e-Key <span id="jodit_selection_marker_1710246803605_6103201667361446" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Hymenodi<span id="jodit_selection_marker_1710246803605_79125374883387" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ctyon
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Rubiaceae - Cinchonoideae - Cinchoneae - Hymenodictyon Wall.

Description:

  • Shrubs or small trees, occasionally lianes
  • Leaves petiolate, deciduous, often with domatia in nerve axils; stipules entire or glandular-serrate, deciduous
  • Flowers in elongate, spicate or capitate inflorescences; spikes composed of 1-3-flowered cymes in axils of minute or moderate-sized bracts
  • Calyx 5-lobed; lobes linear to lanceolate, deciduous; tube subglobose
  • Corolla 5-lobed, white; lobes short, erect, valvate; tube funnel-shaped, glabrous within
  • Stamens 5; anthers subsessile, arising somewhat below glabrous throat of corolla, included
  • Disc annular
  • Ovary 2-locular, with many ovules on ascending cylindrical placentas attached to septum; style filiform, exserted; pollen presenter ellipsoid, obscurely 2-lobed
  • Fruit an oblong or fusiform capsule, with loculicidal dehiscence
  • Seeds many; testa produced into membranous wings
  • x = 11 (8, 21 - 1 report each)

Nomenclature:

  • Hymenodictyon Wall.
    • Wallich: 148 (1824)
    • Bridson & Verdcourt: 452 (1988)
  • Kurria Hochst.
    • Hochstetter: 233 (1842)

Distribution & Notes:

  • Global: Species 20, Old World east to Sulawesi
  • Southern Africa: Species 1: Hymenodictyon parvifolium Oliv. subsp. parvifolium, Northern Province

References:

  • BRIDSON, D.M. & VERDCOURT, B. 1988. Flora of tropical East Africa. Rubiaceae (part 2)
  • HOCHSTETTER, C.F.F. 1842. Nova genera plantarum Africae tum australis tum tropica borealis proponit et describit. Flora 25
  • WALLICH, N. 1824. In W. Roxburgh, Flora Indica, edn Carey, 2. Mission Press, Serampore