Species details

Sheathed woodtuft

Kuehneromyces mutabilis

Extra caution required
Sheathed woodtuft – Kuehneromyces mutabilis

Photo: Dendrofil · CC0 · Photo source · License

Description

A brown clustered wood-growing mushroom with a hygrophanous two-toned cap and a ring on the stem.

Identification features

Below the ring the stem is scaly and darker. The deadly funeral bell is extremely similar, so the app does not treat this species as safe for unaided collecting.

Identification checklist

It grows in dense tufts on broadleaf wood. The wet cap is cinnamon-brown and two-toned; as it dries it pales from the centre while the margin remains darker. Gills become cinnamon-brown. The stem is pale and smooth above the ring, but dark, fibrous, and scaly below.

Detailed features

Cap
4–7 cm, hygrophanous; when moist yellow to cinnamon-brown with a distinctly darker margin, fading from the centre as it dries.
Hymenophore
Gills are pale at first, becoming cinnamon-brown as the spores mature.
Stem
5–10 cm tall and about 0.4–0.6 cm thick, with a ring; brownish-scaly below the ring and darker toward the base.
Flesh
Pale and thin in the cap; the stem is tougher and darker, especially toward the base.
Smell
Mild mushroom-like smell.
Spore print
Cinnamon to brown.

Size

Cap diameter
4–7 cm
Stem height
5–10 cm
Stem diameter
0,4–0,6 cm

Habitat

In dense clusters on stumps and dead hardwood.

Fruiting period

April, May, June, July, August, September, October, November

Ecology

Trophic mode
Saprotrophic
Substrate
Dead wood, Stumps
Notes
A saprotroph growing in dense clusters on stumps and dead wood, most often hardwood.

Distribution

Notes
A widespread European wood-inhabiting species that can fruit through much of the year when conditions are moist.

How to separate similar species

Deadly funeral bell can grow on the same stump and may sometimes require microscopy for reliable separation. Its visible characters are very variable, so a two-toned cap or ring is not enough.

Similar species

  • Funeral bell (Galerina marginata) DANGEROUS

    Funeral bell is deadly poisonous and can look very similar macroscopically. Separation by cap colour alone is unsafe; expert identification is needed when in doubt.

Interesting facts

Did you know? Hygrophanous caps can change colour markedly over a short time as the surface dries.

Extended-description sources