Dear Sabine Prunus avium L. syn. Cerasus avium (L.) Moench. ssp. avium is native in Europe. I do not know how it is in Switzerland. It could be collected in the forest. Best wishes Krystyna At 08:42 2003-10-23 +0200, you wrote: >I found a Prunus avium bead in a neolithic lake site settlement >(3380-3376 BC) in the Swiss "Alpenvorland". I wonder where it came >from - trade or ? > >Did anyone find Prunus avium ealier than the Roman period? > >Thanks >Sabine Hosch > > Krystyna Wasylikowa E-Mail: [log in to unmask] W.Szafer Institute of Botany Polish Academy of Sciences Lubicz 46 31-512 Krakow, Poland