Parmotrema awasthii

Parmotrema awasthii is a little-known species of foliose lichen in the family Parmeliaceae. Found in India, it was described as new to science in 2003. The species grows on iron-rich rocks in the Western Ghats mountains of Karnataka at about 1650 metres elevation, where it forms leathery rosettes up to 7 cm across with grey upper surfaces and black hair-like projections along the edges. It is distinguished from similar species by its unique chemical composition and the presence of small blister-like swellings near the margins that split open but do not produce powdery propagules....read more on Wikipedia.