Guepinia
| Guepinia | |
|---|---|
 |
|
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Auriculariales |
| Family: |
incertae sedis or |
| Genus: |
Guepinia Fr. |
| Species: | G. helvelloides |
| Binomial name | |
|
Guepinia helvelloides (DC.) Fr. |
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| Synonyms | |
|
Guepinia rufa (Jacq.) Beck |
|
Guepinia rufa (Jacq.) Beck
Gyrocephalus helvelloides (DC.) Keissl.
Gyrocephalus rufus (Jacq.) Bref.
Phlogiotis helvelloides (DC.) G.W. Martin
Phlogiotis rufa (Jacq.) Quél.
Tremella helvelloides DC.
Tremella rufa Jacq.
Tremiscus helvelloides (DC.) Donk
Guepinia is a genus of fungus in the Auriculariales order. It is a monotypic genus, containing the single species Guepinia helvelloides, commonly known as the apricot jelly. The fungus produces salmon-pink, ear-shaped, gelatinous fruit bodies that grow solitarily or in small tufted groups on soil, usually associated with buried rotting wood. The fruit bodies are 4–10 cm (1.6–3.9 in) tall and up to 17 cm (6.7 in) wide; the stalks are not well-differentiated from the cap. The fungus, although rubbery, is edible, and may be eaten raw with salads, pickled, or candied. It has a white spore deposit, and the oblong to ellipsoid spores measure 9–11 by 5–6 micrometers. The fungus is widely distributed in the Northern Hemisphere, and has also been collected from South America.
The species was first described and illustrated as Tremella rufa by Nicolaus Joseph von Jacquin in 1778. Elias Magnus Fries later (1828) called it Guepinia helvelloides in his Elenchus Fungorum, based on Augustin Pyramus de Candolle's Tremella helvelloides, both being names he sanctioned. This has made Tremella rufa and all names based on it unavailable for use, as they are conserved. Later, Lucien Quélet erected a separate monotypic genus Phlogiotis for Jacquin's species, whereas Julius Oscar Brefeld placed it (as Gyrocephalus rufa) in Persoon's small genus Gyrocephalus (rejected name for Gyromitra). The proper name for the fungus was debated for some time, as the name Guepinia is a homonym (pointed out by Fries in 1828), because it had been used by Toussaint Bastard in 1812 for a genus of flowering plants in the Cruciferae family. To further complicate matters, the generic name Teesdalia, originally considered to have priority over the name Guepinia for the plant genus, was later determined to have been validly published after Guepinia, rendering Teesdalia an illegitimate name. In 1982, changes in the International Code for Botanical Nomenclature gave protected status to all names adopted by Fries in the Elenchus Fungorum, and established Guepinia as the correct genus name.
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