e-Key <span id="jodit_selection_marker_1710325964894_5756361879356255" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Jacquem<span id="jodit_selection_marker_1710325964894_2790135849925264" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ontia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Convolvulaceae - Jacquemontia Choisy

Description:

  • Twining herbs, sometimes annual
  • Leaves ovate, sometimes cordate, petiolate, usually entire
  • Flowers in axillary, pedunculate cymes or heads; bracteoles various
  • Calyx of 5 leafy sepals; sepals equal or outer longer than inner
  • Corolla united, campanulate or funnel-shaped, limb plicate, shallowly 5-lobed
  • Stamens arising near base of corolla tube, included; filaments linear; anthers oblong
  • Ovary 2-locular, with 2 ovules in each locule; style simple, included
  • Stigmas 2, ovate or oblong
  • Fruit a globose capsule, dehiscing into 4(8) valves
  • Seeds rounded on back with 2 flat lateral faces and ± 3-angled in cross section, glabrous
  • x = 9 (10)

Nomenclature:

  • Jacquemontia Choisy
    • Choisy: 476 (1833)
    • Meeuse: 699 (1957)
    • Meeuse & Welman: 32 (2000)
  • Thyella Raf.
    • Rafinesque: 84 (1836)

Distribution & Notes:

  • Global: Species ± 120, mainly America, a few in tropical Africa, Asia and Australia
  • Southern Africa: Species 1: Jacquemontia tamnifolia (L.) Griseb., Namibia, Botswana, Northern Province, Mpumalanga, Swaziland, KwaZulu-Natal

References:

  • CHOISY, J.D. 1833. Calonyction, Jacquemontia, Pharbitis, Shutereia. Mémoires de la Société de Physique et d'Histoire Naturelle de Genève 6
  • MEEUSE, A.D.J. 1957. The South African Convolvulaceae. Bothalia 6
  • MEEUSE, A.D.J. & WELMAN, W.G. 2000. Convolvulaceae. Flora of southern Africa 28,1
  • RAFINESQUE-SCHMALTZ, C.S. 1836. Thyella, Turbina. Flora telluriana 4. Published by author, Philadelphia