Orchid summer: in search of the wildest flowers of the British Isles

From the chalk downs of the south coast of England to the heathery moorland of the Shetland Isles, and from the holy island of Lindisfarne in the east to the Atlantic frontier of western Ireland, 'Orchid Summer' is a journey into Britain and Ireland's most beautiful corners.

The flowers that are the focus of this treasure hunt are exquisite and diverse.

Some resemble insects and develop scents that mimic the smell of a virgin female wasp in order to lure male wasps to sample their unsatisfying charms.

Some tower above the surrounding vegetation; others are vanishingly small and discrete.

Some are sweetly scented; others smell of ripe billy goats.

Some can be readily found but some will prove more elusive - none more so than the last to flower, the rarest of them all, the ghost orchid.