Caloplaca obscurella
Caloplaca obscurella is a species of crustose lichen in the family Teloschistaceae. Found in Europe, the lichen was first described as a new species of Blastenia by Johann Gottlieb Franz-Xaver Lahm in Gustav Wilhelm Körber's 1860 work Parerga lichenologica. It has been transferred to several genera in its taxonomic history, but was transferred to genus Caloplaca and given the binomial name it is now known as by Theodor Magnus Fries in 1871.