Stereocaulon is a genus of lichens. Members of Stereocaulon are commonly called rock foam lichens. Photobiont partners of Stereocaulon include green algae from the genera Asterochloris, Chloroidium, a
The Cladoniaceae are a family of lichen-forming fungi in the order Lecanorales, comprising about 560 species distributed amongst 18 genera. This family is one of the largest among lichen-forming fungi
The pixie cup, Cladonia pyxidata, was one of the first lichens to be scientifically described.
The t points to the leaf-like scales (squamules) of the ground-hugging primary thallus.
The upright secondary thallus, with stalks (podetia) topped by cup-shaped structures (apothecia). The red slime on the cup rims contains asexual reproductive spores (conidia).