CONTENTS 



CHAPTER I 



Protoplasm and Plant Cells (Cytology) 



Page 

 Protoplasm. The Plant Cell. Coenocytes. Plastids. Cell 

 Inclusions. Cell Sap. Formation of New Cells. 

 Mitosis (Karyokinesis) 1 



CHAPTER II 



The Tissues of Plants (Histology) 



Aggregations of Cells. Differentiation of Cells. Meristem. 

 Parenchyma. Sclerenchyma. Collenchyma. Fibrous 

 Tissue. Conductive Tissues. Tracheary Tissue. Sieve 

 Tissue. Laticiferous Tissue 27 



CHAPTER III 



Groups of Tissues, or Tissue Systems (Histology) 



In Lower Plants. In Higher Plants. Apical Cells, Der- 

 matogen. Periblem. Plerome. Three Tissue Systems. 

 Epidermal System; Epidermis; Hairs; Stomata. Con- 

 ducting System; Vascular Bundles; Radial Bundles; 

 Concentric Bundles; Collateral Bundles; Closed Bundles; 

 Open Bundles. Secondary Thickening. Supporting 

 System; Collenchyma Strands; Fibrous Strands. Pali- 

 sade Parenchyma. "Sponge" Parenchyma. Storage 

 Parenchyma. Cork. Lenticels 43 



CHAPTER IV 



Plant Physiology 



Nutrition; Water; Imbibition; Osmosis; Turgor; Path of the 

 Water; Evaporation of Water; Root Pressure; Solutions; 

 ix 



