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

Mesembryanthemaceae - Ruschioideae - Lampranthus Group - Smicrostigma N.E.Br.

Description :

  • Low shrublets up to 400 mm high; young stems smooth, succulent, becoming woody with age
  • Leaves decussate, lower parts fused, sheathing stem down to node below, free part deltoid-trigonous, tips recurved; glabrous, up to 13 mm long
  • Flowers solitary, terminal, subsessile, up to 30 mm in diameter, remaining open after first opening
  • Sepals 5, unequal, acuminate
  • Petals white or pink, free towards base
  • Staminodes present, gathered around stamens, pink or purple, rarely white
  • Nectary inconspicuous
  • Ovary ± flat on top; placentas parietal; stigmas 7-10, minute
  • Fruit a 7-10-locular, woody capsule, of Lampranthus type but valves with very narrow wings; expanding keels parallel at base, with diverging awned tips; covering membranes stout; closing bodies 0
  • Seeds brown to black, surface rough
  • Flowering spring to summer
  • Distinguishing characters :
    • Shrubs with stem-sheathing, partially fused leaf pairs
    • Fruit with 7-10 locules

Nomenclature:

  • Smicrostigma N.E.Br.
    • Brown: 72 (1930)
    • Herre: 288 (1971)
    • Smith et al.: 340 (1998)

Distribution & Notes:

  • Southern Africa : Species 1, Smicrostigma viride (Haw.) N.E.Br. The distribution of Smicrostigma stretches from Riversdale in the Western Cape to the Eastern Cape border. It is a typical Little Karoo element found in arid areas north of the Langeberg and Outeniqua Mountains

References:

  • BROWN, N.E. 1930. Mesembryanthemum and some new genera separated from it. Gardeners' Chronicle 87
  • HERRE, H. 1971. The genera of the Mesembryanthemaceae . Tafelberg, Cape Town
  • SMITH, G.F., CHESSELET, P., VAN JAARSVELD, E.J., HARTMANN, H., HAMMER, S., VAN WYK, B-.E., BURGOYNE, P., KLAK, C. & KURZWEIL, H. 1998. Mesembs of the world . Briza, Pretoria