Providing an update of the classic "Student's Handbook" by S.M. Macvicar (1926), this illustrated account of the 300 liverwort and hornwort species on the British and Irish lists is a synthesis of nearly 40 years' study. The detailed descriptions and figures, all prepared by the author, are designed to enable students of these groups to determine the morphologically variable specimens that cause so much difficulty in identification. The book is intended for both the amateur and professional bryologist, whether beginner or experienced, and contains an introduction to the Hepaticae and Anthocerotae, with information on their morphology, ecology and distribution. It also provides advice on collection and examination. The extensive illustrated systematic section contains dichotomous keys to orders, genera and species.