ABSTRACT: A new species of Dissoconium is described. The fungus was found on the cuticle of apple fruit sampled from an orchard in Shaanxi Province, China. Its morphology is compared with other Dissoconium species, and phylogenetic analysis based on ITS sequence is presented.

KEYWORDS: Dissoconium mali, Mycosphaerella, taxonomy, sooty blotch, internal transcribed spacer, rDNA