Figure 4. Thin Layer Chromatogram of essential oil of Plectranthus hadiensis and Plectranthus amboinicus at different maturity stages. [Ph₂ &Pa₂ = leaf essential oil of Plectranthus hadiensis and Plectranthus amboinicus after two months of transplanting; Ph₃ &Pa₃ = leaf essential oil of Plectranthus hadiensis and Plectranthus amboinicus after three months of transplanting; Ph₄ &Pa₄ = leaf essential oil of Plectranthus hadiensis and Plectranthus amboinicus after four months of transplanting; Phc &Pac = leaf essential oil of Plectranthus hadiensis and Plectranthus amboinicus collected from open market solvent system Methanol 1: cyclohexane 1:dicloromethane 4]

From

Pharmacognostical investigation of Plectranthus hadiensis (Forssk.) Schweinf. ex Sprenger. and Plectranthus amboinicus (Lour.) Spreng

R. Muthukumarana, R.M. Dharmadasa

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