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

Araceae - Aroideae - Zantedeschia Spreng.

Description :

  • Acaulescent herbs with rhizomatous or discoid tubers
  • Leaves simple, several per shoot, glabrous, rosulate, deciduous or evergreen; with 2 or 3 subulate cataphylls; petiole long, lacking apical pulvinus, base sometimes mottled or striped with white or purple, sometimes with trichomes; lamina variable, lanceolate, ovate or orbicular, with or without white pellucid spots
  • Inflorescence contemporary with leaves; peduncle usually as long as, or longer than leaves
  • Spathe cylindrical or funnel-shaped, convolute at base, with or without a purple-coloured blotch at base within, persistent, limb spreading, truncate to acute, white, cream, yellow, pink or red
  • Spadix shorter than spathe, sessile or sometimes ± stipitate; basal portion pistillate, apical portion staminate
  • Flowers without perianth segments
  • Male flowers with stamens free; anthers sessile, oblong, truncate at apex, dehiscing by apical pores; pollen white, emitted in fine long threads
  • Female flowers with or without staminodes; ovary 3-locular; ovules 1-8 per locule, with axile or subapical placentation; style short, terete; stigma capitate
  • Fruit a berry; few- to many-seeded, green or orange when ripe
  • Seeds subglobose or ovoid, mucilaginous, verrucose; with abundant endosperm
  • x = 8

Nomenclature:

  • Zantedeschia Spreng.
    • Sprengel: 756, 765 (1826)
    • Letty: 8 (1962)
    • Letty: 5 (1973)
    • Singh et al.: 321 (1996)
    • Mayo et al.: 232 (1997) name conserved
  • Richardia Kunth
    • Kunth: 433, 437, t. 20 (1818)
    • Brown: 37 (1897)
    • Brown: 167 (1901)
    • Peter: 197 (1930)~(Page number suspect - No access to the publication)
  • Pseudohomalomena A.D.Hawkes
    • Hawkes: 147 (1951)

Distribution & Notes:

  • Global : Species 8, occurs mainly in southern Africa
  • Southern Africa : Widespread but absent in Northern Cape

References:

  • BROWN, N.E. 1897. Aroideae . Flora capensis 7
  • BROWN, N.E. 1901. Flora of tropical Africa 8
  • HAWKES, A.D. 1951. A new genus of Ecuadorean Araceae . Madroño 11
  • KUNTH, C.S. 1818. Richardia . Mémoires du Museum Nationale d'Histoire Naturelle, Paris 4
  • LETTY, C. 1962. Wild flowers of the Transvaal . Hortors, Johannesburg
  • LETTY, C. 1973. The genus Zantedeschia . Bothalia 11
  • MAYO, S.J., BOGNER, J., BOYCE, P.C. 1997. The genera of Araceae . Royal Botanic Gardens, Kew
  • PETER, A. 1930. Heterolobium , Microculcas . Nachrichten der Gesellschaft der Wissenschaften in Göttingen, Mathematisch-Physikalische Klasse 1929 (3)
  • SINGH, Y., VAN WYK, A.E. & BAIJNATH, H. 1996. Taxonomic notes on the genus Zantedeschia Spreng. ( Araceae ) in southern Africa. South African Journal of Botany 62
  • SPRENGEL, K.P.J. 1826. Systema vegetabilium 3. Dieterich, Göttingen