perithecial wall_shape_flat
flattened
perithecial wall 40-60µm wide, comprising two or three regions, outer region when present 15-20µm wide, composed of strongly pigmented thick-walled globose cells, middle region 15-20µm wide, comprising elongated to globose cells, inner region lining perithecial cavity, 10-15µm wide, comprising layers of flattened cells
Thelonectria veuillotiana
Thelonectria veuillotiana