Příspěvek k poznání flóry lišejníků CHKO Beskydy

The list of 174 lichens and 5 lichenicolous fungi recorded in the Beskydy Protected Landscape Area (Eastern Moravia, Czech Republic) is presented. Numerous small-scaled areas of old-growth forests occur in the study area, but current lichenofloristic data are nearly absent from this region. We have not confirmed most of the susceptible old-growth forest species that were reported by earlier authors during last century. Bacidina phacodes, Gyalecta flotowii, Multiclavula mucida, Parmelia submontana, Pertusaria hemisphaerica and Trapelia corticola represent the more valuable epiphytic lichens in primeval forests. Other rare, overlooked or poorly known lichens are dealt in more detail (e.g. Bilimbia microcarpa, Micarea byssacea, M. nigella, Porina guentheri, Thelocarpon olivaceum). Additional records from the Czech Republic are listed for Bilimbia microcarpa, Multiclavula mucida, Thelocarpon olivaceum and Trapelia corticola. The sorediate species Caloplaca turkuensis is reported as a new species for the Czech Republic. According to our observations the most interesting lichen flora is developed in old-growth forest stands, deep brook valleys, and on solitary trees or alleys. The peaks of mountains are generally characterized by poorly developed acidophilous lichen assemblages.