Velvet bolete or Slippery jack

Cap 5-12 cm across, hemispherical with an inrolled edge when young, becoming convex-flat with time. The color is yellow-brown, ocher-yellow to brownish, lighter when young, darkening with age. The surface is velvety and dryish, with tiny dark scales ("variegated" — which is where the Latin name comes from). In wet weather it becomes a little sticky, but not truly slimy.

Cap 4–12 cm across, convex in young mushrooms, later flattened-convex. The surface is covered with a thick layer of slime — especially in wet weather. Color chocolate-brown or chestnut, yellowish brown when dry. The margin often bears remnants of the partial veil.

Pores and tubes — the tubes are attached to the stem or slightly decurrent, yellowish when young, turning yellow-olive to rusty brown with age. The pores are small, the same color as the tubes. When cut or pressed they turn slightly blue — a normal reaction. Spore print rusty brown.

The hymenophore has tubes. Pores yellow, small, regular, turning yellow-green with age. The tubes are attached to the stem or run slightly down it. When pressed, the pores turn slightly brownish.

Stem 5-10 cm tall, 1.5-2.5 cm thick, thick, cylindrical, often thickening toward the base. The color is yellow-ocher, reddish in the lower part. No ring and no zone — a key difference from other Suillus. The stem flesh is firm and, when cut, turns faintly blue.

Stem 5–10 cm tall, 1–2 cm thick, solid, cylindrical. Yellow and granular in the upper part, brown or violet-brownish below the ring. A characteristic purple-brown membranous ring — a remnant of the partial veil and one of the key diagnostic features of the species.

Flesh firm, yellow, more reddish in the stem. When cut it slowly turns blue (over 1-2 minutes), then fades. The smell is faint, neutral. The taste is mild, mushroomy.

Flesh yellowish or pale cream, firm in young mushrooms, softer in mature ones. Turns slightly pink when cut or stays unchanged. The taste is mild, pleasant, slightly sourish. The cap skin peels off easily together with the slime.

Faint, pleasant, mushroomy, with no distinctive notes.

Smell pleasant, unobtrusively mushroomy, slightly resinous — reflecting its symbiosis with pine. With cooking the aroma intensifies and becomes more pronounced. No foreign unpleasant notes.