Fool's webcap

Cortinarius orellanus

In Spanish: Cortinario de montaña · In Catalan: Cortinari de muntanya, Cortinari metzinós · In Basque: Sare hiltzaile · In Galician: Arañeira da morte

Fool's webcap

Photo: Andreas Kunze / Wikimedia Commons · CC BY-SA 3.0

Fool's webcap

Photo: Andreas Kunze / Wikimedia Commons · CC BY-SA 3.0

Fool's webcap

Photo: Giacomo Bresadola / Wikimedia Commons · Public domain

Fool's webcap

Photo: Thomas Pruß / Wikimedia Commons · CC BY-SA 3.0

Fool's webcap

Photo: Mordecai Cubitt Cooke / Wikimedia Commons · Public domain

Fool's webcap

Photo: The original uploader was Michaelll at English Wikipedia. / Wikimedia Commons · CC BY-SA 2.5

DeadlySeason Sep–NovSeason calendar →

Do not pick and do not taste. It is on the map for reference — so you know it by sight.

A dry, tawny-orange cap, finely felted, with widely spaced gills of the same rusty shade and the remains of a cobweb veil — not a ring — on the stem. It contains orellanine, and that is what sets it apart from everything else here: there are no symptoms. Anything from a few days to three weeks passes with nothing, and by the time the thirst and the kidney pain arrive the damage is irreversible. Whoever ate it does not connect the mushroom with what is happening to them.

Quick facts

Scientific name
Cortinarius orellanus Fr. (1838)
Family
Cortinariaceae
Edibility
Deadly
Season
Sep–Nov
Usual altitude
312–1,226 m
Under which trees
Oak, Holm oak, Beech, Chestnut, Hazel
IUCN Red List
Not evaluated (NE)

Where it grows

Oak, beech and chestnut on acid soil, often among heather and bilberry. September to November, in the northern half and the north-western ranges.

Confused with

  • ChanterelleCantharellus cibarius

    A chanterelle has thick blunt folds running down the stem, not gills, and smells of apricot. The orange colour is the only thing they share.

  • False chanterelleHygrophoropsis aurantiaca

    Thin, crowded gills of a vivid orange and soft flesh. Its white spore print separates it from the webcap, whose print is rusty.

When it has been found

Finds recorded in Spain, by month: 102 in all, from GBIF. They show when it fruits, and also when people go looking.

Jan: 1, Feb: 0, Mar: 0, Apr: 1, May: 0, Jun: 2, Jul: 1, Aug: 7, Sep: 23, Oct: 27, Nov: 28, Dec: 0

Where it has been found

Each square is an area of about 20 km with recorded finds; the darker, the more finds. It does not pinpoint patches: for where it is coming up now, see the forecast map.

Where it comes up

Areas where this species is scoring highest right now.

See it on the map

Sources

The usual altitude and the trees come from our own fit of the model to those finds and to the Spanish Forest Map (Mapa Forestal de España).

Would you know them from a photograph? →

The description is for reference. Identifying a mushroom from a photograph is unreliable: do not eat anything you are not sure of.