This is the first book to cover England's rare and threatened mosses and liverworts, collectively known as bryophytes. As a group, they are the most ancient land plants and occupy a unique position in the colonization of the Earth by plant life. However, many are at risk from habitat loss, pollution, climate change, and other factors. Britain is on

Ron D. Porley is a botanist who has been studying mosses and liverworts for more than twenty-five years. He is the author of Arable Bryophytes: A Field Guide to the Mosses, Liverworts, and Hornworts of Cultivated Land in Britain and Ireland (WILDGuides), and the coauthor of Mosses and Liverworts (HarperCollins). He is a member of the British Bryological Society and is on the board of the European Committee for the Conservation of Bryophytes. He has traveled extensively in Europe, Africa, and Asia, collecting and photographing bryophytes.