What is the dusty orange stuff on the underside of the leaves. Has anyone else ever seen this?
Commonly occurring rust that does not seem to severely harm the mayapple (Podophyllum peltatum).
The Pucciniomycetes are class of fungi in the Pucciniomycotina subphylum of the Basidiomycota. The class contains 5 orders, 21 families, 190 genera, and 8016 species.
