Surprise Webcap

Cortinarius Semisanguineus

Cortinarius Semisanguineus

Info

Known as the Surprise Webcap, this mushroom is a master of disguise in the forest floor. At first glance, it appears as a nondescript, dull brownish fungus, but the "surprise" is revealed the moment you flip it over to see its vivid, blood-red gills. It has long been a favorite of natural dyers and artisans, who seek it out for the intense pigments hidden within its fibers.

πŸ” How to Identify

  • πŸ„ The Cap: Usually 2–8 cm wide, the cap is a dry, silky ochre or olive-brown color. It starts convex and flattens out with age, often retaining a slight central bump (umbo).
  • 🩸 The Gills: This is the defining feature; the gills are a deep, cinnabar or blood-red color, providing a startling contrast to the drab cap.
  • πŸ•ΈοΈ The Cortina: Like all webcaps, young specimens have a delicate, cobweb-like veil (the cortina) protecting the gills, which often leaves rusty spore deposits on the upper stem.
  • πŸ“‰ The Stem: The stalk is typically pale yellow or chrome-yellow, sometimes displaying reddish tints near the base where it meets the soil.

🌲 Habitat & Ecology

  • 🌲 Tree Partners: This mushroom is mycorrhizal, meaning it lives in a symbiotic relationship with trees. It is most commonly found under conifers like Pine and Spruce, though it occasionally appears near Birch.
  • 🌿 Mossy Ground: It prefers acidic, nutrient-poor soils and is frequently spotted poking through thick carpets of moss or leaf litter during late summer and autumn.

⚠️ Safety & Toxicity

  • 🚫 Status: STRICT WARNING: TOXIC. Like many members of the Cortinarius family, the Surprise Webcap is considered poisonous and should never be consumed.
  • ☣️ The Danger: Many webcaps contain orellanine, a potent toxin that can cause permanent kidney failure. While this specific species is primarily used for dyeing wool, it is strictly "look but don't cook."
  • 🧀 Handling: While touching the mushroom is generally safe, it is best to wash your hands after handling to avoid any accidental ingestion of spores or toxins.

✨ Fun Fact

The Surprise Webcap is a superstar in the world of "Mushroom Dyes." Despite its small size, the red gills are packed with anthraquinone pigments, which can dye sheep’s wool a brilliant, light-fast range of pinks, oranges, and deep "true" reds without the need for harsh chemicals!

More Details

Hymenium TypeLamella
Stipe CharacterCortina Stipe
Spore Print ColorBordeaux
Mushroom Cap ShapeCampanulate Mushroom Cap
Hymenium AttachmentAdnate Hymenium Attachment
Mushroom Ecological TypeMycorrhiza


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