Bay bolete

About

The Bay bolete is one of the most common tube mushrooms in the Carpathians. It most often grows in spruce and mixed forests, on acidic soils, among moss and needles, as well as near stumps. In the mountains, it is easy to find where blueberries grow and spruces thrive, that is, in the coniferous forest belt.

The cap is cushion-shaped, becoming flatter with age, chestnut or chocolate-brown, velvety in dry weather, and slippery and shiny in the rain. The tubes are pale yellow, later olive, and if pressed with a finger, they quickly turn blue. The stem is cylindrical, lighter than the cap, with brown longitudinal fibers, but without a net. The flesh is whitish or yellowish, slightly blue on the cut, with a pleasant mushroom smell.

Fruiting bodies appear from July, with the highest numbers in September and October. This mushroom finishes its season late: in a warm autumn, it can be collected in November when other tube mushrooms are almost gone.

The blueing of the flesh itself does not indicate danger: many edible tube mushrooms react this way to air. However, one should be cautious not to confuse the Bay bolete with the Bitter bolete, which has pink tubes and a dark net on the stem, as well as with the Pepper mushroom, which has a burning flesh and reddish tubes.

The Bay bolete tolerates acidic, poor soils well, so in the Gorgany, Beskids, and on the slopes of Chornohora, it is often more abundant than the White bolete. It also grows on old stumps and logs covered with moss. For personal use, mushrooms can be collected in state and communal forests without a permit, but not in reserves and protected areas of national parks.

Where in the Carpathians

The map shows where naturalists recorded the species (GBIF, CC0 and CC BY records), not every place it lives. The Ukrainian Carpathians are less studied, so a blank area does not mean the species is absent.

Countries

Ukraine · Poland · Slovakia · Romania · Czechia

Mountain ranges

Gorgany, Chornohora, Maramureș Mountains, Low Tatras, Poiana Ruscă Mountains, Sądecki Beskids, High Tatras, Little Beskids, Maków Beskids, Żywiec Beskids

Altitude belts

Foothills (below 600 m) · Beech forests (600–1200 m) · Conifer forests (1200–1600 m)

When to see it

From naturalists’ observations in the Carpathians (iNaturalist, research grade): the darker the cell, the more often the species is seen that month.

Safety

Only collect mushrooms that you can confidently identify. Leave old, wormy, and soft fruiting bodies in the forest. Mushroom dishes are not recommended for children under 12 years old. In case of the first signs of poisoning, call 112.

Look-alikes — how to tell them apart

Protection and rules

Not protected. Collecting mushrooms is prohibited in reserves and protected areas of national parks.

FAQ