In this research, five species of the genus Polystichum, belonging to Dryopteridaceae, namely, P. lonchitis, P. woronowii, P. setiferum, P. braunii and P. aculeatum, were collected from Gilan and Mazandaran Provinces and studied micro-morphologically. In order to compare the spores, their morphology and their ornamentation was studied. The spores each were picked from sporangia and each sample ...

One of the most important aromatic plants is Pimpinella anisum. The genus Pimpinella contains 23 species that are found wild in different regions of Iran. Pimpinella eriocarpa is distributed in south and west of Iran. In this research, the oil composition of P. eriocarpa was studied. Essential oils were isolated by hydro-distillation from the arial parts and seeds of Pimpinella eriocarpa indivi...

the genus hypericum is one of the most important medicinal plants that contain 17 species in iran, three of them are endemics. this paper reports the essential oil composition of eight hypericum species from iran. the essential oil analysis of a number of the studied plants has already been reported but their report from iran may be valuable for scientists.  samples collected from different pla...

One of the most important aromatic plants is Pimpinella anisum. The genus Pimpinella contains 23 species that are found wild in different regions of Iran. Pimpinella eriocarpa is distributed in south and west of Iran. In this research, the oil composition of P. eriocarpa was studied. Essential oils were isolated by hydro-distillation from the arial parts and seeds of Pimpinella eriocarpa indivi...

in order to investigation of collembola fauna, several soil and leaf litter sampling were carried out during 2011 in kermanshah regions and species were extracted by berlise funnel. in sum, eight species from eight genera from seven families were collected and identified. the species characterized by one star (*) are new for kermanshah fauna. the species characterized by two star (**) are repor...