Yellow-brown butter dish (Suillus variegatus)Systematics:
- Department: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Agaricomycetidae (Agaricomycetes)
- Order: Boletales
- Family: Suillaceae (Oily)
- Genus: Suillus (Oily)
- Species: Suillus variegatus (Buttercup yellow-brown)
- Other names for the mushroom:
- Butter dish variegated
- Swamp moss
- Sandy moss
- Flywheel yellow-brown
Butter dish variegated
- Boletus variegatus
- Ixocomus variegatus
- Boletus squalidus
Cap: In a yellow-brown oiler, the cap is initially semicircular with a tucked edge, later cushion-shaped, 50-140 mm in diameter. The surface is initially olive or gray-orange, pubescent, which gradually cracks into small scales that disappear in maturity. In young mushrooms, it is gray-yellow, gray-orange, later brown-reddish, light ocher at maturity, sometimes slightly slimy. The peel is very difficult to separate from the pulp of the cap. The tubules are 8-12 mm in height, at first adherent to the stem, later slightly cut, at first yellow or light orange, dark olive at maturity, slightly blue at the cut. The pores are small at first, then larger, gray-yellow, then light orange and finally brown-olive, when pressed slightly turn blue.
Leg: The leg of a yellow-brown oiler is cylindrical or clavate, 30-90 mm high and 20-35 mm thick, smooth, lemon-yellow or lighter in color, in the lower part it is orange-brown or reddish.
Flesh: Firm, light yellow, light orange, lemon-yellow above the tubules and under the surface of the stem, brownish at the base of the stem, slightly blue in places on the cut. Without much taste; with the smell of pine needles.
Spore powder: Olive brown.
Spores: 8-11x 3-4 microns, ellipsoid-fusiform. smooth, light yellow.
Growth: The yellow-brown butter dish grows primarily on sandy soil from June to November in coniferous and mixed forests, often in very large quantities. Fruit bodies appear singly or in small groups.
Habitat: Yellow-brown butter dish is known in Europe; in Russia — in the European part, in Siberia and the Caucasus, reaching the north to the limit of pine forests, as well as in the mountain forests of Siberia and the Caucasus.
Use: Edible (3rd category). Little known edible mushroom, but not very tasty. Young fruiting bodies are best pickled.
Similarity: The yellow-brown oiler resembles a flywheel, for which it is often called a yellow-brown flywheel .