How to identify Brittlegill

To correctly identify Brittlegill (Russula adusta), check each of these features in order. Misidentification is the most common cause of mushroom poisoning, so cross-reference multiple sources.

Step-by-step identification

1. 1

   Cap

   Shape, color, surface texture, and diameter.

   The cap is initially convex, then flattens and becomes depressed in the center. It is typically dark brown to blackish, often with a greyish bloom. The surface can be sticky when wet.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   The gills are adnate to slightly decurrent, brittle, and widely spaced. They are initially white, turning greyish with age.

3. 3

   Stem

   Length, shape, surface, and any ring.

   The stem is stout, cylindrical, and white to greyish. It often has brown stains at the base.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   The flesh is firm and white, turning greyish when cut or bruised.

5. 5

   Fruiting body

   Overall growth pattern.

   The fruiting body is a mushroom with a cap and stem.

6. 6

   Habitat

   Where it grows and on what substrate.

   It is found in deciduous and coniferous forests.

Key Facts

Cap surfaces

Slightly sticky when wet

Growth Form

Solitary or scattered

Spore Print

White to cream

Body color

Dark brown to blackish

Odor

Mild

Flesh bruises

Greyish

Height

5-15 cm

Cap Diameter

5-20 cm

Fruit body characteristics

• Gill attachment: Adnate to slightly decurrent
• Stem shape: Cylindrical
• Stem surface: Smooth
• Ring: Absent
• Stem cross-section: Solid

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