How to identify Common Lawn Bonnet

To correctly identify Common Lawn Bonnet (Mycena abramsii), 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.

   0.5 to 2.5 cm in diameter, conical to campanulate, often with a slight umbo, hygrophanous, pale greyish-brown to whitish.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   Adnate to subdecurrent, pale, close together, often with a slight edge discoloration.

3. 3

   Stem

   Length, shape, surface, and any ring.

   2 to 7 cm long, thin, hollow, fragile, smooth to slightly pruinose at the top.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   Thin, fragile, and lacks significant substance.

5. 5

   Fruiting body

   Overall growth pattern.

   Small, fragile, typical mushroom shape with a cap on a thin stem.

6. 6

   Habitat

   Where it grows and on what substrate.

   Typically found on rotting wood, twigs, or debris, especially of deciduous trees; occasionally on buried wood in grassy areas.

Key Facts

Cap surfaces

Smooth to slightly translucent-striate.

Growth Form

Solitary or in small groups.

Spore Print

White.

Body color

Pale grey, beige to whitish.

Odor

Bleach or chemical/alkaline.

Flesh bruises

No significant bruising.

Height

2-8 cm.

Cap Diameter

0.5-2.5 cm.

Fruit body characteristics

• Gill attachment: Adnate to subdecurrent.
• Stem shape: Cylindrical and thin.
• Stem surface: Smooth to finely pruinose.
• Ring: Absent.
• Stem cross-section: Hollow.

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