The Falkland Islands are rich in lichens, favoured by the clean air and unspoilt landscapes. Lichens have a subtle but powerful influence on the appearance of the land, from the soft greys of the stone runs to the vivid orange of rocks near penguin colonies. Over 400 species have been reported, and this full-colour guide describes and illustrates 94 of the most easily recognised, including both common and widespread species and some rarities. An introductory section explains the nature and structure of lichens. This book should appeal to all who appreciate the natural world of these beautiful islands.