Phylliscum

Phylliscum
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lichinomycetes
Order: Lichinales
Family: Phylliscaceae
Genus: Phylliscum
Nyl.
Type species
Phylliscum demangeonii
(Moug. & Mont.) Nyl. (1855)
Synonyms
  • Cryptotheliomyces Cif. & Tomas. (1953)

Phylliscum is a genus of lichen-forming fungi in the family Phylliscaceae. These lichens are small and often appear as tiny dark patches or scales tightly pressed against rock surfaces. They are easily overlooked due to their minute size, but can be found on exposed rocks in dry, sunny locations around the world.