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How to Identify Deadly Webcap

Cortinarius rubellus
POISONOUS — DO NOT CONSUME Season // Aug-Dec Family // Cortinariaceae

Description

Cortinarius rubellus is a mushroom characterized by its reddish-brown cap and a distinctive web-like veil that covers the gills when young. It has a robust stem and can be found in moist, wooded areas, often associated with coniferous trees.

Key Identification Features

Field marks recorded for this species. Work through all of them, not just one:

  • Cap: Reddish-brown, smooth, and slightly sticky when wet
  • Gills: Adnate to descending, with a rusty-brown spore print
  • Stem: Thick, cylindrical, and often has a bulbous base
  • Veil: Cobweb-like remnants on the cap and stem
  • Flesh: Firm and brownish, with a distinctive odor

Specimen Profile

FamilyCortinariaceae
GenusCortinarius
EdibilityPoisonous — do not consume
Toxicityhigh
SeasonAug-Dec
HabitatMoist, shaded areas in coniferous and mixed forests.
RegionFound in North America, Europe, and parts of Asia.

Habitat & Distribution

Habitat: Moist, shaded areas in coniferous and mixed forests.

Region: Found in North America, Europe, and parts of Asia.

Seasonality

Fruits from late summer to early winter.

Typical months: Aug-Dec

Common Lookalikes

Always verify identification to avoid these similar species. The differentiator is the point — learn the one or two tells that separate them:

Cortinarius orellanus (deadly)

HOW TO TELL APART

Has a more yellowish cap and is generally found in different habitats.

Cortinarius violaceus (unknown)

HOW TO TELL APART

Features a violet tint and grows in different soil types.

Cortinarius armillatus (unknown)

HOW TO TELL APART

Has a ring on the stem and a more pronounced color variation.

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Disclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.