The composition of isolated floras has long been thought to be the result of relatively rare long-distance dispersal events. However, it has recently become apparent that the recruitment of lineages may be relatively easy and that many dispersal events from distant but suitable habitats have occurred, even at an infraspecific level. The evolution of the flora on the high mountains of Africa has...

A taxonomic revision of the Alchemilla in High Atlas Mountains has been carried out. This genus is represented Morocco by atlantica, A. gourzai, litardieri, mairei and a new taxon boratynskii, sp. nov., described here from range. Data on their chorology, ecology phenology, as well an identification key, are provided. The conservation status this newly narrow endemic other four taxa, also endemi...

Resumen Context: Alchemilla japonica is a therapeutically important medicinal plant, which is widely used in traditional medicine external application for injuries as well as orally for acute diarrhea, dysmenorrhea, and menorrhagia, among others. However, there is not a correct identification of this species and is of prime importance differentiate it from commonly available adulterants or subs...

Recent observations suggest that long-duration γ-ray bursts and their afterglows are produced by highly relativistic jets emitted in core-collapse explosions. As the jet makes its way out of the stellar mantle, a bow shock runs ahead and a strong thermal precursor is produced as the shock breaks out. Such erupting fireballs produce a very bright γ-ray precursor as they interact with the thermal...

The Yellowstone supervolcano is one of the largest active continental silicic volcanic fields in the world. An understanding of its properties is key to enhancing our knowledge of volcanic mechanisms and corresponding risk. Using a joint local and teleseismic earthquake P-wave seismic inversion, we revealed a basaltic lower-crustal magma body that provides a magmatic link between the Yellowston...

Introduction: The thick mantle material in the etched unit (Nple) and dissected unit (Npld) of in northeast