e-Key <span id="jodit_selection_marker_1703062827703_7813068326113719" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Arec<span id="jodit_selection_marker_1703062827703_642070790465167" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

MONOCOTYLEDON - ARECIDAE - ARECALES - Arecaceae

Compiled by H.F. Glen

Description:

  • Evergreen trees or shrubs, often suckering, rarely scandent or acaulescent, dioecious, monoecious or polygamous
  • Trunks usually unbranched, rarely forked, fibrous, covered with persistent leaf bases or with bossed transverse scars
  • Leaves in juvenile stage usually simple and plicate, on mature plants in a terminal crown, compound, pinnate to palmate, with folds tearing apart with unfolding; petiole and/or rachis often armed with prickles, lobes toothed or serrate
  • Spadix simple or compound, enclosed in a spathe in bud stage; bracts and bracteoles usually present
  • Flowers many, small, usually unisexual, with males in upper and females in lower half of spadix, or bisexual
  • Sepals 3, free or fused below
  • Petals 3, free or fused below
  • Male flowers: stamens usually 6, rarely many; anthers 2-thecous, opening lengthwise, with copious pollen; rudimentary carpels sometimes present
  • Female flowers: staminodes sometimes present; carpels free or fused basally, mostly 3-locular; ovule solitary in each locule, erect or pendulous
  • Fruit a 1-3-seeded drupe or berry; pericarp smooth, rough, or scaly

Nomenclature:

  • Arecaceae
    • Wright: 28 (1897)
    • Dyer: 215 (1952)
    • Tomlinson: 96 (1962)
    • Friedrich-Holzhammer: 1 (1967)
    • Dransfield: 1 (1986)
    • Uhl & Dransfield: 161 (1987)

Distribution & Notes:

  • Global: Genera ± 200, species ± 1 200, ± cosmopolitan, widespread throughout warmer regions, solitary or gregarious, usually hygrophilous
  • Southern Africa: Genera 5, species 6

References:

  • DRANSFIELD, J. 1986. Flora of tropical East Africa. Palmae
  • DYER, R.A. 1952. A note on the distribution of the palms of South Africa with special reference to Borassus in the Transvaal. South African Journal of Science 48
  • FRIEDRICH-HOLZHAMMER, M. 1967. Arecaceae. Prodromus einer Flora von Südwestafrika 161
  • TOMLINSON, P.B. 1962. Palms of Africa. Principes 6
  • UHL, N. & DRANSFIELD, J.W. 1987. Genera palmarum. International Palm Society and Allen Press, Lawrence KS
  • WRIGHT, C.H. 1897. Palmae. Flora capensis 7

Resources:

  • Arecaceae genera:
*Borassus Hyphaene Jubaeopsis Phoenix
Raphia