Botryosphaeria quercuum (Schweinitz) Saccardo, 1882
parasite
Branch canker. Black erumpent stromata; asci 16-30 x 70-130 µm, mostly 8 spores, 10-18 x 24-42 µm.
host plants
polyphagous
Crataegus; Cydonia; Fraxinus; Malus; Prunus; Pyrus; Ulmus.
notes
The anamorph is Sphaeropsis sumachi.
references
Brandenburger (1985a: 68).