Abstract
This contribution presents the results of a lichenofloristic survey of the Trubínskývrch hill near the town of Beroun in Central Bohemia, which was undertaken in 2013-2015. This locality is interesting due to its xerothermic diabasic outcrops on the south-facing rocky slopes of the hill.
The lichen biota consists of 124 lichen species, including 105 saxicolous species. The concentration of endangered species is remarkably high.
The locality is especially rich in the diversity of cyanolichens (Anema decipiens, A. tumidulum, Lemmopsis arnoldiana, Lichinella nigritella, L. stipatula, Peccania cernohorskyi, Peltula euploca, Thyrea confusa). Acarospora irregularis, Aspicilia dominiana, Lecanora argopholis and Toninia diffracta represent lichen species known mostly from diabasic rocks in the Czech Republic.
Other rare and endangered species are Caloplaca conversa, Lecanora pannonica, L. pseudistera, Lepraria nylanderiana, Phaeophyscia constipata and Rhizocarpon umbilicatum. The lichenicolous fungus Arthonia punctella is reported here for the first time from the Czech Republic