Horn of plenty Craterellus cornucopioides
Right now
Edition of 2 October
- St George's mushroom
- Bronze bolete
- Chanterelle
- Cep (penny bun)
- Parasol mushroom
- Field mushroom
- Horn of plenty
- Winter chanterelle
- Hedgehog mushroom
- Saffron milk cap
- Bay bolete
- Wood blewit
- Oyster mushroom
- fruiting
- starting
- quiet
- out of season
Horn of plenty — fruiting: Haute-Savoie; starting: Ain, Ariège, Isère, Savoie.
When to look
From September to November. Favourable temperatures: 8 to 17 °C. It usually fruits 5 to 13 days after at least 12 mm of rain.
Where to look
- Habitat
- Broadleaves (beech, hornbeam), damp mossy soils
- Soil
- Acidic to chalky soils, damp (pH 5.0 to 7.2)
How to recognise it
Fruit body entirely hollow down to the base, shaped like a horn or a flared trumpet 5 to 10 cm tall, with no clear separation between cap and stem. Inner surface grey-black to bistre brown, finely scaly; outer surface (the fertile part) grey to blackish, smooth or merely marked with lengthwise veins, without gills or thick folds. Flesh very thin (1 to 2 mm), supple and elastic, with a pleasant aromatic smell. Fruits in dense troops in broadleaf litter, often under beech and hornbeam, where it is hard to spot.
Dangerous look-alikes
Elfin saddle
Helvella lacunosapoisonousSame grey-black colours, and it sometimes grows mixed in with the horns of plenty, but it is not a horn: the cap is a lumpy saddle with two or three lobes folded down and fused in places to the top of the stem, never an open funnel hollow down to the base. The stem, thick and dark grey, is deeply ribbed and hollowed with honeycomb-like pockets, whereas that of the horn of plenty is smooth and runs without a break into the horn. Poisonous raw or undercooked.
Foraging tips
Look-alikes are few: the species that truly resemble it are other Craterellus (ashen chanterelle, sinuous chanterelle), also edible — the main risk is walking past it. The only look-alike to discard is the elfin saddle, poisonous raw or undercooked, which sometimes grows in the same carpets and shares their dark colour: check that each piece is indeed a smooth horn, hollow in one piece, and not a lumpy saddle on a ribbed stem. Split the horns to shake out needles, slugs and soil; the species dries very well and can be ground into an aromatic powder.
Model reliability
Reliability for this species: moderate.
Validation details
AUC 0.72 · Boyce index 0.49, using spatial cross-validation on GBIF observations.
The Sporia map shows the favourable spots forest by forest.
See the exact spotsThe map app is in French for now — English is coming soon.