If you want to read Müller on Muller, one place to begin is Müller’s “Gregg Müller on Muller on Lichenometry.” It begins:
FEW PEOPLE WOULD connect the splashes of color of lichen crusts on rock with unraveling the history of landscapes, yet the meek but intriguing lichen can help researchers tell the stories of places…
But if you want Lichens on Lyme, go for the 19/10/2008 Background Briefing from Radio National (National Australia), according to which:
Gene Lichens, ecologist, US, says scientists at his institute have proved the connection between loss of biodiversity and the increase of the transmission of Lyme disease.