Distribution: C - Tosc (TSB 34246, Brackel 2016), Sar (CLU 3654). S - Bas (CLU 16573), Cal (Puntillo 1994, 1996, Puntillo & Puntillo 2009, Brackel & Puntillo 2016, Brackel 2016).
Description: Thallus not evident, not lichenized. Apothecia short-stalked to subsessile, 0.2-0.3 mm high, developing on the thalli of Haematomma ochroleucum. Stalk 0.06-0.1 mm thick, entirely black or pale at the base, the central part formed by hyaline hyphae, the outer part sometimes greenish grey, especially in upper part. Capitulum hemispherical or lenticular, 0.15-0.35 mm across. Excipulum grey green in lowermost and outer parts, 10-14 µm thick, consisting of 3-5 layers of periclinally arranged hyphae. Epithecium colourless; mazaedium not present; hypothecium colourless to pale brown. Asci 8-spored, cylindrical, with a thickened apex penetrated by a narrow canal, formed singly, persisting until the uniseriately arranged spores are mature. Ascospores 1-celled, dark brown, slightly fusiform to broadly ellipsoid, 8-10 x 4-5 µm, the wall minutely ornamented. Photobiont absent. Spot tests: excipulum and stalk K+ fleeting but strongly red, C-, KC-, P-, N-. Chemistry: without lichen substances, except a yellowish to red, unidentified pigment reacting K+ red.
Note: parasitic or parasymbiont on the thalli of the Haematomma ochroleucum in underhangs of basic siliceous rocks protected from rain below the subalpine belt; probably more widespread in Tyrrhenian Italy.