e-Key <span id="jodit_selection_marker_1707212704169_10016835627821075" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Bothrio<span id="jodit_selection_marker_1707212704169_984501305523638" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>cline
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Vernonieae - Bothriocline Oliv. ex Benth.

Description:

  • Perennial or rarely annual herbs or shrubs
  • Leaves alternate, opposite or sometimes whorled, subsessile, broadly lanceolate, serrate
  • Capitula discoid, many-flowered; solitary or corymbose
  • Involucre campanulate or cyathiform; bracts in few to many rows, the outer smallest with scarious margins
  • Receptacle plane or alveolate
  • Corolla purple or mauve; tube cylindric below, widening above; lobes 5, ovate-lanceolate
  • Anthers shortly and bluntly sagittate, with lanceolate, membranous, apical appendage; connective ± slightly swollen near base
  • Style exserted; arms filiform, thinly hispid
  • Cypselas oblong-obovoid, 4-angled, often strongly 4-ribbed, glabrous except for minute tubercles between ribs
  • Pappus of few, barbellate, caducous bristles
  • x = 10 (9 - 1 report) (polyploidy)

Nomenclature:

  • Bothriocline Oliv. ex Benth.
    • Bentham: 226 (1873)
    • Oliver & Hiern: 265 (1877)
    • Phillips: 776 (1951)
    • Bremer: 218 (1994)
  • Volkensia O.Hoffm.
    • Hoffmann: 387 (1889)

Distribution & Notes:

  • Global: Species ± 30, in tropical Africa
  • Southern Africa: Species 1: Bothriocline laxa N.E.Br., Northern Province, Mpumalanga and Swaziland

References:

  • BENTHAM, G. 1873. Compositae. In G. Bentham & J.D. Hooker, Genera Plantarum 2. Lovell Reeve & Co., London
  • BREMER, K. 1994. Asteraceae, cladistics & classification. Timber Press, Portland, Oregon
  • HOFFMANN, K.A.O. 1889. Compositae. Die natürlichen Pflanzenfamilien 4,5
  • OLIVER, D & HIERN, W.P. 1877. Compositae. Flora of tropical Africa 3
  • PHILLIPS, E.P. 1951. The genera of South African flowering plants, edn 2. Memoirs of the Botanical Survey of South Africa No. 25

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