Russula integra or Russula brunneoviolacea

Cap 6-15 cm across, when young hemispherical, with age becoming flat and spread out with a slightly depressed center. The skin is smooth, slimy in wet weather, dry and matte in dry weather, peels easily over 2/3 of the cap toward the center. Color: dark purple, chestnut-purple, wine-red, with a darker center and lighter margin. In mature specimens the margin has fine radial grooves resembling coarse ribbing.

Cap 3-8 cm across, when young convex with an inrolled margin, with age becoming flattened with a slightly depressed center. The cap skin is smooth, slightly slimy in wet weather, dry and matte in dry weather, peels back about 2/3 of the way to the center. Color: dark violet to violet-blackish at the center, with a characteristic transition to chestnut-brown and ochre at the margin. In mature specimens the margin has fine radial grooves.

Gilled hymenophore — the gills are attached or free from the stem, moderately spaced, fleshy, brittle. Color when young: whitish, with age turning ochre-cream to yellowish from the ripe yellow-ochre spores. Spore print yellow-ochre — a diagnostic feature (distinguishes it from the rusty brown of webcaps).

Gilled hymenophore — the gills are attached or free from the stem, moderately crowded, thin, brittle. Color: whitish at first, creamy ochre-yellowish with age because of the ripe spores. Spore print yellow-ochre — a diagnostic feature (sets it apart from the white print of R. vesca and others).

Stem 4-8 cm tall, 1.5-3 cm thick, firm, fleshy, cylindrical, hollow inside in old specimens. Color: white to creamy white, with a faint yellowish tint when old, browning toward the base. Surface smooth with fine lengthwise wrinkles. No ring.

Stem 3-7 cm tall, 0.8-2 cm thick, firm, cylindrical, hollow inside in old specimens. Color: whitish, often with a faint pink or ochre tinge toward the base, with brownish-ochre spots in old specimens. Surface smooth with fine lengthwise wrinkles. No ring.

Flesh firm, brittle, white; where cut, it slowly turns yellow (a reaction typical of the genus Russula). Smell pleasantly mushroomy, with a fruity note in mature specimens, taste mild, sweetish and nutty, with no bitterness or acridity — a diagnostic feature.

Flesh firm, brittle, white, when cut slowly turns yellow. Smell faint, pleasant, fruity-mushroomy, taste mild, sweetish and nutty, with no bitterness or acridity.

Pleasantly fruity-mushroomy, with no sharp notes.

Faint, pleasant, fruity-mushroomy, neutral.