Firstly I must give credit to all the mycologists who have made this book possible. Dr Derek Reid looked at a very great number of my specimens and verified the identifications; Ronnie Rayner oversaw the earlier work on Russula and Lactarius. For the new volume I have had an enormous input from Geoffrey Kibby, and I am greatly indebted to Alick Henrici for for his detailed work on the current taxonomy of the Basidiomycetes and Dr Brian Spooner of Kew for his work determining and updating the Ascomycetes.
