1. Paraphyly, ancestors, and the goals of taxonomy: A botanical defense of cladism

   • Michael J. Donoghue
   • Philip D. Cantino

   OriginalPaper Pages: 107 - 128

2. Systematics as science: A response to Cronquist

   • Christopher J. Humphries
   • Jennifer A. Chappill

   OriginalPaper Pages: 129 - 144

3. Some aspects of aluminum toxicity in plants

   • Ajoy Kumar Roy
   • Archana Sharma
   • Geeta Talukder

   OriginalPaper Pages: 145 - 178

4. Reproductive versus extra-reproductive nectaries—historical perspective and terminological recommendations

   • Rudolf Schmid

   OriginalPaper Pages: 179 - 227