Appearance
Leucocoprinus brebissonii is a small, delicate, mushroom with white and brittle flesh. Its cap (2 to 3 cm (0.8 to 1.2 in)) starts out conical expanding to a plane in age, with a dark brown/gray center that breaks up and radiates outwards on a white and deeply striated background. The white stem of L. brebissonii is long and slender (4.5 to 6 cm (1.8 to 2.4 in) by 3 to 6 mm (0.12 to 0.24 in)), equal or slightly clavate. It usually has a ring present, but due to its fragile nature sometimes it is rubbed or washed off. Its gills are crowded, white and narrowly attached to the stem, but occasionally detach in age. The spores (9 to 12 µm x 5.5 to 7 µm) are white and have a pronounced germ pore, elliptical or almond shape.[4][5]
Distribution
Leucocoprinus brebissonii is found in Europe and North America from summer to fall
Habitat
Grows in the soil in woods with deciduous trees.References:
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https://en.wikipedia.org/wiki/Leucocoprinus_brebissonii