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The following article was written for the
Orchid Species Bulletin published by the Orchid Species Society,
which is based in Brisbane, Queensland in December 2006.
Bear in mind that any cultivation notes refer to the sub-tropical conditions of Southern Queensland, Australia.
Coelogyne mooreana
Sander
ex Rolfe
was sent by Wilhelm Micholitz from the Lang Bian range in
Annam,
Vietnam
to Messrs. Sander & Sons of St. Albans,
England, where it flowered in European cultivation in 1906.
Frederick Sander named it after F.W. Moore, Director of the Glasnevin
Botanic Gardens,
Dublin. Robert Rolfe
formally described it in the Kew Bulletin
in 1907. 'Brockhurst' is one of the well-known choice cultivars of this species.
Coel.
mooreana has clustered pseudobulbs that are borne
along a sheathed rhizome at up to 1 cm intervals.
The ovoid-oblong, weakly ridged pseudobulbs become furrowed with age.
Vaguely or bluntly angled, the yellowish green pseudobulbs are 5-7.5 cm
long. At the apex of each pseudobulb
are two linear-oblanceolate, narrow acute petiolate green leaves. The very
glossy and heavily textured leaves are 25-40 cm long and 2.5-3.5 cm broad.
Erect
racemes that are 20-50 cm long emerge from the centre of the newly developing
growth. The racemes carry 4-8 showy
fragrant flowers, with 5-6 being more usual.
Acute bracts subtending the flowers drop soon after the buds open.
The flowers of
Coel. mooreana are 6-10 cm across and
open more or less simultaneously. They
are pure white with the disc of the lip golden-yellow or ochre to orange.
Its lip has a dense patch of fringed lamellae in the centre.
The fringing has been described as "3 long fimbriate lamellae";
however illustrations show the fringing to be more like a dense random patch.
Endemic to
Vietnam, Coel. mooreana is
found at around 1,300 m altitude and appears to be rare in cultivation.
An intermediate-growing species, Coel.
mooreana requires a well-drained medium and bright light such as about 70%
shading for the south-east
Queensland
region. Maintain
high humidity with good air circulation and water it regularly during the warmer
months. Plants can be given a slight
winter rest with reduced watering frequency, but should not be allowed to remain
dry for long periods.
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