In Québec, the genus Xanthoparmelia (family Parmeliaceae) counts 6 species of mushrooms. The stars? Cumberland Rock Shield, Peppered Rock-shield and Shingled Rock-shield Lichen, the most often observed. The richest region: Montérégie, with 4 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.