E. purpurata
was first described from Hartz massif, Germany by J. E. Smith in 1814
and its name refers to the crimson
colouration of the flowers. The colouration of the species is also
reflected, though somewhat differently in its common name of the Violet Helleborine.
In reality neither of these descriptions really characterize the
species as the overall impression of the
mature plant is one of olive grey, although the stem,
particularly with specimens in better light conditions
is often tinged purple. The flowers which open
widely are variable but usually whitish green and as with
the stem colouration, plants in good light can be vaguely
washed violet. Where the species grows in deep
shade the flower colours are very pale and can lack any
trace of red/violet at all. (see picture 3)
There is however a varietal form that reverses
this last condition and which similarly grows in
heavy shade but which
has lost all its green pigment and is a totally pinkish, lilac in
colour. This is sometimes referred to as variety chloritica and is a plant that completely lacks chlorophyll due to the development of a saprophytic existence.
This species frequently grows in association with E. helleborine and intermediates can occur but in pure populations the plants are easily seperated by the differing leaf characteristics. In E. purpurata the leaves are both thinner and more widely spaced up the stem. Picture 8 depicts an interesting plant from Dorset in Southern England that has become variegated. It is one of a small colony thought to be the most westerly outpost of the species.
The photo's here come from Surrey, Buckinghamshire and Dorset in Southern England.
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