White dapperling or Vittadini's lepidella

The cap is 4-10 cm across, hemispherical to convex when young, later flattening out with a small bump in the centre. It's white to cream, sometimes with pale ochre or cream scales in the centre, and smooth and silky white when young. The cap skin is finely fibrous or covered with small, flattened scales. The margin is thin and inrolled when young.

The cap is 7–15 cm across, sometimes up to 18. Young caps are globular or hemispherical, then convex and finally almost flat. The colour is white, cream or ivory, turning ochre with age. The skin is dry and peels easily.

The whole cap is covered in remnants of the universal veil: dense warts, thickest in the centre, and scales that overlap like tiles towards the edge. On young caps the warts are pointed and pyramid-shaped; on older ones they're flatter and cream-yellow or greyish ochre. The edge overhangs the gills and carries hanging scraps of veil; it isn't grooved.

The gills are crowded, thin and free (not attached to the stem). They're white to cream in young mushrooms and turn creamy pinkish with age (hence the Ukrainian name, which means "red-gilled"). The spore print is white to pale pink, an important diagnostic feature (in Agaricus it's blackish brown).

The gills are free, not reaching the stem, crowded and broad, with short gills in between. They start white and become cream, sometimes with a greyish or greenish tint, but they never turn pink or brown like a field mushroom's.

The spore print is white to cream. Under the microscope the spores are amyloid, turning blue-black in iodine.

The stem is 5-10 cm tall and 0.7-1.5 cm thick, cylindrical, slightly thickened toward the base, white to cream and smooth. It has a simple membranous ring that's distinct in young mushrooms and may disappear with age.

The stem is 8–16 cm tall, sometimes 20, and 1.5–3 cm thick, white, cylindrical, slightly narrower at the top, firm and solid. It's smooth above the ring, and below it, right from the base, it's covered in bands of pointed, upturned scales. The scales go brownish with age and handling.

The ring sits high, just under the cap. It's broad, membranous, double and white, with no grooves: smooth on top and fluffy underneath. It may yellow slightly when touched.

The base roots into the soil. There's no sack-like volva of the kind a death cap has: the veil leaves only scales like those on the stem, and they're visible only on young mushrooms.

The flesh is medium-thick and white, with a barely noticeable pink tint at the base of the stem. It doesn't change colour when cut.

The flesh is white, thick and firm. It hardly changes when cut, apart from yellowing slightly at the stem base. The taste is mild and sweetish.

Faint and neutral, with no distinct notes. Don't taste it — its safety status is undetermined.

The smell is faint and pleasant; Italian mycologists liken it to clean laundry. It almost disappears with age, and old specimens can smell unpleasant, with a garlicky note from the gills.