Hypomontagnella monticulosa

Historically known as Hypoxylon monticulosum, characterized by the absence of extractable pigments in mature stromata in KOH, and spores with a sigmoid germ slit.

Asci cylindrical, uniseriate, up to 100 µm long and 4-6 µm wide, with a long pedicel, spores concentrated predominantly in the upper half, with an amyloid apical apparatus in Melzer's or Lugol's solution.

Ascospores ellipsoidal, flattened on one side, very dark brown under the microscope, smooth-walled, with a sigmoid germ slit extending the entire spore length, and a perispore dehiscent in KOH.

Herbarium material available: JTP2770/26.