Base de données des plantes d'Afrique

Eulophia guineensis Lindl.
Protologue : Bot. Reg. 8: t. 686 (1823)
Informations sur le genre : Eulophia
Statut pour SA : accepté (présent)
Statut pour TA : accepté (présent)
Synonyme(s) hétérotypique(s)
=Eulophia congoensis Cogn. (1895)
=Eulophia guineensis var. kibilana Schltr.
=Eulophia guineensis var. purpurata Kotschy
=Galeandra quartiniana (A. Rich.) Rchb. f.
=Eulophia quartiniana A. Rich. (1850)
=Eulophia guineensis var. tisseranti Szlach. & Olszewski
=Saccolabium abyssinicum A. Rich.
Ecologie et distribution
Afr. Trop.
Biologie : “One of the most attractive species of Eulophia, without the very long inflorescence of many of the other showy species” (I. & E. la Croix, Afric. orchids wild & cult.: 221, 1997). – Terrestrial, occasionally lithophytic herb 30-65(-90) cm tall, with stolon at soil surface connecting ovoid, dark green pseudobulbs (mostly above ground), clustered, conical, 3-3,5x1,5-2 cm; leaves 3-4 on pseudobulb, long-petiolate (2-3 cm long), blade plicate, folded, elliptic, acute, 10-35x3-9,5 cm, margins wavy; inflorescence before (E. quartiniana) or with leaves (E. guineensis), laxly 5-45-flowered, peduncle with to 7 papery sheaths; flowers (“…bears one of the largest and most colourful flowers in the genus”) pink to purple-brown and greenish, sweet-scented, lip paler and sometimes with a magenta blotch in throat; bracts lanceolate, 10-30 mm long; pedicel and ovary 15-25 mm long, arched, purple; sepals and petals spreading, lanceolate, acute, 15-40x3-8 mm, tips reflexed; lip 20-40 mm long, 13-22 mm wide, obscurely 3-lobed near base, without callus; side lobes small; mid-lobe large, ovate-suborbicular, 20-26 mm long, often emarginate, edge undulate; spur very slender, straight, 10-40 mm long; fruit pendent, 20-25 mm long.
Ecologie : Forest; riverine forest; humid gallery forest by stream sides or dry forests; coastal dry forest; bushy meadow; bamboo thicket; in moist sand or lithophyte in depressions on sandstone; border of evergreen thicket on termite mound; dambos; savanna; woodland with Clerodendrum umbellatum; Terminalia brownii woodland; in thicket of Terminalia avicennoides; wooded grassland with Combretum molle, Cussonia arborea, Stereospermum kunthianum, Erythrina abyssinica, Entada abyssinica, etc., at road verge; abandoned cultivation; in shallow soil and leaf litter on large rocks in shade of Sterculia africana and deciduous thicket; “rocky eminences among granite, gneiss or other rocks between which there is a considerable accumulation of humus and which are partly-shaded by scattered trees or shrubs” (Bot. Mag. 171: l.c.); - 550-2330 m alt.
  Liberia ? (Jongkind, Checklist Liber. vascul. pl., 2012); Cape Verde Isl. (Marrero & Almeida Perez in Bot. Macaron. 28: 63-70, 2013; with figs. p. 67, 69, and in Vieraea 42: 241-248, 2014, with figs.); Botswana; Oman, Saudi Arabia, N Yemen.
  Once divided into 3 varieties. The main divisons: - var. guineensis: with fully developed leaves at anthesis, flowering at end of rainy season, apex of lip acute, habitat forest; - var. purpurata (syn.: E. quartiniana, E. congoensis): leaves developed after anthesis, flowering in the beginning of the rainy season, apex of lip rounded or emarginate, habitat savanna; - var tisserantii: leaves fully developed at anthesis, leaf petiole very long and narrow, inflorescence 25-45-flowered, flowers very small; described on a specimen (Tisserant s.n.) collected at Boukoko, Centr. Afr. Rep.; Akoegninou & al. (Fl. analyt. Bénin, l.c.) suggest that these discriminating characters may be due to habitat conditions (burnt vegetation, or not).
  The species was successfully brought into cultivation, and flowers without difficulty (See, e.g., Bellone in Orchidées, Cult. & Protection 36/4: 32-33, 1998). The beautiful plate published in Lindenia 11: pl. 486, 1895 (as E. congoensis) was painted from a specimen recently introduced from Congo that flowered in July 1895 at Linden’s great orchid establishment at Ghent, L’Horticulture Internationale (Belgium). Geerinck (in Fl. Afr. Centr., Orchid. 2: 667, 1992) remarks on the use of the term ‘cultivar’ attributed to certain forms brought into cultivation, such as ‘Anne’, a natural colourful variant occurring in Shaba, Haut-Katanga (Zaire).
Afr. Austr.
Biol./Eco : perennial-Herb, Geophyte- Ht 0.15 - 0.65 m. Alt: ? - 950 m. Distribution: BOT

Bibliographie pour l'Afrique Tropicale :
  • Exell, A. & Wild, H. (1998). Flora Zambesiaca: Mozambique, Federation of Rhodesia and Nyasaland, Bechuanaland Protectorate. London Kew 11[2]: 465
  • Darbyshire, I. Kordofami, M. & al. (2015). The plants of Sudan and south Sudan, An annoted checklist. Kew Publishing

Bibliographie autre :
  • Cat. Pl. Vasc. Burkina Faso:65 (2012)
  • Vieraea 42: 241 (2014).
Plus d'info sur :
voir d'autres informations sous Jstor_African Plant Initiative
voir d'autres informations sous African Plants - a Photo Guide
voir d'autres informations sous The International Plant Name Index
voir d'autres informations sous Orchidées d'Afrique Centrale
voir d'autres informations sous Flora of Zimbabwe
carte afrique num 45751
Enregistrement n°45751 modifié le 2007-04-24
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