e-Key v3 - Widdringtonia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Cupressaceae - Widdringtonia Endl.

Description:

  • Monoecious trees or shrubs; wood fragrant, easily worked, containing oil and resin
  • Leaves: juvenile leaves needle-like and subspirally arranged; adult leaves scale-like and appressed, decussate or alternate but not in whorls of 3 or 4
  • Male cones small, ± 4 mm long, solitary, terminal, mostly on short lateral branchlets; scales in (5)6(7) pairs, decussate, coriaceous, peltate, normally with 4 pollen sacs at base of each scale
  • Female cones small, axillary, on elongated shoots, single or clustered; scales 4(5 or 6) of equal size and arranged in one whorl, corky-coriaceous, apiculate, divaricate at time of pollination, then closing; ovules several at base of each scale; mature cones woody, 13-25 mm in diameter, opening at apex, with 4 very thick, woody valves, often with a prominent dorsal cusp; exterior of valves smooth to warty
  • Seeds ovoid or trigonous, winged; testa crustaceous; cotyledons 2, rarely 3, green, needle-like

Nomenclature:

  • Widdringtonia Endl.
    • Endlicher: 25 (1842)
    • Stapf: 15 (1933)
    • Marsh: 43 (1966)
    • Page: 309 (1990)
    • Von Breitenbach & Von Breitenbach: 181 (1992)

Distribution & Notes:

  • Global: Species 3, tropical and southern Africa
  • Southern Africa: Species 3, Northern Province, Mpumalanga, KwaZulu-Natal, Western and Eastern Cape, with 1 extending into tropical Africa

References:

  • ENDLICHER, S.L. 1842. Mantissa botanica sistens generum plantarum supplementum secundum. Beck, Wien
  • MARSH, J.A. 1966. Cupressaceae. Flora of southern Africa 1
  • PAGE, C.N. 1990. Cupressaceae. In K. Kubitzki, The families and genera of vascular plants 1 Springer-Verlag, Berlin
  • STAPF, O. 1933. Cupressaceae. Flora capensis 5, 2 (Supplement)
  • VON BREITENBACH, F. & VON BREITENBACH, J. 1992. Cupressaceae. Tree atlas of southern Africa section 1. Dendrological Foundation, Pretoria