Hypoxylon ticinense

A species with a striking, vivid and intense orange coloration and a yellowish growing margin.

Asci cylindrical, 8-spored, uniseriate, up to 90 µm long and 4-5.5 µm wide, with all spores concentrated in the upper part of the ascus, and a discoid amyloid apical apparatus staining blue in Melzer's reagent.

Paraphyses very abundant, filamentous, hyaline, septate, 2-3 µm wide.

Ascospores ellipsoidal, flattened on one side, smooth-walled, light brown under the microscope, with a straight germ slit and a perispore dehiscent in KOH.

Herbarium material available: JTP2591/25.