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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 March 2007.
Bear in mind that any cultivation notes refer to the sub-tropical conditions of Southern Queensland, Australia.
 Habenaria
rhodocheila Hance
is a showy terrestrial that was described
by Henry Hance in Annales des Sciences Naturelles in 1856, based upon a plant
collected by Sampson in
Canton
(
Kwangtung
),
China. The specific
epithet comes from the Greek rhodo
(rose, rosy-red) and cheilos (lip) for
the rosy coloured lip of the type.
Plants
of Hab. rhodocheila consist of bulbous
or cylindric fleshy roots with an upright stem that is 10-30 cm long.
There are 2-6 stalked leaves at the base of the stem with 3-4 smaller
bract-like leaves borne further along the stem.
The basal linear-lanceolate leaves are 6-12 cm long and 8-30 mm broad.
They are green with a finer network of darker green veins.
Its inflorescence is densely 2-10 (-15) flowered.
The showy flowers
of Hab. rhodocheila have greenish sepals and petals and the prominent
4-lobed, spurred lip varies from scarlet or brick-red to rarely orange, pink or
yellow. Its dorsal sepal and petals
form a green hood above the column. The
slender petals are slightly spathulate and one-veined.
Two colour forms were shown at the last meeting.
One of these had a rose-pink lip and the lip of the other was orange.
The
rarer Hab. carnea has olive green
leaves with pale, almost white, spots. It
is distinguished by the entirely pale pink or sometimes white flowers that have
oblique petals which are broadly ovate with several veins.
Its lip is finely papillose on the upper surface and finely papillose
hairy along the margin.
Widely distributed, Hab. rhodocheila is found from Thailand, Cambodia, Laos, Vietnam, southern China
and south to
Malaya
and Mindanao
in the
Philippines. After
flowering the leaves dies down, leaving the fleshy tubers underground which
should be kept dry. A winter minimum
of 12-15 oC is recommended. After
new green shoots appear the tubers should be repotted and grown under 80% shade.
Any well-drained, moisture-retentive potting medium is suitable.
Care with watering must be given at first until growth is well under way,
after which the plants should not be allowed to dry out.
Too much water during the early stages of new growth can lead to damping
off.
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