CONTENTS. vii 



EXERCISE PAGE 



XLIX. Parts of the Pericarp 108 



L. The Classification of Fruit 109 



LI. The Seed. Its Form and Structure . . . .114 



LII. Parts of the Seed 115 



LIII. Parts of the Body, or Kernel 117 



LIV. Parts of the Embryo 119 



LV. Monocotyledons and Dicotyledons . . . .121 



LVI. Position of the Embryo in Seeds . . . . . 122 



CHAPTER SEVENTH. FLORAL SYMMETRY, PHYLLO- 

 TAXY, PREFLORATION, CYMOSE INFLORESCENCE. 



LVI I. Numerical Plan of Flowers . . ' . . . .124 



LVIII. Alternation of Parts in Flowers 125 



LIX. Leaf- Arrangement. Phyllotaxis 126 



LX. Arrangement of Floral Leaves in the Bud. Estivation, 



or Prefloration 132 



LXI. Cymose or Definite Inflorescence 135 



CHAPTER EIGHTH. THE COMPOSITE. 



LXII. Parts of Flower-Heads 139 



LXI II. The Florets 142 



LXIV. Characters of the Composite 146 



CHAPTER NINTH. THE CRUCIFERE. 

 LXV. Characters of the Cruciferae 149 



CHAPTER TENTH. THE UMBELLIFERE. 



LXVI. Structure of the Flowers and Fruit . . . .151 

 LXVII. Classification of Umbel-bearing Plants . . . .154 



CHAPTER ELEVENTH. THE LABIATE. 

 LXVII I. Characters of the Labiatse 157 



CHAPTER TWELFTH.-THE CONIFERE. 

 LXIX. Characters of the Conifers ..... 161 



