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AOBPreview originally published online on January 16, 2003
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Annals of Botany 91: 493-497, 2003
© 2003 Annals of Botany Company

Variability of the Essential Oil of Viola etrusca

GUIDO FLAMINI*,1, PIER LUIGI CIONI1 and IVANO MORELLI1

1 Dipartimento di Chimica Bioorganica e Biofarmacia, Via Bonanno 33, 56126 Pisa, Italy

* For correspondence. E-mail flamini{at}farm.unipi.it

Received: 18 September 2002; Returned for revision: 14 October 2002; Accepted: 22 November 2002    Published electronically: 16 January 2003

ABSTRACT

Essential oils obtained from different populations of Viola etrusca from Italy have been analysed to verify the phenotypic discontinuity observed in a previous study. All of the essential oils contained methyl salicylate as a main constituent. However, multivariate analysis showed differences among some populations, in particular between northern and southern ones. Results suggest that this species could be undergoing a slow schizogenetic differentiation process due to its genetic isolation.

Key words: Viola etrusca, Violaceae, essential oil variability, GC-MS, multivariate analysis.


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