Base de données des plantes d'Afrique

Dioscorea burkilliana J. Miège
Protologue : Bull. Inst. Franc. Afrique Noire 20: 48 (1958)
Informations sur le genre : Dioscorea
Statuts nomenclatural : nom invalide
Statut pour TA : rejeté (présent), est synonyme de : Dioscorea burkilliana J. Miège ex R. Hills & Wilkin
Synonyme(s) hétérotypique(s)
=Dioscorea burkilliana J. Miège ex R. Hills & Wilkin (2021)
Ecologie et distribution
Afr. Trop.
Biologie : Climber with annual spiny right-winding stems 5->20 m long, 0,7-2,5 cm Ø at base, not rooting at nodes when in contact with the soil; corm well developed, often very long (up to 1 m) and heavy (> 10 kg), on its undersurface presence of numerous fibrous tubers (that break off easily), usually up to 15 cm long, 2-3 cm Ø, some tubers end in a globular structure (50-200 g weight) containing a yellow starchy tissue which is edible; roots unarmed; skin dark; leaves opposite, sometimes alternate; stipules alternate, broadly triangular, 1-1,5 cm long; petiole 4-11 cm long, slender; blade ovate, 5-16x4-12,5 cm, apex acuminate-glandular, base cordate or rounded with swelling on the margin near the petiole (acarodomatia); inflorescences primrose: male 2-7 in fasciculate spikes or paniculate racemes at apex of branches, 27-45 cm long, leaves bract-like, 0,75-1 mm long; female 1 or in pair, to 20 cm long in fruit; capsule 1,5-3 cm long, 1,8-3,5 cm Ø; seeds spherical.
Ecologie : Cultivations; fallows; forest edges; gallery; semi-deciduous moist rain-forest; secondary forests; clayey-sandy soils; 200-2200 m alt.
  Very difficult to distinguish from D. minutiflora on dried material. Also similar to D. smilacifolia. Near D. pynaertii.
  Also in Angola ? Madagascar ? (fide N’Kounkou & al., 1993). Distribution (our map) in Centr. Afr. Rep., Congo-Brazzaville and Zaire doubtful (confusion with other species ?).
Plus d'info sur :
voir d'autres informations sous Jstor_African Plant Initiative
voir d'autres informations sous The International Plant Name Index
voir d'autres informations sous Missouri Botanical Garden
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Enregistrement n°11259 modifié le 2021-05-11
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