Fauna
Fungus

Scaly Ink Cap

Coprinopsis variegata

Also known as Feltscale Inky Cap, Scaly Inky Cap

Scaly ink caps emerge in dense clusters on decaying hardwood, leaf litter, and buried wood throughout spring and summer. Young caps are covered in felt-like, woolly scales that fragment into distinct patches as the cap expands and darkens. As the mushroom matures, auto-digestion liquefies the gills into a thick, black, spore-laden ink that drips onto the surrounding substrate.

FungusDecomposerInk Cap
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyDecaying hardwood, Lignin, Cellulose
Predators
  • Fungus gnats
  • Slugs
  • Springtails
ThreatsHabitat clearing, removal of coarse woody debris
HabitatsDeciduous forests, parklands, woodchip beds
Life spanIndividual mushrooms last 1–3 days before deliquescing
  1. OrderAgaricales
  2. FamilyPsathyrellaceae
  3. GenusCoprinopsis
  4. SpeciesCoprinopsis variegata
Range data is not available yet.
Interaction riskHigh
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is high
Causes stomach distress; many wild mushrooms have toxic look-alikes, so never eat wild fungi based on app ID.
Why it is dangerous
Contains toxins that trigger significant gastrointestinal illness, including nausea, vomiting, and abdominal cramps, especially when combined with alcohol.
How to recognize a risky encounter
Look for felt-like yellowish or brownish scale patches on pale grayish caps that rapidly liquefy into dark ink.
What to do
Avoid picking or touching specimens unnecessarily, and wash hands after handling wild mushrooms.
Responsible observation
  • Observation: Check back after a few hours to watch the cap liquefy into black ink.
  • Photography: Capture the fibrous scaly cap patches on young fresh specimens before auto-digestion begins.
  • Identification: Inspect the substrate to confirm it is growing directly from decaying hardwood or buried wood.
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