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41 p.Background and aims: Juniperus excelsa M.-Bieb. is a major forest element in the mountains of the eastern part of Mediterranean and sub-Mediterranean regions. This study comprises the first morphological investigation covering a large part of the geographical range of J. excelsa and aims to verify the congruency between the morphological results and molecular results of a previous study.\udMethodology: We studied 14 populations sampled from Greece, Cyprus, Ukraine, Turkey and Lebanon, from which 11 have previously been investigated using molecular markers. Three hundred and ninety four individuals of J. excelsa were examined using nine biometric features characterising cones, seeds and shoots; and eight derived ratios. Statistical analyses were conducted in order to evaluate the intra and interpopulation morphological variability.\udPrincipal results: The level of intra-population variability observed did not show any geographic trends. The total variation mostly depended on the ratios of cone diameter/seed width and seed width/seed length.\udThe discrimination analysis, the Ward agglomeration method and barrier analysis results showed a separation into three main clusters of the sampled populations. These results confirmed, in part, the geographic differentiation revealed by molecular markers with a lower level of differentiation and a less clear geographic pattern. The most differentiated populations using both markers corresponded to old, isolated populations in the high altitudes of Lebanon (>2000 m). Moreover a separation of the northern Turkish population from the southern Turkish populations was observed using both markers.\udConclusions: Morphological variation together with genetic and biogeographic studies together make an effective good tool for detecting relict plant populations and also populations subjected to more intensive selection.The research was conducted within the statutory research programme of the Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland and supported\udby the Research Council of Saint-Joseph University of Beirut.Peer reviewe

Morphological versus molecular markers to describe variability in Juniperus excelsa subsp. excelsa (Cupressaceae)