Devil's Matchstick

''Pilophorus acicularis'', commonly known as the nail lichen or the devil's matchstick, is a species of lichen in the Cladoniaceae family.

''P. aciculare'' has both crustose and fruticose thallus body parts. The lichen starts out as a granular crust on the rock surface, and develops fruticose stalks, or ''pseudopodetia'', up to 3 cm tall and about 1 mm thick that have rounded black apothecia at the tips. The stalks are erect and curved so as to appeared combed. It grows directly on.. more