How to identify Wrinkled Thimble-cap

To correctly identify Wrinkled Thimble-cap (Gyromitra infula), 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 reddish-brown to dark brown, with a wrinkled or folded surface. It is typically 2-8 cm wide and long.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   This species does not have gills. The spore-bearing surface is on the outer surface of the cap.

3. 3

   Stem

   Length, shape, surface, and any ring.

   The stem is typically 3-10 cm long and 1-2 cm thick, hollow, and often ribbed or grooved.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   The flesh is thin and brittle.

5. 5

   Fruiting body

   Overall growth pattern.

   The fruiting body consists of a cap and a stem. The cap is typically saddle-shaped or irregularly lobed.

6. 6

   Habitat

   Where it grows and on what substrate.

   It is commonly found in coniferous woods, often near decaying wood.

Key Facts

Cap surfaces

Wrinkled, lobed

Growth Form

Solitary or scattered

Spore Print

Light yellow

Body color

Reddish-brown to dark brown

Odor

Mild

Flesh bruises

No significant bruising

Height

3-10 cm

Cap Diameter

2-8 cm

Fruit body characteristics

• Gill attachment: No gills
• Stem shape: Cylindrical, hollow
• Stem surface: Ribbed or grooved
• Ring: Absent
• Stem cross-section: Hollow

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