CONTENTS. 



4. Lycopodiacese . 



5. Marsileacese 



6. Equisetacese 



7. Filices 

 2. Eeproduction of Phanerogamous or 



nous Plants 



1. Eeproduction of G-ymnospermia 



2. Eeproduction of Angiospermia 



Hybridization or Hybridation 



3. Of the Fruit . . . . 



Chemical Constitution of Fruits 

 Eipening of Fruits .... 



4. Of the Seed 



Vitality of Seeds .... 

 Preservation and Transportation of Seeds 

 Germination . . . . . 

 Length of Time required for Germination 

 Conditions requisite for Germination 

 Process of Germination 

 Direction of Plumule and Eadicle 

 Differences between the Germination of 

 nous and Monocotyledonous Seeds 



1. Monocotyledonous Germination 



2. Dicotyledonous Germination 



Cotyledo- 



Dicotyledo- 



770 

 770 

 771 

 771 



772 

 773 

 775 

 779 

 781 

 782 

 784 

 784 

 784 

 785 

 786 

 786 

 787 

 787 

 788 



788 

 789 

 789 



CHAPTEE 2. 



general physiology, oe life of the whole plant . 790 



Section 1. 



FOOD of plants AND ITS SOUECBS . .790 



1. The Organic or Volatile Constituents and their Sources 791 



2. The Inorganic Constituents or Ash and their Sources . 793 



Eotation of Crops 794 



Section 2. 



LIFE OF THE WHOLE PLANT, OB THE PLANT IN ACTION 795 



1. Absorption 795 



2. Distribution of Fluid Matters through the Plant, and 



their Alteration in the Leaves . . . .797 



Ascent of the Sap 797 



Changes of the Crude Sap in the Leaves, &c. . . 799 



Descent of the Sap 801 



