Type: Foliicolous Fungi; Description: Mycelium: primary internal, secondary external. Hyphae of internal mycelium olivaceous brown, aggregating to form stromata; hyphae of secondary mycelium emerging through stomata, subhyaline to olivaceous brown, smooth, septate, 1–3 om wide. Stromata substomatal, somewhat erumpent, 10–200 μm in diameter. Conidiophores in small, loose to large, dense fascicles when arising from stromata or solitary when arising from external hyphae, straight, subhyaline to light brown, smooth to fairly rough-walled, 0–3-sepatate, 10–60 × 3–6 μm; conidiogenous cells with inconspicuous scars or subdenticulate. Conidia cylindrical, 1–7-septate, 15–70 × 3–4 μm, smooth to moderately rough-walled, subhyaline to olivaceous brown. Leaf spots pale to dark brown to purplish violet, greyish brown to grey when old, angular-irregular, with a red-purple to purplish violet margin, 0.5–7 mm in diameter, often confluent, on both sides of leaves.

Distribution: Northland, Auckland, Bay of Plenty, Taranaki, Taupo, Rangitikei, Wanganui, Wellington, Gisborne, Hawkes Bay, Nelson, Buller, Westland, North Canterbury, Mid Canterbury, South Canterbury, Southland.; 1st Record: Dick (1982: as Cercospora eucalypti).

Significance: Recorded from adult foliage of Eucalyptus nitens, but not regarded as a serious pathogen.; Host(s): Eucalyptus nitens, E. scoparia.