f 495 ACKNOWLEDGMENT The authors owe a special debt of gratitude to Dr. Nicholas T. Mirov, who began this project before his retirement from the U.S. Forest Service in 1961. His many specific contributions, particularly to the information about the eastern and southeastern Asian species, are acknowledged in the text. Dr. Robert Z. Callaham has been helpful and encouraging throughout the preparation of this publication. Many persons have provided valuable information about pine distribution, and their contributions are acknowledged in the text under the appropriate species. For their work in compiling and drafting the maps, the authors are greatly indebted to Audrey E. Kursinski and Barry K. Ford. |