Chemotaxonomic value of the essential oil compounds in species of Teucriumpumilum aggregate

Volatile compounds from the aerial parts of Teucrium lepicephalum Pau and T eucrium carolipaui C. Vicioso ex Pau, both belonging to the Teucrium pumilu m aggregate, were analysed by capillary GC and GC-MS. From the common and s pecific compounds (mono- and sesquiterpenes) of the two taxa, chemical char acterization was carried out and taxonomic relationships were assessed. App lication of the cluster and k-means discriminant analysis shows a different ial chemical relationship between T. lepicephalum and Teucrium carolipaui. (C) 2000 Published by Elsevier Science Ltd.