First published by Cambridge University Press in 1991, this book introduces fungi to readers from an ecological viewpoint, emphasising the ecological diversity and extreme versatility of the fungi. The introductory chapter covers fungal structure, growth and reproduction. The remaining chapters consider the fungi in their ecological roles, for example as decomposers of leaves, inhabitants of aquatic environments and as mutualistic symbionts in mycorrhiza and with insects. The intention is to treat fungi in terms of their adaptations to the ecosystems that they occupy. Although fungi as soil inhabitants are not included, much of their ecological significance is considered elsewhere, for example in the chapters on fungi as decomposers of leaves and wood. Examples given are worldwide, including from tropical countries, and the book is well illustrated with many original illustrations drawn from living material.