''Dermatocarpon atrogranulosum'', commonly known as the charred stippleback, is a species of saxicolous (rock-dwelling)

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Verrucariaceae The Verrucariaceae are a family of mostly lichenised fungi in the order Verrucariales. The lichen-forming species, which comprise the vast majority of the family, have a wide variety of thallus forms, and include crustose (crust-like), foliose ( ...

. It is found in a few locations in

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

, Canada, where it grows on

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

outcrops. It was formally described as a new species in 2003 by Austrian lichenologist Othmar Breuss. It is one of 24 ''

Dermatocarpon ''Dermatocarpon'' is a genus of lichens in the family Verrucariaceae. Members of the genus are commonly called stippleback lichens because they have fruiting structures called perithecia that are flask-shaped structures embedded in the nonfruiti ...

'' species known to occur in northern North America.

References

Verrucariales Lichen species Lichens described in 2003 Lichens of Western Canada {{Eurotiomycetes-stub