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Lepiota micropholis is a species of mushroom producing fungus in the family Agaricaceae.

Taxonomy
It was first described in 1871 by the British mycologists Miles Joseph Berkeley and Christopher Edmund Broome who classified it as Agaricus (Lepiota) micropholis.

It was reclassified as Lepiota micropholis in 1887 by the Italian mycologist Pier Andrea Saccardo.

The British mycologist Mordecai Cubitt Cooke included an illustration of this species in his 1881-1891 book  'Illustrations of British Fungi'.

In 1951 the French mycologist Marcel Locquin reclassified Berkeley and Broome's Agaricus micropholis as Lepiota micropholis perhaps unaware that Saccardo had already done so.

Illegitmate name?

Description
Lepiota micropholis is a small dapperling mushroom.

Cap: 1.5-3 cm wide starting campanulate before expanding to hemispherical or flattening with only a very slight umbo remaining on the centre disc. The surface is white and covered in tiny dark scales that are grey, brownish-grey or sooty and almost black. They are more dense in the centre of the cap but sparser and lighter towards the edges. The cap margins are straight and fringed, sometimes with slight striations. The flesh is very thin, white and fragile. Stem: 2-3cm tall and 1-2.5mm thick with a slightly swollen base. The surface is white with a slightly pruinous or satiny coating. It is cylindrical and hollow, stuffed with white fibrils inside. The persistent, membranous stem ring is brown with white fibrils. The flesh bruises brownish pink when touched or damaged. Gills: Free, white and crowded. Spores: '5/3.5 - 6/4' μm.

Habitat and distribution
L. micropholis is scarcely recorded and little known.