Pavement mushroom or Horse mushroom

Cap 5-15 cm across, in young mushrooms compactly hemispherical to flat-convex, the edge often inrolled. Color white to cream, sometimes with a pale brownish tint in the center. Surface smooth, slightly sticky in wet weather. Often with a partial veil at the edge when young: a thin membranous fringe.

Cap 6-20 cm across; in young mushrooms firmly hemispherical to egg-shaped, the margin often rolled under. Later it becomes convex to flat. Color pure white to cream, with subtle yellowish tints in old mushrooms; spots yellow to ocher when touched. Surface smooth, slightly sticky in wet weather, dry and matte in dry weather. Sometimes with fine fibrous scales in the center.

Gilled hymenophore: gills free, crowded. When young they are pale pink to bright pink, and with age they become dark brown to chocolate-blackish. Spore print dark brown.

Gilled hymenophore — gills free, crowded. When young — grayish-white, with a pinkish tinge, becoming with age dark brown, chocolate-blackish. Spore print dark brown.

Stem 3-8 cm tall, 1.5-3 cm thick, thick, meaty, cylindrical, narrowing toward the base. Color white. A distinctive double ring structure: in the upper part of the stem there are two membranous rings close together (hence the name bitorquis). This is the diagnostic feature of the species.

Stem 6-12 cm tall, 1.5-3 cm thick, thick, fleshy, cylindrical, slightly thickened at the base. Color white to cream. On the upper part — a large membranous double ring with a characteristic "toothed" lower edge (like a cogwheel) — a diagnostic feature of the species.

Flesh firm, meaty, white; when cut it slowly turns pinkish to brownish. Pleasant mushroomy smell with a fresh note. Mild taste, similar to the store-bought mushroom.

Flesh firm, meaty, white; when cut it slowly yellows in the flesh of the cap and upper stem. Does not redden (unlike A. silvaticus). The smell is a distinct anise-almond — a characteristic feature of the species.

Pleasant and mushroomy, like fresh store-bought button mushrooms. It does not smell of ink or medicine (that would point to the yellow stainer).

Distinctly anise-almond, fruity — the most characteristic diagnostic sign. It comes out when you rub the flesh between your fingers. This smell is one of the most pleasant mushroom experiences in field foraging.