EN
In the Czech republic, the rare polypore Amylocystis lapponica (romell) Singer continuously occurs in the Boubínský prales virgin forest (southern Bohemia: šumava mts) where it has been documented for more than 60 years. Similarly, in Poland it has been known only from the Puszcza Białowieska virgin forest (northeastern Poland) for more than 50 years. Generally, it is considered a species of boreal coniferous forests of northern europe (taiga) and montane coniferous forests in central and Southern europe. However, the data from the Czech republic, Slovakia and western ukraine show that it also grows in mixed montane forests composed mainly of Fagus sylvatica, Picea abiesand Abies alba. In Poland, the locality is situated in a lowland forest consisting mostly of Carpinus betulus, Quercus roburand Tilia cordata. In central europe, A. lapponicaoccurs only in virgin forest refuges with the following habitat conditions: vegetation continuity (never cut), natural tree species composition, multiaged structure, rich presence of dead wood in various stages of decay, relatively large area of the virgin forest surrounded by near-natural forests, stable, cold and humid meso- and microclimate. consequently, A. lapponica may be considered an indicator of long-term vegetation continuity and stable habitat conditions.