Aleuria aurantia (orange peel fungus) is a widespread ascomycete fungus in the order Pezizales. The bright orange, cup-shaped ascocarps often resemble orange peels strewn on the ground, giving this species its common name.

Taxonomy

Christiaan Hendrik Persoon described the orange peel as Peziza aurantia in 1800. The specific epithet is the Latin word aurantia "orange". Karl Wilhelm Gottlieb Leopold Fuckel placed it the genus Aleuria in 1870.

Description

The orange fruiting body is 1–10 cm wide, cup-shaped, externally fuzzy, and often misshapen due to crowding from other fruiting bodies. The spores produce a white spore print, and scatter in visible clouds when disturbed.

Similar species

Similar species include Acervus epispartius, Caloscypha fulgens, Sarcoscypha coccinea, Sowerbyella rhenana, and members of the genera Melastiza, Otidea, Peziza, Pithya, and Pulvinula. Particularly In Europe, A.aurantia may be confused with species of Otidea or Caloscypha which are poisonous or of unknown edibility.

Distribution and habitat

The orange peel fungus grows throughout North America, from November to March in the West and May to November in the East. It can also be found in south Chile and in Europe. It fruits mainly on bare clay or disturbed soil.

Uses

It is generally regarded as edible, though difficult to collect intact and not necessarily choice.