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Conical Brittlestem (Parasola conopilea)

Conical Brittlestem

Safe

Parasola conopilea

Also known as: Conical Inkcap

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Description

Parasola conopilea, commonly known as the Conical Brittlestem or Conical Inkcap, is a delicate and ephemeral mushroom belonging to the family Psathyrellaceae. It is characterized by its distinctive conical cap, which often retains its shape even as it matures, unlike many other inkcaps that deliquesce rapidly. This species is saprobic, playing a role in the decomposition of organic matter in its habitat.

How to Identify

Cap
Initially acutely conical, becoming campanulate (bell-shaped) to broadly conical with age, but rarely flattening completely. The cap diameter ranges from 1 to 3 cm. The surface is radially grooved or striate from the margin almost to the center, reflecting the gills beneath. It is pale greyish-brown to ochraceous-brown, often darker at the apex, and becomes paler towards the margin. The cap is hygrophanous, meaning its color changes with moisture content, appearing darker when wet and lighter when dry. It lacks any veil remnants or scales.
Gills
Free, crowded, and narrow. Initially whitish, they become greyish-brown to blackish with age as the spores mature. They do not deliquesce (turn to black ink) as readily or completely as many other inkcap species, though some marginal deliquescence can occur.
Stem
Slender, hollow, fragile, and cylindrical, often slightly tapering upwards. It measures 4 to 12 cm in length and 1 to 3 mm in diameter. The surface is smooth, whitish to translucent, and often pruinose (finely powdered) towards the apex. There is no ring or volva.
Flesh
Very thin, fragile, and whitish to pale grey. It has no distinctive odor or taste.
Fruiting body
The fruiting body is slender and fragile, typical of the genus Parasola. It is not a robust mushroom and can be easily overlooked.
Habitat
Saprobic, growing solitarily or in small scattered groups on rich, disturbed soil, lawns, gardens, wood chips, and grassy areas, often in nutrient-rich environments. It is particularly common in urban and suburban settings.

Key Facts

  • Cap surfaces: Radially grooved/striate, hygrophanous
  • Growth Form: Solitary to scattered
  • Spore Print: Black
  • Body color: Pale greyish-brown to ochraceous-brown cap, whitish stem
  • Odor: Indistinct
  • Flesh bruises: No
  • Height: 4-12 cm
  • Cap Diameter: 1-3 cm
  • Nutrient gathering: Saprobic

Safe

Safe

Parasola conopilea is generally considered non-toxic, but it is too small and insubstantial to be of any culinary interest. It is not recommended for consumption due to its fragility and lack of flavor. There are no known reports of toxicity, but caution is always advised with any wild mushroom. It is crucial to avoid consuming any mushroom unless positively identified by an expert.

Toxin Type: None knownReaction Type: None known

Quick Check

  • Odor: Indistinct
  • Fruiting: Late spring to autumn
  • Substrate: Soil, wood chips, grassy areas

Where to Find

Europe

Widespread across temperate regions of Europe, commonly found in parks, gardens, and along roadsides.

North America

Also common in North America, particularly in disturbed habitats and cultivated areas.

Asia

Reported from parts of Asia, though its distribution may be less thoroughly documented.

Finding Tips

Timing

Look for this species from late spring through autumn, especially after periods of rain. It is an ephemeral mushroom, often appearing and disappearing within a day or two.

Habitat Focus

Concentrate your search in well-maintained lawns, garden beds, and areas with wood chip mulch, as these provide ideal conditions for its growth.

Observation

Due to its small size and delicate nature, careful observation is required. Look closely at the ground, especially in grassy areas.

Similar Species

Pleated Inkcap

Parasola

Also known as: Parasola plicatilis

Glistening Inkcap

Coprinellus

Also known as: Coprinellus micaceus

Common Inkcap

Coprinopsis

Also known as: Coprinopsis atramentaria

Scientific Classification

Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Psathyrellaceae
Genus
Parasola

Storage Information

  • Max Temperature: Not applicable
  • Freezing duration: Not applicable
  • Min Temperature: Not applicable
  • Refrigeration: Not applicable

How to Clean

Not applicable, as this mushroom is not considered edible.

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