Handbook of the Trees of New England

Part 1

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HANDBOOK OF THE TREES OF NEW ENGLAND

WITH RANGES THROUGHOUT THE UNITED STATES AND CANADA

BY LORIN L. DAME, S.D. AND HENRY BROOKS

PLATES FROM ORIGINAL DRAWINGS BY ELIZABETH GLEASON BIGELOW

BOSTON, U.S.A. GINN & COMPANY, PUBLISHERS The Athenaeum Press 1904

COPYRIGHT, 1901, BY LORIN L. DAME AND HENRY BROOKS

ALL RIGHTS RESERVED

PREFACE.

There is no lack of good manuals of botany in this country. There still seems place for an adequately illustrated book of convenient size for field use. The larger manuals, moreover, cover extensive regions and sometimes fail by reason of their universality to give a definite idea of plants as they grow within more limited areas. New England marks a meeting place of the Canadian and Alleghanian floras. Many southern plants, long after they have abandoned more elevated situations northward, continue to advance up the valleys of the Connecticut and Merrimac rivers, in which they ultimately disappear entirely or else reappear in the valley of the St. Lawrence; while many northern plants pushing southward maintain a more or less precarious existence upon the mountain summits or in the cold swamps of New England, and sometimes follow along the mountain ridges to the middle or southern states. In addition to these two floras, some southwestern and western species have invaded Vermont along the Champlain valley, and thrown out pickets still farther eastward.

At or near the limit of a species, the size and habit of plants undergo great change; in the case of trees, to which this book is restricted, often very noticeable. There is no fixed, absolute dividing line between trees and shrubs. In accordance with the usual definition, a tree must have a single trunk, unbranched at or near the base, and must be at least fifteen feet in height.

Trees that are native in New England, or native in other sections of the United States and thoroughly established in New England, are described and, for the most part, figured. Foreign trees, though locally established, are not figured. Trees may be occasionally spontaneous over a large area without really forming a constituent part of the flora. Even the apple and pear, when originating spontaneously and growing without cultivation, quickly become degenerate and show little tendency to possess themselves of the soil at the expense of the native growths. Gleditsia, for example, while clearly locally established, has with some hesitation been accorded pictorial representation.

The geographical distribution is treated under three heads: Canada and Alaska; New England; south of New England and westward. With regard to the distribution outside of New England, the standard authorities have been followed. An effort extending through several years has been made to give the distribution as definitely as possible in each of the New England states, and while previous publications have been freely consulted, the present work rests mainly upon the observations of living botanists.

All descriptions are based upon the habit of trees as they appear in New England, unless special mention is made to the contrary. The descriptions are designed to apply to trees as they grow in open land, with full space for the development of their characteristics under favorable conditions. In forest trees there is much greater uniformity; the trunks are more slender, taller, often unbranched to a considerable height, and the heads are much smaller.

When the trunk tapers uniformly from the ground upward, the given diameter is taken at the base; when the trunk is reinforced at the base, the measurements are made above the swell of the roots; when reinforced at the ground and also at the branching point, as often in the American elm, the measurements are made at the smallest place between the swell of the roots and of the branches.

A regular order has been followed in the description for the purpose of ready comparison. No explanation of the headings used seems necessary, except to state that the habitat is used in the more customary present acceptation to indicate the place where a plant naturally grows, as in swamps or upon dry hillsides. Under the head of "Horticultural Value," the requisite information is given for an intelligent choice of trees for ornamental purposes.

The order and names of families follow, in the main, Engler and Prantl. In accordance with the general tendency of New England botanists to conform to the best usage until an authoritative agreement has been reached with regard to nomenclature by an international congress, the Berlin rule has been followed for genera, and priority under the genus for species. Other names in use at the present day are given as synonyms and included in the index.

Only those common names are given which are actually used in some part of New England, whether or not the same name is applied to different trees. It seems best to record what is, and not what ought to be. Common names that are the creation of botanists have been disregarded altogether. Any attempt to displace a name in wide use, even by one that is more appropriate, is futile, if not mischievous.

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

Part 2

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

A C Ovate to oval, obscurely toothed Tupelo A C Ovate to oval Persimmon A C Also 3-lobed Sassafras A C Sometimes opposite, clustered at the ends of the branchlets Dogwoods A D Tremulous habit, oval Poplars A D Lanceolate, finely serrate, sometimes entire Willows A D Ovate-oval, serrate, doubly serrate { Birches { Hornbeams A D Oval, serrate, oblong-lanceolate, veins { Beeches terminating in teeth { Chestnut A D Ovate-oblong, doubly serrate, surface rough Elms A D Ovate to ovate-lanceolate, serrate, surface slightly rough Hackberry A D Outline variable, ovate-oval, sometimes lobed (3-7), serrate-dentate Mulberry A D Ovate, serrate, oblong { Shadbush { Plums { Cherries A D Oval or oval-oblong, spines, evergreen Holly A D Broad-ovate, one-sided, serrate Linden A D Obovate, oval, lanceolate, oblong Chestnut oaks A D Broad-ovate to broad-elliptical, thorny Thorns A E F Lobes rounded Sassafras A E F Base truncate or heart-shaped Tulip tree A E F Obtuse, rounded lobes White oaks A E F 3-5-lobed, white-tomentose to glabrous beneath White poplar A E G 5-lobed, finely serrate Sweet gum A E G Irregularly 3-7-lobed, serrate-dentate with equal teeth Mulberry A E H Pointed or bristle-tipped lobes Black oaks A E H Coarse-toothed or pinnate-lobed, short lobes ending in sharp point Sycamore B Outline entire, ovate, veins prominent Flowering dogwood B Outline serrate, apex often tapering Sheep berry B Outline lobed Maples

II. LEAVES COMPOUND.

=Leaves pinnately compound= I Leaflets alternate I A Outlines of leaflets entire I A C Leaflets opposite I B =Leaves bi-pinnately compound= J

I A Outlines of leaflets with two or three teeth at base. Ailanthus IA Outlines of leaflets serrate { Sumacs (except Poison sumac) { Mountain ashes { Walnuts { Hickories I A C Leaflets oval, apex obtuse Locusts (except Honey locust) I A C Leaflets oblong, apex acute Poison sumac I B Outlines of leaflets entire Ashes (except Mountain ashes) I B Outlines of leaflets serrate Ashes (except Mountain ashes) I B Leaflets irregularly or coarsely toothed, 3-lobed or nearly entire Box elder J Irregularly bi-pinnate, outlines of leaflets entire, thorns on stem and trunk Honey locust

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