CONTENTS   

VOLUME I.   HISTORY, WORLD DISTRIBUTION, BOTANY, AND VARIETIES

DEDICATION
PREFACE

CHAPTER 1. History and Development of the Citrus Industry
       Herbert John Webber, Walter Reuther, and Harry W. Lawton
[Introduction]
Origin of Cirus
Citrus in Ancient and Medieval History
Introduction of Citrus into Other Countries
Introduction of Citrus into the United States
Origins of Citrus Research and Technology
Recent Developments
Literature Cited

CHAPTER 3. The Botany of Citrus and Its Wild Relatives
       Walter T. Swingle and Philip C. Reece
[Introduction]
Principal Taxonomic Works on Citrus and Related Genera Published Since 1860
Position of the Orange Subfamily, Aurantiodeae, in the Plant Family Rutaceae
The Orange Subfamily, Aurantiodeae
    Tribes, Subtribes, and Genera of the Subfamily Aurantioideae
Tribe 1. Clauseneae: Very Remote and Remote Citroid Fruit Trees
    Subtribe 1. Micromelinae: Very Remote Citroid Fruit Trees
       Micromelum
    Subtribe 2. Clauseninae: Remote Citroid Fruit Trees
       Glycosmis
       Clausena
       Murraya
    Subtribe 3. Merrilliinae: Large-Fruited Remote Citroid Fruit Trees
       Merrillia
Tribe 2. Citreae: Citrus and Citroid Fruit Trees
    Subtribe 1. Triphasiinae: Minor Citroid Fruit Trees
       Wenzelia
       Monanthocitrus
       Oxanthera
       Merope
       Triphasia
       Pamburus
       Luvunga
       Paramignya
    Subtribe 2. Citrinae: Citrus Fruit Trees
       Severinia
       Pleiospermium
       Burkillanthus
       Limnocitrus
       Hesperethusa
       Citropsis
       Atalantia
       Fortunella
       Eremocitrus
       Poncirus
       Clymenia
       Microcitrus
       Citrus
    Subtribe 3. Balsamocitrinae: Hard-Shelled Citroid Fruit Trees
       Swinglea
       Aegle
       Afraegle
       Aeglopsis
       Balsamocitrus
       Feronia
       Feroniella
Retrospect and Prospect
Acknowledgments
Literature Cited

CHAPTER 4. Horticultural Varieties of Citrus
       Robert Willard Hodgson
Horticultural Classification
The Nature and Constancy of Characters in Citrus
    Fruit and Tree Characters
    Constancy of Characters
Varietal Definitions and Modes of Origin
The Principal Varieties and Their Most Distinctive Characteristics
The Sweet Orange
    Common Oranges
    Sugar or Acidless Oranges
    Pigmented Oranges
    Navel Oranges
Fruits Resembling the Sweet Orange
Sour or Bitter Oranges
    Common Bitter or Sour Orange
    Bittersweet Orange
    Variant Bitter Oranges
    Myrtle-leaf Orange
The Mandarins
    Natural Groups
    Satsuma Mandarin
    Fruits Resembling the Satsuma
    King Mandarin
    Mediterranean Mandarin
    Common Mandarins
    Small-fruited Mandarins
    Fruits Most Resembling the Mandarins
Pummelos and Grapefruits
    Pummelo
    Grapefruit
    Fruits Most Resembling the Grapefruit or Pummelo
Common Acid Members—Citron, Lemon, and Lime
    Citron
    Lemon
    Limes
The Kumquats
    Kumquat Varieties
    Kumquat Hybrids
The Trifoliate Orange
    Rootstock Trifoliate Selections
    Ornamental Trifoliate Varieties
    Trifoliate Hybrids
Acknowledgements
Literature Cited