In Québec, the genus Placynthiella (family Trapeliaceae) counts 3 species of mushrooms. The stars? Pear Tar-spot Lichen, Stiff Tar-spot Lichen and Placynthiella lichen, the most often observed. The richest region: Nord-du-Québec, with 2 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.