







1 









ANATOUr, AXD LIFE-HISTORY OF THE CONLFEUJE. 



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CONTENTS. 



Page 

 Introduction 226 



The Seedling Plant 230 



germination „ 230 



Radicle 231 



Cauliole 232 



Root 232 



Cotyledons 232 



Microscopic anatomy 237 



Plumule 240 



Foliation 242 



Parts of the leaves 242 



Arrangement of the leaves 243 



Homotaxy and Heterotaxy 243 



Movements of the leaves 248 



Microscopic anatomy 249 



Stomata 249 



Hypoderm 250 



Mesophyll 250 



Resin-canals 251 



Endoderm 253 



Pericyele 253 



Fibro-vascular bundles 253 



Bibliography 254 note 



Homomorphy and Heteromorphy 255 



Primordial or protomorphic leaves 257 



Relation to congenital or to external conditions 262 



Leaves on fertile branches 263 



Concrescence or imperfect separation 264 



Arrest or exaltation of growth 264 



Secondary leaves of Pinus 266 



Anatomical structure 267 



Monophyllous Pines 269 



Fascicled leaves of Cunning hamia 270 



Bti>s and Branches 270 



Arrangement 270 



Deperulation 272 



Order of development of buds 273 



Direction of growth of shoots 273 



Shape of the young shoot 27 



Spurs 275 



Cladodes or Phylloclades 276 



Phylfocladus .... 276 



Scittdojritys 276 



Anatomy and development 276 



Discussion as to their nature 





















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