Original scientific paper

https://doi.org/10.2478/botcro-2013-0008

Leaf and stem anatomy in eight Hypericum species (Clusiaceae)

Rosaria Perone ; University of Study of Palermo, Department of Earth and Marine Sciences, Division of Ecology, Viale delle Scienze, Ed. 16, Palermo I-90128, Italy
Paolo De Rosa ; University of Study of Palermo, Department of Earth and Marine Sciences, Division of Ecology, Viale delle Scienze, Ed. 16, Palermo I-90128, Italy
Olga De Castro ; University of Naples Federici II, Department of Biology, Botanical Garden, Via Foria 223, Naples I-80139, Italy
Paolo Colombo ; University of Study of Palermo, Department of Earth and Marine Sciences, Division of Ecology, Viale delle Scienze, Ed. 16, Palermo I-90128, Italy

Abstract

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 H. perforatum, H. perfoliatum, H. tetrapterum, H. triquetrifolium, H. androsaemum and H. hircinum. In H. aegypticum and H. pubescens xylem is diffuse-porous, which is considered to be a more primitive type.These characteristics may be considered an additional criterion for species identification.

Keywords

Anatomy; epiderma; epicuticular wax; Hypericum; morphology; SEM; stem; xylem

Hrčak ID:

109644

URI

https://hrcak.srce.hr/109644

Publication date:

10.10.2013.

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