Showing posts with label sulphur dioxide. Show all posts
Showing posts with label sulphur dioxide. Show all posts

Saturday, 23 March 2013

More on the Exciting New Lichens in Sussex


Teloschistes chrysophthalmus - the Tangerine
Mark Jackson who lives in Southampton should be crowned the Teloschistes chrysophthalmus King. Recently, I received an e-mail from him saying that he had found eight bushes with Teloschistes to the north east of Brighton, and another two not too far from where he originally found it. Inspired by this news, I went over to have a look at areas between Birling Gap and Beachy Head where there were masses of thorn bushes in open country that seemed ideal. I was utterly convinced I would be successful, but in the event, I failed to find any. Having never ever actually seen Teloschistes chrysophthalmus without being shown it, I resolved to go and have a look at one of Mark’s sites for which I had very accurate grid references. In spite of this, it took me some time to find his two bushes with it on.

Friday, 22 February 2013

Exciting New Lichens in Sussex – our Sequal

The Teloschistes chrysophthalmus habitat in Sussex weald
The morning was one of the brightest spring days of the year so far. Since January 3rd, my wife Amanda has been taking a photograph of exactly the same view of a field near where we live. Since being shown Teloschistes chrysophthalmus just north of Brighton, we have been keeping our eyes open for it. This morning, having taken her photograph, Amanda was struck by the assemblage of lichens, including the golden Xanthoria species that seem to be associated with Teloschistes chrysophthalmus  growing on a blackthorn bush nearby. She went over to give the bush a casual look.

After perhaps half a minute, the air went blue.

“Sod it!” She cried.

“What’s the matter.” I replied, furrowing my brow in concern.

“Come and see!” she said.

“I’m not sure I want to see something that’s not too pleasant,” I added.

The twig with Teloschistes chrysophthalmus
“You’ll like this,” she replied enthusiastically. I walked over to where she was standing, and she pointed to a very small, very fertile orange coloured lichen. Indeed, the fruits seemed to be raised on definite branches, and I could see what I thought were eye-lash like cilia surrounding the fruit. It looked very promising. Amanda dashed inside to get my hand lens and camera. Moments later, I was able to confirm our suspicions with my hand lens.

The new Teloschistes chrysophthalmus


The lichen was very small, but I was in no doubt whatsoever that this was indeed the beautiful Golden-eyed Lichen Teloschistes chrysophthalmus and the second record of it for East Sussex and one of the mounting number of sightings in southern England since October last year.

Saturday, 5 January 2013

Exciting New Lichens in Sussex


Sussex Teloschistes chrysophthalmus
On Boxing Day 2012, I enjoyed some most exciting natural history. On 23rd of December, I received an e-mail informing me that the lichen Teloschistes chrysophthalmus had been found on two hawthorn bushes to the north of Brighton. The finder, Mark Jackson had recently just got interested in lichens, and asked me about the status of Teloschistes chrysophthalmus in East Sussex. The answer is simple, it is the first recent record for Sussex, there being three early 19th Century records from Shoreham, near Brighton and also near Lewes. On 23rd of December my knowledge of the current history of Teloschistes chrysophthalmus was as follows:

·    In 1994, it had been discovered at Slapton Ley, but the bush on which it grew was cleared as part of conservation scrub clearance.
·    Next, it was found on a hawthorn bush on the shores of the Drift Reservoir in Cornwall, but when the water level rose and submerged the bush, its only known modern site was once again lost.
·    More recently it was found on a branch fallen from an apple tree in Herefordshire.

Not a very promising situation for its continued survival, but shortly after that, it was found in County Cork and as far as I know, that site is still extant. It also occurs on Guernsey on two bushes where I saw it recently. In Jersey however, it was last seen in an orchard back in 1966. A recent trip to the site confirmed that all the apple trees had gone.

On Boxing Day I met up with Mark Jackson and he showed me the two bushes each with just one Teloschistes chrysophthalmus. We had a good look round at other trees, but found no more. However, on our way back to the car, Mark found a minute, pink lichenicolous fungus growing on a twig. I photographed it, and sent off the photograph to the experts. It is Illosporiopsis christiansenii and new to Sussex. Mark is lucky in having an excellent eye for lichens, as well as a great enthusiasm for them.