Abstract. Rock avalanches produce exceptionally long run-outs that correlate with their rock volume. This relationship has been attributed to the size-dependent dynamic lowering of effective basal friction. However, it also observed similar volumes can span several orders magnitude, suggesting additional controlling factors. Here, we analyse analogue models avalanches, experiments designed test...

SHORT COMMUNICATIONS

The genus Astragalus L. (Fabaceae) is reviewed from both phyloenetic and taxonomic points of view. As the largest genus of flowering plants it has attracted many researchers, but much work remains to be done. A short taxonomic history with special focus on infrageneric classification of the genus, a list of phylogenetic studies including the applied markers and sampling strategies as well a...