Red List of Liverworts and Hornworts of Sicily

This study provides an updated conservation status of all liverworts and hornworts in Sicily, evaluated according to the IUCN Guidelines for Application of IUCN Red List Criteria at the Regional Level. Of the assessed taxa, 40 taxa (31.74%) are assigned to a risk category and, specifically, 18 (14.29%) are classified as Critically Endangered (CR), 13 (10.32%) as Endangered (EN), and 9 (7.14%) as Vulnerable (VU). In addition, 13 taxa (10.32%) are classified as Near Threatened, and 20 (15.87%) as Data Deficient; however, many of these are likely to qualify for inclusion in one of the IUCN Red List threat categories following further field surveys and data acquisition. The remaining 52 taxa (41.27%) are classified as Least Concern (LC).