The circadian clock in all organisms is so intimately linked to light reception that it appears as if evolution has simply wired a timer into the mechanism that processes photic information. Several recent studies have provided new insights into the role of light input pathways in the circadian system of Arabidopsis.

In this contribution, new data concerning bryophytes, fungi and lichens of the Italian flora are presented. It includes records confirmations for algal genus Chara , bryophyte genera Bryum Grimmia Cephaloziella Hypnum Nogopterium Physcomitrium Polytrichastrum Rhynchostegiella Saelania Schistostega fungal Cortinarius Lentinellus Omphalina Xerophorus lichen Acarospora Agonimia Candelariella Clado...

The lichen specimens belonging to the order Lecanorales were collected from calcareous rocks in various areas of Mashhad. (Khorasan province). Specimens were taken back to the laboratory and identified. The identification of the species is based on morphology, anatomy and chemistry. They compose of  8  taxa  belonging  to 7 genera, namely, Lecanora conferta, L. muralis, Rhizocarpon umbilicatum,...

This paper documents the results of in situ analysis of 306 lava paving stones and 74 possible source rocks using pXRF. Data were collected from sites both in the city of Rome—on major roads beyond the city (including the Viae Flaminia, Cassia, Clodia, Praenestina and Appia)—and in the city of Ostia. Comparison of the pXRF data with lava compositional data from the geological literature allows ...