About Cladonia cornuta (L.) Baumg.
Cladonia cornuta, commonly called bighorn cup lichen, is a species of fruticose cup lichen belonging to the family Cladoniaceae. It was first formally described as a new species by Swedish lichenologist Carl Linnaeus in his influential 1753 work Species Plantarum. German biologist Georg Franz Hoffmann reclassified the species, transferring it to the genus Cladonia in 1791. This lichen has a distribution across circumpolar, boreal, and arctic regions, and has also been documented growing in the Southern Hemisphere. In North America, it is also known colloquially as bighorn Cladonia.
