تشريح مقايسه اي برگ گونه هاي (Asteraceae: Inuleae) در ايران

COMPARATIVE LEAF ANATOMY OF THE INULA SPECIES (ASTERACEAE: INULEAE) IN IRAN

The genus Inula L. belongs to tribe Inuleae (Asteraceae) with about 100 species in the world. In this study, leaf in cross section and epidermis in superficial view were studied. Twenty one characters were used for separating the species with an identification key. The most important characters like kind of hairs, shape of epidermal cells on both surfaces, stomata in superficial view and in cross section, number of vascular bundles, rows of palisade parenchyma and aspect of sclerenchyma were used for analyzing with SPSS program. Based on anatomical characters of leaf, nine clusters were recognized: Inula acaulis and I. rhizocephala in the first cluster; I. grantioides in second cluster; I. rajamandii, I. viscidula and I. oculus-christi in third cluster; I. persica and I. britanica in fourth cluster; I. thapsoides and I. vulgaris in fifth cluster; I. helenium in sixth cluster; I. aucheriana in seventh cluster; I. salicina in eighth cluster and I. montbretiana in ninth cluster. These results supported the morphological studies reported before.