e-Key <span id="jodit_selection_marker_1709033102049_2877030173087909" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Diplorhy<span id="jodit_selection_marker_1709033102049_12916884037928478" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>nchus
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Apocynaceae - Plumerioideae - Plumerieae - Diplorhynchus Welw. ex Ficalho & Hiern

Description:

  • Shrubs or small trees
  • Leaves opposite, simple, entire, petioled; axillary glands obscure or 0; stipules 0
  • Inflorescence a terminal, often lax, panicle
  • Flowers fairly small, fragrant
  • Calyx small, eglandular within; sepals 5, almost free, ovate, pubescent
  • Corolla salver-shaped; tube much longer than calyx, cylindric to subcampanulate, without appendages, slightly widened above middle and constricted at mouth, glabrous within; lobes oblong to linear-oblong, overlapping to the left
  • Stamens 5, included, inserted in widened part of tube; filaments short; anthers 4-locular, ovate, acute, longer than filaments, bilobed at base
  • Disc 0
  • Ovary of 2 free carpels; style shorter than corolla tube, terete; stigma at level of anthers, thickened, with bifid apiculus; ovules 2-4 in each carpel
  • Mericarps 2, follicular, woody, spreading, oblong, compressed, sometimes slightly curved, apiculate, lenticellate, dehiscent
  • Seeds compressed, winged
  • x = 11 (1 report)

Nomenclature:

  • Diplorhynchus Welw. ex Ficalho & Hiern
    • Ficalho & Hiern: 22 (1881)
    • Codd: 264 (1963)
    • Plaizier: 451 (1985)

Distribution & Notes:

  • Global: Species 1: Diplorhynchus condylocarpon (Müll.Arg.) Pichon; tropical and southern Africa
  • Southern Africa: Namibia, Botswana, Northern Province, North-West, Gauteng and Mpumalanga

References:

  • CODD, L.E. 1963. Apocynaceae. Flora of southern Africa 26
  • FICALHO, F.M.C. DE MELLO, DE & HIERN, W.P. 1881. On Central-African plants collected by Major Serpa Pinto. Transactions of the Linnean Society of London 2, 2
  • PLAIZIER, A.C. 1985. Apocynaceae: Adenium, Catharanthus and Diplorhynchus. Flora zambesiaca 7,2