CONTENTS 



PAGE 



PREFACE vii 



INTRODUCTION i 



CHAP. 



I. THE DIVISIONS OF THE IRIS GENUS 5 



II. THE STRUCTURE OF THE IRIS FLOWER ... 7 



III. BULBOUS IRISES 9 



IV. BULBOUS IRISES (continued) 15 



V. BULBOUS IRISES (continued) 17 



VI. THE ONCOCYCLUS IRISES 23 



VII. THE EVANSIA SECTION 30 



VIII. "GERMAN" IRISES 34 



IX. OTHER BEARDED IRISES .... -45 



X. THE APOGON IRISES 48 



XI. IRISES FOR THE ROCK GARDEN . . . .68 

 XII. IRISES FOR THE ROCK GARDEN (continued) . . 72 



XIII. IRISES FOR THE HERBACEOUS BORDER . . .81 



XIV. THE CULTIVATION AND PROPAGATION OF IRISES . 89 

 XV. IRISES THAT SELDOM FLOWER 92 



XVI. SOME IRIS PROBLEMS . -95 



XVII. THE ILLUSTRATIONS . . 101 



XVIII. AN IRIS CALENDAR . . .103 



INDEX OF SPECIES AND VARIETIES OF IRIS . . 107 

 GENERAL INDEX no 



