Thallus obscure greenish-yellow or pale greenish-white, thin, granular-uneven or minutely granular-verrucose to minutely verrucose-areolate, delimited by a thin black prothallus, corticolous or lignicolous. Apothecia scattered, solitary to 1-2-confluent 0.05-0.2 mm diam., black, epruinose, slightly sunk in thallus, disc plane, matt black, margins thin, slightly raised, concolorous with disc, entire. Ascospores biseriate, greenish-grey to dark brown, oval with slightly pointed apices, slightly constricted at septum (11-)15.3-21(-24) × 5.1-8.3 µm.