Chlorovibrissea bicolor

Detailed description

The apothecia are superficial, stipitate, scattered or in swarms, not confluent, up to 10 mm high. The fertile head is subglobose or lobed, up to 4 mm diameter. It is yellow when fresh, drying grey-black, but recovering to slightly darker yellow when soaked. The head is totally covered with the hymenium except where the stalk is inserted in an umbilicis. The stalk is up to 1 mm thick, tough and rather stiff when fresh, cylindrical with a small mycelial pad at the point of attachment. It is dark green when fresh, drying black and remaining so, finely scurfy. The asci, which are cylindrical with a tapering stalk, are 132–155 x 5–6.5 µm and contain 8 spores. The ascospores are filiform, thinner at one end, 53–60 x 1.5–2 µm, and contain numerous oil drops; no septation was seen.