Its most famous species is Caloscypha fulgens. The fruiting body of C. fulgens is roughly cup-shaped, although the cup may be somewhat flattened, lopsided or split; the size is up to 4 cm in diameter. The inner surface of the cup is orange-yellow, while the external surface is pale yellow. Either the margin around the rim or the entire outer surface may be stained olive-green. The green or bluish staining that occurs upon injury or with age is unique within the order Pezizales. The stem, if present, is rather short. The spore deposit is white.