白粉病菌(Powdery Mildews)是一类重要的植物病原真菌,它寄主广泛,分布普遍,是花卉及观赏植物常见的病害。从1982年起重点采集了各类植物的白粉病标本,现归纳有白粉病菌7个属的39科106种寄生植物,其中为害严重的 Powdery Mildews is a kind of important phytopathogenic fungi. Its host is widespread and widely distributed. It is a common disease of flowers and ornamental plants. Since 1982, the focus of the collection of powdery mildew samples of various plants, now summarized in 7 families of powdery mildew and 39 families 106 kinds of parasitic plants, of which serious damage