Phaeoacremonium chiangmaiense (CMUB 40065, holotype) a, b appearance of ascomata on the host surface c vertical section of ascomata d ostiolar canal e section of peridium f, g hamathecium h–j ascogenous hyphae with asci attached k–n ascospores o germinated ascospores p, q colonies on PDA (p-front and q-reverse views). Scale bars: 100 µm (c); 40 µm (d); 20 µm (e, f, h–j); 10 µm (g, o); 5 µm (k–n).