 207 (1972b).
  • Choananthus Rendle
    • Rendle: 237 (1908)

Distribution & Notes:

  • Global : Species 9; widespread in tropical Africa
  • Southern Africa : 3, in all countries and provinces except the Free State, Lesotho and Northern Cape

References:

  • BJØRNSTAD, I.N. & FRIIS, I. 1972a. Studies on the genus Haemanthus ( Amaryllidaceae ) 1. The infrageneric taxonomy. Norwegian Journal of Botany 19
  • BJØRNSTAD, I.N. & FRIIS, I. 1972b. Studies on the genus Haemanthus ( Amaryllidaceae ) 2. A revision of the section Demeusea . Norwegian Journal of Botany 19
  • BJØRNSTAD, I.N. & FRIIS, I. 1974. Studies on the genus Haemanthus ( Amaryllidaceae ) 3. A revision of the sections Gyaxis and Nerissa . Norwegian Journal of Botany 21
  • DURAND, T. & DE WILDEMAN, M.E. 1900. Materiaux pour la flore du Congo 8. Bulletin de la Société Botanique de Belgique 39
  • FRIIS, I. & NORDAL, I. 1976. Studies on the genus Haemanthus ( Amaryllidaceae ) 4. Division of the genus into Haemanthus s.str. and Scadoxus s. str. Norwegian Journal of Botany 23
  • RAFINESQUE, C.S.1838 ('1836'). Flora telluriana , Vol. 4. Rafinesque, Philadelphia
  • RENDLE, A.B. 1908. An account of the plants collected on Mt. Ruwenzori by Dr. A.G.F. Wollaston. Botanical Journal of the Linnean Society 38
  • SALISBURY, R.A. 1866. The genera of plants . John van Voorst, London