The old-growth beech forest with fragments of scree forests in the protected area Kohoutov (28.8 ha) is among to the most valuable woodlands in the central part of Bohemia. The locality is dominated by beech; maple trees, limes, oaks and several other trees are intermixed. According to historical sources, Kohoutov is characterized by a long-lasting absence of forest management. However, the forest’s continuity was strongly influenced by the production of charcoal in the past. Despite relatively dry climate conditions and substrate acidification during the second half of the 20th century, it harbours numerous, mainly crustose epiphytic and epixylic lichens. Local diversity hot-spots are situated in scree and well-lit forests, especially in the upper part of the reserve. A total of 153 lichens and six non-lichenized fungi were recorded. A major part of lichens was recorded on trees (104), especially on maples (62), beeches (53) and oaks (42). Lignicolous lichen communities with 55 recorded species were species-rich as well. Saxicolous species were represented by 38 taxa. The great importance of the locality for nature protection is underlined by the presence of numerous calicioid lichens and fungi. Arthonia ruana, Bacidia circumspecta, B. rosella, B. vermifera, Bacidina phacodes, Calicium adspersum, Catinaria atropurpurea, Fuscidea recensa, Gyalecta flotowii, Multiclavula mucida and Pertusaria flavida represent the most remarkable species.
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