Diaporthe coryli on Corylus mandshurica (BJFC-S1671). A, B Habit of conidiomata in wood C transverse section of conidiomata D longitudinal section through conidiomata E conidiogenous cells attached with alpha conidia F alpha conidia. Scale bars: 500 μm (B–D); 10 μm (E); 20 μm (F).