Hypotrachyna brueggeri

Hypotrachyna brueggeri is a species of foliose lichen in the family Parmeliaceae. Described as a new species in 2002, it is known only from the type locality in southeastern Brazil, where it was collected at elevations of 1,000–1,400 m (3,300–4,600 ft). This lichen forms sprawling rosettes 10–15 cm across with broad, overlapping lobes and is distinguished by distinctive branched pustules that give its surface a rough texture. It grows on both tree bark and granite rocks in the moist montane forests of the Mantiqueira and Serra do Mar mountain systems, where persistent fog provides the humid conditions it requires....read more on Wikipedia.