Common oak tree (Suillellus luridus)
Systematics:- Department: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Agaricomycetidae (Agaricomycetes)
- Order: Boletales
- Family: Boletaceae
- Genus: Suillellus (Suillellus)
- Species: Suillellus luridus (Common oak tree)
Synonyms:
Dubovik
Olive brown oak tree
Poddubnik
Bruise
Bolette dirty brown
Boletus luridus
Oak's Hat:
It is very large (5-15 cm in diameter, sometimes up to 20), massive, in young mushrooms it is hemispherical, as if “put on” on a leg, as it ripens, it opens up, acquiring a cushion shape. The surface is velvety, irregularly colored, from yellowish brown to gray-brown; these colors can be combined within the same hat. The flesh of the cap is yellowish, dense, at the break it quickly acquires an intense blue-green color, then gradually turns black. It has no distinct smell and taste.
Hymenophore:
The tubular layer is free, relatively narrow, and the pores are small. The color changes significantly as the mushroom matures - ocher in young specimens, it acquires orange and red in order to become dirty olive at maturity.
Spore powder:
Olive brown.
Oak tree leg:
Thick, clavate, 5-12 cm high, 3-6 cm thick, yellowish at the top and darker at the bottom. The surface is covered with a noticeable dark mesh, which is a good distinguishing feature of the common oak tree. The flesh of the leg may be red at the base.
Spread
Dubovik is found everywhere, but not very often, in deciduous and mixed forests, forming mycorrhiza with oaks and lindens. According to the literature, it begins to grow in late May-early June, then disappears for a while, in order to reappear in early August and stably bear fruit until the end of September. From personal experience, he gives out a mushroom at three years old in early September.
Similar species
White mushroom (Boletus edulis)
very similar in texture to ordinary oak tree, with which it can hardly be confused.
Speckled oak (Neoboletus erythropus)
sometimes similar in description, but that one is much more "burgundy", and most importantly, it does not have a noticeable mesh on the leg, only individual points.There are quite a lot of blue large representatives of the genus Boletus, there are also very (according to the description) similar, but hardly in our area.
Edibility
A good mushroom may be worse than a white one, but better than most others. According to some (obviously outdated) data, it is not compatible with alcohol, which is only good for a good person.
Notes from other sources
The mushroom contains poisonous substances that break down during cooking. Uncooked or poorly cooked causes intestinal upset. Joint use with alcohol is also not recommended.