13 Biologia, Bratislava,61/1: 79—83, 2006Section BotanyDOI: 10.2478/s11756-006-0011-2Pollen germination and pollen tube growthinFraxinus pennsylvanicaDarioKremer1& TomislavJemríc21Faculty of Pharmacy andBiochemistry, University of Zagreb, A.Kovači ́ca1,10000Zagreb, Croatia; tel.:+385-...