In Québec, the class Taphrinomycetes counts 11 species, in 1 order. The stars? Eastern American alder tongue gall fungus, Oak Leaf Blister and Taphrina communis, the most often observed. The richest region: Montérégie, with 7 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.