Evernia illyrica

Evernia illyrica is a rare species of fruticose lichen in the family Parmeliaceae. It is native to Europe and North Africa. It grows in a hanging manner, reaching lengths of up to 30 cm, and attaches to its base by a single point. The lichen's main body (thallus) is uniformly grey to whitish-grey with no distinct upper or lower surfaces, featuring rich but irregular branching patterns with branches that grow parallel to each other. Though reproductive structures (apothecia) are rare, when present they appear as disc-like formations up to 4 mm across with a brown centre surrounded by a thin rim. The species is extremely rare and endangered in Italy, and has been documented in well-preserved forests across Spain (particularly the Pyrenees), Albania, Turkey, and Morocco, where it typically grows on large trees in undisturbed habitats....read more on Wikipedia.