TABLE OF CONTENTS. XIU 



PAGE 



I. Bundle-trunks. 



Sect. loo. Synopsis 317 



„ loi. Collateral Bundles 319 



„ 102. Bundles of the Leaves of Cycade.-e and I soetetE 335 



,, 103. Bicollateral Bundles 338 



„ 104-105. Concentric Bundles 339 



„ 106. Concentric Bundles of the Ferns 342 



„ 107. Radial Bundles 348 



„ 108. Radial Bundles of Typical Roots 351 



„ 109. Root-bundles of Abnormal Structure 364 



„ no. Imperfect and Rudimentary Bundle-trunks 366 



2. Ends .-^nd Connections of Vascular Bundles. 



,, III. Endings in the Cortex, and in the Foliar Expansions 



., 112. PecuHarities of Leaves of the Coniferae .... 



„ 113. Terminations in Roots and Haustoria .... 



„ 114. Connections of Bundles ....... 



C. Development of the Vascular Bundle. 



„ 115. Development of the Individual Bundle 



„ 116. Development of the Bundle-system in the Stem. Succession of the 



Bundles. Their Morphological Position 

 ,, 117. Development of the Lateral Roots 



Concluding Remarks .... 



371 

 378 

 383 

 385 



388 



392 

 397 

 399 



CH.\PTER IX. 

 Arrangement of the Primary Parenchyma. 



Sect, 118. General Considerations .... 



119. Pith, Medullary Rays. External Cortex . 



120. Petioles, Ribs of the Leaf .... 



121. Lamina of the Leaf (Mesophyll, Diachymaj 



122. Cortex of the Root, Root-cap . 



123. Parenchymatous Sheaths, Endodermis, Starch-layer 



-Plerome-sheath 



402 

 402 

 405 

 406 

 412 

 414 



Sect. 



124. 

 125. 

 126. 

 127. 

 128. 

 129. 



CHAPTER X. 

 Sclerenchyma and Sclerotic Cells. 



General Considerations 

 Fibrous Layers and Strands 

 Isolated Fibres .... 

 Short Sclerenchymatous Elements 

 Thorns, Prickles, Warts 

 Sclerotic Elements of the Ferns 



417 

 417 



423 

 425 



425 

 426 



CHAPTER XI. 

 Secretory Reservoirs. 



130. 



431 



