title: Composition of essential oils from leaves and flowers of Stachys germanica subsp. salviifolia (Ten.) gams (Labiatae) and related secretory structures.
abstract: The essential oils from both leaves (L) and flowers (F) of Stachys germanica subsp. salviifolia (Ten.) Gams (Labiatae/Lamiaceae) from Italy were analyzed by GC-MS for the first time. The distribution, morphology and histochemistry of the different types of glandular trichomes present on the epidermal surface were also determined. Twenty-nine constituents, representing 89.4% of the total leaf oil, and forty-one compounds, forming 97.8% of the total flower oil, were identified. Germacrene D (39.4%), phytol (10.2%), beta-bourbonene (3.5%) and beta-ylangene (3.3%) were recognized as the main constituents of the leaf essential oil, while limonene (24.1%), beta-pinene (18.7%), germacrene D (12.8%) and (E)-nerolidol (6.6%) were the main compounds of the flower essential oil.
authors.affiliation: Department of Vegetal Biology, University ofFlorence, via La Pira 4, 50121 Florence, Italy.
authors.forename: Claudia
authors.initials: C
authors.lastname: Giuliani
authors.forename: Roberto Maria
authors.initials: RM
authors.lastname: Pellegrino
authors.forename: Bruno
authors.initials: B
authors.lastname: Tirillini
authors.forename: Laura Maleci
authors.initials: LM
authors.lastname: Bini
mesh_terms: D035264:Flowers / Q000737:chemistry* / Q000648:ultrastructure; D009822:Oils, Volatile / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D031366:Stachys / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils