How to identify Dung Roundhead

To correctly identify Dung Roundhead (Protostropharia semiglobata), 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 typically hemispherical to convex, smooth, and viscid (slimy when wet). The color ranges from yellowish-brown to tan. It is usually 1 to 3 cm in diameter.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   The gills are adnate (attached to the stem) and closely spaced. They are initially pale, becoming grayish to purplish-brown as the spores mature.

3. 3

   Stem

   Length, shape, surface, and any ring.

   The stem is slender, smooth, and yellowish to brownish. It is typically 3 to 7 cm long and 2 to 4 mm thick. A ring (annulus) is absent.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   The flesh is thin and yellowish.

5. 5

   Fruiting body

   Overall growth pattern.

   The fruiting body of Protostropharia semiglobata is a small to medium-sized mushroom with a distinct cap and stem.

6. 6

   Habitat

   Where it grows and on what substrate.

   This mushroom is commonly found growing on dung, especially in pastures and grassy areas. It is saprobic, meaning it obtains nutrients from decaying organic matter.

Key Facts

Cap surfaces

Smooth, viscid (slimy when wet)

Growth Form

Agaric

Spore Print

Purplish-brown

Body color

Yellowish-brown to tan

Odor

Not distinctive

Flesh bruises

Does not typically bruise

Height

3-7 cm

Cap Diameter

1-3 cm

Fruit body characteristics

• Gill attachment: Adnate (attached to the stem)
• Stem shape: Cylindrical
• Stem surface: Smooth
• Ring: Absent
• Stem cross-section: Solid

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