New species of the diaporthales from eastern Asia and eastern North America.

Seven previously undescribed diaporthalean species were found in eastern Asia and eastern North America. Three of these new species and one previously known species are assigned to a new genus Leucodiaporthe. Descriptions and illustrations are provided for the new taxa including Allantoporthe leucoth6es sp. nov., Diaporthella corylina sp. nov., Leucodiaporthe acerina sp. nov., L. juglandis sp. nov., L. maackii comb. nov., L. robiniae sp. nov., Leucostoma pseudoniveum sp. nov., Leucostoma excipienda comb. nov., and Phragmodiaporthe padi sp. nov.