Yavuz, Y., Özdemir Türk, A. & Böcük, H. 2015. Epiphytic lichen diversity of the Sündiken Mountains (Eskişehir, Turkey). — Herzogia 28: 753 –761.
Ninety-three lichen taxa belonging to 43 genera are recorded from the Sündiken Mountains, Eskişehir (Turkey), of which 34 are reported for the first time from this area. Calicium parvum and C. trabinellum are new records for Turkey. The lichen diversity in three forests in different phytogeographical regions in the study area is discussed.