About Suillellus queletii (Schulzer) Vizzini, Simonini & Gelardi
Suillellus queletii has a hemispherical cap that flattens out as it matures. Its cap color ranges from olive to reddish-brown, and very rarely it may also be dark red. The mushroom's flesh is yellow, and turns blue when cut. The pores are yellow when young, quickly turn orange, and can become reddish at full maturity. The stipe is smooth and golden yellow, and the flesh has a slightly acrid taste. The spore powder of this species is olive in color. Under microscopic observation, the spores are somewhat spindle-shaped, and measure approximately 10-14 μm by 5-7 μm. This is a mycorrhizal mushroom that grows in deciduous forests at lower altitudes, forming associations with beech, oak, or hazel trees. It is an uncommon species in Europe, and it is classified as endangered in the Czech Republic. In Asia, it has been recorded growing in Taiwan.
