Amundsenia

Amundsenia is a genus of saxicolous (rock-dwelling) crustose lichens in the family Teloschistaceae. It comprises two species. The type species, A. austrocontinentalis, is known found in continental Antarctica, while Amundsenia approximata only occurs in the Arctic. These small orange lichens form thin, crusty growths on rocks in some of Earth's coldest regions, surviving temperatures and conditions that few other organisms can tolerate. The genus was discovered through DNA analysis that revealed these polar lichens from opposite ends of the planet were actually close relatives, despite being separated by the entire globe....read more on Wikipedia.