CONTENTS 



CHAPTER III. 



I'AGK 



TissueSystems • • 326 



The epidermal tissue system 327 



The ground or fundamental tissue system 335 



'I'he vascular tissue system 343 



The stele • • 343 



The pericycle • 345 



The vascular bundles 346 



CHAPTER IV. 



The Strtjctube of the Stem 356 



Dicotyledonous type . . . 356 



Monocotyledonous type 367 



Other types of stem 370 



Schizostelic stems 371 



Polystelie stems . 374 



CHAPTER V. 



The Steuctube of the Root . . 376 



CHAPTER YI. 



The Steucthke of the Leaf . . . 385 



The mesopodium or petiole . . . 386 



The leaf-blade . . . 388 



Dorsi-ventral leaf . . . 391 



Iso-bilateral leaf ... . 392 



Centric leaf 393 



Index . . . . ... 397 



