Deadly galerina vs sulphur tuft: two poisonous clusters on wood

Quick answer

Sulphur tuft has sulfur-yellow to greenish-yellow caps and greenish-yellow gills that darken to purple-brown, and drops a purple-brown print; the deadly galerina is honey-brown with yellowish to rusty brown gills that never show green, and drops a rusty brown print. Both are poisonous.

Deadly lookalike

The deadly galerina can be fatal.

Unlike sulphur tuft, 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. Sulphur tuft (Hypholoma fasciculare) is poisonous. The Mushrooms Up! guide records symptoms 5 to 10 hours after eating, with severe nausea, vomiting and diarrhea, and notes that its intensely bitter taste discourages most people.

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.

A clump of sulphur tufts with tawny yellow caps on slender stems growing from a log
Toxic lookalike
Sulphur TuftHypholoma fasciculare

The tellDense clusters of sulfur-yellow caps on dead wood, with greenish-yellow gills that darken to purple-brown.

How they differ

Differences between the deadly galerina and the sulphur tuft
FeatureDeadly GalerinaSulphur Tuft
Cap colorDeadly GalerinaHoney-brown to tawny, fading to tan.Sulphur TuftSulfur yellow to greenish yellow, often orange-brown at the center.
GillsDeadly GalerinaYellowish, then rusty brown; no green tint.Sulphur TuftSulfur to greenish yellow, then olive, then purple-brown.
Spore printDeadly GalerinaRusty brown.Sulphur TuftPurple-brown to dark purple-black.
RingDeadly GalerinaA thin membranous ring or ring zone.Sulphur TuftA faint ring zone that turns purple-brown from falling spores.
FleshDeadly GalerinaThin and brownish.Sulphur TuftYellow; taste recorded as intensely bitter.
ClusterDeadly GalerinaSmall clusters or groups.Sulphur TuftDense clusters of many joined stems.

FAQ

Common questions

Is sulphur tuft poisonous?

Yes. It causes severe nausea, vomiting and diarrhea about 5 to 10 hours after eating, according to the University of British Columbia's Mushrooms Up! guide.

Does sulphur tuft have green gills?

Yes, when young: sulphur tuft gills are sulfur to greenish yellow, then olive, then purple-brown as the spores mature. The deadly galerina's gills are yellowish, then rusty brown, with no green tint.

Sources

Where these facts come from

  1. Galerina marginata

    MushroomExpert.com

  2. Hypholoma fasciculare

    MushroomExpert.com

  3. Hypholoma fasciculare, sulphur tuft (Mushrooms Up!)

    Beaty Biodiversity Museum, University of British Columbia

  4. Galerina marginata, deadly galerina (Mushrooms Up!)

    Beaty Biodiversity Museum, University of British Columbia

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