Description: Thallus totally immersed in the thallus of Dibaeis baeomyces, inapparent, not lichenized. Apothecia micareoid, 0.2-0.4 mm across, black, often arranged in small clusters, with a strongly convex disc, without a proper margin. Proper exciple indistinct; epithecium green (K-, N+ red) or brown (K-, N-); hymenium colourless or pigmented in upper part, 45-60 μm high; paraphyses branched, 1.5-2 μm thick at mid-level, the apical cells to 3 μm wide; hypothecium coloured as the epithecium. Asci 8-spored, cylindrical-clavate, the I+ blue tholus with a wide, I+ dark blue tube structure that expands towards the top, without a pale axial body. Ascospores 1-celled, hyaline, ellipsoid, 8-13 x 4-7 μm. Pycnidia black, immersed in the thallus, the wall red-brown, greenish around the ostiole. Conidia bacilliform, 3.8-5 μm long. Photobiont absent. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a non-lichenised parasite on the thallus of Dibaeis; overlooked, and probably widespread throughout the Alps.
Growth form: Lichenicolous fungus
Substrata: soil, terricolous mosses, and plant debris
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)