The microbial communities inferred in silica sinter rocks, based on multiscale morphological features (fabrics and textures) the presence of lipid biomarkers their carbon isotopic composition, are evaluated Krýsuvík geothermal area Iceland. Close to vent environments (T > 75 °C pH 1.7‒3), stream floors capped with homogeneous vitreous crusts breccia levels, no distinct recognizable silicifie...

The genus Cleome, belongs to the family Capparidaceae. Seven species were found in KhorasanProvince (Iran). Fresh materials were collected from its natural habitat and were sectioned with a sliding microtome with the following procedures: 1. Section were cleared and stained, 2. Staining without prior removal of the paraffin. Vessel preparations were obtained by maceration using Jeffrey solution...

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 cro...