Helvella acetabulum is a species of fungus in the family Helvellaceae, order Pezizales. This relatively large cup-shaped fungus is characterized by a tan fruit body with prominent branching ribs resembling a cabbage leaf; for this reason it is commonly known as the cabbage leaf Helvella. Other colloquial names include the vinegar cup and the brown ribbed elfin cup.
Source: Wikipedia
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Distribution
Widespread and but uncommon
Habitat
Typically with deciduous trees on calcareous soils
Fruiting Body
Apothecial, cup shaped, often becoming somewhat wavy. Paler when young. Underside granular becoming ribbed below and forming a short, ribbed and grooved white stem
| Colour | |
|---|---|
| Surface | Smooth |
| Width | 2 - 8 cm |
Spores
| Colour | |
|---|---|
| Shape | Ellipsoid |
| Ornamentation | Smooth |
| Size | 16-19 x 11-12 μm |
Microscopic Features
Asci 200 - 400 x 15 - 20 μm, cylindrical, 8-spored. Paraphyses smooth, cylindrical, septate, branched, becoming clavate towards tip.
Classification
- ↳ Phylum: Ascomycota
- ↳ Subphylum: Pezizomycotina
- ↳ Class: Pezizomycetes
- ↳ Subclass: Pezizomycetidae
- ↳ Order: Pezizales
- ↳ Family: Helvellaceae
- ↳ Genus: Helvella
Synonyms
- Acetabula acetabulum (L.) Underw. & Earle
- Acetabula vulgaris Fuckel
- Aleuria acetabulum (L.) Gillet
- Aleuria acetabulum (L.) anon. ined.
- Helvella acetabulum (L.) Quelet
- Macroscyphus acetabuliforme Gray
- Paxina acetabulum (L.) Kuntze
- Paxina acetabulum (L.) O. Kuntze
- Paxina sulcata (Pers.) Kuntze
- Peziza acetabulum L.
- Peziza sulcata Pers.
Reference Sources
S. Buczacki, C. Shields, D. Ovenden (2012) Collins Fungi Guide. HarperCollins.
T. Læssøe, J. H. Peterson (2019) Fungi of Temperate Europe Vol. 2. Princeton University Press.
