CONTENTS 



CHAPTER PAGE 



I. THE CELL i 



II. THE TISSUE SYSTEMS . . 8 



III. THE FIBROVASCULAR TISSUES: WOOD GENERAL ... 14 



IV. THE FIBROVASCULAR TISSUES: SECONDARY WOOD TRA- 



CHEIDS AND FIBERS 24 



V. THE FIBROVASCULAR TISSUES: SECONDARY WOOD PAREN- 

 CHYMA 37 



VI. THE FIBROVASCULAR TISSUES: SECONDARY WOOD RAYS . 61 



VII. THE FIBROVASCULAR TISSUES: SECONDARY WOOD VESSELS 92 



VIII. THE FIBROVASCULAR TISSUES: PHLOEM 107 



IX. THE EPIDERMIS 126 



X. THE FUNDAMENTAL TISSUES 132 



XI. DEFINITIONS OF THE ORGANS 136 



XII. THE ROOT 143 



XIII. THE STEM 162 



XIV. THE LEAF 199 



XV. THE MICROSPORANGIUM 214 



XVI. THE MEGASPORANGIUM AND SEED 223 



XVII. THE CANONS OF COMPARATIVE ANATOMY ...... 234 



XVIII. THE LYCOPSDDA AND PTEROPSIDA 244 



XIX. THE LYCOPODIALFS 252 



XX. THE EQUISETALES (INCLUDING SPHENOPHYLLALES) . . . 264 



XXI. THE FILICALES 277 



XXII. THE ARCHIGYMNOSPERMAE: CYCADOFILICALES AND CYCA- 



DALES 292 



XXIII. THE ARCHIGYMNOSPERMAE: CORDAITALES AND GINKGOALES 305 



XXIV. THE METAGYMNOSPERMAE: CONIFERALES 317 



XXV. THE METAGYMNOSPERMAE: GNETALES 357 



XXVI. THE ANGIOSPERMS 373 



