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Wood hedgehog or Jelly tooth

Wood hedgehog and Jelly tooth are similar species that can be mixed up while foraging. The main visible difference: flesh colour change: Wood hedgehog — yellowing, Jelly tooth — no change. The mushrooms also differ in the following features: stem, cap colour, smell.

Not sure? Identify by photo

Side by side

Wood hedgehogJelly tooth
Comparison of characteristics: Wood hedgehog and Jelly tooth
Edibility classWood hedgehog: EdibleJelly tooth: Conditionally edible
UseWood hedgehog: Cook fresh, Drying, PicklingJelly tooth: Cook fresh
SizeWood hedgehog: Medium (5–15 cm)Jelly tooth: Small (up to 5 cm)
Cap colourWood hedgehog: Cream, Yellow, OrangeJelly tooth: White, Grey, Brown
Cap surfaceWood hedgehog: VelvetyJelly tooth: Slimy, Velvety
TasteWood hedgehog: MildJelly tooth: —
SmellWood hedgehog: PleasantJelly tooth: Odourless
Flesh colour changeWood hedgehog: YellowingJelly tooth: No change
StemWood hedgehog: CentralJelly tooth: Lateral, Eccentric
SubstrateWood hedgehog: Soil, Moss, Forest litterJelly tooth: Dead wood, On wood, Moss
Nutrition typeWood hedgehog: MycorrhizalJelly tooth: Saprotroph
Partner treesWood hedgehog: Pine, Spruce, Beech, Oak, FirJelly tooth: Spruce, Pine, Fir
Growth habitWood hedgehog: In groups, In ringsJelly tooth: Solitary, In groups

Same in both: season, cap shape, hymenophore.

When and where they meet

Together: August–November

Their seasons overlap: August–November. At that time you can find both in the same woods. Shared habitats: conifer forest, mixed forest.

Wood hedgehog

Fruiting season

July – November

Jelly tooth

Fruiting season

August – November

What they look like

Cap, Hymenophore, Stem, Flesh, Smell

Cap

Wood hedgehog

The cap is 4-15 cm across and irregular, with an unevenly wavy margin. Convex when young, it flattens and spreads out with age, with a lumpy surface and a depressed centre. It's ivory, cream or ochre-yellow to light orange, turning reddish-brown in old mushrooms. The surface is dry and silky, like suede, and slightly sticky in wet weather. The cap skin is thin and peels easily.

Jelly tooth

The fruit body is jelly-like, tongue-, fan-, spoon- or shell-shaped, attached at the side, and usually a few centimetres across.

The top is finely hairy at first, then almost smooth, faintly granular or suede-like. The colour varies a lot: translucent white, watery grey, grey-brown or brown, sometimes bluish grey and occasionally almost black, even on the same stump.

Hymenophore

Wood hedgehog

The spines are the key diagnostic feature. The underside of the cap is densely packed with thin, pointed spines 3-6 mm long that break off easily. They're white to cream, yellowing with age and turning reddish-ochre in old mushrooms. The spore print is white.

Jelly tooth

The underside is covered in crowded, soft, translucent spines 1 to 4 mm long, white or greyish, which carry on down the stem.

The spore print is white.

Stem

Wood hedgehog

The stem is 3-8 cm tall and 1-3 cm thick, cylindrical, often widening toward the base, sometimes eccentric (off-centre from the cap). It's white to cream, yellowing slightly where pressed. The surface is smooth, with no ring. The stem flesh is firm, becoming spongy in old mushrooms.

Jelly tooth

The stem is short, attached at the side or off-centre, watery grey or whitish. On flat surfaces it can be longer and more central, and sometimes it's almost absent.

Flesh

Wood hedgehog

The flesh is thick, white, firm and brittle, and slowly turns pale ochre when cut (a slight yellowing). Young mushrooms have a delicate, pleasant nutty flavour; mature ones have a slightly bitter aftertaste that goes away after a brief boil.

Jelly tooth

The flesh is jelly-like, soft, translucent and watery.

Smell

Wood hedgehog

A faint, pleasant mushroomy-fruity smell with a hint of fresh nuts. The taste is mild and delicate, slightly bitter in old mushrooms.

Jelly tooth

The smell is indistinct.

Related comparisons

Sources · 16

  • [1]Вікіпедія (українська)
  • [2]Атлас грибів України, Зеров Д.К. (1979)
  • [3]MycoBank Database
  • [4]Index Fungorum
  • [5]GBIF
  • [6]iNaturalist Ukraine
  • [7]Wikipedia (English)
  • [8]Википедия (русская)
  • [9]Spirin V., Malysheva V., Viner I., Dudka V., Grebenc T., Miettinen O. Taxonomy and multigene phylogeny of Pseudohydnum (Auriculariales, Basidiomycota). Mycological Progress, 2023, 22: 40, Spirin V., Malysheva V., Viner I., Dudka V., Grebenc T., Miettinen O. (2023)
  • [10]First Nature: Pseudohydnum gelatinosum, Jelly Tooth
  • [11]Emberger G., MushroomExpert (Fungi on Wood): Pseudohydnum gelatinosum
  • [12]North Sutherland Wildlife Group: Pseudohydnum gelatinosum, Toothed Jelly Fungus
  • [13]Naturalis, Mushrooms of the Netherlands: Pseudohydnum gelatinosum
  • [14]Wikipedia (de): Gallertiger Zitterzahn
  • [15]Шульга В. М. Світ грибів України: Псевдоїжовик драглистий
  • [16]GBIF: знахідки Pseudohydnum gelatinosum в Україні