Horn of plenty Craterellus cornucopioides

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Edition of 2 October

AinAisneAllierAlpes-de-Haute-ProvenceHautes-AlpesAlpes-MaritimesArdècheArdennesAriègeAubeAudeAveyronBouches-du-RhôneCalvadosCantalCharenteCharente-MaritimeCherCorrèzeCôte-d'OrCôtes-d'ArmorCreuseDordogneDoubsDrômeEureEure-et-LoirFinistèreCorse-du-SudHaute-CorseGardHaute-GaronneGersGirondeHéraultIlle-et-VilaineIndreIndre-et-LoireIsèreJuraLandesLoir-et-CherLoireHaute-LoireLoire-AtlantiqueLoiretLotLot-et-GaronneLozèreMaine-et-LoireMancheMarneHaute-MarneMayenneMeurthe-et-MoselleMeuseMorbihanMoselleNièvreNordOiseOrnePas-de-CalaisPuy-de-DômePyrénées-AtlantiquesHautes-PyrénéesPyrénées-OrientalesBas-RhinHaut-RhinRhôneHaute-SaôneSaône-et-LoireSartheSavoieHaute-SavoieParisSeine-MaritimeSeine-et-MarneYvelinesDeux-SèvresSommeTarnTarn-et-GaronneVarVaucluseVendéeVienneHaute-VienneVosgesYonneTerritoire de BelfortEssonneHauts-de-SeineSeine-Saint-DenisVal-de-MarneVal-d'Oise

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

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 spots

The map app is in French for now — English is coming soon.

Also in season

Where mushrooms are fruiting this week · All species

Sporia tells you where and when to look, never whether a mushroom is edible. If in doubt, eat nothing: have your harvest checked by an experienced identifier or a mycological society (in France, a pharmacist can also check it). Some look-alikes are deadly.