Contents

Preface

vii

LeafstalkLeaf teeth

Introduction

ix

Leaf venation

GETTING STARTED

ix

Practice observing

Compound vs. simple leavesLeaf arrangement

Recognize patterns

Parts of a lobed palmate leaf

Use multiple field marks

Pay attention to habitat

Parts of a lobed pinnate leaf

Get to know your local trees

Compound palmate leaves

Meet other tree fans

Lobed pinnate leavesLobed palmate leaves

WHAT IS A TREE?

X

Definition of a tree

Compound pinnate leaves

Cultivated species

Compound bipinnate leavesOther leaf arangement

TAXONOMY

xi

Foliage textureLeaf color

Value of taxonomy

Taxonomic hierarchy

Underleaf

Higher groups of trees

Fall leaf color

Subgenera

FLOWERS

xxxi

Species

Flower structure

Hybridization

Subdivisions of species

Flower clusters

Names of trees

Male and female flowersPhenology

Common names

FRUIT

xxxiii

SIZE

xiv

Size and measurements

Gymnosperm Cones

Tree records

Angiosperm Fruit

TWIGS

XXXV

MAPS

XV

Zones

BUDS

xxxvi

Native or introduced?

BARK

xxxvii

HABITAT

xvii

TREE CONSERVATION

xvii

The Sibley Guide to Trees

1

TREE IDENTIFICATION

xviii

YEW FAMILY

2

Terminology

PINE FAMILY

4

Variation

White pine group

6

Growth form

Foxtail pine group

10

Rate of growth

Pinyon group

12

Longevity

Yellow pine group

16

LEAVES

XX

True cedars

37

Evergreen or deciduous

Larches

38

Broadleaf vs. needle-leaf

Hemlocks

41

Leaf size

Spruces

44

Leafshape

Douglas-firs

50

Variation in leaf shape

True firs

52

/'/

The Sibley Guide to Trees

CYPRESS FAMILY

Cypresses

Junipers

Other cypresses

Redwood

Giant SequoiaEXOTIC GYMNOSPERMSGINKGOPALM FAMILYJOSHUA TREESAGUAROLAUREL FAMILYCUSTARD-APPLE FAMILYMAGNOLIA FAMILYKATSURA FAMILYSYCAMORE FAMILYWITCH-HAZEL FAMILYSWEETGUM FAMILYTAMARISK FAMILYMYRTLE FAMILYLOOSESTRIFE FAMILYLEGUME FAMILYBAYBERRY FAMILYWALNUT FAMILY

Hickories

BIRCH FAMILY

Birches

Alders

Hophornbeams

Hornbeams

Hazels

BEECH FAMILY

Beeches

Chestnuts

Oaks

SPURGE FAMILY

WILLOW FAMILY

PoplarsWillows

OLEASTER FAMILYMULBERRY FAMILYBUCKTHORN FAMILY

60

ROSE FAMILY

253

61

Plums and cherries

254

64

Hawthorns

274

69

Apples

280

76

Pears

284

77

Serviceberries

286

78

Mountain-ashes

289

80

Other roses

292

82

HEMP FAMILY

296

86

Hackberrries

296

86

ELM FAMILY

300

87

MALLOW FAMILY

309

91

CASHEW FAMILY

312

92

Sumacs

316

101

MAHOGANY FAMILY

318

102

RUE FAMILY

319

105

SOAPBERRY FAMILY

324

105

Buckeyes

326

108

Maples

332

104

QUASSIA FAMILY

352

111

DOGWOOD FAMILY

354

112

TUPELO FAMILY

359

134

CYRILLA FAMILY

362

136

SAPODILLA FAMILY

363

142

EBONY FAMILY

364

150

HEATH FAMILY

366

150

SNOWBELL FAMILY

370

159

TEA FAMILY

372

166

FOUR FAMILIES

373

168

OLIVE FAMILY

375

170

Ashes

376

172

TRUMPET CREEPER FAMILY

389

172

PAULOWNIA FAMILY

392

174

ARALIA FAMILY

393

180

HOLLY FAMILY

394

227

MUSKROOT FAMILY

397

228

228238244

AcknowledgmentsSpecies (Checklist

J98

400

245

Species Index

416

250