Accumulation of Pb in Epiphytic Plant Tillandsia brachycaulos A Study on the Morphology of Foliar Trichomes of Evergreen Oaks (Quercus) in China and Its Implication in Taxonomy A SEM STUDY ON THE MORPHOLOGY OF FOLIAR SURFACE OF SEABUCKTHORN AND ELAEAGNUS AND THEIR IMPLICATION ON TAXONOMY1.THE MORPHOLOGY OF FOLIAR SURFACE AND THEIR ATTACHMENT Foliar Structure of Several Species of Epiphytic Tillandsia(Bromeliaceae) Quantitative taxonomic analyses of Actinidia (Actinidiaceae) in China based on micromorphological characters of foliar trichomes