Leaf spots amphigenous, angular to irregular, vein-limited, dark brown at first, then grayish in the center, with a dark margin, 3-14 × 2-6 mm, often confluent. Fruiting amphigenous. Stromata lacking or up to 50 μm wide, subimmersed, globular, dark brown. Conidiophores 3-12 in a fascicle, slightly curved or undulate, pale olivaceous brown, paler towards the apex, uniform in width, multiseptate, not branched, rarely geniculate, conically truncate at the apex, 50-200 × 3.5-4.5 μm; conidial scars unthickened. Conidia subhyaline to very pale olivaceous, cylindric or obclavato-cylindric, straight or slightly curved, 2-12 septate, subobtuse or rounded at the apex, subtruncate to obconically truncate at the base, 30-125 × 3-4.5 μm; hilum unthickened.
Specimens：
Taiwan, Taipei, 20 Nov. 1933, holotype in Herb. NTU-PPE, labelled as Cercospora hydrangeana Tharp.
Habitat：
On leaves of Hydrangea angustipetala Hayata (‘angllstisepala’)
Distribution：
Taiwan.
References：
Hsieh, WH and Goh, TK. 1990.
Provided：
W. H. Hsieh
Note：
Cercospora hydrangeana Tharp (Mycologia 9:110, 1917) differs from this fungus by its thickened conidial scars. Cercospora obtegens H. & P. Sydow (Ann. mycol. 7:171, 1909) differs from this fungus by its hypophyllous effuse fruiting, nonfasciculate conidiophores and dark-coloured conidia.
Phylum：Ascomycota >> Class： Dothideomycetes >> Order： Dothideomycetes 
BCRC Number：