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SPICULEA (spiked column wings) CILIATA (soft hairs on the
labellum). This remarkable orchid is the product of a much harsher
environment than that of the present. It has adapted to survive, flower
and reproduce in the summer months (November to January) when all surface
moisture is absent. It is widely distributed inland to the goldfields
and west to the Darling Scarp where it grows in thin layers of moss and
soil on and around granite sheets of rock. To withstand the
environmental hazards, the leaf and stem dry off from the base upward to
force the sap up the succulent stem enabling the buds to open in
turn. This survival trait is demonstrated well when a plant can be
plucked, placed in a letter and sent by post without any protection half
way across the world to the USA or to Europe, and when received the buds
will continue to open. The pollinating strategy is similar to that of
the Drakea where the insect imitating labellum is attached to a
wiry stem hinged in the centre. Although not sensitive it can only move in
the direction of the column (as with Drakea) and achieves
pollination via pseudo-copulation. The male wasps, attempting to carry off
the sham female, are carried forward and guided by the spiked column wings
either to transfer pollen to the stigma or to be daubed with pollen to be
carried to another plant. A truly remarkable orchid.
Ron Heberle April 2003
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