Figure 4

Plot of the two first canonical scores of the canonical discriminant analysis (CDA) at Clonee (a) and Kildakey (b) sites on the pollen gametes of Fraxinus spp. in Ireland. The pollen cloud differentiation for each mother tree is shown. Trees were grouped according to their flowering phenology (Int for intermediate dates of flowering; Early and Late for the two other flowering groups) and their sampling location (plantation trees in different shades of grey and native trees in different shades of blue). The figure shows 95% confidence intervals around the mean canonical score for the different groups.