Sona Akhondnezhad - PhD Student / Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
Taher Nejadsattari - Associate Professor / Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
Ali Sattarian - Assistant Professor / Gonbad Kavoos University, Faculty of Agriculture & Natural Resources, Gonbad Kavoos, Iran
Younes Asri - Assistant Professor / Botany Department, Research Institute of Forests and Rangelands, P. O. Box ۱۳۱۸۵-۱۱۶, Tehran, Iran
Mohammad Bagher Bagheriieh Najjar Bagheriieh Najjar - Assistant Professor / Gorgan University, Faculty of Science, Gorgan, Iran

Pollen morphology of four taxa of the genus Carpinus growing in Iran was examined, using light (LM) and scanning electron microscopy (SEM). The main aim of this study is to determine the pollen morphology of this genus in Iran and finding the pollen characteristics. The pollen grains are triporate, tetraporate and pentaporate and more or less subprolate. The shape of pores are more or less circular, the surface sculpture of exine is irregularly cone-shaped and the apex is pointed. C. orientalis Miller subsp. macrocarpa (Willk.) Browicz and C. betulus var. parva have the largest and smallest pollen size (mean = ۳۵.۱۸ ± ۳.۹۶ µm) and (mean = ۲۴.۹۵ ± ۰.۱۸ µm), respectively.

carpinus, Corylaceae, Taxonomy, pollen, Iran