Comparative anatomy of some selected species of the poppy family (Papaveraceae) in Iran Print

In the present study، a comparative anatomical study of stem، midrib of basal leave and fruit is provided. In this paper، 45 anatomical characters of stem، midrib and fruit of some species such as Glaucium grandiflorum، G. fimbrilligerum، G. corniculatum، G. contortuplicatum، G. haussknechtii، G. elegans and other species such as Roemeria hybrida، R. refracta، H. pendulum and C. majus are presented. In this study، we report the presence of glandular hair in G. oxylobum and G. pulchrum for the first time. Among the examined traits، some traits such as shape of placenta، the presence of hairs، carpellary angle، the shape of carpellary angle، the number of external and internal layers of parenchyma of outer wall of ovary، the number of vascular bundles of placenta in the fruit and the presence of the central cavity، existence of hairy glands، the number of vascular bundles of phloem، lack of strengthening tissue surrounding the vascular bundles in the midrib of some species are different and the differences are significant enough to be useful in the delimitation of some species of Glaucium. Anatomical features of midrib in these genera indicate، in spite of some differences، the fundamental structure is similar، so cross section of blade by itself cannot be a good scale for identification of the species of the genus Glaucium and other genera. Anatomical features of stem are neither a suitable scale for separating species of Glaucium، nor for other genera. Anatomical features of fruit are useful in identification and determination species of genus Glaucium، but also، for four other genera، especially cross section of the fruit of H. pendulum showed significant differences in comparison with other genera. Some anatomical features of fruit in Glucium can be used in taxonomically grouping of the genus. The most important traits are the apparent shape of ovarian placenta.