Increase and gaps in the knowledge about the biota of lichens and lichenicolous fungi in Turkey in the last 4 years are documented, including some supplements. Since the compilations by JOHN & TÜRK (2017) and JOHN et al. (2020) 32 species of lichens and 17 lichenicolous fungi were newly published for Turkey. A total of 689 additional species (59 lichenicolous and 636 lichenized) are new for one or more provinces. Lecanora albula, Placynthium flabellosum, Ramalina bourgaeana, R. elegans and R. tortuosa are specified here as new for Turkey and 134 species (2 lichenicolous and 132 lichenized) as new for provinces. 31 publications were evaluated. The knowledge has improved in 40 provinces.