Atla alaskana

Species of lichen

Atla alaskana is a species of saxicolous (rock-dwelling), crustose lichen in the family Verrucariaceae. Found in Alaska, it was formally described as a new species in 2015 by Sanja and Leif Tibell. The type specimen was collected from Sukakpak Mountain at an altitude of 776 m (2,546 ft); there, it was found growing on calciferous rock ledges in open dwarf shrub. The lichen has a thick, whitish-grey thallus with a granular to verrucose (warted) texture.

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