AFRICAN

ORCHIDS

Oeceoclades petiolata (Schltr.) Garay & P.Taylor, Bot. Mus. Leafl. 24: 269 (1976).
Homotypic Synonyms:
Eulophia petiolata Schltr., Ann. Inst. Bot.-Géol. Colon. Marseille, III, 1: 175 (1913).
Eulophidium petiolatum (Schltr.) Schltr., Repert. Spec. Nov. Regni Veg. Beih. 33: 256 (1925).
Lissochilus petiolatus (Schltr.) H.Perrier, in Fl. Madag. 49(2): 25 (1941).
Description:
Pseudobulbs green, oblong (6-7 x 2.5-3 cm), with 3-5 linear rings (from the fallen sheaths), the most recent (the last developed) hearing 5-7 flabelliform leaves, the new bulb developing prior to flowering. Leaves graminiform, very acute, shorter than the inflorescence, heavily veined, to nearly 5-10 mm wide. Inflorescence 40-50 cm long; cluster simple or sometimes provided with a short basal 2 or 3 flowered branch, very loosely 20-30 flowered; flowers flat, of a brick red; bracts narrow, equal at most to about a third of the length of the pedicel. Sepals and peals nearly similar, oblanceolate or oblong (9.5-12 x 4- 5 mm), obtuse, the median sepal with 3, the lateral sepals with 5, and the petals with 6 veins. Labellum obovate in contour (10 x 8 mm), trilobed in the tipper third; provided basally with 2 very projecting keels, attenuate toward the median lobe; lateral lobes obtuse, with fiat, entire margins; median lobe small, rounded, with its margins undulate-crisped; veins red, 3 times bifurcated toward the lateral lobes and 6-8, finer in the median lobe: spur, side and short (3 x 2 mm), with its oriface 1.5 mm from the base of the column. Column 4 mm long, slightly thickened apically; back margin of the clinandrium enlarged in a small, obtuse angle. Anther (l mm wide), truncate apically, provided behind with a deeply bifid, obtuse appendage. Pedicel 12 mm long, equal to the length of the flower or slightly longer.
Habitat:
From rocky forest, from 1500 m alt;
Flowering:
November
Distribution:
W. Madagascar
References:
Flora of Madagascar Perrier 1939/81; Orchids of Madagascar Hermans, Du Puy. Cribb & Bosser 2007; Field Guide to the Orchids of Madagascar Cribb & Hermans 2009
Images:
Click on each image to see a larger version.

Habitat/In situ  Habitat/In situ  Habitat/In situ 
oeceoclades petiolata 01  oeceoclades petiolata 02  oeceoclades petiolata 03 
Photograph© Etienne
Vennetier Image used
with kind permission.
 
Photograph© Etienne
Vennetier Image used
with kind permission. 
Photograph© Etienne
Vennetier Image used
with kind permission.