Melomastia puerensis (GMB1173, new host record) a, b appearance of ascomata on the host surface c section of peridium d vertical section of an ascoma e ocular chamber in lactophenol cotton blue reagent f, k hamathecium g–j asci l–p ascospores. Scale bars: 200 µm (d); 100 µm (g–j); 50 µm (k); 20 µm (c, f); 10 µm (l–p).