The paper contains a list of 39 liverwort species collected on decaying wood (logs, stumps and snags) and on tree-fall disturbances (root plates, pits and mounds) in forest communities in the Karkonosze. Three of these species are threatened in Poland: Cephalozia catenulata, C. leucantha, Marsupella emarginata and three are partially protected by law: Cephalozia catenulata, Bazzania trilobata i Ptilidium ciliare. The most frequent species in the study area are: Calypogeia integristipula, C. azurea, Cephalozia bicuspidata, Lepidozia reptans, Lophocolea heterophylla, Lophozia ventricosa.