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Dear lichen enthusiasts, The next BLS AGM weekend will be held in London at the Natural History Museum from 10th-12th January 2025.
There will be a Friday evening lecture, the AGM itself on Saturday morning, talks on Saturday afternoon and a field trip to Kensington Gardens & the Albert Memorial on the Sunday. There will also be displays in the lecture hall foyer – including photos from our phot competition which you are free to enter.
The events are open to BLS members and to members of the general public and are free to attend. But
they must be booked. The booking deadline is the 14th December. Full details of the events and photo competition are available on the BLS website at
https://britishlichensociety.org.uk/the-society/events/bls-annual-general-meeting-natural-history-museum-london We look forward to seeing you there.
BLS President
At the link that Fay has provided, I notice that a document has been provided. This is a report of my findings from when I looked at lichens in Hyde Park in 2018. The post-AGM meeting aims to visit Hyde Park and the adjacent Kensington Gardens on Sunday 12th January 2025, so you can get an idea of some of the things you might see in advance. This extract from my report describes one of the surprisingly interesting habitats in Hyde Park.
[attachment=2]Screenshot 2024-11-21 12.49.22 PM.png[/attachment] At the time I wrote the report, I was struggling to identify this sterile sorediate crust (images below) present in the rain tracks on old plane trees.
[attachment=1]Deo5HzrWAAANZ5E.jpeg[/attachment] 
[attachment=0]Deo5MGyX4AAjo1J.jpeg[/attachment] I had misinterpreted the photobiont cells as being
Chlorella-type and I hadn’t taken enough notice of the tiny papillae on the hyphae forming the outer layer of the soredia. I would now record such material as Psoroglaena stigonemoides(the sorediate form which seems to be the prevalent form in the East and much of the Midlands). The photobiont cells are actually very similar to those in Verrucariaspecies (to which Psoroglaenais related). I have never found any fertile occurrences of this sorediate form but for the moment, rightly or wrongly, I record it as P. stigonemoides(sorediate form). This is common and widespread but easily overlooked even when it is quite extensive.
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