Ophrys pigmentation demonstrates bilateral symmetry

While travelling in Attica, Greece, Marco Klüber photographed this special Ophrys helenae which demonstrates the bilateral symmetry of orchid flowers. The left half of the lip shows the regular red-brown coloring while the right half is hypochrome, with a partial loss of pigments. The lighter red hues are preserved, in addition to the chlorophyll in the lower edges.

Orchid flowers have a bilateral symmetry – as it’s the case with beetles or the human face elsewhere in nature. Other plants like the flowers of liliaceae have a radial symmetry with three or more mirror lines.

On his trip Marco also saw the albiflora form of Anacamptis papilionacea subsp. messenica (formerly subsp. heroica):

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