e-Key <span id="jodit_selection_marker_1707207703416_27241674053583753" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - B<span id="jodit_selection_marker_1707207703416_8548343308375534" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>erula
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Apiaceae - Apioideae - Berula W.D.J.Koch

Description:

  • Perennial herbs, robust, glabrous, sometimes aquatic
  • Leaves elongate, once-pinnate; pinnae fairly regular in size, serrate or toothed on margin
  • Flowers in compound umbels; involucres of many persistent bracts
  • Calyx with 5 small teeth
  • Petals obcordate, with an inflexed apex and keeled down inner face
  • Stamens exceeding petals; filaments filiform; anthers oblong
  • Styles terete, subcapitate
  • Fruit ovate or oblong, laterally flattened, indistinctly ribbed; mericarps convex on back, keeled on face, oil ducts 6, set deep in mesocarp, 4 in furrows, 2 on face; carpophore bipartite
  • Seeds subterete
  • x = 9 (6, 10, 11)

Nomenclature:

  • Berula W.D.J.Koch
    • Koch: 433 (1826)
    • Sonder: 539 (1862), under Sium, in part
    • Cannon: 598 (1978)
    • Burtt: 185 (1991)
    • Pimenov & Leonov: 27 (1993)

Distribution & Notes:

  • Global: Species 1: ± cosmopolitan
  • Southern Africa: Subspecies 1: Berula erecta (Huds.) Coville subsp. thunbergii (DC.) B.L.Burtt, spread almost throughout the region

References:

  • BURTT DAVY, J. 1932. A manual of the flowering plants and ferns of the Transvaal with Swaziland, South Africa 2. Longmans, Green & Co., London
  • CANNON, J.F.M. 1978. Umbelliferae. Flora zambesiaca 4
  • KOCH, W. 1826. Berula. In F.C. Mertens & W.D.J. Koch, J.C. Röhlings Deutschland Flora 2
  • PIMENOV, M.G. & LEONOV, M.V. 1993. The genera of the Umbelliferae. A nomenclator. Royal Botanic Gardens, Kew
  • SONDER, W. 1862. Umbelliferae. Flora capensis 2