New Records of Species and Hosts from Erysiphe sect.Erysiphe
This paper reports two new record species,viz.Erysiphe macleayae originally collected in Russia and E.takamatsui in Anhui Province of China,and three new record host plants of Erysiphe sect.Erysiphe,viz.Mazus pumilus(E.sedi)and Pleuropterus multiflorus(E.polygoni)originally collected in the world and viz.Neustanthus phaseoloides(E.polygoni)within China.Descriptions of morphological characteristics and molecular identifications on the above powdery mildew species with discussions are given in details.