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Coprinus micaceus

 
From tree stumps or buried wood, Coprinus micaceus, the Mica Ink-cap, arises in small clumps from spring until early winter. It is a potentially poisonous fungus.

Identification guide

Cap

Covered at first in tiny white granules - the remains of the veil - these egg-shaped caps become bell shaped and lose their mica-like grains as they age.

The caps are typically 2 to 4 cm tall and of similar diameter when they open out. The cap colour is ochre-brown, with a russet central 'eye', and turns grey-brown as it ages.

Gills

The gills are white, turning purple-brown and then blackening before deliquescing (autodigesting and becoming a black inky fluid).

Stipe

The white stem is brown at the base, typically 2 to 5 mm in diameter and up to 10 cm tall. 

Spore print

Black.

Odour/taste

Not distinctive.

Habitat

On or beside broad-leaved tree stumps and dead roots.

Season

May to November.

Occurrence

Very common.

Similar species

  1. Coprinus disseminatus also appears in large groups but does not have mica-like granules.
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