The plates are from original drawings by Mrs. Elizabeth Gleason Bigelow, in all cases from living specimens, and they have been carefully compared with the plates in other works. So far as practicable, the drawings were made of life size, with the exception of the dissected portions of small flowers, which were enlarged. In this way, though not on a perfectly uniform scale, they are, when reduced to the necessary space, distinct in all their parts. So far as consistent with due precision, popular terms have been used in description, but not when such usage involved tedious periphrase. Especial mention should be made of those botanists whose assistance has been essential to a knowledge of the distribution of species in the New England states: Maine,--Mr. M. L. Fernald; New Hampshire,--Mr. Wm. F. Flint, Report of Forestry Commission; Vermont,--President Ezra Brainerd; Massachusetts,--trees about Northampton, Mrs. Emily Hitchcock Terry; throughout the Connecticut river valley, Mr. E. L. Morris; Rhode Island,--Professor W. W. Bailey, Professor J. F. Collins; Connecticut,--Mr. C. H. Bissell, Mr. C. K. Averill, Mr. J. N. Bishop. Dr. B. L. Robinson has given advice in general treatment and in matters of nomenclature; Dr. C. W. Swan and Mr. Charles H. Morss have made a critical examination of the manuscript; Mr. Warren H. Manning has contributed the "Horticultural Values" throughout the work; and Miss M. S. E. James has prepared the index. To these and to all others who have given assistance in the preparation of this work, the grateful thanks of the authors are due. CONTENTS. PAGES KEY TO THE TREES OF NEW ENGLAND ix LIST OF PLATES xi AUTHORITIES xiii ABBREVIATIONS xvii TEXT AND PLATES 1 APPENDIX 171 GLOSSARY 173 INDEX 179 KEY TO THE TREES OF NEW ENGLAND. I. LEAVES SIMPLE. =Leaves alternate= A Outline entire A C Outline slightly indented A D Outline lobed A E Lobes entire A E F Lobes slightly indented A E G Lobes coarsely toothed A E H =Leaves opposite= B