Parmelia lambii

Parmelia lambii is a species of foliose lichen in the family Parmeliaceae. It is found in the Antarctic Peninsula. The species was originally described in 1915 from a specimen collected on Jenny Island, but was later recognized as belonging to the genus Parmelia rather than Physcia and given a new name in 2009. This small, dark brown lichen forms narrow leaf-like lobes with tiny white spots and is covered in small wart-like growths, but has only been found in its non-reproductive state....read more on Wikipedia.