Zahlbrucknerella fabispora

Zahlbrucknerella fabispora is a species of lichen in the family Lichinaceae. It was first discovered in 1977 growing on basaltic rocks in the spray zone of Iceland's Gullfoss waterfall by the German lichenologist Aino Henssen. The species is distinguished by its tiny black rosettes and distinctive bean-shaped spores, which are unique amongst members of its genus. It inhabits cool, damp environments where water seeps or sprays over volcanic rocks, and has since been found scattered across the Northern Hemisphere from Alaska to Russia....read more on Wikipedia.