''Homothecium'' is a genus of

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.fungi in the family Pannariaceae.

References

Peltigerales Lichen genera Peltigerales genera Taxa described in 1853 Taxa named by Abramo Bartolommeo Massalongo {{Peltigerales-stub