xiv CONTENTS 



VII. THE WAY IN WHICH NEW PLANTS ARISE 



178. Distribution of the individuals of a species . . . 130 



179. Methods of reproduction 131 



180. Reproduction by cuttings 132 



181. The stem may reproduce the entire plant . . . 132 

 182. The root may reproduce the entire plant .... 132 

 183. Structures used by plants as means of vegetative repro- 

 duction 133 



184. Tubers 133 



185. Bulbils and bulblets 134 



