119
Drupe and Akene 120
Cremocarp, Caryopsis, Nut 121
Follicle, Legume, Capsule 122
Capsular Dehiscence, Silique and Silicle 123
Pyxis, Strobile or Cone 124

SECTION XV. THE SEED 125

Seed-coats and their appendages 125
The Kernel or Nucleus, Embryo and its parts, Albumen 127

SECTION XVI. VEGETABLE LIFE AND WORK 128

Sec. 1. ANATOMICAL STRUCTURE AND GROWTH 129

Nature of Growth, Protoplasm 129
Cells and Cell-walls. Cellular Structure or Tissue 130
Strengthening Cells. Wood, Wood-cells, Vessels or Ducts 132

Sec. 2. CELL-CONTENTS 136

Sap, Chlorophyll, Starch 136
Crystals, Rhaphides 137

Sec. 3. ANATOMY OF ROOTS AND STEMS 138

Endogenous and Exogenous Stems 139
Particular structure of the latter 140
Wood, Sapwood and Heart-wood. The living parts of a Tree 141

Sec. 4. ANATOMY OF LEAVES 142

Epidermis, Stomata or Breathing pores 143

Sec. 5. PLANT FOOD AND ASSIMILATION 144

Sec. 6. PLANT WORK AND MOVEMENT 149

Movements in Cells or Cyclosis 149
Transference from Cell to Cell 150
Movements of Organs, Twining Stems, Leaf-movements 150
Movements of Tendrils, Sensitiveness 152
Movements in Flowers 153
Movements for capture of Insects 154
Work costs, using up Material and Energy 155

SECTION XVII. CRYPTOGAMOUS OR FLOWERLESS PLANTS 156

Vascular Cryptogams, Pteridophytes 156
Horsetails (Equisetaceae), Fern