Suillus serotinus

Suillus serotinus (Frost) Kretzer & T.D. Bruns 594289

Suillus serotinus is a species of mushroom belonging to the genus Suillus. It is part of the fungal family Boletaceae, known for its distinctive spore-bearing structures and relationship with trees in forest ecosystems. Suillus serotinus is particularly noted for its ectomycorrhizal association with conifers, especially species of pine (Pinus). This symbiotic relationship is crucial for nutrient exchange between the soil and the tree, benefiting both partners.

Description

Suillus serotinus mushrooms are characterized by their large, brown to dark brown caps, which can measure up to 15 cm in diameter. The cap surface is typically sticky or slimy, a common trait among Suillus species. Underneath the cap, instead of gills, they possess yellow to olive-yellow pores that are easily separable from the cap flesh. The stipe (stem) is robust, often with a ring or a veil remnant, and the same color or slightly lighter than the cap. The flesh of the mushroom is firm, white, and does not change color upon exposure to air.

Habitat and Distribution

Suillus serotinus is found in temperate regions across the Northern Hemisphere. It forms ectomycorrhizal associations predominantly with pines, thriving in both mixed and pure pine forests. These mushrooms are most commonly encountered from late summer to fall, growing in groups or singly on the forest floor. Their distribution includes various parts of Europe, North America, and possibly Asia, reflecting the wide range of pine species with which they associate.

Edibility

The edibility of Suillus serotinus is considered to be edible, though not highly esteemed. Like many members of the Suillus genus, it can be slimy and may require special preparation to improve texture and flavor, such as peeling the cap and discarding the slimy layer. It is always recommended to cook Suillus mushrooms thoroughly before consumption to avoid gastrointestinal discomfort.

Conservation

Currently, there are no major conservation concerns for Suillus serotinus, as it is relatively widespread and common in suitable habitats. However, like all fungi, its presence is dependent on the health of its ecosystem, particularly the forests and the pine trees it associates with. Conservation of pine forests and responsible forest management practices are essential to ensure the continued abundance of Suillus serotinus and other ectomycorrhizal fungi.

See Also

• Mycorrhiza
• Boletaceae
• Pine
• Mushroom hunting