African Plant Database

Laccosperma opacum (G. Mann & H. Wendl.) Drude
Protologue : Bot. Zeitung (Berlin) 35: 635 (1877); H.Wendl., Palmiers 249 (1878)
Information on the genus : Laccosperma
Basionym : Calamus opacus G. Mann & H. Wendl.
Status for TA : accepted (present)
Synonym(s) Homotypic
 Calamus opacus G. Mann & H. Wendl. (1864)
 Ancistrophyllum opacum (G. Mann & H. Wendl.) Drude
 Neoancistrophyllum opacum (G. Mann & H. Wendl.) Rauschert (1982)
 Palmijuncus opacus (Drude) Kuntze
Ecology and distribution
Trop. Afr.
Biology : Stems to 10-15 m long, circular in cross-section; leaves up to 1.2 m long; cirrus 50 cm long; leaflets 2-4-folded, 10-12 on each side of the rachis, sigmoid, inequidistant and unequal in size; inflorescences up to 40 cm long; flowers 8 mm long and 2 mm wide; fruits rounded, 1.2 cm in diameter, covered with pale-brown scales.
Ecology : This is an extremely deep shade tolerant species commonly found in high forest in the lower to mid-canopy (Sunderland, 2012). L. opacum prefers well-drained soils.
  This species can sometimes be confused with L. laeve, from which it can be easily distinguished by the presence of armed leaflet margins.

Bibliography other :
  • Kuntze, C.E.O. (1891). Revisio Generum Plantarum  

Bibliography for Tropical Africa :
  • Fl. Trop. E. Africa, Palmae : 36 (1986).
  • Pl. Mt Cameroon : 179 (1998).
  • Fl. anal. Bénin : 58 (2006).
  • Woody Pl. W. Afr. Forest : 870 (2006).
  • Sosef & al (2006). Check-list des Plantes Vasculaires du Gabon.

Bibliography other :
  • Kerchove de Denterghem, (1878). Les Palmiers; histoire iconographique, géographie, paléontologie, etc. Avec index général des noms et synonymes des espèces connues. Paris
More info on :
see under Jstor_African Plant Initiative
see under Fgui
see under The International Plant Name Index
see under The International Plant Name Index
see under Missouri Botanical Garden
carte afrique num 33287
Record n°33287 modified 2010-11-02
Feedback about this record