e-Key v<span id="jodit_selection_marker_1710751851261_6751358210250069" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>3 - *L<span id="jodit_selection_marker_1710751851261_910357186646646" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>itsea
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Lauraceae - *Litsea Lam.

Description:

  • Small trees or shrubs
  • Leaves alternate to opposite or rarely subverticillate, penninerved, glabrous, often aromatic
  • Inflorescences axillary, consisting of false umbels with up to ± 15 flowers arranged in (sometimes condensed) racemes, before anthesis with an involucre of decussate, usually persistent bracts, appearing with or before new leaves
  • Flowers unisexual, 3-merous
  • Perianth: tube almost flat to deeply cup-shaped, persistent and enlarged as a ± developed fruit cup on a usually not enlarged pedicel
  • Tepals 0-9, equal or unequal, yellow, green, or white, glabrous, often caducous during anthesis
  • Male flowers with 5-20 fertile stamens, several inner ones with glands (irregularly 3-merous flowers with 9 stamens, the third whorl with 2 glands); filaments usually longer than anthers; anthers 4-locular, all introrse or basal pair of third staminal whorl lateral; staminodes usually 0; pistillode well developed to 0; receptacle small and flat
  • Female flowers with 9-12 staminodes
  • Ovary globose or ovoid; style thick; stigma dilate
  • Fruit a red drupe, globose-ovoid or subcylindrical, seated in a ± developed cup or disc; tepals usually deciduous
  • x = 12 (polyploidy)

Nomenclature:

  • *Litsea Lam.
    • Lamarck: 574 (1792) name conserved
    • Meisner: 220 (1864)
    • Bentham: 161 (1880)
    • Pax: 119 (1889)
    • Hooker: 155 (1890)
    • Kostermans: 240 (1957)
    • Van der Werff: 385 (1991)
    • Rohwer: 388 (1993)

Distribution & Notes:

  • Global: Species ± 400, Asia with fewer in Australia and the Pacific Islands, a few in North and South America, none native in Africa or Europe
  • Southern Africa: Species 1: *Litsea sebifera Pers., introduced from Asia into N KwaZulu-Natal and now naturalised on forest margins

References:

  • BENTHAM, G. 1880. Laurineae. In G. Bentham & J.D. Hooker, Genera plantarum 3,1. Lovell Reeve & Co., London
  • HOOKER, J.D. 1890. Laurineae. The Flora of British India 5
  • KOSTERMANS, A.J.G.H. 1957. Lauraceae. Reinwardtia 4,2
  • LAMARCK, J.B.A.P.M. DE. 1792. Litsé de Chine. Dictionnaire Encyclopédique de Botanique 3,2. H. Agasse, Paris
  • MEISNER, C.F. 1864. Lauraceae. In A. de Candolle, Prodromus 15. Masson & Sons, Paris
  • PAX, F. 1889. Lauraceae. Die natürlichen Pflanzenfamilien III, 2
  • ROHWER, J.G. 1993. Lauraceae. In K. Kubitzki, J.G. Rohwer & V. Bittrich, The families and genera of vascular plants - dicotyledons 2. Springer-Verlag, Berlin
  • VAN DER WERFF, H. 1991. A key to the genera of Lauraceae in the New World. Annals of the Missouri Botanical Garden 78