e-Key <span id="jodit_selection_marker_1709024464390_12043490305753624" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 -<span id="jodit_selection_marker_1709024464390_21030272204630274" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span> Dais
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Thymelaeaceae - Dais L.

Description:

  • Shrubs or small trees
  • Leaves opposite or irregularly spaced, expanded
  • Flowers pink, in dense, pedunculate heads, subtended by an involucre of 2-6 broad bracts
  • Calyx hairy, 5-lobed; tube cylindric, often slightly curved; lobes lanceolate, much shorter than tube
  • Petals 0
  • Stamens 10, inserted in calyx tube, of different lengths; anthers bright yellow, oblong, shorter than filaments
  • Disc fleshy, cupular, unequal-sided
  • Ovary sessile, 1-locular, with solitary ovule, with long hairs on upper part; style somewhat exserted; stigma green, globose, with glandular hairs
  • Fruit dry, enclosed in base of calyx tube
  • Seeds black, ovoid, with crustaceous, pustulate testa
  • x = 9 (1 report)

Nomenclature:

  • Dais L.
    • Linnaeus: 556 (1762)
    • Wright: 2 (1915)
    • Verdoorn: t. 869 (1942)
    • Domke: 108, 133 (1934)
    • Peterson: 631 (1958)
    • Peterson: 16 (1978)

Distribution & Notes:

  • Global: Species 2, one each in Africa and Madagascar
  • Southern Africa: Species 1: Dais cotinifolia L., Gauteng, Mpumalanga, Swaziland, KwaZulu-Natal, Lesotho and Eastern Cape

References:

  • DOMKE, W. 1934. Untersuchungen über die systematische und geographische Gliederung der Thymelaeaceen. Bibliotheca Botanica 27,3
  • LINNAEUS, C. 1762. Species plantarum, edn 2. Laurentius Salvius, Stockholm
  • PETERSON, B. 1958. Beiträge zur Kenntnis der Flora von Süd-Rhodesia X. Botaniska Notiser 111
  • PETERSON, B. 1978. Flora of tropical East Africa. Thymelaeaceae
  • VERDOORN, I.C. 1942. Dais cotinifolia. Flowering Plants of South Africa 22
  • WRIGHT, C.H. 1915. Thymelaeaceae. Flora capensis 5,2