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The presented checklist and red list include 231 liverwort (Marchantiophyta) and two hornwort species (Anthocerotophyta). Overall, 22.9% of liverworts are evaluated as threatened (CR – 4.3%, EN – 7.8%, VU – 10.8%), while 17 of species (7.4%) are categorized as NT, 11.6% as DD and 3.0% as RE. A total of 128 species (55.4% of the liverwort flora of Slovakia) were assessed as LC. For the liverwort Lunularia cruciata the criteria were not applicable (NA), since this species is not native to Slovakia. Currently, only two hornworts are known in Slovakia, of which Anthoceros agrestis is assessed as LC and Phaeoceros carolinianus as NT. The main factors of the liverwort and hornwort endangerment and retreat are anthropogenic changes in natural conditions and degradation of the ecosystems caused by agriculture, forestry, aquaculture, climatic changes, industry, and traffic pollution.

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