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Last week we paid a visit to coastal
At this site, there are three or four species depending on your choice of nomenclature, Common Spotted Orchid D.fuchsii, Southern Marsh Orchid D.praetermissa, and two Early Marsh Orchids D.incarnata (D.incarnata incarnata) and D.pulchella (D.incarnata pulchella).
As far as I am concerned, this number of Dactylorhiza species growing in the same place and such a small area (the entire site is no more than 400m x 100m) is quite unusual so perhaps given the circumstances it is not surprising that all sorts of strange things have happened (a bit like humans).
D.incarnata presents no problem of identification because the flowers are not purple but a wonderful flesh pink. The top picture shows a few flowers with typical markings and although the outer lip is not bent back something that is supposed to be fairly characteristic!
Having nailed this species, the direct comparison of flowers enables the identification of the other Early Marsh with some certainty, D.pulchella and splendid plants they were too up to 60cm high with intensely coloured flowers and dense spikes, real crackers (above right)!
Interestingly, at least I thought so, the two Early Marsh species tended to grow in separate patches as though their requirements were slightly different.
Moving on there were scattered plants of easily identifiable Common Spotteds D.fuchsii, typical colouring and the clearly indented lobe to the lip. But then there were many more plants that at a distance screamed Common Spot but when you looked closely were similar to the one on the left with an atypical lip shape but still with spotted leaves.
In addition, there were occasional plants that appeared to be pretty standard Southern Marsh Orchid (D.pratermissa) such as the one on the right and non-spotted leaves but then there were those with exactly the same flowers but spotted leaves and so it went on. After a while it became clear we were in the middle of a hybrid swarm, not as dangerous as a bee swarm unless you keep on insisting on identifying the individual plants. After a while you begin to doubt whether any of your identifications are correct, so take everything here with a pinch of salt!
Apparently this population has been the subject of a number of academic studies that I have not read (!) and it illustrates the problem of trying to identify individual species within genera that contain species are clearly not yet stabilized or whatever the correct term is.
In this case the simplest thing to do is sit back and enjoy the plants and the spectacle. A sheer joy!!
A very belated post but the Banstead Botany Blog could not let spring go by without mention of the Bluebells in Banstead Woods. Bluebell woods are quintessentially British, the plant itself (Endymion non-scriptus) is native to a small part of maritime Europe but only in the
Banstead Woods is well known for its annual display and this year was particularly good. However this may not have continued to be so because until recently the display was under threat. The reason was Rhododendron ponticum that up until about 15 years ago was taking over the understorey of the Woods with about a quarter of the total area covered. However a concerted programme of annual “Rhododendron Bashing” organised by
A few years back someone suggested to me that the Bluebell display in this country owes its existence to the extinction of Wild Boar (that are partial to bluebells) in medieval times and that their reintroduction would lead to the disappearance of Bluebell woods. I don’t know if that is true, luckily as far as I am aware there are no wild boar around here!
Being me I had to include a close up of a flower, not just blue but also white! It seems to me that white variants suffer a distinct competitive disadvantage, they do not seem to clump up very often remaining as single spikes and certainly do not appear in the same place each year.
Not been out much locally recently but a trip (or perhaps as so many people do it, a pilgrimage!) to Dorset in the past few days gave the opportunity for a walk along the Purbeck cliffs to see Early Spider Orchid (Ophrys sphegodes) and thus start to catch up with the Greeks. This species is at the northern limit of its European distribution and is confined to the warm chalk and limestone of southern inland. Generally it is a plant of very short turf having very little capacity to compete with strong-growing grasses.
In
In recent years O.sphegodes has shown an amazing propensity to colonise suitable fresh habitat at Samphire Hoe, near
One thing is certain however that this species is one of the gems of the British flora especially flowering so early in the year.