Lopadium

Lopadium is a genus of lichen-forming fungi in the monotypic family Lopadiaceae, which is in the order Lecideales. The genus contains 12 species. These lichens form thin, crust-like growths made up of fine granules or tiny scale-like flakes and produce small, stalkless disc-shaped reproductive structures that are distinctly narrowed at the base, giving them a pinched appearance. Distinguished by their unusual spore-producing sacs that contain only a single large ascospore instead of the typical eight, Lopadium...