1. Department of Botany, University of Otago, PO Box 56, Dunedin 9054, New Zealand
2. Department of Microbiology, University of Otago, Dunedin, New Zealand
3. Department of Botany, Swedish Museum of Natural History, Stockholm, Sweden
4. Manaaki Whenua–Landcare Research, Lincoln, New Zealand
5. Manaaki Whenua–Landcare Research, Wellington, New Zealand
6. Independant scholar, Auckland, New Zealand
7. Department of Biochemistry, University of Otago, Dunedin, New Zealand