TY - JOUR AU - Perrone, Rosaria AU - De Rosa, Paolo AU - De Castro, Olga AU - Colombo, Paolo PY - 2013/10/10 Y2 - 2024/03/29 TI - Leaf and stem anatomy in eight Hypericum species (Clusiaceae) JF - Acta Botanica Croatica JA - Acta Bot. Croat. VL - 72 IS - 2 SE - Articles DO - UR - https://www.abc.botanic.hr/index.php/abc/article/view/681 SP - AB - Foliar micromorphology, epicuticular wax morphology and anatomical featuresof leaves and stem, particularly secondary xylem, were examined with light microscopy,general and histochemical staining and scanning electron microscopy in eightHypericum species. Outer tegument tissue and type of secondary xylem are determiningcharacteristics. Secondary xylem is ring-porous in <em>H. perforatum</em>, <em>H. perfoliatum</em>, <em>H. tetrapterum</em>, <em>H. triquetrifolium</em>, <em>H. androsaemum</em> and <em>H. hircinum</em>. In <em>H. aegypticum</em> and <em>H. pubescens</em> xylem is diffuse-porous, which is considered to be a more primitive type.These characteristics may be considered an additional criterion for species identification. ER -