CONTENTS OF DIVISIONAL VOLUME V. 



LIST OF ILLUSTRATIONS. 



Plate XIV. Fungi at Home.— Drawn by Ernst Heyn, - 



Illustrations in the Text— Fig. 296 to Fig. 372. 



PAGE 



to face 492 



THE GENESIS OF PLANT-OFFSPRING.— Continued. 



Page 



Autogamy — Continued, - 337 



Fertilization and Formation of Fruit in 



Phanerogams, 401 



Page 



3. Change in Reproductive Methods. 



Fruits Replaced by Offshoots, - - - 452 

 Parthenogenesis, ..... 4(33 

 Heteromoiphism and Alternation of Genera- 

 tions, - - 469 



THE HISTORY OF SPECIES. 



1. The Nature of Species. 



Definition of Species, - 



The Specific Constitution of Protoplasm, 



486 

 487 



2. Alteration in the Form of Species. 



Dependence of Plant Form on Soil and 



I limate, - - - - - - 495 



The Influence of Mutilation on the Form of 



Plants, - 514 



Alteration of Form by Parasitic Fungi, - 518 

 Alteration of Form by Gall-producing Insects, 527 

 Genesis of New Forms as a Result of Crossing, 554 



3. The Origin of Species. 



The Genesis of New Species, - - - 576 

 Derivation of Existing Species, - - - 595 

 Subdivisions of the Vegetable Kingdom, - 600 

 Classification of Plants proposed by the 



Editor, ...... 616 



