In Québec, the order Arthoniales brings together 11 species of mushrooms, in 4 families. The stars? Frosted Comma Lichen, Jaguar-spot Comma Lichen and Bark scribble, the most often observed. The richest region: Outaouais, with 5 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.