Everything about Suillus Luteus totally explained
Suillus luteus is a
pored mushroom of the genus
Suillus in the
Suillaceae family. It has a white stalk with a distinctive ring and an often slimy brown cap, earning it the name
Slippery Jack in North America. When dry the cap may be sticky, hence an alternate common name
Sticky bun.
S. luteus is an
edible mushroom that can be found all over the northern hemisphere and often grows in a
symbiosis (
Mycorrhiza) with
pine. The slime coating, however, may cause
indigestion if not removed.
Description
The
cap is yellow to chocolate-brown and up to 12 cm in diameter at maturity. The cap is initially hemispherical, later flattening out. It is slimy to the touch, bare, smooth, and glossy even when dry. The
pores are at first light yellow but turn olive to dark yellow later on and grow down the stalk a little. The
stalk grows to a height of about 6 to 12 cm and to a width of about 1 to 2.5 cm. Usually it looks like a cylinder, sometimes enlarges at the bottom so that it has more of a pear shape. A white
velum connects a the stalk to the cap when young. At maturity the remains of the velum form a ring around the stalk; the Slippery Jack is one of few mushrooms of the genus
Suillus that sport such a ring.
Similar species
Suillus luteus is often confused with
Suillus granulatus, which doesn't have a ring around its stalk and prefers rather
alkaline soil with relatively high
lime content. Other than that,
Suillus luteus is unlikely to be confused with other mushrooms, especially if its preferred home under pine trees and the whitish
velum are taken into consideration.
Distribution and habitat
Suillus luteus can be found all over the
northern hemisphere. It is found in pine forests from the coast to the mountains and exhibits a special liking for the cold-temperate
climate. It doesn't require a specific
soil but seems to prefer
acidic and nutrient-deficient soil. In September and October it can frequently be found in clusters.
It has also been found under pine trees in introduced pine plantations in
Australia, particularly in the
Blue Mountains and
Southern Highlands and
New Zealand. There it can be picked around Easter.
Edibility
This
mushroom is edible but may occasionally cause
allergic reactions in some people. The pores should be removed prior to preparation and the fungus is better cooked before eating. In Russian, Slippery Jacks are known as
maslayata ("buttery ones"). They are frequently marinated and are considered a delicacy. However, some people may find them excessively slippery. Gastrointestinal symptoms could be due to high levels of
arabitol.
Further Information
Get more info on 'Suillus Luteus'.
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