"The two volumes of this atlas are intended to replace the Atlas of the Bryophytes of Britain and Ireland (Hill et al., 1991-1994)"--Volume 1, page 1.
Atlas of British & Irish bryophytes : the distribution and habitat of mosses and liverworts in Britain and Ireland. ISBN 9781874357629. Published by Pisces Publications on behalf of the British Bryological Society in 2014. Publication and catalogue information, links to buy online and reader comments.