Glandular hairs and secreted material in Salvia blepharophylla Brandegee ex Epling grown in Italy

Morphological and histological investigations of cuticle and indumentum, as well as identification of the main components of the secreted material, we re carried out for Salvia blepharophylla Brandegee ex Epling. Besides nongl andular hairs, three types of glandular trichomes (peltate and capitate) ar e described and compared with trichomes in other species. The histological findings and chemical analysis of the essential oil and leaf surface extrac ts revealed a complex secretion product. GC-MS analysis of the essential oi l showed that eugenol, cis-3-hexenyl benzoate, cis-jasmone, trans-nerolidol , benzyl alcohol and C-19-C-23 n-alkanes were the main identifiable compone nts, whereas the flavonoids nuchensin and pedalitin, the neo-clerodane dite rpenoid salvianduline D, and the triterpenoids ursolic acid and alpha-amyri n were isolated from the extract. (C) 1999 Annals of Botany Company.