Polyblastia trachyspora (C.Knight) Müll.Arg.
Verrucaria trachyspora Knight, T.N.Z.I. 15: 355 (1883).
Type: New Zealand. ?Wellington, Sine loco. Charles Knight, WELT - not seen.
Thallus brownish, thin, continuous, saxicolous. Perithecia minute semi-immersed, hemispherical, dimidiate, black, ostiole punctiform, minute, prominent when wet. Ascospores colourless, cylindrical, oval, muriform 18 × 10 µm.
N: Wellington. Known only from the type collection.
Endemic