Fig. 1

PCA of twenty components for the leaf essential oils of eight Tunisian Eucalyptus species. For the abbreviation of the Eucalyptus species (▲): a: E. accedens; b: E. bosistoana; c: E. cladocalyx; l: E. lesouefeii; m: E. melliodora; p: E. punctata; r: E. robusta; W: E. wandoo