e-Key <span id="jodit_selection_marker_1710508930663_7085338158366903" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Lepta<span id="jodit_selection_marker_1710508930663_9728686893408884" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ctina
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Rubiaceae - Ixoroideae - Pavetteae - Leptactina Hook.f.

Description:

  • Shrubs
  • Leaves petiolate, usually lanceolate; usually with distinct, pubescent domatia; stipules broadly ovate, conspicuous
  • Flowers in few- to many-flowered, terminal, sessile or subsessile cymes
  • Calyx hairy; tube cylindric or campanulate, equalling ovary; lobes linear-lanceolate, contorted, with short, fleshy setae at base
  • Corolla 5-lobed, white, hairy; lobes lanceolate, shorter than tube, contorted; tube long, cylindric, ± hairy in throat
  • Stamens 5, arising deep in corolla throat, included, or apex of anthers exserted; anthers sessile, linear, sometimes acuminate
  • Ovary 2-locular, with many ovules in each locule on placentas attached to septum; style linear, usually with pollen-collecting hairs at level of anthers; stigma 2-lobed, lobes linear, usually included
  • Fruit indehiscent, ovoid, scarcely or slightly fleshy, often longitudinally ribbed, many-seeded
  • Seeds angular, smooth and glossy, with a hilar pit
  • x = 9, 11 (1 report each)

Nomenclature:

  • Leptactina Hook.f.
    • Hooker: 73, t. 1092 (1871)
    • Hiern: 87 (1877)
    • Hallé: 70 (1970)
    • Bridson & Verdcourt: 688 (1988)

Distribution & Notes:

  • Global: Species 25, tropical Africa
  • Southern Africa: Species 1: Leptactina delagoensis K.Schum. subsp. delagoensis, Northern Province and KwaZulu-Natal

References:

  • BRIDSON, D.M. & VERDCOURT, B. 1988. Flora of tropical East Africa. Rubiaceae (part 2)
  • HALLÉ, N. 1970. Rubiacées (part 2). Flore du Gabon 17
  • HIERN, W.P. 1877. Rubiaceae. Flora of tropical Africa 3
  • HOOKER, J.D. 1871. Leptactina mannii Hook.f. Hooker's Icones Plantarum 11