1. Subtropical Plants and Olive Trees Institute, National Agricultural Research Foundation, Chania, Crete, Greece
2. School of Pharmacy, Department of Pharmacognosy and Natural Product Chemistry, Panepistimiopolis Zografou 15771, University of Athens, Athens, Greece
3. Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, 29 Novembar 142, 11 000 Belgrade, Yugoslavia
4. Department of Botany, University of Athens, Athens, Greece