Aproot and van Herk (2007) found that, in Western Europe, lichens most rapidly increasing in forests, although taxonomically unrelated, all contain Trentepohlia as phycobiont
in addition to having a more southerly distribution, perhaps suggesting that the mycobionts are adapted to using this photobiont and they follow the photobiont which is migrating in response to global warming.
Lichens are complex plants, living in symbiotic relationships with fungi and algae, and the pertinent partners are defined as mycobiont and phycobiont
Synchronic production of fungal lectin, phycobiont
lectin receptor and algal division in Evernia prunastri.
Most of the sandstone surface in this site is covered by epilithic lichens, with a dominance of those with Chlorophyceae as phycobiont
; cyanophilous lichens grow as well.