Friday 20 November, 7pm-8pm
Great North Museum: Hancock
Those who study lichens often wonder about the lichen flora of Britain before the industrial revolution; was it very different to now? Some timbers in old houses still have bark on, and on this the lichens that grew on the trees before they were felled are remarkably well preserved. Lichens are sensitive indicators of environmental conditions, so the new science of Archaeolichenology uses this evidence to reconstruct past environments, with some surprising results.
Rebecca is a researcher at the Royal Botanic Garden Edinburgh studying lichen diversity and evolution. She is also a member of the Editorial Board for The Lichenologist and The Edinburgh Journal of Botany