[in Russian with English avbstract: ] The lichenological survey in 2024 of quarters 14 and 15 of the suburban part of the Serebryanoborskoye Experimental Forestry of the Institute of Forest Science of the Russian Academy of Sciences revealed 57 lichen species, 2 species of closely related saprotrophic fungi and 2 species of lichenicolous fungi. Among them 12 species are new to the territory of the Experimental Forestry, including Arthonia vinosa, which is listed for the first time for the Moscow Region. A new location of Ramalina farinacea, a species protected in the Moscow Region, and several indicator species of biologically valuable forest communities were identified. The total list of lichen biota of the Serebryanoborskoye Experimental Forestry includes 127 species, 48% of which are found in quarters 14 and 15. This area was removed from the State Nature Reserve «Forests of the Serebryanoborskoye Experimental Forestry» in 2021, which threatens the stability of the surveyed forests and the preservation of the habitat of the protected species and several indicator species of biologically valuable forest communities. Keywords: lichens, indicator species, rare species, Red Data Book, Moscow, Moscow Region, Center of European Russia.