title: [Histo-anatomical researches of two subspecies of Lavandula angustifolia Mill].
abstract: OBJECTIVE
  The structure of the inflorescences of two subspecies of Lavandula angustifolia sL. angustifolia ssp. angustifolia and. L. angustifolia ssp. pyrenaica (D.C.) Guineaţ was studied to determine the range of variation in certain histo-anatomical characters.
  
  
  METHODS
  The flower and leaf structure has been analysed on cross and superficial section using the usual techniques and methods applied in plant histo-anatomical research.
  
  
  RESULTS
  In cross-section, inflorescence axis has a squared-shape contour, with four proeminent ribs. On the epiderme of inflorescence axis there are present stomata, trichoms and secretory hairs. The trichoms are pluricelullar and T-branched. The secretory hairs have a short pedicel and a uni-or bicellular head.
  
  
  CONCLUSIONS
  The study revealed that there are only quantitative differences, referring to the degree of sclerification and lignification of mechanical elements and the size of the vascular bundles.
authors.affiliation: Facultatea de Farmacie, Disciplina de Farmacognozie, Universitatea de Medicină si Farmacie Gr.T. Popa Iaşi.
authors.forename: Silvia
authors.initials: S
authors.lastname: Robu
authors.forename: Ramona
authors.initials: R
authors.lastname: Galeş
authors.forename: C
authors.initials: C
authors.lastname: Toma
authors.forename: Ursula
authors.initials: U
authors.lastname: Stănescu
mesh_terms: D035264:Flowers / Q000033:anatomy & histology*; D027523:Lavandula / Q000033:anatomy & histology* / Q000145:classification; D018515:Plant Leaves / Q000033:anatomy & histology*; D054046:Plant Stomata / Q000033:anatomy & histology; D058526:Plant Vascular Bundle / Q000033:anatomy & histology