Deadly galerina vs deadly webcap: two rusty-spored mushrooms, two different killers

Quick answer

The deadly galerina grows on rotting wood, often in clusters, with a thin membranous ring; the deadly webcap grows from soil and moss under conifers, with a cobweb-like veil (cortina) on young caps and yellowish bands of veil on the stem but no true ring. Both are deadly and drop a rusty brown spore print, but they carry different toxins: amatoxins in the galerina, orellanine in the webcap.

Deadly lookalike

The deadly galerina and the deadly webcap can be fatal.

Unlike the deadly webcap, the deadly galerina (Galerina marginata) contains amatoxins, the same toxins as the death cap, at similar concentrations, according to the University of British Columbia's Mushrooms Up! guide. Amatoxins stop cells from making proteins by blocking the enzyme RNA polymerase II. The Bay Area Mycological Society records that symptoms usually begin 6 to 24 hours after eating, followed by an apparent recovery and then liver damage from about 72 hours. Cooking does not destroy amatoxins. The deadly webcap (Cortinarius rubellus) contains orellanine, which destroys the kidneys. First Nature records that the first symptoms are usually delayed by two or three days, then flu-like symptoms, headache and vomiting, followed by kidney failure. In an Estonian series of seven orellanine poisonings, first symptoms could appear up to three weeks after the meal; six patients needed dialysis, and ten months later three were still on it.

If someone has eaten a wild mushroom and feels unwell, or may have eaten one of these, call poison control now: 1-800-222-1222 in the US. Do not wait for symptoms.

Side by side

The tell for each

A single deadly galerina with an orange-brown cap and gills, leaning over gray slate fragments
Deadly
Deadly GalerinaGalerina marginata

The tellSmall honey-brown caps in clusters on rotting wood, with rusty brown gills, a thin ring on the stem, and a rusty brown spore print.

Cortinarius rubellus

Photo coming

Deadly
Deadly WebcapCortinarius rubellus

The tellOrange-brown, pointed cap, rusty brown gills, and yellowish bands of veil on the stem, in mossy conifer woods.

How they differ

Differences between the deadly galerina and the deadly webcap
FeatureDeadly GalerinaDeadly Webcap
What it grows onDeadly GalerinaRotting logs and stumps, sometimes wood chips.Deadly WebcapSoil and moss in wet conifer forests, mycorrhizal with spruce and pine.
GrowthDeadly GalerinaOften in clusters.Deadly WebcapSingle or in small groups.
Veil and ringDeadly GalerinaA thin membranous ring or ring zone.Deadly WebcapA cobweb-like veil on young caps; yellowish bands on the stem, no true ring.
Cap shapeDeadly GalerinaConvex, then flat or with a low central bump.Deadly WebcapConical to bell-shaped, keeping a pointed central bump.
Cap surfaceDeadly GalerinaSmooth, slightly sticky when moist.Deadly WebcapDry, with fine fibers or tiny scales.
ToxinDeadly GalerinaAmatoxins, which destroy the liver.Deadly WebcapOrellanine, which destroys the kidneys.
Delay before symptomsDeadly GalerinaUsually 6 to 24 hours.Deadly WebcapUsually two or three days, and up to three weeks.

FAQ

Common questions

Which is more dangerous, the deadly galerina or the deadly webcap?

Both can kill. The galerina's amatoxins attack the liver within days; the webcap's orellanine destroys the kidneys after a delay of days to weeks, and survivors may need long-term dialysis.

Do the deadly galerina and the deadly webcap grow together?

They can share northern conifer forests, but the galerina grows on rotting wood and the webcap from soil and moss.

Sources

Where these facts come from

  1. Galerina marginata

    MushroomExpert.com

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