Keys for the identification of bryophytes occurring in Hungary

Keys for the identification of all bryophytes presently known to occur in Hungary are presented. The three groups: Hornworts (2 taxa), Liverworts (149 taxa), and Mosses (541 taxa) are treated separately. Bryophyte identification using these keys proceeds in two steps: 1. Artificial keys to the genera, 2. Keys from genera to species, arranged systematically according to recent taxonomy. Each species of the Hungarian bryophyte flora is assigned to one of six frequency classes (very common: cc, common: c, widespread: w, rare: r, very rare: rr, not seen: n.s.). A glossary explaining the technical terms used in the keys and an index of genera are included