1. Symbiotrophy of lignophytes and fungi: Its terminological and conceptual deficiencies

   • S. A. Wilde
   • Andre Lafond

   OriginalPaper Pages: 99 - 104

2. Cytocatalytic evolution in plants

   • Walter H. Lewis

   OriginalPaper Pages: 105 - 115

3. The use of histochemical reagents for cytochrome oxidase in plant tissues

   • Joost Harwig

   OriginalPaper Pages: 116 - 129

4. The continuum concept of vegetation

   • Robert P. McIntosh

   OriginalPaper Pages: 130 - 187