P. pringlei P. stereothallina Pulvinora is a small genus of saxicolous (rock-dwelling), crustose lichens in the family Lecanoraceae.

The type species of the genus, P.  stereothallina, occurs in the Altai Mountains (Russia), while P. pringlei is found in North America.

[2] Pulvinora species have asci similar to those found in genus Lecanora.

The apothecia eventually become convex with an algal layer that is pushed below the hypothecium.

The form of the thallus is pulvinate (resembling tiny cushions), with squamules (scales) at the tips of pale brownish, branched structures similar to pseudopodetia.