Cladonia scotteri

Cladonia scotteri (Scotter's lichen) is a species of lichen in the family Cladoniaceae. Described in 2011 from Nahanni National Park Reserve in the Northwest Territories, Canada, this mainly tundra lichen forms a persistent mat of small, grey-to-brown squamules (scale-like lobes). It also produces short, club-shaped podetia (upright stalks) with a distinctly checkered surface, usually topped with brown apothecia (fruiting bodies). It grows mainly on calcareous (lime-rich) soils in Arctic and subarctic regions, and is recorded from western North America, Greenland, and northeastern Asia (with one reported record from the Antarctic Peninsula)....read more on Wikipedia.