Figure 2From: Variation of chemical composition of essential oils in wild populations of Thymus algeriensis Boiss. et Reut., a North African endemic SpeciesLinear descriminant analysis (LDA) for the essential oil compounds of the 8 T. algeriensis populations. Projection of the average contents of the essential oil compounds onto the first two principal axes (+ and - indicate positive and negative correlations with the axes, respectively). Coding numbers of populations' locations and for the detailed description of the bioclimatic zones: see Table 1.Back to article page