The thallus is thin, cracked, and lacks a protective outer layer (cortex), giving it a dull appearance.

These structures are typically round to irregularly shaped, sometimes branching slightly, and are often grouped together in stroma-like (supportive tissue) formations.

The ascomata measure between 0.5 and 1.4 mm in diameter and feature a bright orange, pruinose (powdery) disc that is exposed.

[3] Chemically, the thallus reacts to ultraviolet light with a white fluorescence and contains divaricatic acid and zeorin, two lichen products identified through thin-layer chromatography (TLC).

The ascomata also contain two anthraquinones, pigments responsible for the bright orange colour, although these compounds do not appear on TLC tests.