Base de données des plantes d'Afrique


Sansevieria dumetescens L. E. Newton
Famille : Dracaenaceae
Famille (APGIII) : ASPARAGACEAE
Informations sur le genre : Sansevieria
 
 
Statut
Statut pour TA : accepté (présent)
 
Synonyme(s) hétérotypique(s)
=Sansevieria arborescens auct. sensu N.E.Brown (1915) and sensu Mbugua (2007), non Gérôme & Labroy (1903)
 
Ecologie et distribution
Afr. Trop.
Biologie : Rhizomatous, caulescent herb forming dense clumps of closely packed shoots to 2 m or more Ø; stem erect, to 1,6 m tall, 2-2,5 cm Ø, unbranched; leaves many, densely spiralled, spreading, recurved, above concave-channelled, 40-55x3-4,5 cm, base forming a sheath 2-3 cm long, margins slightly wavy, whitish or reddish, apex with a spine 1,3-1,7 cm long; inflorescence to 55 cm long, paniculate and glomerulate, main axis 1 cm Ø at base, with to 18 branches, many with secondary branching, lowermost branches to 20 cm long, uppermost 6-8 cm long; flowers in clusters of 4-6, white, tube 6 mm long, white with pale brown stripes along midrib of fused segments, lobes 9 mm long; fruit unknown.
Ecologie : Within or at edge of dry coastal forest and thornbush in diffused light; sometimes fully exposed to sun; degraded Cynometra, Brachylaena forest; c. 150-160 m alt.
  Similar to S. arborescens, S. ascendens, S. powysii (cf. Bradleya 28: 25, 2010, cross-sections of leaves).
  Butler (Sansevieria 26: 7-12, 2012) reports that S. dumetescens is one of the parents of a hybrid produced by Pfenning, very much resembling S. powellii; the other parent is S. robusta.

Bibliographie pour l'Afrique Australe :
  • Bradleya 27: 157 (2009).
 
Plus d'info sur :
voir d'autres informations sous Jstor_African Plant Initiative
 
Carte
carte afrique num 201349
 
Enregistrement n°201349 crée le 2009-08-07 - modifié le 2009-08-07
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