Description: Thallus crustose, usually episubstratic but thin and often poorly visible, continuous or faintly rimose, pale pink to whitish. Apothecia 0.2-0.3 mm across, at first immersed in the thallus and almost perithecioid, then sessile, urceolate, with a concave, pink to pale yellowish disc, and a whitish, smooth, prominent proper margin. Epithecium almost colourless to pale orange-brown; hymenium and hypothecium colourless; paraphyses swollen at apices, hardly longer than the mature asci. Asci 8-spored, cylindrical to elongate-subclavate, thin-walled, without tholus, the wall and the contents I+ blue. Ascospores submuriform, hyaline, very variable in shape (subglobose to ellipsoid or slightly diamond-shaped), 10-16 x 6-10 µm. Photobiont trentepohlioid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: an inconspicuous, perhaps overlooked species found on vertical faces of calcareous rocks in humid, damp and shaded situations in upland areas.