1. Department of Pharmacognosy, University of Szeged, Eötvös str. 6., H-672, Hungary
2. Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös str. 6., H-6720, Hungary
3. Department of Pharmacognosy and Botany, Comenius University, Odbojárov 10, Sk -83232, Bratislava, Slovakia
4. Institute of Ecology and Botany of the Hungarian Academy of Sciences, Alkotmány 2, H-2163 Vácrátót, Hungary