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Suillus luteus, commonly known as Slippery Jack or Sticky Bun, is a bolete fungus. Its cap is typically glutinous, shiny, and brown, ranging from yellowish-brown to chocolate brown. The stem is yellowish, often with a ring. It is commonly found in coniferous forests, particularly under pine trees.
How to Identify
- Cap
- The cap is typically 5-10 cm in diameter, glutinous (slimy when wet), and brown in color, ranging from yellowish-brown to chocolate brown. It is convex when young, becoming more flattened with age.
- Gills
- Instead of gills, Suillus luteus has pores on the underside of the cap. These pores are small, angular, and yellowish, turning brownish with age. They are easily detachable from the cap.
- Stem
- The stem is 4-8 cm long and 1-2 cm thick, yellowish in color, and often has a ring (annulus) that is whitish to purplish-brown. The stem surface is often dotted with glandular dots above the ring.
- Flesh
- The flesh is soft, yellowish, and may have a slightly acidic taste.
- Fruiting body
- The fruiting body of Suillus luteus is a mushroom with a distinct cap and stem structure.
- Habitat
- Suillus luteus is commonly found in coniferous forests, particularly under pine trees. It forms a mycorrhizal relationship with the roots of the trees.
Key Facts
- Cap surfaces: Glutinous when wet
- Growth Form: Mushroom
- Spore Print: Brown
- Body color: Brown, Yellow
- Odor: Mild
- Flesh bruises: No bruising
- Height: 4-8 cm
- Cap Diameter: 5-10 cm
- Nutrient gathering: Mycorrhizal
Safe
SafeSuillus luteus is generally considered edible, but some individuals may experience gastrointestinal upset. It is important to cook it thoroughly before consumption.
Quick Check
- Odor: Mild and fruity
- Fruiting: Autumn
- Substrate: Soil under pine trees
Where to Find
Coniferous Forests
Commonly found in coniferous forests, especially under pine trees.
Europe
Widespread throughout Europe.
North America
Also found in North America.
Finding Tips
Look Under Pine Trees
Search in areas with pine trees, as Suillus luteus forms a mycorrhizal relationship with them.
Check After Rain
The glutinous cap is more apparent after rain, making it easier to identify.
Similar Species
Suillus granulatus
mushroom
Also known as: Dotted Stem Bolete
Suillus brevipes
mushroom
Also known as: Short-stemmed Slippery Jack
Scientific Classification
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Boletales
- Family
- Suillaceae
- Genus
- Suillus
Storage Information
- Max Temperature: 20
- Freezing duration: 3 months
- Min Temperature: 2
- Refrigeration: 3 days
How to Clean
To clean Suillus luteus, remove any debris or pine needles from the cap and stem. The glutinous layer on the cap can be peeled off if desired. Wipe the mushroom gently with a damp cloth.
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