CONTENTS vii 



PAGE 



67. Surface fibers 225 



68. Bast fibers 228 



69. Mixed fibers 231 



70. Pseudo-fibers 239 



71. Woody fibers 240 



72. Wood in general 241 



73. True woods 256 



74. Pseudo-woods 272 



75. Cork 279 



76. Elastic gums 280 



77. Resins 287 



78. Coloring matters 290 



79. Oils 295 



80. Fuel 297 



81. Useful and harmful plants in general 302 



CHAPTER VII 

 CLASSIFICATION AND DESCRIPTION 



82. Systematic classification 305 



83. Early attempts at classifying 306 



84. Artificial systems 307 



85. The Linna'an system 308 



86. The natural system 310 



87. Technical description 312 



88. Early attempts at describing _ 312 



89. The Linna'aa reform in terminology 313 



90. Terminolog3' and nomenclature 314 



CHAPTER VIII 

 THE PARTS OF A SEED-PLANT 



91. Flax as a t-\-pe 316 



92. The seed 316 



93. The seedling and its development 317 



94. The flower and the fruit 319 



95. Physiological division of labor 319 



96. Organs and their functions 321 



97. Morphological differentiation 322 



98. INIorphological units .323 



99. :Members of the plant bodv 323 



100. Homologies 326 



CHAPTER IX 

 THE CROWFOOT FAMILY 



101. General features 328 



102. The ^-egetatlve organs compared 330 



