1. Laboratory of Systematic Botany, Department of Crop Science, Agricultural University of Athens, Athens, Greece
2. Division of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
3. Department of Ecology and Systematics, School of Biology, National and Kapodistrian University of Athens, Athens, Greece
4. Episkopos, Lefkada, Greece