In Québec, the genus Cronartium (family Coleosporiaceae) counts 3 species of mushrooms. The stars? White Pine Blister Rust, Pine-oak gall rust and Pine-pine Gall Rust, the most often observed. The richest region: Capitale-Nationale, with 2 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.