Base de données des plantes d'Afrique

Graphorkis lurida (Sw.) Kuntze
Informations sur le genre : Graphorkis
Basionyme : Limodorum luridum Sw.
Statut pour TA : accepté (présent)
Synonyme(s) homotypique(s)
 Angraecum luridum (Sw.) Lindl.
 Eulophia lurida (Sw.) Lindl.
 Eulophiopsis lurida (Sw.) Schltr.
 Limodorum luridum Sw.
Synonyme(s) hétérotypique(s)
=Eulophia virilis Lindl. (1862)
=Eulophia longicollis Lindl. (1862)
Ecologie et distribution
Afr. Trop.
Biologie : Epiphytic robust herb; pseudobulbs clustered, each ovoid, 3-9x1-4 cm, yellowish, ribbed, at their base a large tuft of erect white aerial roots; leaves 4-6-9 on top of pseudobulbs, deciduous in dry season, lanceolate-acute, stiff, 10-45x2-5 cm, ribbed, with a hard prominent midrib; inflorescence paniculate, basal, appearing after the fall of the leaves, 15-70 cm long, branches 3-22 cm long; bracts ± elliptic, 8-25 mm long; flowers yellow and brown, 10-15 mm Ø; pedicel and ovary slender, 10-15 mm long; sepals oblong-spathulate, 5-6x1,5 mm; petals elliptic, 4-6x2,5-3 mm; lip deep yellow; c. 5 mm long, 3 mm wide; side lobes erect, mid-lobe obovate, 2-fid, with 2 fleshy keels; spur cylindrical, obtuse, 3-4 mm long, bent forward, purple; fruit 30 mm long, not pendent, yellow (ripe).
Ecologie : From lowland grassland to upland forest; Gilbertiodendron dewevrei forest; rain-forest; riverine forest; forest edges; forest of Aningeria altissima, Morus mesozygia, Antiaris toxicaria, on Ficus lutea and other canopy trees; secondary forest; coffee and cocoa plantations; shrub fringes of inselbergs on small shrubs; on trees in forest or on isolated trees, usually forming large clumps in lower forks; on street trees; on palms (Borassus) in savanna in sunny situations, also on palms (Elaeis guineensis) in wetter sites; often on Hyphaene palms, on Vitellaria paradoxa (Selbyana 27: 72-78, 2006), Berlinia; often with other epiphytes, e.g. Platycerium; 5-1470 m alt.
  Bioko/Fernando Poo, S. Tomé, Príncipe (Stévart & de Oliveira, Guide orchid. S. Tomé & Príncipe: 154, 2000; Bothalia 41: 64, 2011).
  Resembling Eulophia leonensis but [an epiphyte and] inflorescences branched, spur and fruit not pendent.
Plus d'info sur :
voir d'autres informations sous Jstor_African Plant Initiative
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carte afrique num 46943
Enregistrement n°46943 modifié le 2015-09-28
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